LG H24F39DT, H25F34Y Service Manual

Zenith

SERVICE MANUALSERVICE MANUALSERVICE MANUAL

Product Type:
Chassis
Manual Series:
Manual Part #:
Model Line:
Product Year:

Commercial Color TV
CL
SR25
3828VD0171B
F
2005

Model Series:

H19F34DT
H20F34DT
H24F34DT
H25F34DT
H24F39DT
H25F39DT
H27F34DT
H27F39DT
H24F36DT
H25F36DT
H27F36DT

H32F36DT
H27F36S

Printed in U.S.A.

CONTENTS

General Information/Remote Controls................................

Installer ’s Menu ............................................................

Servicing/Trobleshooting ................................................

Model/Module Parts List .................................................

Exploded Views .............................................................

Schematics ...................................................................

Published by

Technical Publications

Zenith Electronics Corporation

P.O. Box 240007

Huntsville, Al 35824

Copyright May 2005 by Zenith Electronics Corporation ©

1
2
3
4
5
6

PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO-VIDEO PRODUCTS

A

IMPORTANT SAFETY NOTICE

This Manual was prepared for use only by properly trained audio-visual service
technicians.
When servicing this product, under no circumstances should the original design
be modified or altered without permission from Zenith Electronics Corporation.
All components should be replaced only with types identical to those in the
original circuit and their physical location, wiring and lead dress must conform
to original layout upon completion of repairs.

Special components are also used to prevent x-radiation, shock and fire hazard.
These components are indicated by the letter “x” included in their component
designators and are required to maintain safe performance. No deviations are
allowed without prior approval by Zenith Electronics Corporation.

Circuit diagrams may occasionally differ from the actual circuit used. This way,
implementation of the latest safety and performance improvement changes into
the set is not delayed until the new service literature is printed.

Caution: Do not attempt to modify this product in any way. Never perform
customized installations without manufacturer’s approval. Unauthorized
modifications will not only void the warranty, but may lead to property damage
or user injury.

Service work should be performed only after you are thoroughly familiar with
these safety checks and servicing guidelines.

Graphic symbols

The exclamation point within an equilateral triangle is intended
to alert the service personnel to important safety information in
the service literature.

The lightning flash with arrowhead symbol within an equilateral
triangle is intended to alert the service personnel to the presence
of noninsulated “dangerous voltage” that may be of sufficient
magnitude to constitute a risk of electric shock.

The pictorial representation of a fuse and its rating within an
equilateral triangle is intended to convey to the service
personnel the following fuse replacement caution notice:
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,
REPLACE ALL FUSES WITH THE SAME TYPE AND RATING AS MARKED
NEAR EACH FUSE.

SERVICE INFORMATION

While servicing, use an isolation transformer for protection from AC line shock.

After the original service problem has been corrected, make a check of the
following:

FIRE AND SHOCK HAZARD

1. Be sure that all components are positioned to avoid a possibility of adjacent
component shorts. This is especially important on items transported to and
from the repair shop.

2. Verify that all protective devices such as insulators, barriers, covers, shields,
strain reliefs, power supply cords, and other hardware have been reinstalled
per the original design. Be sure that the safety purpose of the polarized line
plug has not been defeated.

3. Soldering must be inspected to discover possible cold solder joints, solder
splashes, or sharp solder points. Be certain to remove all loose foreign
particles.

4. Check for physical evidence of damage or deterioration to parts and
components, for frayed leads or damaged insulation (including the AC
cord), and replace if necessary.

5. No lead or component should touch a receiving tube or a resistor rated at
1 watt or more. Lead tension around protruding metal surfaces must be
avoided.

6. After re-assembly of the set, always perform an AC leakage test on all exposed
metallic parts of the cabinet (the channel selector knobs, antenna terminals,
handle and screws) to be sure that set is safe to operate without danger of
electrical shock. DO NOT USE A LINE ISOLATION TRANSFORMER DURING THIS
TEST. Use an AC voltmeter having 5000 ohms per volt or more sensitivity in
the following manner: Connect a 1500 ohm, 10 watt resistor, paralleled by
.15 mfd 150V AC type capacitor between a known good earth ground (water
pipe, conduit, etc.) and the exposed metallic parts, one at a time. Measure
the AC voltage across the combination of 1500 ohm resistor and .15mfd
capacitor. Reverse the AC plug by using a non-polarized adaptor and repeat
AC voltage measurements for each exposed metallic part. Voltage measured
must not exceed 0.75 volts RMS. This corresponds to 0.5 milliamp AC. Any
value exceeding this limit constitutes a potential shock hazard and must be
corrected immediately.

.C. Voltmet er

Good Earth Ground
such as the Water
Pipe, Conduit, etc.

0.16uF

1600 OHM

10 WATT

Place this probe
on each exposed
metal part.

X-RADIATION

1. Be sure procedures and instructions to all service personnel cover the
subject of x-radiation. The only potential source of x-rays in current TV
receivers is the picture tube. However, this tube does not emit x-rays when
the HV is at the factory-specified level. The proper value is given in the
applicable schematic. Operation at higher voltages may cause a failure of
the picture tube or high-voltage supply and, under certain circumstances
may produce radiation in excess of desirable levels.

2. Only factory-specified CRT anode connectors must be used.

3. It is essential that the service personnel have available an accurate and
reliable high-voltage meter.

4. When the high-voltage circuitry is operating properly, there is no possibility
of an x-radiation problem. Every time a color chassis is serviced, the
brightness should be run up and down while monitoring the high voltage
with a meter, to be certain that the high voltage does not exceed the
specified value and that it is regulating correctly.

5. When troubleshooting and making test measurements in a product with a
problem of excessively high voltage, avoid being unnecessarily close to
the picture tube and the high voltage power supply. Do not operate the
product longer than necessary to locate the cause of excessive voltage.

6. Refer to HV, B+, and shutdown adjustment procedures described in the
appropriate schematics and diagrams (where used).

IMPLOSION

1. All direct view picture tubes are equipped with an integral implosion
protection system; take care to avoid damage during installation.

2. Use only the recommended factory replacement tubes.

TIPS ON PROPER INSTALLATION

1. Never install any receiver in a closed-in recess, cubbyhole, or closely
fitting shelf space over, or close to, a heat duct, or in the path of heated
air flow.

2. Avoid conditions of high humidity such as: outdoor patio installations
where dew is a factor, near steam radiators where steam leakage is a factor,
etc.

3. Avoid placement where draperies may obstruct venting. The customer
should also avoid the use of decorative scarves or other coverings that
might obstruct ventilation.

4. Wall- and shelf-mounted installations using a commercial mounting kit
must follow the factory-approved mounting instructions. A product mounted
to a shelf or platform must retain its original feet (or the equivalent
thickness in spacers) to provide adequate air flow across the bottom. Bolts
or screws used for fasteners must not touch any parts or wiring. Perform
leakage tests on customized installations.

5. Caution customers against mounting a product on a sloping shelf or in a
tilted position, unless the receiver is properly secured.

6. A product on a roll-about cart should be stable in its mounting to the cart.
Caution the customer on the hazards of trying to roll a cart with small
casters across thresholds or deep pile carpets.

7. Caution customers against using a cart or stand that has not been listed
by Underwriters Laboratories, Inc. for use with its specific model of
television receiver or generically approved for use with TVs of the same or
larger screen size.

8. Caution customers against using extension cords. Explain that a forest of
extensions, sprouting from a single outlet, can lead to disastrous
consequences to home and family.

i

PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO-VIDEO PRODUCTS

X-Radiation

To preven t possible exposure to x-radi ation caused by ex cessive CRT
anode voltage, the CL chassis incorporate a “High Voltage Shut­down” circuit. This circuit senses the level of a flyback pulse from the
“Flyback Transformer” representative of the actual high voltage on
the CRT anode. When this level exceeds a predetermined voltage, the
circuit shuts down the TV set, preventing further generation of anode
voltage.

Shutdown Circuit Operation

(Refer to Figure below)
The flyback pulse voltage from pin 6 of TX3204 (Flyback Transformer)
is peak detected (rectified) by the action of diode DX3006 and ca­pacitor CX3003. This forms a DC voltage appearing on CX3003 repre­sentative of the CRT anode voltage (HV) produced by TX3204. This
voltage is divided down by precision resistors RX3013, RX3015,
RX3016 and RX3022. This lower voltage appears on the zener diode
ZDX3004; when this voltage exceeds by 3.5 Vdc the “zener voltage”
the HV shutdown occurs (pin 29 of ICX2200).

CRT Anode High Voltage Measurement Procedure
Each CRT screen size has its own safe operating anode and shut-

down voltage. Critical safety component (designated with an ‘X’ in
the component designator) are designed to operate the CRT at a
safe operating anode voltage and provide proper shutdown thresh­olds. If replacement of any of these components are deemed
necessary, it is important to use original type Zenith compo­nents. After replacement is made, confirm proper anode voltage
using the following procedure.

Measurement of the CRT anode voltage must be performed using a
high impedance-high voltage meter, with no raster on the screen,
and operating at nominal horizontal frequency, 15.75 Khz (NTSC
signal).

After discharging the CRT, connect a high impedance-high voltage
meter to the CRT anode. Turn the television ‘on’ and confirm a good
signal is being displayed. Reduce Brightness and Contrast settings
until the picture is well extinguished.

Observe the anode voltage meter reading and compare with the
table below for the proper CRT screen size. If the voltage reading is
higher than the maximum, verify circuit component values and
proper operation.

CRT anode Voltage

CRT Screen Size

19" 26 ± 1.0 32
20” 26 ± 1.0 32

24"/25 28 ± 1.0 34

27” 28 ± 1.0 34
32” 30 ± 1.0 36

COMPONENTS WITH ANY INFLUENCE IN HV INCREASE

CX3216 RX3015

CX3210 RX3013
CX3212 ZDX3004
CX3252 RX3704

CX3256 RX3703
RX3022 RX3705
RX3016 RX3706

Nominal Anode Voltage

(KV)

Fly-Back Transformer

Deflection Yoke

Max. Shutdown Voltage

(KV)

HV SHUTDOWN PROCEDURE.

·After discharging the CRT, connect a high impedance-high volt­age meter to the CRT anode

·Access Video Menu and adjust Brightness and Contrast controls
for minimum screen luminance (beam current to 0 mA).

·Wait until the Video Menu or display disappear.

·Connect a variable Resistor (1 MW) in parallel with RX3704, and
decrease slowly the resistance value until shutdown occurs.

·Measure High Voltage shutdown.

Flyback Pulse

IN

From Pin 6

TX3204

RX3211

DX3006

CX3003

RX3013

RX3008

ZDX3004

RX3022

RX3015

RX3016

QX3002

RMX3009

ii

CX3004

+5v

QX3001

RMX3021

SHUTDOWN

OUT

TO PIN 4
IC6000

TABLE OF CONTENTS

SECTION 1......GENERAL INFO

PRODUCT SAFETY SERVICING GUIDELINES i~ii

INTRODUCTION ........................ 1-1

OVERVIEW ........................ 1-1

INTERFACES .......................... 1-2

SUPERPORT - MPI ................. 1-2

MULTIPLE PROTOCOL INTERFACE ...... 1-2

EBC (EDGE BOARD CARD) ............ 1-2

CONNECTION CENTER ON BACK OF TV .. 1-2

REMOTE CONTROL ...................... 1-4

LT-2000/02 CLONE PROGRAMMER ......... 1-5

QUICKSET II PROGRAMMER ........... 1-5

LEARN FROM TV ................... 1-5

WRITE TO TV ..................... 1-5

SET CLONE CLOCK FROM TV .......... 1-6

SET TV CLOCK FROM CLONE .......... 1-6

DISPLAY TV SETUP ................ 1-6

DISPLAY CLONE SETUP .............. 1-6

OPERATION NOTES ................. 1-6

USER MENUS .......................... 1-7

SETUP MENU ...................... 1-7

AUTOPROGRAM....................... 1-7

ADD/DEL/BLNK .................... 1-7

CHANNEL LABELS ................. 1-7

CLOCK SET ....................... 1-8

TIMER ........................... 1-8

CAPTIONS ........................ 1-8

LANGUAGE ........................ 1-8

AUDIO MENU ...................... 1-9

VIDEO MENU ...................... 1-9

PARENTAL CONTROL ............... 1-10

ON-SCREEN DISPLAYS ............. 1-11

CHANNEL/TIME/AUDIO DISPLAY ...... 1-11

CH PREVIEW MENU ................ 1-11

CAPTIONS DISPLAY ............... 1-12

SOURCE MENU .................... 1-12

SECTION 2.......FACTORY &

INSTALLERS MENU

ACCESING INSTALLERS MENU .............2-1

INSTALLERS MENU ADJUSTMENTS ...... 2-1

ADJUSTMENT CHART ................. 2-6

ACCESING FACTORY MENU (34-36 SERIES) 2-8

FACTORY MENU OPTIONS ............. 2-8

ACCESING FACTORY MENU (39 SERIES) .. 2-11

FACTORY MENU OPTIONS ............ 2-11

SECTION 3.........SERVICING

SERVICING ........................... 3-1

GENERAL INFORMATION .............. 3-1

MODULE-LEVEL SERVICING ........... 3-1

SERVICING THE POWER SUPPLY ....... 3-1

IF SERVICING .................... 3-4

AGC DELAY ....................... 3-4

G2 ADJUSTMENT......................3-4

FOCUS ADJUSTMENT ................ 3-4

ADJUSTMENT OF RGB CUTOFF ......... 3-4

SWITCHING PROCESS..................3-5

SENSING AND PRIORITIES.............3-5

PRELIMINARY SETUP ............... 3-6

PURITY ADJUSTMENT ............... 3-6

CONVERGENCE ADJUSTMENT ........... 3-6

VERTICAL-TILT WEDGE ADJUSTMENT.....3-7

HORIZONTAL-TILT WEDGE ADJUSTMENT . 3-7

UNUSUAL TILT CASE ............... 3-7

IMPROVING CRT CORNER PURITY........3-7

MODIFICATION.......................3-7

SECTION 4.......MODEL PARTS

H19F34DT ........................ 4-1

H20F34DT ........................ 4-1

H25F34DT ........................ 4-1

H25F39DT ........................ 4-1

H27F34DT ........................ 4-2

H27F39DT...........................4-2

H25F36DT ........................ 4-2

H27F36DT ........................ 4-2

H27F36S ......................... 4-2

H32F36DT...........................4-2

H24F/34DT/36DT/39DT................4-3

SECTION 5..........DIAGRAMS

H19F34DT EXPLODED VIEW........... 5-1

H20F34DT EXPLODED VIEW ........... 5-2

H24F34DT/36DT/39DT EXPLODED VIEW.. 5-3
H25F34DT/36DT/39DT EXPLODED VIEW. 5-4

H27F34DT/36DT/36S/39DT EXPLODED ... 5-5

H32F36DT EXPLODED VIEW.............5-6

SECTION 6........SCHEMATICS

POWER SUPPLY .................... 6-1

MAIN MICRO CIRCUIT .............. 6-2

DEFLECTION CIRCUIT .............. 6-3

VIDEO PROCESSOR CIRCUIT .......... 6-4

AUDIO PROCESSOR ................. 6-5

A/V SWITCH ...................... 6-6

MPI CARD CIRCUIT ................ 6-7

VIDEO OUTPUT .................... 6-8

EDGE CARD CIRCUIT ............... 6-9

AUDIO AMPLIFIER ................ 6-10

COMB FILTER .................... 6-11

BLOCK DIAGRAM .................. 6-12

PCB TOP LAYOUT ................. 6-13

PCB BOTTOM LAYOUT .............. 6-14

PCB TOP LAYOUT ................. 6-15

PCB BOTTOM LAYOUT .............. 6-16

TOC - 1 FCS-48SERIES -TOC

OVERVIEW

FX3400

SHIELD

1

INTRODUCTION

This manual covers the CL Chassis Commercial Sets. All suffix 36 models have stereo, surround, MPI, and super video
ports. The CL series chassis features nine ICs for all signal, sync, and sweep processing.

ICM2200 - Audio/video, sync and sweep drive processing.
IC6000 - Main microprocessor. It is tied directly to the keyboard and the infrared detector.
IC6001 - System memory .
IC2100 - V erti cal sweep amplifier.
IC2901 - Video switch.
ICX3612 - Power supply. This is a switching type supply powered by a bridge rectifier circuit. At turn on, voltages for

the vertical and video output circuit are derived from the sweep circuit.

IC1400 - Stereo audio processing.
IC2902 - Y/C switch.
IC2800 - Audio switch.

F-Line CL Chassis Model Information

MODEL SCR

FRONT

JACKS

H19F34DT 19 N/A 3 MONO SuperPort Slot, MPI Card 6710V00108A 0IMCRMI038A 3828VA0A30A

H20F34DT' 20 N/A 3 MONO SuperPort Slot, MPI Card 6710V00108 A 0IMCRMI03 8A 3828VA0A30A

H24/25F34DT 25 3 3 MONO SuperPort Slot, MPI Card 6710V00108A 0IMCRMI038A 3828VA0A30A

H24/25F39DT 25 3 3 MONO N/A 6710V00108A 0IMCRMI039A 3828VA0A30A

H27F34DT 27 3 3 MONO SuperPort Slot, MPI Card 6710V00108A 0IMCRMI038A 3828VA0A30A
H27F39DT 27 3 3 MONO N/A 6710V00108A 0IMCRMI039A 3828VA0A30D

H24/25F36DT 25 3 7 Stereo MTS SuperPort Slot, MPI Card 6710V00108A 0IMCRMI038A 3828VA0A30C

H27F36DT 27 3 7 Stereo MTS SuperPort Slot, MPI Card 6710V00108A 0IMCRMI038A 3828VA0A30C
H32F36DT 32 3 7 Stereo MTS SuperPort Slot, MPI Card 6710V00108A 0IMCRMI038A 3828VA0A30C

REAR

JACKS

AUDI O EXTR A FEAT URES REMOTE MI C RO OP G UIDE

MODULE LEVEL REPAIR ONLY

SR25-3828VD0171B 1-1 CL - OVERVIEW

OVERVIEW (continued)

INTERFACES

CAMPORT

Some models have video and right/left audio input jacks
at the front of the receiver. These jacks can be used to
view videotapes from a VCR or Camcorder. When the
video cable is plugged into the jack, the shorting
jumper J1 opens, placing a high at pin 10 of the IC6000
microprocessor. This switches the TV into the auxiliary
mode. As long as the cables are attached, the TV set
will be locked in auxiliary mode. Use of a remote control
or buttons on the front of the set will not permit
switching into tuner mode until the video cable is
disconnected.

SUPERPORT - MPI

Zenith Commercial Product receivers are now being
adapted to interact with other equipment. Prime
examples of this can be found in Lodging and Health
Care situations where the set is controlled from the
main office.

All this is made possible by the new technology that is
being built into these receivers. The SuperPort and
Multiple Protocol Interface (MPI) jack and associated
circuitry allow remote control of the set.

MULTIPLE PROTOCOL INTERFACE

Television functions and features are controlled by the
communication of commands and status information
through a SuperPort by the MPI interface.

EBC (EDGE BOARD CONNECTOR)

Allows easy access for removing/installing accessory
modules providing a rail mounted slide-through card.
These cards might contain one of the above features.

CONNECTION CENTER ON BACK OF TV

The connection on the back of the TV contains the
input and output interfaces.

SR25-3828VD0171B 1-2 CL - OVERVIEW

OVERVIEW (continued)

A

A

CONNECTION CENTER ON BACK OF TV

The connection center on the rear of the TV allows for
connection of the viewing source. The diagrams list the
use of each jack on the connection center.

1. ANTENNA/CABLE JACK

Use the jack for 75-ohm antenna-type signal
connections to the TV. Attach antenna, cable TV line,
or other video equipment to jack. The input cable may
come from an outdoor or master antenna, cable TV line,
cable decoder box, or the RF output from a VCR.

2. SUPERPORT LOCATION

Provides for easy installation of local service provider
accessory module without removing the cabinet back.
Module is housed inside the TV cabinet and receives
operating power and all necessary interface signals
through internal connections.

3. MPI (MULTIPLE PROTOCOL INTERFACE) JACK

Standard RJ11 jack that provides interface with in­room entertainment and video services. Also used with
installer’s programmer (page 1-5) for programming other
TVs in the system with the same features as the master
TV.

4. S-VIDEO IN AND OUT

These jacks are for input and output connections to
SUPER-VHS video equipment. Use the input jack for
viewing S-Video. Use the output jack to loop the S­Video signal to an additional TV or monitor. The right
and left audio jacks are used for stereo input or output
paired with the S-Video Signal.

5. VIDEO IN AND AUDIO IN

Use the Video and Audio In jacks for baseband video
and audio input signals from a VCR or other signal source.

6. MATRIX SPEAKER OUT

Use this jack for connection of an 8-ohm extension
speaker to get television sound at a remote location.
The speaker in the TV remains active, while a monaural
audio output is heard from the remote speaker.

7. EBC KNOB

For handling/removal of EBC (Edge Board Card).

1

ANTENNA

CABLE

6

MATRIX OUT

AUDIO IN

R

VIDEO IN

S-VIDEO IN

R AUDIO INLL

4

7

5

7

Super

Port

2 3

M. P. I.

7

Super

Port

NTENNA

CABLE

M. P. I.

2 3

1

7

6

MATRIX OUT

AUDIO IN

VIDEO IN

5

Used on HXXXX34DTUsed on HXXXX36DT models

1

NTENNA

CABLE

7

7

6

MATRIX OUT

VIDEO IN

AUDIO IN

5

Used on HXXXX39DT

SR25-3828VD0171B 1-3 CL - OVERVIEW

REMOTE CONTROL

Press to turn TV ON or OFF

POWER

Press to access closed captions.

CC

VOLUME

Press left to reduce or right to

increase volume level of TV.

NUMBERED BUTTON S

Press repeatedly to select

desired menu.

TIMER

Press to activate SLEEP TIMER.

MUTE

Press to turn off sound while
picture remains. Press again

C

C

to restore sound.

FLSHBK

Press to return to last TV
channel you were watching.

CHANNEL Up/Down

Press to select a TV channel by
going up/down through channels
programmed in the TV memory.

ENTER

Press to view Channel/Time or to
remove any on-screen display in

Display

menu or

TV mode.

ALARM

ALARM

Press to turn wake-up alarm
ON or OFF.

CH PREV

Displays on-screen, preprogrammed
directory of station and network
affiliations when in TV mode.

SC652Z

6710V00108A

SR25-3828VD0171B 1-4 CL - OVERVIEW

LT2000 & LT2002 CLONE PROGRAMMER

Statu s

Indicato r

MPI

Rese t

Color

battery OK

green

battery low

red

Blink pattern

slow

QUICKSET II PROGRAMMER

The Quick Set II programmer LT2000 & LT2002 allows
custom setup and programming information to be quickly
copied from a master TV into multiple television sets.
Once learned from the master, setup data is retained in
the LT2002 for future use and recall.

When using the LT2002 , operation will be easier if the
TV is connected to a good quality signal and is displaying
a stable picture . To oper ate the L T2002, use the indicated
keys on an installer’s remote or user’s remote, or the front
panel keys on the TV receiver.

SETUP

Begin the programming process by setting up a master
TV set using one of the installer’s remotes or an MBR
remote. Follow the instructions in the operating guide
for the specific TV model. Remember to set all features
that will be customized including the channel scan list,
channel labels, and installer menu setups.

Next connect the LT2002 to the master TV set using
the cable provided with the programmer. Connect the
cable between the MPI jack on the TV and the
programmer. The TV set automatically activates the
programmer.

Once connected, check the “Status Indicator” LED on
the programmer. If the indicator is green and flashing
(a double-blink “heartbeat” pattern), proceed to the
next step.

NOTE: A slowly flashing green light indicates there is

a problem with the communications between
TV and programmer. In this case, check for
damaged cable, poor contacts, or other
connection problems. If the status indicator is
red, the programmer batteries are low.

If communications are good, the sign-on screen will be
displayed on the TV screen as shown on the quick setup
instructions. If the intention is to set the TV’s or
programmer’s real-time clocks, and not the clone clock
or TV clock time settings, then press a key to proceed
to the main clone menu.

If a previously stored TV setup is in a particular clone
memory, it may be changed if desired by overwriting it
with a new setup. There is no need for a separated
memory clear operation. Setups stored in programmer
memory are nonvolatile and will be retained even after
a battery change.

LEARN FROM TV

Select “Learn From TV” then press ON/OFF, POWER, or
ENTER to begin learning process. Alternatively, use the
TV front panel CHANNEL UP or CHANNEL DOWN keys to
highlight choice. Press ON/OFF, POWER, or ENTER to
activate. The next screen will allow a choice of four
available memories to store this TV setup. Four different
TV setups can be stored in the LT2002.

Using the On-screen menu, choose a memory or choose
to return to the main selection menu. Now press ON/
OFF, POWER, or ENTER to activate your selection. The
next screen allows one last opportunity to check the
versions of TV and clone setups.

Press ON/OFF or POWER to activate the learning cycle,
or press any other keys to return to the selection menu
to make another choices.

Once a process has begun, the TV screen will display
“LEARNING IN PROGRESS”. Please wait for the process to
complete. When the TV screen displays “LEARNING
COMPLETED”, press any key to end the learning process
and return to the clone selection menu.

WRITE TO TV

Select “WRITE TO TV”, and then press ON/OFF, POWER,
or ENTER to begin teaching process. Alternatively, use
the TV front panel CHANNEL UP or DOWN keys to
highlight th e ch oi ce and then press ON/OFF, POWER, or
ENTER to activate. The next screen displays a choice of
the four available memories that can be copied to the
TV. Select the desired memory number, and press ON/
OFF, POWER, or ENTER to begin the teaching process.
Alternatively, use the TV front panel CHANNEL UP or
DOWN keys to highlight choice. Press ON/OFF, POWER,
or ENTER to begin.

SR25-3828VD0171B 1-5 CL - OVERVIEW

LT-2000 & 2002 CLONE PROGRAMMER

Using the on-screen menu, select a memory or return
to the main selection m enu. Then press ON/OFF , POWER,
or ENTER to activate the selection.

The next screen allows for one last opportunity to check
the versions of TV and clone setups. Press ON/OFF or
POWER to activate the teaching cycle, or any other key
to return to the selection menu to make other choices.

Once a process has begun, the TV screen will display
the “TEACHING IN PROGRESS” message. Please wait for
the process to complete. When the TV screen displays
“TEACHING COMPLETED”, press any key to end the
teaching process and return to the clone selection menu.

SET CLONE CLOCK FROM TV

To set the real-time clock in the LT2002, select “SET
CLONE FROM TV” and then press ON/OFF , POWER, or ENTER
to copy current TV time to th e clone clock. Alternatively ,
use the TV front panel CHANNEL UP or CHANNEL DOWN
keys to highligh t the choi ce. Then pr ess ON/OFF, POWER,
or ENTER to activate.

This process will return the L T2002 to the si gn-on screen
to display the clone and TV clock settings. Press a key
to go to the clone selection menu and perform other
functions, or simply disconnect if the time setting was
the last task.

SET TV CLOCK FROM CLONE

To set the real time clock in the, select “SET TV CLOCK
FROM CLONE” and then press ON/OFF, POWER, or ENTER
to copy current LT2002 time to the TV clock.
Alternatively, use the TV front panel CHANNEL UP or
CHANNEL DOWN keys to highlight the choice. Then press
ON/OFF, POWER, or ENTER to activate.

This process will return the L T2002 to the si gn-on screen
to display the clone and TV clock settings. Press a key
to go to the clone selection menu and perform other
functions, or simply disconnect if the time setting was
the last task.

DISPLAY TV SETUP

Select “ DISPLAY TV SETUP”, and then press ON/OFF,
POWER, or ENTER to begin the teaching process.
Alternatively, use the TV front panel CHANNEL UP or
CHANNEL DOWN keys to highlight your choice. Then press
ON/OFF , POWER, or ENTER.

The TV screen will display the items in the service menu
setups. Use this function to quickly check the TV for

correct setup. Press any key to clear display and return
to the clone selection menu.

DISPLAY CLONE SETUP

Select “DISPLAY CLONE SETUP” and then press ON/OFF,
POWER, or ENTER to begin the teaching process.
Alternatively, use the TV front panel CHANNEL UP or
CHANNEL DOWN keys to highlight the choice, then press
ON/OFF, POWER, or ENTER to begin.

The TV screen will display the memory selection menu.
Select the desir ed memory number, and th en press ON/
OFF, POWER, or ENTER to display the contents of the
selected memory. Alternatively, use the TV’s CHANNEL
UP or CHANNEL DOWN keys to highlight the choice, then
press ON/OFF, POWER, or ENTER to begin.

The TV screen will display items in the factory menu
setup. Use this function to quickly check contents of a
particular clone memory for correct setup. Press any
key to clear the display and return to the clone selection
menu.

OPERATION NOTES

Disconnect the L T2002 from th e TV set when the d esired
task has been completed. Disconnecting the clone
automatically switches it off. The real time clock
continues to run when the main circuits are switched
off.

After replacing exhausted batteries, or if the programmer
behaves strangely after a static shock, use a paper clip
or similar instrument inserted through the small hole
marked “RESET” to activate the internal reset switch
and restore normal operation. After reset, check the
real-time clock setting. It may be necessary to reset
the clock from a TV programmed to the correct time.

The specific microprocessor used in any TV set may be
determined by activating the service menu. The
microprocessor part number appears at the top of the
screen with the service menu is activated. Processors
before the 221-01006 has limited screen display
capability . Th ey cannot display en tir e scr een s as sh own
in the quick setup instructions accompanying the
LT2002 programmer. Use the printed menu illustration s
on the quick setup sheet as an aid in making
programming choices.

SR25-3828VD0171B 1-6 CL - OVERVIEW

USER MENUS

SETUP MENU

Press the MENU key on the Installer’s remote repeatedly
so that the SETUP MENU appears on the screen.

Select any other channels to be changed, and when fin­ished, press ENTER to close the menu.

CH LABELS (CHANNEL LABELS)

Press the MENU key on the remote so that the SETUP
MENU reappears. Use the Up Arrow to choose the CH
LABELS option. Pressing either the Right/Left arrow re-

SETUP MENU

peatedly, pick the label you want from the list of avail­able selections shown in the chart. Select other chan-

AUTO PROGRAM TO PROGRAM

ADD/DEL/BLNK

CH. LABELS

CLOCK SET

TIMER

CAPTIONS
LANGUAGE

nels, and when you are finished, press ENTER to remove
the menu.

You also have the option of creating 20 programmable
labels having five digits each.

In order to edit a programmable channel label, it must
be selected or already present in the current channel,
pressing Volume Up/Down keys any digit can be selected
and edited, with the Channel Up/Down keys the blink­ing character can be edited, pressing the Volume Up/
Down key again can select another character and also be

AUTO PROGRAM

edited. The channel label will be stored pressing Volume
Up/Down keys until there is not any digit blinking.

Using the Up/Down arrows on the remote control, high­light AUTO PROGRAM on the screen. Then press a RIGHT/
LEFT Adjust arrow button to reach the AUTO PROGRAM
screen. Using the Up/Down arrows, choose either CABLE
TV or OFF-AIR ANTENNA. Press the RIGHT or LEFT ADJUST ar­rows to begin the Channel Search. The receiver searches
for available channels and stores them in memory for
user access.

ADD/DEL/BLNK

Press the Up Arrow repeatedly to highlight the ADD/
DEL/BLNK option. Use the remote to select a channel.
ADD/DELETE allows tailoring of the channel scan to elimi-

AUTO PROGRAM

ADD/DEL/BLNK

CH. LABEL CH 23 | LAB 1

CLOCK SET

TIMER

CAPTIONS
LANGUAGE

nate unwanted channels and add desired channels that
were not stored during Auto Programming.

Use the number keypad and ENTER to add a deleted chan­nel. Using the Right/Left arrows, pick whether a chan­nel is Added, Deleted, or Blank.

When BLNK is selected, screen will be black while audio
continues.

CHANNEL LABELS

A&E CMTV ESPN HSE NOS TBN VC
ABC CNBC ESP2 HSN PBS TELE VCR
ACTS CNN ET IC PLAY TLC VH-1
ADC COM EWTN INSP PTL TMC VISN
AMC CSPN FAM JCN QVC TNN VJN
BCC CSP2 FNN LIFE RDS TNT WB
BET CTN FOX MAX REQ TRAV WGN
BRAV CTV F&V ME/U SC TSN WTBS
CA DIS FX MMT SCFI TVA WWOR
CBC DISC GALA MTV SHOW TWC YTV
CBN E! HBO NBC SIN UPN - - - ­CBS ENC HN NICK TBS USA None

Note:
Selecting the none option means the channel will not have a label.

Selecting “----” label option means the channel will not be displayed on the channel/time/audio signal display.

SETUP MENU

PRESS VOL UP/DN TO SELECT CHAR

SR25-3828VD0171B 1-7 CL - MENUS

USER MENUS (continued)

CLOCK SET

Press MENU repeatedly to show the Setup menu. Use the
Up/Down Arrows to highlight Clock Set.
Set the current time; use the Number keypad to enter
the hours, then minutes. For example, enter 06, then
30, to set 6:30 on the clock. Use the TIMER key to specify
AM or PM. Press ENTER to strart the clock and return to
TV viewing.

TIMER

On the optional installer’s remote, press MENU repeat­edly until the Setup menu appears.

Press SELECT repeatedly to highlight the Timer option,
press the right arrow.

SETUP MENU

AUTO PROGRAM

ADD/DEL/BLNK

CH. LABELS

CLOCK SET

TIMER TO SET TIMER

CAPTIONS
LANGUAGE

·On time

Sets a time that the TV will turn itself On each day.

·Off Time

Sets a time that the TV will turn itself Off each day.

·On/Off Timer

Enables or disables the On/Off Timer functions. (The On/
Off Timer can be disabled but the setting will be re­tained).

Press ENTER to remove the menu and return to TV view­ing.

Note: The clock must be set before for the Timers to

function.

The Off Timer can be used to turn the TV Off at the

present time.

No On Timer setting is required to use the Off Timer

feature.

CAPTIONS

Caption is a feature that allows the TV to receive closed
captions and/or text options when made available by
the broadcaster.

There are two operating modes for caption: quick/mute
or standard: If quick mute is selected, pressing the cc
key switches the current cc selection On/Off.

Use SELECT to choose an option. Use the number keypad
and/or the Left/Right ADJ arrows to enter the times.
Use the timer key to set AM/PM.

Your options are:

TIMER

ON TIME 9:00 AM

OFF TIME 7:00 PM

ON/OFF TIMER ON

CAPTIONS SETUP

OPER. MODE

SEL. TYPE

CC

CAPTION LOCK

PRESS SELECT TO CHOOSE
PRESS ADJ

STANDARD

TO CHANGE

Use the Right/Left arrows to choose any of the follow­ing options: CAPTION 1, CAPTION 2, CAPTION 3, CAPTION
4, TEXT 1, TEXT 2, TEXT 3,TEXT 4 or OFF. Press ENTER to
close the menu.

LANGUAGE

SR25-3828VD0171B 1-8 CL - MENUS

USER MENUS (continued)

In the Language menu, use the Right/Left arrow to
choose one of the following options: English, Spanish,
or French. Press ENTER to return to TV viewing.

AUDIO MENU

Press MENU repeatedly on the remote control until the
AUDIO MENU appears.

AUDIO MENU

BASS

TREBLE

BALANCE

AUDIO MODE

FRONT SURR

SOUNDRITE

AUDIO PREF

Using the Up Arrow on the remote control, highlight
the setting you want to change. Choose from:

• BASS: Adjusts the amount of Bass (low frequency
level) in the sound. It has 15 steps (0 to 14)

• TREBLE: Adjusts the amount of Treble (High
frequency Level) in the sound. It has 15 steps (0
to 14)

STEREO

OFF

OFF

CUSTOM

Note: Audio Menu is only available for 36 Series.

VIDEO MENU

Press MENU repeatedly until the Video Menu appears.
Your options are:

• CONTRAST: Adjusts the contrast of the picture
(difference between white and black). It has 64
steps (0 to 63).

• BRIGHTNESS: Adjusts the brightness of the
picture (amount of white). It has 64 steps (0 to

63).

• COLOR: Adjusts the intensity of the color. It has
64 steps (0 to 63).

• TINT: Adjusts the tint of the color picture
(balances between amounts of red and green in
the TV picture). It has 64 steps (0 to 63).

• SHARPNESS: Raises or lowers the definition of
the TV picture. The lower the level, the softer
the images will appear (adjusts the sharpness of
the picture). It has 64 steps (0 to 63).

• PICTURE PREF: Has two settings: PRESET and
CUSTOM. In the Custom mode the brightness,
contrast, color and tint can be set to a users
particular liking. The preset settings brings up
the factory setting for these controls. Preset is
selected automatically after an AC power
interruption.

• BALANCE: Adjusts the balance of sound between
the left and right speakers. It has 29 steps (0 to

28).

• AUDIO MODE: Selects between Mono, Stereo and
2nd Audio/SAP. If 2nd Audio/SAP is selected, but
the current channel does not support SAP either
Stereo or Mono will be heard.

• FRONT SURR: The Front Surround gives spatial
effect to the surround material.

CONTRAST

BRIGHTNESS

COLOR

TINT

SHARPNESS

PICTURE PREF PRESET

VIDEO MENU

• SOUNDRITE: Used to obtain a uniform volume
level, particularly while changing channels.

• AUDIO PREF: This feature allows the customer to
maintain two separate audio settings by selecting
“custom” or “preset”. The Factory gets the
“Preset” setting and th e customer sets “ custom”.

Press a RIGHT/LEFT ADJ arrow to adjust or change the op-

Use the Up/Down arrows on the remote control to
highlight the setting you want to change. Press Right/
Left Arrow to adjust or change the option you have
selected.

tion you have selected. Press ENTER to return to TV view­ing, or press the Up Arrow to adjust another option.

SR25-3828VD0171B 1-9 CL - MENUS

USER MENUS (continued)

Press ENTER to return to TV viewing, or press the Up /
Down Arrows to change other options in the video menu.

PARENTAL CONTROL

This optional feature can be used to prevent (block)
unwanted programming from appearing on your TV.

PARENTAL CONTROL offers the user a wide variety of
options and settings that restrict or block programming
that can appear on the TV. PARENTAL CONTROL allows
users the capability of defining which program ratings
they consider acceptable to younger or more sensitive
viewers.

PARENTAL CONTROL can be preset and turned on or off
by a user who specifies the 4 number password. The
number of hours blocked must also be specified.

General audience and children viewer blocks can both
be programm ed into the TV’s memory. Viewer ratings are
specified for both the TV industry and the motion pic­ture industry; both rating systems can be used. The rat­ings are based mainly on children’s ages.

PARENTAL CONTROL

AUX SOURCES

MPAA RATING

AGE BLOCK

CONTENT BLK

SET HOURS

SET PASSWORD

LOCK ON OFF

OVERVIEW

To en sure complete coverag e for all TV program s (movies
and regular TV shows), choose ratings from the Motion
Picture Association of America (MPAA) Rating System
chart and the TV Parental Guidelines Rating System chart
(both shown in next page). Use the AGE BLOCK option
for General Audiences and for Children. You can also
add additional restrictions from the CONTENT BLOCK
menu.

Things to Consider before Setting Up Parental Control:
Determine which ratings you consider acceptable for
viewing. (For example, if you choose TV-PG, all of the
more restrictive ratings will be blocked automatically:
the viewer will not be able to see TV-PG, TV-14, or
TV-MA rated programming.)

Select whether auxiliary video sources will be blocked

TO BLOCK

in the AUX SOURCES block option. (Blocks signals from
VCRs, DVD players, etc. connected to the TV Audio/
Video input jacks). You could also leave AUX SOURCES
unblocked, and then choose allowable ratings.

In the CONTENT BLK option, you can block program
Content based on individual parameters such as Strong
Dialog, Bad Language, Sex Scenes, Violence Scenes, or
Fantasy Violence Scenes.

You can set PARENTAL CONTROL to be active in the SET
HOURS option for up to 12 hours. Use the number keys
on the remote to select a secret password in the SET
PASSWORD option.

Don’t forget the password, as it is the only way you can
access the PARENTAL CONTROL menu and change ratin g
selections or turn PARENTAL CONTROL off.

If you do not want PARENTAL CONTROL to be active all
the time, you can turn it on or off with the LOCK ON/
OFF option.

Notes:

You can set different PARENTAL CONTROL viewing re-

strictions for general audiences and for children - ­both can be active at the same time.

Simply specifying one content block such as Sex Scenes,

will not automatically block another type of content
in the programs from appearing.



Even if you choose to leave the AUX INPUTS unblocked,

the ratings you specify will automatically restrict the
programming that appears from the video sources.



You cannot disable PARENTAL CONTROL by disconnecting

the TV from power. Block hours will automatically reset
to the original block time setting specified if power
is disconnected.

To reset the password, use the installer’s remote

control to deactivate the V-Chip in the Installer’s menu
(#21). Exit out of the Installer’s Menu after
deactivating the Parental Control. Then enter back in
and reactivate the V-Chip.

With the PARENTAL CONTROL menu on-screen, use the
Up Arrow to choose an option, such as CONTENT BLOCK.
Use the Left/Right arrow to show the CONTENT BLOCK
menu, to adjust or set the rating for an option.

To block sex scenes, for example, use the “TV-PG and
above” setting. To block dialog, use LEFT/RIGHT ADJ
arrows to select among UNBLOCKED, TV-PG and above,
or TV-14. (See the Ratings Charts for rating meanings.)

After you have selected and adjusted the PARENTAL
CONTROL menu options to your preferences:

- Set the number of hours Parental Control will be on.

- Set a 4 number password.

- Set the Lock On/Off option to either on or off.

SR25-3828VD0171B 1-10 CL - MENUS

USER MENUS (continued)

ON-SCREEN DISPLAYS

CHANNEL PREVIEW

CHANNEL/TIME/AUDIO DISPLAY

NBC

Press ENTER. Shows currently selected channel or source,
current time if the clock has been set, and incoming
audio signal.

CH PREVIEW MENU

Press SURF. Displays list of the available TV Channels,
Guest Parental Control menu (if active) and Video
Channel access.

Press CHANNEL UP/DOWN to select a channel, and then
ENTER to go to that channel. Pressing CC will activate

2

NONE

3

PBS

4

NONE

5

CBS

6

ABC

7

NONE

8

NONE

9

10

NONE

CH TO SELECT, ENTER TO QUIT

CC FOR PARENTAL CONTROL

the Parental Control menu.

MOTION PICTURE ASSOCIATION OF AMERICA (MPAA) RATING SYSTEM

G General Audiences Content not offensive to most viewers.
PG Parental Guidance Content is such that parents may not want their children to view the program.

Suggested

PG-13 Parental Guidance Program is inappropriate for preteens, with a greater degree of offensive

Suggested material than a PG-rated program.

R Restricted viewing Not for children under age 17. Strong elements of sex and/or violence.
NC-17 Restricted Viewing Not for children under age 17 under any circumstances. Strong sexual content.
X Hard Core Films Same as NC-17 rating.

Note: Zenith Electronics Corporation is not liable for any program content that appears when using this rating system;

as always, user discretion is advised.

TV PARENTAL GUIDELINE RATING SYSTEM

G General Audiences Content not offensive to most viewers.
TV-G General Audience Considered suitable for all audiences; children may watch unattended.
TV-PG Parental Guidance Unsuitable for younger children, may contain: Suggestive Dialog, Bad Lan-

Suggested guage, Sex, and Violence Scenes.

TV-14 Parents Strongly Unsuitable for children under 14, may contain: Strong Dialog, Bad Language,

Cauti on e d Sex, and Violence Scenes.

TV-MA Mature Audience Only Adults only, may contain: Strong Dialog, Bad Language, Sex, and Violence Scenes.

CHILDREN’S CLASSIFICATIONS

TV-Y Children Considered suitable for all children under 7 years old.
TV-Y7 Children 7 and over Considered suitable for children over 7, may contain Fantasy Violence Scenes.

SR25-3828VD0171B 1-11 CL - MENUS

USER MENUS (continued)

CAPTIONS DISPLAY

Pressing CC in Quick Mode shows the current Caption
selection, or Caption Off:

CC

1

CAPTION IS ON

In the Standard Mode, it displays all the Captions and
Text mode selections as below:

CAPTION 1
CAPTION 2
CAPTION 3
CAPTION 4

TEXT 1
TEXT 2
TEXT 3
TEXT 4

SOURCE MENU

Scrolling the menus using the Menu key can access the
Source Menu.

SOURCE MENU

ANTENNA/ CABLE

CAMPORT

S-VIDEO

AUX VIDEO

PRESS TO CHANGE

PRESS ENTER OR < > KEYS TO ACTIVATE

Use the Up/Down Arrows to navigate among Source
options and use Select, Enter or Right/Left Arrows to
enter a desired source.

The Camport & S-Video sources are not displayed in the
Source Menu when they are disabled from Installer
Options 34-I or 37-I or the autosenses are enabled
options 40-I or 43-I.

Note: Source Menu is not available in Series 39.

SR25-3828VD0171B 1-12 CL - MENUS

SECTION 2

MODEL SERIES 34/36/39 INSTALLERS MENU

INSTALLERS MENU ADJUSTMENTS

Note: There are two microcontrollers available for the

39 series: OIMCRM1039A and OIMCRM1039B.

To access the Installer's Menu, press and hold the MENU
key until the User Menu display disappears, then press
9876, and then ENTER to access the Installer's Menu.
Note that the "9876" sequence could be changed with
the installers menu option number zero (0-I INSTALLER
SEQ) to 4321, 1478 or 3698 respectively.

To access th e Factory Menu , press and h old the MENU k ey
until the User Menu display disappears, then press 1937,
and then ENTER.

The black bar near the top of the screen indicates the
part number of the micro installed on the set, the next
number to the right is the software version running and
the last number is the Font Version Used in the TV set.
The black square near the bottom of the screen indicates
the Serial number of the TV Set (SN), then the User Pro­grammable Number (UPN) and at the lowest part indi­cates the date the module went through the factory and
the Test Equipment status (TE).

0IMCRMI039B 1.83 01

Microcontroller

part number

0-I

SN: 0321-43390001
UPN: 067-057-000-001

05/03/03 TE = 10110000

Program
Revision

INSTALLER SEQ.

Font

Revision

INSTALLERS MENU OPTIONS
0-I INSTALLER SEQ: Range is 0-3. Determines the Se-

quence used to access Installers Menu.

Inst. Seq. Sequence

0 Me nu ( Until CH-Time appe a r s) , 9 , 8, 7, 6, Enter.

1 Me nu ( Until CH-Time appe a r s) , 4 , 3, 2, 1, Enter.

2 Me nu ( Until CH-Time appe a r s) , 1 , 4, 7, 8, Enter.

3 Me nu ( Until CH-Time appe a r s) , 3 , 6, 9, 8, Enter.

1-I POWER MANAGE (Power Management): Determines
hours of no activity before automatic shutoff. The POWER
MANAGE function is for saving energy. When set to 0,
Power Manage is OFF. Settings range from 0 - 7, with 1 ­7 representing the hours that the TV will remain on, un­less there has been activity from either the control panel
or remote control.

2-I AC ON: Allows the TV to turn ON just by applying AC
power. Pressing the ON button is not necessary. This is
desirable when the TV is plugged into a cable box or a
power outlet controlled by a wall switch. Use ADJUST to
select 0 or 1, where 0 is the default is OFF, and 1 is ON.

Note: When set to 1 (ON), the TV does not respond to

ON/OFF commands from either the remote or the
control panel, and the SLEEP TIMER is also
nonfunctional.

3-I BAND/AFC: There are eight positions as shown below
and is used to set the band of the tuning process:

0 is Broad c ast fix ed 4 is B ro ad cas t afc

0IMCRMI039 1.66 01

0IMCRMI039A 1.66 01

Program

Microcontroller

Microcontroller

part number

part number

0-I

0-I

SN: 0321-43390003

SN: 0321-43390003
UPN: 069-059-000-001

UPN: 069-059-000-001

06/05/03 TE = 10110000

06/05/03 TE = 10110000

Program
Revision

Revision

INSTALLER SEQ.

INSTALLER SEQ.

Font

Font

Revision

Revision

Channels are accessed faster when fixed modes are used.
The AFC (search modes) should only be used when some
channels are not on nominal frequencies. If some chan­nels were not found by the "AUTO PROGRAM" process,
select the appropriate AFC setting here and add the chan-

1 is CA TV afc 5 is CA TV fixed

2 is HRC afc 6 is HRC fixed

3 is IC C a fc 7 is ICC fix e d

nels using the ADD/DEL option in the Setup Menu.

Use the SELECT UP/DOWN keys to toggle through all of
the adjustments. Use ADJUST to make a change to the
selected item.

SR25-3828VD0171B 2-1 CL - INSTALLERS MENU

Note: The "BAND" is automatically set by "AUTO

PROGRAM".

MODEL SERIES 34/36/39 INSTALLERS MENU (continued)

4-I STRT CHANNEL: Determines the channel that is se-

lected automatically each time the TV is turned on. Range
is 0-255. 0 is the Aux position and 255 is off. Use AD­JUST to change the channel number. This feature is use­ful for an in-house information channel, since the TV
would always tune the selected channel when the TV turns
on. When inactive the TV retains the channel when the
set was last used.

5-I CHAN LOCK: Defeats tuning operations. Changing
channels with the Channel Up/Down or keypad numbers
is impossible. This feature is ideal if a cable box (or simi­lar) that must be always on the same channel or source is
used with the TV set. Range is 0-1. 0 is off and 1 is on.
In combination with the START CHANNEL, it can lock-on
a particular channel.

Note: When channel lock is active AUTO PROGRAM and

CH. ADD/DEL in the SETUP MENU are not active.

6-I GHOST CH: Either with or without signal present, the
channel number will stay on screen at all times, unless
captions are on. The number moves slightly to prevent
damage to the screen. Range is from 0 to 1. The default
is "0" or OFF.

Note: When captions are on, the "ghost channel" is not

displayed.

7-I START VOLUME: This function allows the In staller to
determine the initial volume level setting when the TV is
turned ON. This feature is useful for an in-house informa­tion channel, since the TV would always select the same
volume when it is turned on. The range of values are 0 ­63, 255. If 255 is set, the volume level is retained when
the set was last used.

8-I MIN VOLUME: This function determines the adjust­ment of minimum volume level allowable with the keys
VOLUME Up/Down. In this way, for example, someone
cannot set the volume too low to h ear. The rang e is fr om
0 to 63. When this item is set to 0, the sound level can
be adjusted down to zero. Change values with ADJUST
keys. The factory default is 0. It may be best to set the
same value on every TV.

Note: The minimum volume level cannot have a value

setting higher than in the MAX VOLUME level
(described below).

9-I MAX VOLUME: This function determines the adjust­ment of maximum volume level allowable with the keys

VOLUME Up/Down. In this way, for example, someone
cannot set the volume level high enough to disturb oth­ers. The range is from 0 to 63. When this item is set to
63, the user has full adjustment capability. Change val­ues with ADJUST keys. The factory default is 63. It may
be best to set the same value on every TV.

Note: The maximum volume level cannot have a value

setting lower than the MIN VOLUME level
(described above).

10-I MUTE DISABLE: Adjust Disable sound mute key op­eration. Range is 0-1. Set to 1, sound cannot be muted.
Set to 0, sound can be muted.

11-I KEY DEFEAT: Wh en set to 1 it preven ts th e end user
from accessing screen menus with the front panel MENU,
SELECT and adjust do not function. When set to cero,
those keys are functional. The menus can always be ac­cessed with Menu on the remote control

12-I IR BANKS EN: For direct access to a particular Chan­nel Bank . When enabled installer can access a channel
bank by inputting the IR code for the bank

13-I SCAN MODE: Range is 0-1. This setting allows to
have two characteristics when using the channel Up/
Down keys to navigate through the favorite channel list.

Scan Mode Characteristics

0 TV, VCR3, VCR4, AUX
1 TV, VCR3, VCR4, AUX, ON/OFF

14-I STARTCH IN SM: When set to 1, installs TV on/off
event bellow the start channel at turn on

15-I SLEEP TIMER: When set to 1, the SLEEP TIMER fea­ture may be used (but no message is displayed prior to
turn-off). When set to 0, the sleep timer is not available.

16-I EN. TIMER: Set to 1, timer function is available to
user. Set to 0 to disable Timer functions. (Clock must be
set in order to use Timers.)

17-I ALARM: Gives you the option of making the alarm
function available to the user. Set to 1, alarm function is
available to user . Set to 0 to disable the Alarm function.
Note: Clock must be set in order to set the Alarm.

18-I NOT USED

19-I NOT USED

SR25-3828VD0171B 2-2 CL - INSTALLERS MENU

MODEL SERIES 34/36/39 INSTALLERS MENU (continued)

20-I FEATURE LEVEL: Default set to ZEN 1 for Zenith IR

remote cont r ol operation. Set O, P LBL for Zenith Private
Label IR remote control operation. Warning: Do not set
to "0" or remote will not control TV.

21-I V-CHIP: Set to 1 to activate V-Chip (Parental Con­trol), have it available for the user to filter, control or
restrict programming content. Set to 0 to turn V-Chip
feature off, not available to user; no programming re­strictions can be set.

22-I MAX BLK HRS: Set from 0 to 99 for the maximum V­Chip (Parental Control) block hours. Default is 12 block­ing hours.

23-I CAPTION LOCK: Zero is off, 1 is on. Set to 1 to
restore previous caption On/Off state after TV turns off.
When set to 0, captions are always off, when TV is ini­tially turned on.

24-I TEXT MODE: Turns text mode on or off in the users
menu. Range is 0-1. Zero is off and one is on. In on
mode, user can call up text mode. Set to 0 unless text is
being used.

25-I FUNCTION PRE: (Function Menu Channel Preview)
Range is 0-3. Zero is off and one is on. Set to 0 to
suppress channel preview screen in the function menu
with some pay per view systems.

0 = Channel Preview disabled in function menu, caption lock
enabled.

1 = Channel Preview enabled in function menu, caption lock
enabled.

2 = Channel Preview disabled in function menu, caption lock
enabled.

3 = Channel Preview enabled in function menu, caption lock
disabled.

Note: Item 25-I. is not used in Series 39.

26-I NOT USED

27-I NOT USED
28-I CH OVER RIDE: Zero is off and one is on. In on

mode , the TV works norm ally . This item is g enerally set to
off so it can be controlled with entertainment unit. In
off mode, Auto Program and Channel Add/Delete do not
function. Changing to channels not added in the favor­ites list with the keypad numbers is impossible.

29-I OLD OCV: (On Command Video TM) Zero is off and
one is on. Set to one for operation with "Spectramate"
systems from On Command Corporation.

30-I ACK MASK: Ignores the acknowledge flag that is
sent from the local servi ce pr ovid er. This is used with the
"Spectramate" (SN: 0583358) cable box to mask the ac­knowledge in MPI communications.

M.P.I. Communication Parameter. Leave at default set­ting unless changed by Pay-Per-View provider.

31-I POLL RATE: Used to adjust the polling rate in the
MPI communications. Range is 20-168. M.P.I. Communi­cation Par ameter . Leave at d efault setting unless chang ed
by Pay-Per-View provider.

32-I TIMING PULSE: Used to vary the standard width of
the pulses in the MPI Communications.

Range is 186 - 227.
M.P.I. Communication Parameter. Leave at default set-

ting unless changed by Pay-Per-View provider.

33-I NOT USED
34-I CAMPORT EN: Set to 1 to enable front Video

(Camport) input. Set to 0 to disable front Video input.
Enables Camport Source. Range is 0-1. Zero is disabled
and 1 is enabled.

35-I NOT USED.

36-I NOT USED
37-I REAR Y/C EN: Set to 1 to enable rear Y/C Video

input. Set to 0 to disable rear Y/C Video input.

38-I NOT USED.

39-I NOT USED
40-I AUTO CAMPORT: Set to 1 to automatically switch

to camport when equipment is connected to front au­dio/video input.

Set to 0 to disable front audio/video automatic source
selection.

41-I NOT USED

42-I NOT USED
43-I AUTO REAR Y/C: Set to 1 to automatically switch

viewing source to Rear Y/C input when equipment is con­nected. Set to 0 to disable Rear Y/C automatic source
selection.

44-I NOT USED

SR25-3828VD0171B 2-3 CL - INSTALLERS MENU

MODEL SERIES 34/36/39 INSTALLERS MENU (continued)

45-I NOT USED
46-I STRT AUX SRCE: Determines the Aux that is selected

automatically each time the TV goes to the aux channel.
There are 3 possible values depending on the Enables
switches. 0 is the Camport position and 255 is off (See
the table). Use ADJUST to change the Auxiliary number.

0 Camport 255 Disabled

1 Rear Aux

2 Rear Y/C

47-I AUX STATUS: Set to 1 for MPI AUX source to be
reported as a channel number 13X or 9X, if the "old OCV"
flag is set to 1; Set to 0 to disable AUX identification
change and so the answer is always channel 0.

48-I DIS. SETUP M.: Disable/Enable displaying Setup
Menu. Zero is enable and 1 is disable menu.

49-I DIS. AUDIO M.: Disable/Enable displaying Audio
Menu. Zero is enable and 1 is disable menu.

Note: Items 29-I, 30-I, 31-I, 32-I, 34-I, 37-I, 43-I, 46-I,

47-I & 49-I are NOT USED in Series 39.

50-I DIS. VIDEO M.: Disable/Enable displaying Video
Menu. Zero is enable and 1 is disable menu.

51-I DIS. VCHIP M.: Disable/Enable displaying Parental
Menu. Zero is enable and 1 is disable menu.

52-I DIS. SOURCE M.: Disable/Enable displaying Sources
Menu. Zero is enable and 1 is disable menu.

53-I DIS. CH-TIME: Disable/Enable displaying CH-TIME.
Zero is enable and 1 is disable CH-TIME.

54-I EN. SET. COL.: Disable/Enable use custom colors f or
Setup Menu. Zero is disable and 1 is enable.

55-I FOR. SETUP M.: Select between (0 to7) to set fore­ground color for Setup Menu. See Table 1.

56-I BCK. SETUP M.: Select between (0 to7) to set the
background color for Setup Menu. See Table 1.

57-I EN. AUD. COL.: Disable/Enable use custom colors
for Audio Menu. Zero is disable and 1 is enable.

58-I FOR. AUDIO M.: Select between (0 to7) to set fore­ground color for Audio Menu. See Table 1.

60-I EN. VID. COL.: Disable/Enable use custom colors for
Video Menu. Zero is disable and 1 is enable.

61-I FOR. VIDEO M.: Select between (0 to7) to set fore­ground color for Video Menu. See Table 1.

62-I BCK. VIDEO M.: Select between (0 to7) to set the
background color for Video Menu. See Table 1 .

63-I EN. PTL. COL.: Disable/Enable use custom colors
for Parental Menu. Zero is disable and 1 is enable.

64-I FOR. PTL. M.: Select between (0 to7) to set fore­ground color of Parental Menu. See Table 1.

65-I BCK. PTL. M.: Select between (0 to7) to set the
background color of Parental Menu. See Table 1.

66-I EN. SRC. COL.: Disable/Enable use custom colors of
Sources Menu. Zero is disable and 1 is enable.

67-I FOR. SRC. M.: Select between (0 to7) to set the
foreground color of the Sources Menu. See Table 1.

68-I BCK. SRC. M.: Select between (0 to7) to set the
background color of the Sources Menu. See Table 1.

69-I EN. CH-T COL.: Disable/Enable use custom colors
for CH-TIME display. Zero is disable and 1 is enable.

Note: If foreground and background color are the same,

menu background is transparent.

70-I FOR. CH-T COL: Select between (0 to7) to set fore­ground CH-TIME display color. See Table 1.

71-I BCK. CH-T COL: Select between (0 to7) to set the
background color for CH-TIME display. See Table 1.

0.- Black 4.- Blue

1.- Red 5.- Magenta

2.- Green 6.-Cyan

3.- Yellow 7.- White

Table 1

72-I NOT USED
73-I CH NOT AVBLE: When set to 1 and channel override

is set to 0, "NOT AVAILABLE" message is displayed when
direct accessing a channel not in the favorite channel
list. Range is 0-1. Zero is disable and 1 is enable.

59-I BCK. AUDIO M.: Select between (0 to7) to set the
background color for Audio Menu. See Table 1.

SR25-3828VD0171B 2-4 CL - INSTALLERS MENU

MODEL SERIES 34/36/39 INSTALLERS MENU (continued)

74-I CH-TIME SIZE: When set to 1 and transparent back-

ground is selected for Channel-Time display, (foreground
color = background color and custom color enabled) a
large channel number is displayed instead of the normal
Channel-Time display, however just the Ch number is dis­played. Range is 0-1. Zero is disable and 1 is enable.

75-I NOT USED
76-I DEFEAT XDS: If active disables the XDS displaying,

although the decoding is still available for V-Chip. Range
is 0-1. Zero is disable and 1 is enable.

Note: Items 52-I, 57-I, 58-I, 59-I, 66-I, 67-I & 68-I are

NOT USED in Series 39.

77-I NOT USED
78-I UPN MSB: User definable number, most significant

byte readable by MPI command. This number is displayed
at the lower part of the Installers / Factory Menu. Range
is 0-255.

79-I UPN MSB-1: User definable number, most signifi­cant byte-1 readable by MPI command. This number is
displayed at the lower part of the Installers / Factory
Menu. Range is 0-255.

84-I PERMANENT BLK: Enables the parental control per­manent blocking time. Range is 0-1. Zero is disable and
1 is enable. When this feature is active the blocking time
can be selected between: [permanent block, 1 hour,…,
MAX BLK HRS (Item 22-1)].

85-I A. MUTE TIME: This Item contains the amount of
time that the audio will be muted only when changing
between auxiliary sources. Range is 0 to 254 and the
default value is 35.

86-I V. MUTE TIME: This Item contains the amount of
time that the video will be muted only when changing
between auxiliary sources. Range is 0 to 254 and the
default value is 40.

80-I UPN MSB-2: User definable number, most signifi­cant byte-2 readable by MPI command. This number is
displayed at the lower part of the Installers / Factory
Menu. Range is 0-255.

81-I UPN LSB: User definable number, least significant
byte readable by MPI command. This number is displayed
at the lower part of the Installers / Factory Menu. Range
is 0-255.

82-I CHKSM ERROR: Enables the checksum validation when
every MPI command is executed. Range is 0-1. Zero is
disabled and 1 is enabled.

M.P.I. Communication Parameter. Leave at default set­ting unless changed by Pay-Per-View provider.

83-I HANDSHK TIME: Changes the hand shaking time of
MPI communications in steps of 25 milliseconds. Range
is 0 to 5. 0 is disable.

M.P.I. Communication Parameter. Leave at default set­ting unless changed by Pay-Per-View provider.

SR25-3828VD0171B 2-5 CL - INSTALLERS MENU

MODEL SERIES 34/36/39 INSTALLERS MENU (continued)

y

p

/

(

g

(

g

g

j

p

g

p

p

(

p

g

p

p

p

p

p

p

(

/

/

CL Chassis Installers Menu Settings

ITEM VALUE RANGE DEFAULT VALDESCRIPTION

0-I. INSTALLER SEQ 0- 3 0 Leave default set to 0.
1-I. POWER MANAGE 0-7 0 Sets number of hours of no activit
2-I. AC ON 0-1 0 Set to 1 to enable auto turn on at
3-I. BAND
4-I. STRT CHANNEL 0-255 255 Channel at auto turn-on
5-I. CHAN LOCK 0-1 0 When set to 1, cannot tune from current channel.
6-I. GHOST CH, 0-1 0 Set to 1 to enable
7-I. STRT VOLUME 0-63,255 255 Volume level at TV turn-on
8-I. MIN VOLUME 0-63 0 Minimum volume settin
9-I. MAX VOLUME 0-63 63 Maximum volume settin
10-I. MUTE DISABLE 0-1 0 Set to 1 to disable mute function.
11-I. KEY DEFEAT 0-1 0 Set to 1 to disable Menu, Select, and Ad
12-I. IR BANKS EN. 0-1 0 Set to 1: enables to res
13-I. SCAN MODE 0-1 0 Channel scannin
14-I. STRT CH IN SM 0-1 0 Set to 1 t o
15-I. SLEEP TIMER 0-1 1 Set to 1 to enable Slee
16-I. EN. TIMER 0-1 1 Set to 1 to enable Timer.
17-I. ALARM 0-1 1 Set to 1 to enable Alarm.
18-I. NOT USED
19-I. NOT USED
20-I. FEATURE LEVEL 0-1 1 Zen 1 Leave default set to 1
21-I. V-CHIP 0-1 1 Set to 1 to enable V-Chi
22-I. MAX BLK HRS 0-99 12 Select number of Parental Control blockin
23-I. CAPTION LOCK 0-1 0 Set to 1 to retain Ca
24-I. TEXT MODE 0-1 1 Set to 1 to add Text o
25-I. FUNCTION PRE 0-3 0 Controls channel
26-I. NOT USED
27-I. NOT USED
28-I. CH. OVERRIDE 0-1 1 When set to 0, limits direct access to favorite channels.
29-I. OLD OCV 0-1 0 OCV should be set to 1.
30-I. ACK MASK 0-1 0 M. P. I. Communication
31-I. POLL RATE 20-169 94 M. P. I. Communication
32-I. TIMING PULSE 186-227 207 M. P. I. Communication
33-I. NOT USED
34-I. CAMPORT EN. 0-1 1 Set to 1 to enable the front AUX
35-I. NOT USED
36-I. NOT USED
37-I. REAR Y
38-I. NOT USED
39-I. NOT USED
40-I. AUTO CAMPORT 0-1 1
41-I. NOT USED
42-I. NOT USED
43-I. AUTO REAR Y
44-I. NOT USED
45-I. NOT USED
46-I. START AUX SRCE 0-2,255 255
47-I. AUX STATUS 0-1 0 Set to 1 for M. P. I., AUX source reported as Channel number instead of Channel 0.
48-I. DIS. SETUP M. 0-1 0
49-I. DIS. AUDIO M. 0-1 1
50-I. DIS. VIDEO M. 0-1 0

AFC 0-7 0 Tuning band, see detailed descriptions.

ut TV On/Off below start channel number.

C EN. 0-1 1 Set to 1 to enable the rear S-Video input.

Set to 1 to automatically switch to Camport.

C0-1 0

Set to 1 to automatically switch to rear S-Video input.

Set the starting AUX source.

Set to 1 to disable Setup menu.
Set to 1 to disable Audio menu.
Set to 1 to disable Video menu.

255 last viewed at turn off).

host channel display.

.

.

ond to IR codes to change Channel Bank directly.

modes with Ch. Up/Down.

Timer.

1 Zen 1).

.

tion setting at turn off.

tion to Closed Caption Menu.

review in Pay Per View function.

arameter.
arameter.
arameter.

before auto shutoff.

ower up.

set 255 to retain last volume level).

Keys on front panel.

hours.

Campot) input.

SR25-3828VD0171B 2-6 CL - INSTALLERS MENU

MODEL SERIES 34/36/39 INSTALLERS MENU (continued)

play prog

CL Chassis Installers Menu Settings

ITEM VALUE RANGE DEFAULT VALDESCRIPTION

51-I. DIS. V-CHIP M. 0-1 0
52-I. DIS. SOURCE M. 0-1 0
53-I. DIS. CH-TIME M. 0-1 0
54-I. EN. SET. COL. 0-1 0
55-I. FOR. SETUP M. 0-7 6
56-I. BCK SETUP M. 0-7 4
57-I. EN. AUDIO COL. 0-1 0
58-I. FOR. AUDIO M. 0-7 1
59-I. BCK AUDIO M. 0-7 7
60-I. EN. VIDE COL. 0-1 0
61-I. FOR. VIDEO M. 0-7 4
62-I. BCK VIDEO M. 0-7 7
63-I. EN. PTL. COL. 0-1 0
64-I. FOR. PTL. M. 0-7 6
65-I. BCK. PTL. M. 0-7 4
66-I. EN. SCR. COL. 0-1 0
67-I. FOR. SCR. M. 0-7 3
68-I. BCK SCR. M. 0-7 4
69-I. EN. CH-T COL. 0 -1 1
70-I. FOR. CH-T COL 0-7 1
71-I. BCK CH-T COL 0-7 1
72-I. NOT USED

73-I. CH NOT AVBLE 0-1 0

74-I. CH-TIME SIZE 0-1 0

75-I. NOT USED
76-I. DEFEAT XDS 0-1 0 When set to 1, XDS dis
77-I. NOT USED
78-I. UPN MSB 0-255 255
79-I. UPN MSB-1 0-255 255
80-I. UPN MSB-2 0-255 255
81-I. UPN LSB 0-255 255
82-I. CHKSM ERROR 0-1 1

83-I. HANDSHK TIME 0-5 0 Relaxes M. P. I. timing to be compatible with PC Windows controlled systems.
84-I. PERMANENT BLK 0-1 0 Removes block hour settings for Parental Control and makes blocks permanent.
85-I. A. MUTE TIME 0-254 50

86-I. V.MUTE TIME 0-254 50

Set to 1 to disable V-Chip (Parental Control) menu.
Set to 1 to disable Source Menu.
Set to 1 to disable Channel-Time display.
Set to 1 to enable Custom Color for the Setup menu.
Custom foreground color for the Setup menu.
Custom background color for the Setup menu.
Set to 1 to enable custom color for the Audio menu.
Custom foreground color for the Audio menu.
Custom background color for the Audio menu.
Set to 1 to enable custom color for the Video menu.
Custom foreground color for the Video menu.
Custom background color for the Video menu.
Set to 1 to enable custom color for the V-Chip (Parental Control) menu.
Custom foreground color for the V-Chip (Parental Control) menu.
Custom background color for the V-Chip (Parental Control) menu.
Set to 1 to enable custom color for the Source menu.
Custom foreground color for the Source menu.
Custom background color for the Source menu.
Set to 1 to enable custom co lor for the Channel Time display.
Custom foreground color for the Channel Time display.
Custom background color for the Channel Time display.

When set to 1 and channel override is 0, “NOT AVAILABLE” message is displayed when direct
accessing a channel not in the channel list.
When set to 1 and transparent background is selected for Channel-Time display, (foreground
color = background color and custom color enabled) a large channel number is displayed
instead of the normal Channel-Time display.

ram information will not appear.

User defined number, most significant byte.
User definable, most significant byte-1.
User definable, most significant byte-2.
User definable, least significant byte.
Enforces rigid M. P. I. checksum.

Controls muting audio delay time when switching between AUX sources.
Controls muting video delay time when switching between AUX sources.

SR25-3828VD0171B 2-7 CL - INSTALLERS MENU

SECTION 2

CL MODEL SERIES 34 & 36 FACTORY MENU

FACTORY MENU DESCRIPTION FOR SERIES 34 & 36
0-F FACT MENU: Use SELECT UP and DOWN Keys to select

item 00, the Factory Mode. The Factory uses this item
when the module is being tested. It has two positions: 0
and 1. In the field, this item should always be left off
(Zero is off).

When the Factory Menu is on, the AC Power On feature is
always enabled regardless of the setting of AC ON in the
Installer’s Menu.

The TV set will automatically come on when AC is ap­plied. Use the remote to reenter the Factory Menu to
turn the Factory Menu off. The Factory Mode may also be
turned off by setting the clock or runing the Auto Pro­gram feature in the customer Set Up menu.

0IMCRMI039A 1.83 01

Microcontroller

part number

01-F PRESET PX

Build Date

05/03/03 TE = 10110000

Program

Revision

Font

Revision

TE Status

6-F VIF VCO ADJ: (PIF Voltage Oscillator). Range is 0-

63.
7-F VIF VOUT GAIN: VIF video detector output level ad-

justment at pin 58. Range is 0-7, typical value is 2.

8-F AFT DEFEAT: AFT OUT On/Off; 0=AFT on, 1=DEFEAT.
9-F VIF DEFEAT: VIF AGC GAIN Normal/Minimum, Switch

0=AGC Function & 1=Defeat (Min Gain).

10-F VOL CLIPPING: Selects the volume clipping mode.
11-F PRE AUXINPUT: Prescale for auxiliary input signals.
12-F PRE AUDDEMOD: Prescale for the demodulated BTSC

signal.

13-F SPAT STREGHT: Spatial effect strength.
14-F SPAT MODE: Spatial effect Mode.
15-F SPAT GAIN: Spatial effect high Pass GAIN.
16-F AVC: Delay time for Automatic Volume Correction.
17-F RED CUTOFF: B&W tracking adjustment. Range is 0-

254. Typical value is 70.

1-F PRESET PX: Stores the video customer menu adjust­ments in the nonvolatile memory of the EAROM. Settings
for Contrast, Brightness, Color, Tint and Sharpness are
stored in this manner. 0 is custom and 1 is preset stored .

2-F PRESET AX: Stores customer Audio menu adjustments
in the nonvolatile memory of the EAROM. Settings for
Bass, Treble, Balance, Audio mode, Front Surr and
SoundRite are stored in this m anner. 0 is custom and 1 is
preset stored.

3-F VERT P0S: Moves On-Screen Displays vertically. The
Range is from 0-30. This adjustment is generally set at

15.
4-F H0RZ POS: Moves On-Screen Displays horizontally.

Range is from 1-45.
5-F RF DELAY ADJ: (RF autom atic Gain Con tr ol) Ran g e is

from 0-127. 35 is a general setting. Tune in weakest
available channel and adjust for a snow-free picture.

18-F GREEN CUTOFF: B&W tracking adjustment. Range is
0-254. Typical value is 70.

19-F BLUE CUTOFF: B&W tracking adjustment. Range is
0-254. Typical value is 70.

20-F RED DRIVE: B&W tracking adjustment. Range is 0-

127. Typical value is 70.
21-F BLUE DRIVE: B&W tracking adjustment. Range is 0-

127. Typical value is 70.
22-F RF S-BRIGHT: Sets adjustment range of customer

for brightness in RF Mode. Range is 0-63. A typical value
is 31.

23-F AUX B-OFFSET: (Auxiliary Brightness Offset). This
offset value is to increase and decrease brightness level
on AUX Mode with relation to RF sub-brightness.

SR25-3828VD0171B 2-8 CL - INSTALLERS MENU

CL MODEL SERIES 34 & 36 FACTORY MENU

24-F MAX CONTRAST: See adjustment range of customer

control for contrast. Range is 0-63. Typical value is 63.
25-F TRAP 3.58: 0=Off & 1=On. Set 1 to normal TV opera-

tion. Set to 0 is Y/C is being used at chassis with a comb
filter .

26-F TRAP 3.58F: Fine-tuning adjustment for notch 3.58
filter on RF mode. Range is 0-3. Set to 3.

27-F RF Y DL TIME: Luma signal delay time adjustment
on RF mode. Range is 0-6. Set to 3.

28-F RF CHROMA BP: Chroma Band Pass Filter RF Mode.
0= BPF is on, 1=Take off. Typically set in 0.

29-F AUX Y DL TIME: Luma signal delay time adjustment
on Aux Mode. Range is 0-6. Typically set to 3.

30-F AUX CHROMA BP: Chroma Band Pass Filter for Aux
Mode. 0= BPF is On, 1=Take off. Typically set in 0.

31-F AUX SUBTINT: Hue adjustment on Aux Mode. Range
is 0-15. Set to 8.

32-F C KILL LEVEL: Color killer sensitivity switch. Typi­cal value is 0.

41-F AFC2 GAIN: Horizontal AFC2 Gain switch. The range
is 0-1.

42-F HVCO ADJ: Horizontal free running frequency ad­justment. Range 0-7, typically set at 4.

43-F H FREE: Forced horizontal free running mode, the
range is 0-1, typically set to 0.

44-F V FREE: Forced vertical free running mode, the range
is 0-1, typically set to 0.

45-F SLICE DOWN1: Sync det. slice level section. The
range is 0-1 typically set to 0.

46-F SLICE DOWN2: Sync det. slice level switch. The range
is 0-1 typically set to 0.

47-F A-SLICE DOWN: Sync det. slice level switch during
video period. The range is 0-1 typically set to 0.

48-F FBP VTH L: Flyback pulse slice voltage. The range is
0-1, typically set to 0.

49-F HV BLK OFF: Horizontal and vertical blanking Off/
On RGB out switch. The range is 0-1, typically set at 0 =
On blanking output.

33-F Y SW LPF: Luma switch output. 0=FLAT, 1=LPF
(Fc=700 KHz).

34-F ACL ABCL: ABCL ON/OFF switch; 0=Off, 1=ABCL On.
Typically set to 1.

35-F ABCL SENS: ABCL sensitivity low/ high switch. 0=
low; 1= high. Typically set to 0.

36-F H SIZE: Horizontal size adjustment. The range is 0­254 and the default is value is 50.

Note: This item is only available for 32” models.

37-F V SIZE: Vertical ramp amplitude adjustment. The
range is 0-254, typically set to 32.

38-F H PHASE: Horizontal Phase adjustment. The range
is 0-32 and the typical setting is at 9.

39-F V PHASE: Vertical Phase adjustment. The Range 0-7
is typically set to 1.

40-F AFC1 GAIN: Horizontal AFC1 Gain switch. The range
is 0-1.

50-F V SYNC DET: Vertical sync det minimum width switch.
Default 1, typically set at 1.

51-F 1 WINDOW: Vertical Sync det mode. Range is 0-1,
typically set to 0.

52-F BGP FBP OFF: BGP output without FBP input. The
range is 0-1 and the default setting is 0.

53-F RF SUBTINT: Hue adjustment on RF Mode. Range is
0-15, set to 7.

54-F S-V SUBTINT: Hue adjustment on S-Video Mode.
Range 0-15. Typically set at 10.

55-F MAX COLOR: For limiting the color range at maxi­mum. Range is 0-127. Typically set at 52.

56-F SUB COLOR: For limiting the color range at mini­mum. Range is 0-63. Typically set at 27.

57-F AIR AFT: Force to AFC in Air Band. Range is 0-1.
Typical value is 0.

SR25-3828VD0171B 2-9 CL - INSTALLERS MENU

CL MODEL SERIES 34 & 36 FACTORY MENU

T

y

j

j

play

y

y

j

g

p

/

/

pping

y

D

p

p

p

y

/

g

/

g

/

g

g

g

y

p

g

y

y

P

j

g

y

p

j

j

g

g

g

y

y

y

y

g

y

y

p

y

00-F. FACT MENU0-10000000Factor
01-F. PRESET PX 0-1 1110011Used to store video ad
02-F. PRESET AX 0-1 1111111Used to store audio ad
03-F. VERT. POS 0-30 15 15 15 15 15 15 15 Moves On Screen dis
04-F. HORZ POS 0-45 24 20 20 20 20 20 20 Moves On S c reen display horizontall
05-F. RF DELAY ADJ0-12735353535353535Weak channel ad
06-F. IF VCO ADJ 0-63 33 33 33 33 33 33 33 PIF Vol ta
07-F. VIF VOUT GAIN0-72220022Video detector out
08-F. AFT DEFEAT0-10000000AFT Out On
09-F. VIF DEFEAT0-10000000VIF AGC Gain Normal
10-F. VOL CLIPPING0-150000000Selects the Volume Cli
11-F. PRE AUX_INPUT0-254 26 26 26 26 26 26 26 Pre scale for Auxiliar
12-F. PRE AUX_DEMO
13-F. SPAT STRENGTH0-25463636363636363S
14-F. SPAT MODE0-150000000S
15-F. SPAT GAIN0-152222222S
16-F. AVC 0-154444444Dela
17-F. RED CUTOFF0-127708070707070 70B
18-F. GREEN CUTOFF0-12770907070707070B
19-F. BLUE CUTOFF0-12770707070707070B
20-F. RED DRIVE 0-254 70 70 70 70 70 70 70 B/W tra ckin
21-F. BLUE DRIVE 0-2 54 70 70 70 70 70 70 70 B/W tra ckin
22-F. RF S-BRIGHT 0-63 31 31 31 31 31 31 31 Brightness for RF Mode
23-F. AUX B-OFFS ET 0-63 31 31 31 31 31 31 31 Auxiliar
24-F. MAX CONTRAS T 0-63 63 63 63 63 63 63 63 Set maximum customer control for contrast
25-F. TRAP 3.580-10110000Tra
26-F. TRAP 3.58F0-3211222 2Fine tunin
27-F. RF Y DLTIME0-63223333Luma dela
28-F. RF CHROMA BP0-11111111Band Pass filter for RF Mode
29-F. AUX Y DL TIME0-73223333Luma dela
30-F. AUX CHROM A B
31-F. AUX SUBTINT0-157997777Tint ad
32-F. C KILL LEVEL0-10000000Color killer level
33-F. Y SW LPF0-11111111Low Pass filter Luminance
34-F. ACL ABCL0-11111111Bri
35-F. ABCL SENS0-10000000ABCL sensitivit
36-F. H SIZ E 0-254 N/AN/A50N/AN/AN/AN/A Horiz on tal size adjustment
37-F. V SIZE 0-25432323232323232Vertical ram
38-F. H-PHASE0-329999999Horizontal Phase ad
39-F. V-PHASE0-71111111Vertical Phase ad
40-F. AFC1 GAIN0-1000000 0Horizontal AFC1 Gain switch
41-F. AFC2 GAIN0-1000000 0Horizontal AFC2 Gain switch
42-F. HVCO ADJ0-74444444Horizontal free runnin
43-F. H FREE 0-1000000 0Forced horizontal free runnin
44-F. V FREE 0-1000000 0Forced vertical free runnin
45-F. SLICE DOWN10-10000000S
46-F. SLICE DOWN20-10000000S
47-F. A-SLICE DOWN0-10000000S
48-F. FBP VTH L0-10000000Fl
49-F. HV BLK OFF0-10000000Horizontal and vertical blankin
50-F. V SYNC DET0-1111111 1Vertical s
51-F. 1 WINDOW0-10000000Vertical S
52-F. BGP FBP OFF0-10000000BGP out
53-F. RF SUBTINT0-15118 811111111
54-F. S-V SU BTIN T 0-1 5 10 11 11 7 7 7 7
55-F. MAX COLOR 0-127 50 52 55 56 56 56 56
56-F. SUB COLOR0-6318253018181818
57-F. AIR AFT0-10000000

H25F36DTH27F36DTH32F36DTH19F34DTH20F34DTH25F34DTH27F34D

0-254 24 24 24 24 24 24 24 Prescale for the demodulated BTSC signal

0-10110000Chroma Band Pass filter for Aux Mode

CL Chassis Series 34 & 36 Factor

Menu Settings

mode, refer to page 2-8

e Controlled Oscilla tor

Off SW

atial Effect Strength
atial Effect Mode
atial Effect High-Pas s Gain

time for automatic Volume correction
W tra ckin
W tra ckin
W tra ckin

br ightnes s offset value

3.58 filter, 0=On 1=Off
adjustments for Trap 3.58

time adjustments for RF Mode
time adjustments for Aux M ode

ustment for A ux Mode

htness/Contrast limiter

amplitude adjustment

nc det. slice leve l section
nc det. slice leve l switch
nc det. slice level switch during vi deo period

back puls e slice volt age

nc det minimum width swi tch

nc de t mode

ut without FBP input
Subt int adj ustme nt for RF Mode
Subt int adj ustme nt for S-Video
For limit color range at maximum
For limit color range at minimum
Force to AFC in Air Band

ustments
ustments

ver ticall

ustment

ut level

Mi nimun switch

mode

Input s ignals

ustment

ustment

frequency adjustment

mode

mode

Off/On RGB out switc

SR25-3828VD0171B 2-10 CL - INSTALLERS MENU

CL MODEL SERIES 39 FACTORY MENU

FACTORY MENU DESCRIPTION FOR 39 SERIES.

Note: There are two microcontrollers available for the

39 series: OIMCRM1039A and OIMCRM1039B.

00-F FACT MENU: Use SELECT UP and DOWN Keys to select
item 00, the Factory Mode. The Factory uses this item
when the module is being tested. It has two positions: 0
and 1. In the field, this item should always be left off
(Zero is off).

When this item is off, only the first twenty-four items in
the Installer’s Menu can be accessed. They appear one at
a time near the middle left of the screen. When this item
is set to 1, 91 or 92 (Healtview) menu items are avail­able. In the Factory Menu, only the selected menu item
is displayed, near the top of the screen.

0IMCRMI039A 1.66 01

Microcontroller

part number

01-F PRESET PX

Build Date

05/03/03 TE = 10110000

Program
Revision

Font

Revision

TE St atus

When the Factory Menu is on, the AC Power-On feature is
always enabled regardless of the setting of AC ON in the
Installer’s Menu. The TV set will automatically come on
when AC is applied.

Use the remote to reenter the Installer’s Menu to turn
the Factory Menu off. Setting the clock, or running the
Auto Program feature in the customer Set Up menu may
also turn off the Factory Mode.

01-F PRESET PX: Stores the video customer menu adjust­ments in the nonvolatile memory of the EAROM. Selec­tions are Custom and Preset-Store. Settings for Contrast,
Brightn ess, Color and Tint are stored in this manner. 0 is
custom and 1 is preset stored.

05-F VIF VCO ADJ: (PIF Voltage Oscillator). Range is 0-

63.
06-F VIF VOUT GAIN: VIF video detector output level

adjustment at pin 58. The range is 0-7, typical value is

2.

07-F AFT DEFEAT: AFT OUT On/Off; 0=AFT on, 1=DEFEAT.
08-F VIF DEFEAT: VIF AGC GAIN N ormal/Minimum, Switch

0=AGC Function & 1=Defeat (Min Gain).
09-F RED CUTOFF: B&W tracking adjustment. Range is 0-

254. Typical value is 70.
10-F GREEN CUTOFF: B&W tracking adjustment. Range is

0-254. Typical value is 70.
11-F BLUE CUTOFF: B&W tracking adjustment. Range is

0-254. Typical value is 70.
12-F RED DRIVE: B&W tracking adjustment. Range is 0-

127. Typical value is 70.
13-F BLUE DRIVE: B&W tracking adjustment. Range is 0-

127. Typical value is 70.
14-F RF S-BRIGHT: Sets adjustment range of customer

for brightness in RF Mode. Range is 0-63. A typical value
is 31.

15-F AUX B-OFFSET: (Auxiliary Brightness Offset). This
offset value is to increase and decrease brightness level
on AUX Mode with relation to RF sub-brightness.

16-F MAX CONTRAST: See adjustment range of customer
control for contrast. Range is 0-63. Typical value is 63.

17-F TRAP 3.58: 0=Off & 1=On. Set 1 to normal TV opera­tion. Set to 0 is Y/C is being used at chassis with a comb
filter .

02-F VERT P0S: Moves On-Screen Displays verti cally. The
Range is from 0-30. This adjustment is generally set at

18-F TRAP 3.58F: Fine-tuning adjustment for notch 3.58

filter on RF mode. Range is 0-3. Set to 3.

15.

19-F Y DL TIME RF: Luma signal delay time adjustment

03-F H0RZ POS: Moves On-Screen Displays horizontally.

on RF mode. Range is 0-6. Set to 3.

Range is from 0-45.

20-F CHROMA BP-RF: Chroma Band Pass Filter RF Mode.

04-F RF DELAY ADJ: (RF automatic Gain Control) Range

0= BPF is on, 1=Take off. Typically set in 0.

is from 0-127. 35 is a general setting. Tune in weakest
available channel and adjust for a snow-free picture.

SR25-3828VD0171B 2-11 CL - FACTORY MENU

CL MODEL SERIES 39 FACTORY MENU

21-F Y DL TIME AUX: Luma signal delay time adjustment

on Aux Mode. Range is 0-6. Typically set to 3.
22-F CHROMA BP-AUX: Chroma Band Pass Filter for Aux

Mode. 0= BPF is On, 1=Take off. Typically set in 0.
23-F AUX SUBTINT: Hue adjustment on Aux Mode. Range

is 0-15. Set to 8.
24-F C KILL LEVEL: Color killer sensitivity switch. Typi-

cal value is 0.
25-F Y SW LP: Luma switch output. 0=FLAT, 1=LPF

(Fc=700 KHz).

26-F ACL ABCL: ABCL ON/OFF switch; 0=Off; 1=ABCL On.

Typically set to 1.
27-F ABCL SNS: ABCL sensitivity low/ high switch.

0= low, 1= high. Typically set to 0.
28-F AFC1 GAIN: Horizontal AFC1 Gain switch. The range

is 0-1.
29-F AFC2 GAIN: Horizontal AFC2 Gain switch. The range

is 0-1.
30-F HVCO ADJ: Horizontal free running frequency ad-

justment. Range 0-7, typically set at 4.
31-F V SIZE: Vertical ramp amplitude adjustment. The

range is 0-254, typically set to 32.

38-F HV BLK OFF: Horizontal and vertical blanking Off/
On RGB out switch. The range is 0-1, typically set at 0 =
On blanking output.

39-F V SYNC DET: Vertical sync det minimum width switch.
Default 1, typically set at 1.

40-F 1 WINDOW: Vertical Sync det mode. Range is 0-1,
typically set to 0.

41-F BGP FBP OFF: BGP output without FBP input. The
range is 0-1 and the default setting is 0.

42-F AIR AFT: Force to AFC in Air Band. Range is 0/1.
Typical value is 0.

43-F H PHASE: Horizontal Phase adjustment. The range
is 0-32 and the typical setting is at 9.

44-F V PHASE: Vertical Phase adjustment. The Range 0-7
is typically set to 1.

45-F SUB COLOR: For limiting the color range at mini­mum. Range is 0-63. Typically set at 27.

46-F MAX COLOR: For limiting the color range at maxi­mum. Range is 0-127. Typically set at 52.

47-F RF SUBTINT: Hue adjustment on RF Mode. Range is
0-15, set to 7.

32-F H FREE: Forced horizontal free running mode, the
range is 0-1, typically set to 0.

33-F V FREE: Forced vertical free running mode, the range
is 0-1, typically set to 0.

34-F SLICE DOWN1: Sync det. slice level section. The
range is 0-1 typically set to 0.

35-F SLICE DOWN2: Sync det. slice level switch. The range
is 0-1 typically set to 0.

36-F A-SLICE DOWN: Sync det. slice level switch during
video period. The range is 0-1 typically set to 0.

37-F FBP VTH L: Flyback pulse slice voltage. The range is
0-1, typically set to 0.

SR25-3828VD0171B 2-12 CL - FACTORY MENU

CL MODEL SERIES 39 FACTORY MENU

y

j

play

y

y

g

p

/

/

g

g

g

g

g

g

g

p

j

y

p

y

p

j

p

ght/

y

g

p

g

g

y

y

y

y

g

y

y

p

j

j

g

g

j

y

CL Chassis Series 39 Factor

00-F. FACT MENU 0-1 0 0 Factor

ITEM RANGE

01-F. PRESET PX 0-1 1 1 Used to store video menu ad
02- F. VERT POS 0-30 15 15 Moves On Screen dis
03- F. HORZ P OS 0-45 20 20 Moves On Screen display horizontall
04- F. RF DELAY ADJ 0-127 35 35 Weak channel adjustment
05-F. VIF VCO ADJ 0-63 33 33 VIF Volta
06-F. VIF VIDEO OUT GAIN 0-7 2 2 Video Detector out
07-F . AFT DEFEAT 0-1 0 0 AFT Out On
08-F. VIF DEF EAT 0-1 0 0 VIF AGC normal
09-F. RED CUTOFF 0-254 70 70 B&W trackin
10-F. GREEN CUTOFF 0-254 70 70 B&W trackin
11-F. BLUE CUTOFF 0-254 70 70 B&W trackin
12-F. RED DRIVE 0-127 70 70 B&W trackin
13-F. BLUE DRIVE 0-127 70 70 B&W trackin
14- F. RF SU B BRT 0 -63 31 3 1 B ri
15-F. AUX BRT OFFSET 0-63 31 31 Auxiliar bri
16-F. MAX CONTRAST 0-63 63 63 Sets maximum customer control for contrast
17-F. TRAP 3.58 0-1 0 0 3.58 MHz Tra
18-F. TRAP 3.58 F 0-3 2 2 Fine ad
19-F. Y DL TIME RF 0-7 3 3 Luma dela
20-F. CHROMA BP RF 0-1 1 1 Band
21-F. Y DL TIME AUX 0-7 3 3 Luma dela
22-F. CHROMA BP-AUX 0-1 0 0 Band
23-F. AUX SUBTINT 0-15 13 13 Subtint Ad
24-F. CKILL LEVEL 0-1 0 0 Colo r killer level
25-F. YSW LPF 0-1 1 1 Low
26-F. ABCL 0-1 1 1 Bri
27-F. ABCL SNS 0-1 0 0 ABCL sensitivit
28-F. AFC1 GAIN 0-1 0 0 Horizontal AFC1 Gain switch
29-F. AFC2 GAIN 0-1 0 0 Horizontal AFC2 Gain switch
30-F. HVCO ADJ 0-7 4 4 Horizontal free runnin
31-F. V SIZE 0-254 32 32 Vertical ram
32-F. H FREE 0-1 0 0 Forced horizontal free runnin
33-F. V FREE 0-1 0 0 Forced vertical free runnin
34- F. SL I CE DOWN1 0- 1 0 0 S
35- F. SL I CE DOWN2 0- 1 0 0 S
36-F . A-SLICE DOWN 0-1 0 0 S
37-F. FBP VTH-L 0-1 0 0 Fl
38- F. HV BLK OFF 0-1 0 0 Horizontal and vertical blankin
39-F. V SYNC DET 0-1 1 1 Vertical s
40-F. I WINDOW 0-1 0 0 Vertical S
41-F. BGP FBP OFF 0-1 0 0 BGP out
42-F. AIR AFT 0-1 0 0 F orce to AF C in Air Band
43-F. H PHASE 0-32 9 9 Horizontal Phase ad
44-F. V PHASE 0-7 1 1 Vertical Phase ad
45-F. SUBCOLOR 0-63 23 23 For limit color ran
46-F. MAX COLOR 0-127 50 50 For limit color ran
47-F. RF SUBTINT 0-15 11 11 Subtint Ad

H25F39DT H27F39DT

Menu Settings

DESCRIPTION

mode - refer to page 2-11

ustments

verticall

e Controlled Oscillator

ut level

Off sw

minimum sw
adjustment
adjustment
adjustment
adjustment
adjustment

htness for RF mode

htness offset value

; 0=On, 1=Off

ustment for Trap 3.58

time for RF Mode

ass filter for RF Mode

time for Aux Mode

ass filter for Aux Mode

for Aux Mode

ass filter for lumina nce

Contrast limiter

frequency adjustment

amplitude adjustment

mode

mode
nc det. slice level section
nc det. slice level switch
nc det. slice level switch during video period

back pulse slice voltage

Off/On RGB out switch
nc det minimum width sw itch
nc det mode

ut without FBP input

ustment

ustment

e at minimum
e at maximum

for RF Mode

SR25-3828VD0171B 2-13 CL - FACTORY MENU

SERVICING

GENERAL INFORMATION

Servicing the CL chassis is the same as with other Zenith
single-board chassis. If the set is dead, first check the
standby and switched voltages. If the switched voltages
do not appear , check th e power “On” circuit. If the power
supply is OK and the set will turn on, the Horizontal
sweep circuit should be checked next. Is horizontal drive
available from the video processor chip? If the sweep
system does not start up, sweep-derived voltages will
not be generated.

If the sweep and high-voltage circuits are OK and video
or audio are missing, then the audio/video/tuner
circuits should be checked. If the receiver is working
but some feature is not working, check the Service Menu.
Bring up the Service menu and check to be sure that all
items are set correctly.

MODULE-LEVEL SERVICING

The CL Chassis is Module Level r epair only. Replacement
modules are available on an exchange basis.

If the CRT or Video processor IC are replaced, Black/
White tracking must be reset. Refer to the Service Menus
section of this book for Black/White tracking
adjustments.

When troubleshooting video circuits, remember that all
video travels through the Video/Audio switcher IC. A
defect in either of these IC’s can result in no video.

WARNING!

DO NOT disconnect the Video output module
from the CRT when troubleshooting 32” receiv­ers. If the video output module is removed on
these sets while power is ON, the CRT will arc
and can be permanently damaged. Also, the
technician is in danger of serious shock. There is
a termination circuit (W5101) on the CRT mod­ule to prevent this from happening.

SERVICING THE POWER SUPPLY

Check the standby voltages first:
+VM at CX3415 (usually 169.7 VDC when 120 VCA)
B+ at CX3801

+12 VSB at CX3613
+14 at CX3610
+5 VSB at CX3841

Check the following:
Keyboard input at IC6000 pins 7 and 8
IR input at IC6000 pin 15
Power On output at IC6000 pin 32
Check the switched voltages:
+9 VSW DC at CX3811
+14 VAUD DC for the Audio Amp at 2X3510
+8 VSW DC CX3831

SWEEP DERIVED VOLTAGES

+28 volts DC at (+) CX2114
+35 volts DC at the junction of CX3253 and DX3252
+215 volts DC at the junction of CX3208 and RX3208
+33 volts DC at the junction of RX3216 and ZD6001

CRT FILAMENT

Check at pin 3 and 4 of connector CN2C5A. This should
read voltages between 6.0 and 6.4 volts AC on a true
RMS meter.

VIDEO PROCESSOR ICX2200

Check the following key operating signals and voltages:
Luminance at ICX2200 pin 43
Chroma at ICX2200 pin 45
Horizontal drive at pin 32
Vertical drive at pin 24
R Out pin 19
G Out pin 20
B Out pin 21
Serial Clock, Serial Data pins 27 and 28 respectively
VCC 9 volts pins 9, 26, 46 & 48
R in from micro (IC6000) at pin 15
G in from micro (IC6000) at pin 16
B in from micro (IC6000) at pin 17

Note: B+ 124 VDC for 32” & 27”, B+ 126 VDC for

25” and B+ 120 VDC for 19” & 20”.

SR25-3828VD0171B 3-1 CL - SERVICING

SERVICE ADJUSTMENTS (continued)

MICROPROCESSOR

Check the following:
IR in on pin 15
+5 volts on pins 27 and 18
Serial Data, Serial Clock on pins 36 and 38
Reset at pin 30
Horiz. SYNC at pin 1, Vertical SYNC at pin 2
R Out at pin 52, G Out at pin 51 and B Out at pin 50

VERTICAL CIRCUIT

Check the following at ICX2100:
Vertical drive at pin 4.
Vertical out at pin 2.
+28 VDC at pin 6.

HORIZONTAL CIRCUIT

Check the following:
Horizontal drive to base of Q3201 predriver.
Driver transformer output at base of QX3203.
Shutdown voltage at RM6009.

SHUTDOWN CIRCUIT OPERATION

(Refer to figure below)
The flyback pulse voltage from pin 6 of TX3204 (flyback

transformer) is peak detected (rectified) by the action
of the diode DX3006 and capacitor CX3003. This is from
a DC voltage appearing on CX3003 representative of the
CRT anode voltage (HV) produced by TX3204. Precision
resistors RX3013, RX3015, RX3016, and RX3022 divide
this voltage down. This lower voltage appears on the
input (QX3002 collector) of a comparator circuit formed
by RX3008, ZDX3004, QX3002, RMX3009, CX3004,
QX3001, RMX3017 and RMX3021. In the event the CRT
anode voltage becomes excessive, the comparator output
(QX3001 emitter) will go to high level, at approximately
5 volts. This signal (SHUTDOWN) is sent to pin 4 of
IC6000 (microprocessor), and used to turn off the TV
set.

CRT ANODE HIGH VOLTAGE MEASUREMENT PROCEDURE

Each CRT screen size has its own safe operating anode
and shutdown voltage. Critical safety component
(designated with and 'X' in the component designator)
are designed to operate the CRT at a safe operating
anode voltage and provide proper shutdown thresholds.
If replacement of any of these components is deemed
necessary, it is important to use original type Zenith

Flyback Pulse

RX3211

IN

From Pin 6

TX3204

SR25-3828VD0171B 3-2 CL - SERVICING

DX3006

CX3003

RX3013

RX3008

ZDX3004

RX3022

RX3015

RX3016

QX3002

RMX3009

CX3004

+5v

QX3001

RMX3021

SHUTDOWN

OUT

TO PIN 4
IC6000

SERVICE ADJUSTMENTS (continued)

components. After replacement is made, confirm proper
anode voltage using the following procedure.

Measurement of the CRT anode voltage must be performed
using a high impedance-high voltage meter, with no
raster on the screen, and operating at normal horizontal
frequency. 15.75 KHz. (NTSC signal).

After discharging the CRT, connect a high impedance­high voltage meter to the CRT anode. Turn the television
"on" and confirm a good signal is being displayed. Reduce
Brightness and Contrast setting until the procedure is
well extinguished.

Observe the anode voltage on the meter reading and
compare with the table below for the proper CRT screen
size. If the voltage reading is higher than the maximum,
verify circuit component values and proper operation.

CRT anode Voltage

CRT Screen Size

19" 26 ± 1.0 32
20” 26 ± 1.0 32

24"/25” 28 ± 1.0 34

27” 28 ± 1.0 34
32” 30 ± 1.0 36

Nom inal A no de V o lt ag e

(KV)

Max. Shutdow n Vo lt age

(KV)

3 Wait until the Video Menu or display appears.
4 Connect a variable Resistor (1M ohm) in parallel

with RX3703, and decrease slowly the resistance
value until shutdown occurs.

5 Measure high voltage shutdown.

COMPONENTS WITH ANY INFLUENCE IN HV INCREASE

COMPONENTS WITH ANY INFLUENCE IN HV INCREASE

CX3216 RX3015

CX3210 RX3013
CX3212 ZDX3004
CX3252 RX3704
CX3256 RX3703
RX3022 RX3705

Fly-Back Transform er

Deflection Yoke

HV SHUTDOWN PROCEDURE

1 After discharging the CRT, connect a high

impedance-high voltage meter to the CRT
anode.

2 Access Video Menu and adjust the brightness

and contrast controls for minimum screen
luminance (beam current to 0mA).

SR25-3828VD0171B 3-3 CL - SERVICING

SERVICE ADJUSTMENTS (continued)

IF SERVICING

VIDEO DETECTOR

If there is no viewable picture on screen, access the
Service Menu and check default settings for the
following items:

#5 RF ADJ should be at least 30.
#6 VIF VCO ADJ set to 63.
Tune in a good off-the-air signal. Place a high-

impedance voltmeter at pin 2 of ICM2200. Set VIF defeat
to (#9) to “1”, reset VIF defeat (#9) to “0”. Adjust
item VIF VCO (#6) to 2.5 volts DC.

AGC DELAY

With a strong noise-fr ee antenna sign al, adjust RF DELA Y
ADJ (#5) to a higher setting until th e signal gets n oisier .
Decrease the setting again for a noise-free picture.

Note: If the setting is too low (under 20) the

tuner input will overload. Under certain
conditions, beats may also appear in the
picture (Typical value is 35).

G2 ADJUSTMENT

Use the following procedure when resetting G2.

1. Set brightness and contrast in the Video menu to
mid range.

2. Set color level minimum.

3. Connect the output of an NTSC generator to the
antenna input on the receiver.

4. Select a color bar signal and turn color off. Adjust
the G2 control so that the range of bar pattern
starts from completely white (not overdriven) to
black. Leave visible 6 of 8 bars.

5. Return color level control to its normal setting.

FOCUS ADJUSTMENT

1. Connect the output of an NTSC generator to the
antenna input on the receiver.

2. Select white raster pattern.

3. Push menu key of remote control to observe the
OSD.

4. Adjust focus potentiometer to obtain the best fo­cus at letters of menu.

ADJUSTMENT OF RGB CUTOFF

Note: If the Main Module or the CRT has been

replaced, G2 must be readjusted before
adjusting the RGB Cutoff.

1. Enter the Service menu to gain access to the cutoff
adjustments. (Factory mode item 00 must be set to 1
to gain access to this adjustment).

2. Set R Gain (Red) and B Gain (Blue) registers in the
Service menu to the default setting for the screen
size as listed in the service menu. See table.

3. Set color level and contrast to minimum. Set tint to
mid range.

34 & 36 Series register

Control:
Red Gain 20 (12) 70
Blue Gain 21 (13) 70

4. Connect the output of an NTSC generator to the
antenna input of the receiver. Set the generator to a
pure white signal, chroma off.

5. Set Factory menu registers #17/(9), #18(10), and
#19(11) to adjust cutoff controls for 34,36 & 39 se­ries.

6. Carefully observe which color is predominant on the
CRT: Red, Green or Blue. Do not change the value of
cutoff control of this color.

7. Adjust the other two cutoff controls to obtain color
balance on the screen.

8. Select the color bars pattern from the Video generator
and turn the chroma off. Check that the TV set dis­plays 3/4 of gray scale from white to black. If black
level is too high, readjust register #22, RF Sub Bright­ness for Series 34 & 36. Readjust #14 RF Sub Bright­ness for Series 39. Do n ot move Aux B Offset resistor.

9. Return the color level control to preset.

10.Disable the factory menu (Factory Mode item 0 must
be set to 0). Select “Preset” in the Video Menu under
picture preference.

All series & sizes

SR25-3828VD0171B 3-4 CL - SERVICING

SERVICE ADJUSTMENTS (continued)

SWITCHING PROCESS

Video switching is done between the CV inputs and the
Y/C inputs. There are three CV signals to consider:

CAMPORT VIDEO enters at pin 7 of IC2901.
REAR VIDEO enters at pin 5 of IC2901.
IF Video enters at TV pin 12 of IC2901.

These signals exit from VOUT1 (pin 11) to be processed
and returned to the switch as Y/C signals (Y-COMB and
IC2902).

The second part of the switching is between:
Y/C COMB signals enter at pins 10 and 7 of IC2902 and

Y/C EXT signals entering at pins 12 & 5 of IC2902.
The selected Y/C signals exit from pins 11 & 8 to be

sent to the video processor as main signals.

VIDEO PROCESSING & SWITCHING WITH Y/C INPUT

Close caption is achieved by taking a signal from the
YSW-OUT pin (31) of the video processor.

SENSING AND PRIORITIES

CL-Series 34 & 39 models do not have a source menu.
Software sensing the inputs based on their priorities
does switching between sources.

The camport input always has first priority, it is sensed
directly through the microprocessor. The S-Video input
has the second level. The Y/C connector does the S­Video sensing. The third level corresponds to rear video
and antenna signal (RF), they would be selected by
remote control.

IF

Tuner

SAW Filter

To
Video
Output
Board

ICM2200

M61250FP

63

PIFIN

64

2

SCL

26

SDA

27

ROUT

14

GOUT

15
16

BOUT

“CAMPORT” JK PK inputs

VRL

“REAR” JK PK inputs

V

R

C-IN
Y-IN

YSW-OUT

FBLNK

ROSD
GOSD
BOSD

L

FSC 29

Main Board

58VIDEO OUT

38
41

31

24

25
26
27

Audio
Trap

C-MAIN
Y-MAIN

Y-Main for MICRO

Video Sense Line

Micro
Processor

IC2400

COMB FILTER

TC90 A45P

BPF

3.58

TRAP

IC2902

8

11

5
7

10

12

9

5

8

7

IC2901

3.58

Y/C IN

Y

EXIT

C

EXIT

YC SENSE LINE

SR25-3828VD0171B 3-5 CL - SERVICING

SERVICE ADJUSTMENTS (continued)

y

Adj

PURITY & CONVERGENCE SETUP PROCEDURE

PRELIMINARY SETUP

1. Allow the receiver to warm up for 15 to 20 minutes.

2. Degauss the CRT.

3. Connect a crosshatch generator to the receiver and
“rough in” the static (center) convergence. Follow
the Convergence Procedure.

4. Adjust for best focus.

PURITY ADJUSTMENT

1. Purity tab positioning. Set the 2 pole purity tabs
together in the 3 or 9 o’clock positions and the 4­and 6-pole purity tabs together in the 12 or 6 o’clock
positions.

2. Move yoke to the maximum forward funnel position.

3. Next, switch the crosshatch generator to a red field.

4. Pull the yoke toward the rear of the CRT neck, keep­ing it centered, until a red raster is displayed.

5. If the red raster is not displayed as a pure red field,
adjust the 2-pole purity tabs until a pure field is
obtained.

6. Check for proper yoke tilt setting.

CONVERGENCE ADJUSTMENT

1. Release locking assembly .

2. Connect crosshatch generator to the receiver and
adjust static (center) convergence as follows:

a. Adjust the 4-pole static control by moving the

two tabs separately to converge the red and blue
lines horizontally. Move the two tabs together
around the neck of the CRT (in a 45° arc) from the
top-dead-center position to converge the red and
blue lines vertically.

b. After the 4-pole control has been adjusted to

superimpose the red and blue lines on top of one
another. Use the 6-pole static adjustment to place
the converged red and blue lines over the green
line. Move the two tabs together around the neck
of the CRT (in a 30° arc) from the top-dead-center
position to move the lin es vertically. Adjusting th e
two tabs separately will move the converged beam
to the left or right. Using a crosshatch generator
capable of producing individual fields, adjust the
generator to produce a red field. Use the purity
tabs to center a red stripe.

Wedges' Adhesive Tape (3)

Deflection Yoke

Purity & Convergence
Magnet Assembly Unit

6 Pole

Purity Magnet

4 Pole

Yoke's Glass Cloth Tape

Rubber Wedges (3)

SR25-3828VD0171B 3-6 CL - SERVICING

CRT Ring Location Purit

ust Tabs Beam Movement

for Convergence

Ring

Pairs

6 Pole

Convergence

R&B over G

4 Pole

Convergence

R over B

Rotation direction
of Both Tabs

Opposite

Same

Opposite

Same

Movement of Red
and Blue Be ams

B B

OR

R R

OR

R

B

B

OR

R

B

OR

B

R

B

R

R

BR

SERVICE ADJUSTMENTS (continued)

VERTICAL-TILT WEDGE ADJUSTMENT

The vertical lines at 6 and 12 o’clock are converged by
vertically tilting the yoke and inserting a wedge at the
top of the yoke until it is firmly seated between the CRT
glass and the horizontal coils.

HORIZONTAL-TILT WEDGE ADJUSTMENT

The vertical lines at 3 o’clock and 9 o’clock are converged
by horizontally tilting the yoke and inserting a wedge.

Adjust first at 4 or 8 o’clock, whichever has the larger
space, until the wedge is firmly seated between the CRT
glass and yoke coils. Then, insert the 3rd wedge in the
remaining horizontal tilt position until it is firmly seated
between the CRT glass and yoke coils. Convergence at
the 3 and 9 o’clock should be maintained during this
operation.

When the 3 wedges are firmly installed and positioned
for acceptable convergence, lock the wedges in place
by applying a 2.5 inches long strip of tape across the
tabs of each wedge firmly against the CRT glass. The
CRT glass surface should be clean and free of dust and
other foreign material.

IMPROVING CRT CORNER PURITY

CRTs that display corner purity problems even after
following the service procedures can be modified with
a picture correction kit (P/N 949-00050). The purity
can be improved by placing a picture-correction magnet
(included in the kit) on the CRT funnel. Refer to the
following modification steps and illustration to place
the magnet properly. Fully degauss the CRT before
installing correction magnets.

MODIFICATION

1. Place the magnet on the CRT funnel as shown in the
figure displayed below, in the quadrant exhibiting
impurity.

2. Rotate the magnet in place to the position shown
for best purity.

3. Place a piece of 1/2" by 2" long Fiberglass tape over
the magnet to hold it in place.

4. Degauss the CRT once magnet is in place to insure
that the magnet is not over the internal magnet
shield.

UNUSUAL TILT CASE

There may be some instances where the picture tube
and yoke will require vertical tilt in the opposite (up)
direction to obtain convergence. In such cases, insert
the vertical tilt wedge at the bottom (6 o’clock)
position. Follow through on the horizontal tilt
adjustment by using the 2 and 10 o’clock positions and
secure each wedge with a piece of tape, as described
above.

Clamp and Screw

6 Pole Magnets

2 Pole Magnets

4 Pole Magnets

Note: If the magnet is placed over the internal

magnet shield, any apparent purity
correction will disappear after degaussing.
Reposition the correction magnet off the
internal shield and degauss again.

2" To 3"

MAGNET

SR25-3828VD0171B 3-7 CL - SERVICING

MODEL PARTS

PARTS

All CL models are module level repair only. Parts contact informa­tion is below:

Voice: 1-888-3-ZENITH
Fax: 1-888-6-ZENITH
Mail: ZENITH NATIONAL PARTS
P O Box 240007
Huntsville, AL 35824-6407

Item number Part description Item number Part description

H19F34DT

4810V00739A Cabinet tray 4810V00739A Cabinet Tray
3091V00B81B Cabinet Front 3091V00B80A Cabinet Front
3809V00B08B Cabinet Rear (Back Cover Asse) 3809V00B07A Back Cover Asse (Cabinet Rear)
6140VC8003A Coil, Degausser 6140VC8003B Coil, Degaussing
6400VSNX01A Speaker, Oval, 6 X 13 cm 6400VSNX01A Speaker, Oval, 6 X 13 cm
3790V00712A Crystal Window 3790V00711A Crystal Window
3828VA0A30A Instr Book, Operation Guide 3828VA0A30A Instr Book, Operation Guide
5016V20002A Magnet Assembly, Static Convergence 5016V20003A Magnet Rubber (Magnet Assembly, Static Convergence)
6411VUH003A Power Cord Assembly Line Cord and Terminals Assembly 6411VUH003A Power Cord Assembly Line Cord and Terminals Assembly
6335V20A03A CRT Assembly with Deflection Yoke 6335V27003A CRT Assembly with Deflection Yoke
170-A01Q CPT Earth_Gnd Strap Assy, CRT 170-844G CPT Earth_Gnd Strap Assy, CRT
3141VSNC61A Keyboard Assy, 6 Key 3141VSNC61C Keyboard Assy, 6 Key
3141VMNP44A Module, Main 3141VMNP44B Module, Main
6631V25014G Connector & Cable Assembly, Speaker Interconnect 6631V25014G Connector & Cable Assembly, Speaker Interconnect
6710V00108A Space Command Transmitter (Remote Controller) 6710V00108A Space Command Transmitter (Remote Controller)
5016V20002A Convergence Helper 5016V20002A Magnet, Stick Ferrite (Convergence Helper)

H20F34DT

Item number Part description Item number Part description

4810V00739A Cabinet Tray 3091V00B80A Cabinet Front
3091V00485A Cabinet Front 3809V00B07A Back Cover Asse (Cabinet Rear)
3809V00334A Cabinet Rear (Back Cover Asse) 6140VC8003B Coil, Degaussing
6140VC8003A Coil, Degaussing 6400VSNX01A Speaker, Oval, 6 X 13 cm
6400VESU01A Speaker, Oval, 6 X 13 cm 3790V00711A Crystal Window
3790V00715A Crystal Window 3828VA0A30A Instr Book, Operation Guide
3828VA0A30A Instr Book, Operation Guide 5016V20003A Magnet Rubber (Magnet Assembly, Static Convergence)
5016V20002A Magnet Assembly, Static Convergence 6411VUH003A Power Cord Assembly Line Cord and Terminals Assembly
6411VUH003A Power Cord Assembly Line Cord and Terminals Assembly 6335V27003A CRT Assembly with Deflection Yoke
6335V20A03A CRT Assembly with Deflection Yoke 170-844G CPT Earth_Gnd Strap Assy, CRT
170-A01Q CPT Earth_Gnd Strap Assy, CRT 3141VSNC61C Keyboard Assy, 6 Key
3141VSNC61B Keyboard Assy, 6 Key 3141VMNP45A Module, Main
3141VMNP44A Module, Main 6631V25014G Connector & Cable Assembly, Speaker Interconnect
6631V25014G Connector & Cable Assembly, Speaker Interconnect 6710V00108A Remote Controller (Space Command Transmitter)
6710V00108A Space Command Transmitter (Remote Controller) 5016V20002A Magnet, Stick Ferrite (Convergence Helper)
5016V20002A Convergence Helper 6871VSMV33A PWB(PCB) Assembly, Sub Front Jack CL 25-32V

H25F34DT

H25F39DT

SR25-3828VD0171B 4-1 CL - MODEL PARTS

MODEL PARTS

Item number Part description Item number Part description

H27F34DT

4810V00739A Cabinet Tray 4810V00739A Cabinet Tray
3091V00B66A Cabinet Front 3091V00B66A Cabinet Front
3809V00332A Back Cover Asse (Cabinet Rear) 3809V00332A Back Cover Asse (Cabinet Rear)
6140VC8003C Coil, Degaussing 6140VC8003C Coil, Degaussing
6400VSNX01A Speaker, Oval, 6 X 13 cm 6401VC0134J Speaker, Oval, 6 X 13 cm
3790V00711A Crystal Window 3790V00711A Crystal Window
3828VA0A30A Instr Book, Operation Guide 3828VA0A30C Instr Book, Operation Guide
6411VUH003A Power Cord Assembly Line Cord and Terminals Assembly 6411VUH003A Power Cord Assembly Line Cord and Terminals Assembly
6335V27001A CPT Assembly with Deflection Yoke 6335V27001A CPT Assembly with Deflection Yoke
170-844J CPT Earth_Gnd Strap Assy, CRT 170-844J CPT Earth_Gnd Strap Assy, CRT
3141VSNC61C Keyboard Assy, 6 Key 3141VSNC61C Keyboard Assy, 6 Key
3141VMNP44C Module, Main 3141VMNP46B Module, Main
6631V25014G Connector & Cable Assembly, Speaker Interconnect 6631V25014G Connector & Cable Assembly, Speaker Interconnect
6710V00108A Remote Controller (Space Command Transmitter) 6710V00108A Remote Controller (Space Command Transmitter)
6871VSMV33A PWB(PCB) ASSEMBLY,SUB FRONT JACK CL 25-32V 6871VSMV33A PWB(PCB) ASSEMBLY,SUB FRONT JACK CL 25-32V

H27F39DT

Item number Part description Item number Part description

3091V00B66A Cabinet Front 4810V00739A Cabinet Tray
3809V00332A Back Cover Asse (Cabinet Rear) 3091V00B66D Cabinet Front
6140VC8003C Coil, Degaussing 3809V00332B Back Cover Asse (Cabinet Rear)
6400VSNX01A Speaker, Oval, 6 X 13 cm 6140VC8003C Coil, Degaussing
3790V00711A Crystal Window 6401VC0134J Speaker, Oval, 6 X 13 cm
3828VA0A30D Instr Book, Operation Guide 3790V00711A Crystal Window
6411VUH003A Power Cord Assembly Line Cord and Terminals Assembly 3828VA0A30C Instr Book, Operation Guide
6335V27001A CPT Assembly with Deflection Yoke 6411VUH003A Power Cord Assembly Line Cord and Terminals Assembly
170-844J CPT Earth_Gnd Strap Assy, CRT 6335V27001A CPT Assembly with Deflection Yoke
3141VSNC61C Keyboard Assy, 6 Key 170-844J CPT Earth_Gnd Strap Assy, CRT
3141VMNP45B Module, Main 3141VSNC61G Keyboard Assy, 6 Key
6631V25014G Connector & Cable Assembly, Speaker Interconnect 3141VMNP46B Module, Main
6710V00108A Remote Controller (Space Command Transmitter) 6631V25014G Connector & Cable Assembly, Speaker Interconnect
6871VSMV33A PWB(PCB) ASSEMBLY,SUB FRONT JACK CL 25-32V 6710V00108A Remote Controller (Space Command Transmitter)

6871VSMV33A PWB(PCB) ASSEMBLY,SUB FRONT JACK CL 25-32V

H27F36DT

H27F36S

Item number Part description Item number Part description

H25F36DT

4810V00739A Cabinet Tray 4810V00739A Cabinet Tray
3091V00B80A Cabinet Front 3091V00B56A Cabinet Front
3809V00B07A Back Cover Asse (Cabinet Rear) 3809V00B09A Back Cover Asse (Cabinet Rear)
6140VC8003B Coil, Degaussing 6140VC2008A Coil, Degaussing
6400VSNX01A Speaker, Oval, 6 X 13 cm 6400VSNX01A Speaker, Oval, 6 X 13 cm
3790V00711A Crystal Window 3790V00711A Crystal Window
3828VA0A30C Instr Book, Operation Guide 3828VA0A30C Instr Book, Operation Guide
6411VUH003A Power Cord Assembly Line Cord and Terminals Assembly 6411VUH003A Power Cord Assembly Line Cord and Terminals Assembly
6335V27003A CPT Assembly with Deflection Yoke 6335V32012A CPT Assembly with Deflection Yoke
170-844G CPT Earth_Gnd Strap Assy, CRT 170-797Y CPT Earth_Gnd Strap Assy, CRT
3141VSNC61C Keyboard Assy, 6 Key 3141VSNC61C Keyboard Assy, 6 Key
3141VMNP46A Modu le, Main 3141VMNP46C Module, Main
6631V25014G Connector & Cable Assembly, Speaker Interconnect 6631V25014G Connector & Cable Assembly, Speaker Interconnect
6710V00108A Remote Controller (Space Command Transmitter) 6710V00108A Remote Controller (Space Command Transmitter)
5016V20002A Magnet, Stick Ferrite (Convergence Helper) 5016V20002A Magnet, Stick Ferrite (Convergence Helper)
6871VSMV33A PWB(PCB) ASSEMBLY,SUB FRONT JACK CL 25-32V 6871VSMV33A PWB(PCB) ASSEMBLY,SUB FRONT JACK CL 25-32V

H32F36DT

SR25-3828VD0171B 4-2 CL - MODEL PARTS

MODEL PARTS

I tem number Part descripti on

H24F36DT

4810V00739A Bracket, Jack Pack
3091V00B80A Cabinet Front

3809V00B07A Back Cover Asse ( Cabinet Rear)
6140VC8003B Coil, Degaussing

5016V20002A Magnetic, Stick Ferrite ( Convergence Helper)
3790V00711A Crystal Window

3828VA0A30P I nstr Book, Operation Guide
6411VUH003A Power Cord Assembly Line Cord and Termi nals Assembly

6335V24002A CPT Assembly with Deflection Yoke
170-844G CPT Earth_Gnd Strap Assy, CRT

3141VSNC61C Keyboard Assy, 6 Key
3141VMNP46P Module, Main

6631V25014G Connector & Cable Assembly, Speaker I nterconnect
6710V00108A Remote Cont roller ( Space Command Transmi tter)

6871VSMV33A PWB( PCB) ASSEMBLY,SUB FRONT JACK CL 25-32V

H24F39DT

I tem number Part descripti on
4810V00740A Bracket, Jack Pack
3091V00B80A Cabinet Front

3809V00B07A Back Cover Asse ( Cabinet Rear)
6140VC8003B Coil, Degaussing

5016V20002A Magnetic, Stick Ferrite ( Convergence Helper)
3790V00711A Crystal Window

3828VA0A30q I nstr Book, Operation Guide
6411VUH003A Power Cord Assembly Line Cord and Termi nals Assembly

6335V24002A CPT Assembly with Deflection Yoke
170-844G CPT Earth_Gnd Strap Assy, CRT

3141VSNC61C Keyboard Assy, 6 Key
3141VMNP45K Module, Main

6631V25014G Connector & Cable Assembly, Speaker I nterconnect
6710V00108A Remote Cont roller ( Space Command Transmi tter)

6871VSMV33A PWB( PCB) ASSEMBLY,SUB FRONT JACK CL 25-32V

I tem number Part descripti on

H24F34DT

4810V00739A Bracket, Jack Pack
3091V00B80A Cabinet Front

3809V00B07A Back Cover Asse ( Cabinet Rear)
6140VC8003B Coil, Degaussing

5016V20002A Magnetic, Stick Ferrite ( Convergence Helper)
3790V00711A Crystal Window

3828VA0A30N I nstr Book, Operation Guide
6411VUH003A Power Cord Assembly Line Cord and Termi nals Assembly

6335V24002A CPT Assembly with Deflection Yoke
170-844G CPT Earth_Gnd Strap Assy, CRT

3141VSNC61C Keyboard Assy, 6 Key
3141VMNP44H Module, Main

6631V25014G Connector & Cable Assembly, Speaker I nterconnect
6710V00108A Remote Cont roller ( Space Command Transmi tter)

6871VSMV33A PWB( PCB) ASSEMBLY,SUB FRONT JACK CL 25-32V

SR25-3828VD0171B 4-3 CL - MODEL PARTS

REF DESCRIPTION H19F34DT

1

FRONT CABINET (CABINET ASSEMBLY)

3091V00B81B

2

SPEAKER (SPEAKER FULL RANGE)

6400VSNX01A

3

KEYBOARD ASSEMBLY

3141VSNC61A

4

IR LENS

3790V00712A

5

CPT & YOKE ASSEMBLY

6335V20A03A

6

REAR CABINET (BACK COVER ASSEMBLY)

3809V00B08B

7

MAIN MODULE (CHASSIS ASSEMBLY)

3141VMN P44A

8

REMOTE CONTROL

6710V00108A

Cl Commercial 19”Exploded View

1

4

3

2

7

6

5

WER
O

P

MTUE

K

HFSB

L

C

C

E

M
U
L

O
V

N L

A EC N

H

3

1

2

6

4

5

7

9

8

ENTER

0

TIMER

ALARM

CH PREVIEW

8

5-1

CL EXPLODED VIEWSR25 - 3828VD0171B

REF DESCRIPTION H20F34DT

1

FRONT CABINET (CABINET ASSEMBLY)

3091V00485A

2

SPEAKER (SPEAKER FULL RANGE)

6400VES U0 1A

3

KEYBOARD ASSEMBLY

3141VSNC61B

4

IR LENS

3790V00715A

5

CPT & YOKE ASSEMBLY

6335V20A03A

6

REAR CABINET (BACK COVER ASSEMBLY)

3809V00334A

7

MAIN MODULE (CHASSIS ASSEMBLY)

3141VMN P44A

8

REMOTE CONTROL

6710V00108A

Cl Commercial 20”Exploded View

6

5

4

7

R
E

W
O
P

E

T
U
M

B
H

S
L K
F

C

c
a

p
t
i
o
n

v
o

l

v l

o

c
h

c
h

p
o
w

e
r

2

3

1

C

M

U

O E

V L

L

E
N
N

A
H

C

3

1

2

6

4

5

7

9

8

ENTER

0

TIMER

ALARM

CH PREVIEW

8

5-2

CL EXPLODED VIEWSR25 - 3828VD0171B

Cl Commercial 24”Exploded View

REF DESCRIPTION H24F34DT H24F36DT H24F39DT

1

FRONT CABINET (CABINET ASSEMBLY)

3091V00B80A 3091V00B80A 3091V00B80A

2

SP EAK ER (SP EAK ER F U LL R ANGE)

120-C77G 120-C77G 120-C77G

3

K EYBOAR D ASSEMBLY

3141VSNC61C 3141VSNC61C 3141VSNC61C

4

WINDOW

3790V00711A 3790V00711A 3790V00711A

5

CP T & YOK E ASSEMBLY

6335V24002A 6335V24002A 6335V24002A

6

R EAR CABINET (BACK COV ER ASSEMBLY)

3809V00B07A 3809V00B07A 3809V00B07A

7

MAIN MODU LE (CH ASSIS ASSEMBLY)

3141VMNP44H 3141VMNP46P 3141VMNP45K

8

REMOTE CONTROL

6710V00108A 6710V00108A 6710V00108A

5

1

2

3

4

7

6

R

E
W
O

P

E

T

U

M

K
B

H
S
L

F

C

C

E

M
U
L

O
V

L

E

N

N

A
H
C

3

1

2

6

4

5

7

9

8

ENTE R

0

TIMER

ALARM

CH PR E VI EW

8

8

5-3

CL EXPLODED VIEWSR25 - 3828VD0171B

Cl Commercial 25”Exploded View

REF DESCRIPTION H25F34DT H25F36DT H25F39DT

1

FRONT CABINET (CABINET ASSEMBLY)

3091V00B80A 3091V00B80A 3091V00B80A

2

SPEAKER (SPEAKER FULL RANGE)

6400VSNX01A 6400VSN X01A 6400VSN X01A

3

KEYBOARD ASSEMBLY

3141VSNC61C 3141VSN C61C 3141VSNC61C

4

IR LENS

3790V00711A 3790V00711A 3790V00711A

5

CPT & YOKE ASSEMBLY

6335V27003A 6335V27003A 6335V27003A

6

REAR CABINET (BACK COVER ASSEMBLY)

3809V00B07A 3809V00B07A 3809V00B07A

7

MAIN MODULE (CHASSIS ASSEMBLY)

3141VMN P44B 3141VMN P46A 3141VMNP45A

8

REMOTE CONTROL

6710V00108A 6710V00108A 6710V00108A

5

1

2

3

4

7

6

R

E
W
O

P

TE

MU

K
B

H
S
L

F

C

C

E

MU
OL
V

L

E

N

N
HA
C

3

1

2

6

4

5

7

9

8

ENTER

0

TIMER

ALARM

CH PREVIEW

8

8

SR25 - 3828VD0171B

5-4

CL EXPLODED VIEW

Cl Commercial 27”Exploded View

REF DESCRIPTION H27F34DT H27F36DT H27F36S H27F39DT

1

FRONT CABINET (CABINET ASSEMBLY)

3091V00B66A 3091V00B66A 3091V00B66D 3091V00B66A

2

SPEAKER (SPEAKER FULL RANGE)

6400VSNX01A 6401VC0134J 6401VC0134J 6400VSNX01A

3

KEYBOARD ASSEMBLY

3141VSNC61C 3141VSNC61C 3141VSNC61G 3141VSNC61C

4

IR LENS (REMOTE CONTROLLER RECEIVER)

6712SCA227A 6712SCA227A 6712SCA227A 6712SCA227A

5

CPT & YOKE ASSEMBLY

6335V27001A 6335V27001A 6335V27001A 6335V27001A

6

REAR CABINET (BACK COVER ASSEMBLY)

3809V00332A 3809V00332A 3809V00332B 3809V00332A

7

MAIN MODULE (CHASSIS ASSEMBLY)

3141VMNP44C 3141VMNP46B 3141VMNP46B 3141VMNP45B

8

REMOTE CONTROL

6710V00108A 6710V00108A 6710V00108A 6710V00108A

1

2

3

4

5

6

R

OE

PW

T

U E

M

K

B

H

LS

F

C

C

E
M
U

L
O
V

LC N

E

N
A
H

3

1

2

6

4

5

7

9

8

ENTER

0

TIMER

ALARM

CH PREVIEW

8

SR25 - 3828VD0171B

7

5-5

CL EXPLODED VIEW

Cl Commercial 32”Exploded View

REF DESCRIPTION H32F36DT

1

FRONT CABINET (CABINET ASSEMBLY)

3091V00B56A

2

SPEAKER (SPEAKER FULL RANGE)

6400VSNX01A

3

KEYBOARD ASSEMBLY

3141VSNC61C

4

IR LENS

3790V00711A

5

CPT & YOKE ASSEMBLY

6335V32012A

6

REAR CABINET (BACK COVER ASSEMBLY)

3809V00B09A

7

MAIN MODULE (CHASSIS ASSEMBLY)

3141VMN P46C

8

REMOTE CONTROL

6710V00108A

E
W
OR

P

E

T

U

M

K

B

HF

S

L

C

C

E

M

LU

O

V

L

E

N

N

A

H

C

3

1

2

6

4

5

7

9

8

ENTER

0

TIMER

ALARM

CH PREVIEW

8

1

6

5

2

4

3

7

SR25 - 3828VD0171B

5-6

CL EXPLODED VIEW

Power Supply Circuit

1 2 3 4 5 6 7 8 9 10

G

CN4T8

366-043B

TP3900

1

TP3901

2

F

CN4R8

366-043C

TP3400

1

2

E

D-CTL

Deg-Ctl

Power Control

This schematic refers to

CL Chassis models

4920V00085A

H19F34DT

D

H20F34DT
H25F34DT
H25F39DT
H27F34DT
H27F39DT

3

ICX3612

P/L

P/L

SANKEN
STR-F6654R (19,20,25,27V)
STR-F6456R

(32V)

5

GND

4

VIN

3

D

2

S

1

TP3401

RX3400

CX3600
2200pF

2000V

8.2M
1/2W

H25F36DT

C

H27F36DT
H32F36DT

WF1

THX3902

0FS4001B51D

Type 218 004
0FS5001B51D

SLOW BLOW

Mfd by Littelfuse

Type 218 005

FH3400A
431-813A

BFD3565R2F

FB3600

125-123A

FB3601A

125-022K

PROV

CX3601

270pF

PROV

FX3400

4A 250V

250V5A

VRX3400

164-003D

CX3400

2200pF

4KV

1KV

THX3901

6322V62206A

FH3400B
431-813A

560V

SPGND
387-917F

FB3600A
125-022K
PROV

FB3601
125-123A

BFD3565R2F

(19,20V)

(25,27,32V)

CX3401

0.47

275VAC

RX3601

0.12

BRX3400

0DD560000AA

DX3602

1N4148

DX3600

EU1ZV(1)

BRX3400A

0DD260000BB

D2SBA60(STK)

RX3605

RX3606

LX3400

P/L

RX3600

56K

2W

RX3603

680

CX3602

470pF

2W

50V

RX3604

3.3K

CX3404

1000pF

1000V

CX3402

0.01

DX3601

0DD414809ED

1N4148

CX3603

220µF

35V

CX3405
1000pF
1000V

0DD414809ED

0DD100009AM

KX3900

D5SB60

+VM

RX3410

0.68
5W

THX3410

163-048D

KL15L2R5

PROV

+VM

1.8K

10

1/2W

HOT COLD

ICX3700

0ILI817000G

141-018E

DG12D1-O(M)
12V

+VM

CX3415
P/L
250V

HOT

TX3601

6170VMCA042

LTV817M

WF1

416 V

5.00 µS

B

WF2

20.4 V

2.50 µS

CX3604

470pF

CX3605

100pF

50V

50V

A

ICX3500

0ILI817000G

LTV817M

HOT COLD

10

12

14

17

16

4 1

3

4 1

3

COLDHOT

0TR322809AA

COLDHOT

COLD

6

5

9

8

7

2

4

3

2

C

A

2

QX3900

KTC3228-0

FX3610

0FS3001A282

SLOW BLOW

MFD BY BELL FUSE

Type MS3

FB3611

125-123A

BFD3565R2F

FB3611A

PROV

125-022K

FX3613

0FS3001A282

SLOW BLOW
MFD BY BELL FUSE
Type MS3

RX3700

1.5K
1/2W

ICX3701
P/L
P/L

R

QX3500

0TR102009AB

KRC102M

+12
VSB

DX3900
0DD414809ED

1N4148

C

B

E

125V3A

DX3611A

0DD410000AD

FX3612

0FS3001A282

125V3A

SLOW BLOW

MFD BY BELL FUSE

Type MS3

125V3A

RX3701

1.5K

1/2W

CX3701

220pF

50V

+12
VSB

RX3500

1.5K
1/2W

C

E

RX3900

4.7K

125-022K

RU4AM

FB3613

0.273µH

6200JB8011R

+12
VSB

10K

10K

FB3610

1µH

CX3702

RX3702

CX3621

470pF
1000V

4921V00N11V

0DRON00182A

408-002E

0.047
50V

560K

B

DX3611

MUR860

RX3501

2.2K

+VL

CX3850
1000µF
35V

CX3620

470pF
1000V

DX3610

0DD420000BB

D4L20U

FB3612

0.273µH

6200JB8011R

CX3623

470pF
1000V

DX3613

0DD420000BB

D4L20U

VE

RX3706
P/L
1%

RX3705
JUMPER

0.1%

RX3704
162K

0.1%

RX3703

3.57K

0.1%

+8V

SW

CX3611
220µF
160V

CX3851

0.1
50V

0DD420000BB

+12
VSB

RX3710

12K

1%

RX3716

1.6K
1%

+14
VSB

CX3622

470pF
1000V

DX3612

D4L20U

+12VSB

+12
VSB

LM2675N-ADJ

7

+14VSB

CX3610
1000µF
35V

RX3611
100K
1/2W

CX3613
1000µF
16V

ICX3870

0ICTMNS001A

INPUT

GND

6

RX3850

1.6K
1%

VE

VE

LX3833

220µH

+VL

RX3711

22K

1%

FB

150-C02F

S F

150-C02F

CX3612
1000µF
35V

CX3703

0.1

50V

LX3611

82µH

LX3612

82µH

R

ON/OFF

1

CB

OUTPUT

+14V

VSB

SF

+12

HDR

RX3712
22K
1/2W

C

A

8

54

CX3852

0.1
50V

0TR102009AB

+VL

+VL

+12HDR

ZDX3710

0DZ510009AB

5.1V

MTZ5.1B

ICX3710

0ICTMFA001A

KA431LZ

CX3853

0.01
50V

4

123

RX3851

15K

1%

RX3610

EBC

RX3511

10K RX3512

QX3505

KRC102M

B+

B+

CX3801
100µF
160V

+12
VSB

LX3820

S F

150-C02F

1/2W

WF2

DMX3851
0DRON00198A
MBRD835LT4

8.2K
1/2W

2.2K
1/2W

C

E

82µH

RX3713

B

RX3717
120K

QX3510

0TR104600AB

KTA1046YU

10K

10K

RX3830

2.2
2W

CMX3830

FRX3840

1/2W

VE

6.8K
5W

C

E

RX3852
10
1/2W

CX3854
470pF
50V

+14VAUD

+14V

AUD

B

RX3810

2.2
2W

RX3820

P/L
2W

0.1

16V

5.6

RX3714

6.8K
5W

QX3711
0TR233009CA
KSC2330-Y

LX3851

47µH

RX3505

2.2K
1/2W

ICX3830

0IMCRKE001A

KIA78R08PI

IN

RX3832

10K

LX3840

RX3715
68K
1/2W

DX3800

0DR150009EA

RGP15J

CMX3810

0.1

16V

8V

GND

CTL

GND

CTL

220µH

CX3840

470µF

16V

CX3855
470µF
16V

+8V

SW

OUT

RX3831

4.7K

IN OUT

+9V

SW

LX3852

S F

82µH

150-C02F

DX3801

0DR150009EA

RGP15J

ICX3810

4921V00163A
0IMCRKE002A
408-002F
KIA78R09PI

CTL

CTL

RX3811

2.2K

1/2W

+8V

SW

+8VSW

CX3831
470µF
16V

ICX3840

0IKE780500P
KIA78L05BP(AT)

GND

GND5V150mA

FRX3815

D-CTL

RX3815

2.2
2W

5.6

1/2W

CMX3815

+13V

OUTIN

GND

GND

RX3812

ZDX3826

3.6V

MTZ3.6B

0DZ360009DA

ZDX3821

5.1V

MTZ5.1B

0DZ510009AB

CMX3835

CX3841
220µF
10V

0.1

16V

AUD

6.8K

1/2W

16V

0.1

VSB

CX3856
470µF
16V

+13VAUD

1/2W

1/2W

5V

150mA

+5

+5VSB

+11
LSP

+11LSP

RX3853
10K
1/2W

+9VSW

ZDX3810

0DZ180009BE

18V

GDZJ18B

ICX3835

0IKE780500P
KIA78L05BP(AT)

IN OUT

GND
GND

ICX3816

0IKE780500P

5V

150mA

KIA78L05BP(AT)

IN OUT

0IKE7805001

KIA78R05PI

CTL

CTL

RX3816

P/L

DEG-CTRL

+9V

SW

CX3811
470µF
16V

1/2W

+8.7
VSB

PWR-CTRL

GND
GND

ICX3815

OUTIN

GND

GND

+8.7VSB

5V

+35V

CX3822
220µF
16V

+5V

CX3836
220µF
10V

SW

+5VSW

+5V
TNR

CX3816
P/L
10V

+5VTNR

SR25-3828VD0171B

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.

6-1

ALL SYMBOLS WITH “M” IN THE DESIGNATOR
INDICATE SURFACE MOUNTED COMPONENT.

Main Micro Circuit

1 2 3 4 5 6 7 8 9 10

G

TP6005

CM1245

PROV

50V

4.7µF
50V

CAMPORT-SENSE

VERT-DRIVE

HORZ-SIZE

FASTBLANK

IR-DATA

DEG-CTRL

TU1240

6700NFNS06E

LG-TAEM-H001P

11

10

9

8

7

6

5

4

3

2

1

W1250

PROV

CM1247

0.1
16V

SYNC

FLYBACK

AGC

SCL
SDA

AFC

IF

R

G

B

IF

NC

33V

NC

5V

5V

SDA

SCL

AS

NC

AGC

AGC

C1248

0.01
16V

FASTBLANK

HORZ-SIZE

IR-DATA

DEG-CTRL

CTRL-F/R

CTRL-TV/AUX

PWR-CTRL

CM1242

50V

CM1244

PROV

50V

TP6011

R

G
B

IF

TP6010

TP6004

SCL

SDA

TP6012

C1246

SHUTDOWN

Y/C-SENSE

PWR-CTRL

Power Control

D-CTL

Deg-Ctl

F

Luma (Micro)

V-SYNC

V-Sync

H-SYNC

H-Sync

SIGNAL-METER

H-SYNC

V-SYNC

V-SYNCV-SYNC

AFC

SYNC

CAMPORT-SENSE

H-SYNCH-SYNC

IF

+5V

SBF

L6004

1µH

L6005

1µH

R6016

+5V

SBF

RM6069

CM6036
1000pF
50V

1K

R6015

1K

470K

RM6070
470K

CM6061

47pF

50V

E

This schematic refers to

CL Chassis models

H19F34DT
H20F34DT
H25F34DT
H25F39DT

CN2K6

366-921D

C6035

PROV

1

2

3

4

5

TP6015

RM6053

RM6006

1K

1.5K

RM6002

RM6058

PROV

CM6043

1K

+5V

0.01
25V

SBF

CM6001

PROV

50V

CM6002

D6002
PROV

RM6090

1K

SBF

RM6061

CM6042

1.6K

0.01
25V

CM6058

+5V

H27F34DT

D

C

B

A

H27F39DT
H25F36DT
H27F36DT
H32F36DT

WF16

- V

50.0 mS

WF16A

- V

100 mS

WF17

- V

40.0 µS

WF18

- V

2.50 mS

WF19

- V

25.0 µS

WF20

- V

100 mS

WF21

- V

50.0 µS

WF22

1.47 V

25.0 µS

IR-DATA

CTRL-Y/C

0TR945009AA

KSC945C-Y

MUTE

Y-MICRO

Q6005

+8V

SW

W6002

971-16

+5V

SBF

C

E

RM6076

2.2K

CN2P6

366-921A

1

2

R6026

10K

ZD6002

L6007

4.7µH

RM6080

0DZ910009AJ

C6098

1M

4.7µF

1/2W

50V

MTZJ9.1B

C6006

JM6033

470

CM6010

20pF

9.1V

50V

1µF

50V

TP6000

+5V

SBF

+5V

CM6009

JUMPER

SBF

CM6037
220pF
50V

RM6020

5.1K

B

RM6075

1K

PROV

50V

47pF

50V

CM6003

RM6031

CM6008
560pF
50V

+5V

SB

CM6093

47pF

470pF

50V

1K

CM6005

220pF

RM6034

CM6011

20pF

WF17

0

50V47pF

50V47pF

CM6097

8MHz

C6013

220µF

RM6032

15K

CM6007

1000pF

50V

+5VSBF

10V

+5V

SBF

WF22

CM6090

RM6009

1.5K

SHIELD 4814V00347A

1

2

3

4

5

7

8

9

10

11

50V47pF

12

14

15

16

17

18

19 34

20

21

22

23

24

25

26 27

CM6012

0.01
25V

IC6000

HSYNC

VSYNC

AFC

SHUTDWN

Y/C-SENSE

SIGNAL
DETECT

A/D_KEY2

A/D_KEY1

SIGN-MTR

CAMPORT
SENSE

Y/C-SW

N.C.

N.C.

MUTE

REMOTE

N.C.

N.C.

AVcc

HLF

RVCO

VHOLD

CVIN

CNVSS

XIN

XOUT

VSS

P/L
P/L

HORZ-SIZE

DEG-CTL

FRONT/
REAR IN

OSC-OUT

SP1
DOUT

SPI-DIN

TV/AUX

SCL1

SCL2

SDA1

SDA2

IDENT

MPI
DAout

MPI
DAin

POWER

RESET

OSC-IN

SP1
CLK

N.C.

Vcc

FB

N.C.

N.C.

52

R

51

G

50

B

49

CM6099

RM6035

CM6014

27pF

50V

CM6017

47pF

50V

0.1
16V

1M

CM6051

47pF

50V

+5V

SBF

CM6038

47pF

50V

CM6053

47pF 50V

CM6094

47pF 50V

CM6041

47pF 50V

CM6050

47pF 50V

CM6049

47pF 50V

CM6048

47pF 50V

CM6047

47pF 50V

IC6002

0IKE704200B

KIA7042P(AT)

48

476

46

45

44

43

42

41

4013

39

38

37

36

35

33

32

31

30

29

28

RM6017

WF18

CM6059

50V47pF

CM6060

47pF

50V

CM6079

47pF

50V

50V

CM6091

CM6092

R6027

2.2K

CM6040

180pF

50V

470pF 50V

50V

TP6001

WF19

CRY6001

156-A01P

1M

50V

L6001

4.7µH

WF21

CM6023

47pF

CM6095

47pF

50V

+5V

SBF

RM6014

100K

CM6052

47pF

50V

RM6044

CM6018

CM6045

1000pF

4700pF

50V

50V

CRY6002
PROV

L6002

RM6059

4.7K

1.8µH

WF16A WF16

RM6037

27K

VCC OUT

GND

GND

50V

220

RM6036

CM6054

47pF

50V

+5V

R6043

220

RM6042

220

R6041

220

CM6015

C6016

2.2µF
50V

CM6024

6.8K

SBF

CM6046

47pF

50V

27pF

50V

47pF

50V

+5V

SBF

R6013

CM6019

CM6056

RM6038

3.3K

CM6055
47pF
50V

RM6046

4.7K

100

180pF

50V

RM6060

TP6002

0.01
25V

4.7K

CM6025

47pF

50V

CM6033

9

10

RM6052

100

RM6040

100

RM6045

4.7K

+5V

SBF

D6001
0DD414809ED
1N4148

TP6003

47pF

50V

876

RM6051

100

RM6047

4.7K

IC6001

0IAL240800A

AT24C08

CN10VGA1

387-A10C

L6003

1µH

5

RM6048

4.7K

+5V

SBF

C6020

4.7µF
50V

CM6080

PROV

2

3

4

R6007
470K

1

2

3

R6011

100

R6039

220

CM6021

0.01
25V

8

7

6

54

1

RM6049

220

WF20

RM6050

220

+11
LSP

0DZ330009DF

GND

387-917F

+5V

SBF

RM6072

4.7K

50V

C1240

220µF
16V

ZD1240

MTZJ33B

D-CTL

+33V

C1241

33V

1µF

6800pF

50V

1/2W

+5V
TNR

L1240
33µH

CM1243

0.01
25V

RM1240

RM1241

470

470

TP6007

6

TP6006

5

TP6013

4

TP6014

3

TP6008

2

TP6009

1

CN4G9
366-921E

SR25-3828VD0171B

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.

6-2

ALL SYMBOLS WITH “M” IN THE DESIGNATOR
INDICATE SURFACE MOUNTED COMPONENT.

Deflection Circuit

1 2 3 4 5 6 7 8 9 10

G

WF3

1.47 V

20.0 µS

WF4

1.06 kV

F

20.0 µS

WF5

31.5 V

20.0 µS

Vertical

E

Horizontal

ABL

HORZ-SIZE

This schematic refers to

CL Chassis models

H19F34DT

D

H20F34DT
H25F34DT
H25F39DT
H27F34DT
H27F39DT
H25F36DT

C

H27F36DT
H32F36DT

HORZ-DRIVE

FLYBACK

B

A

SHUTDOWN

ABL

VERT-DRIVE

VNFB

VERTICAL-ABL

RM3250

WF3

WF6

4.52 V

5.0 µS

WF7

58.6 V

5.0 µS

WF8

26.1 V

5.0 µS

+5V

SBF

10K

C3260
PROV
50V

R3261
PROV

R3262

68K

R3251

10K

C3250

4.7µF
50V

R3252

10K

Q3250

0TR322809AA

KTC3228-0

R3260

C3209

+215V

CX3208

10µF

350V

CX3007

470pF
500V

DX3006

0DR150009EA

RGP15J

PROTECT

GND\VEE

RX2105

2.2
1/2W

CX2105

0.22
50V

+215V

CX3003

10µF

50V

0DR150009EA

RX3208

2.7

1/2W

C2112

470pF

500V

DX2104

0DR150009EA

RGP15J

B+

TP3000 TP3001

PUMPTHERMAL

UP

VCC

54321 76

DX2101

RGP15J

CX2102

220µF

35V

CX2115

0.47
50V

RX3209

RX3008

3.3K
1/2W

RX2115

0.47

15K

1W

RX3013

ZDX3004

1/2W

5.1V
0DZ510009AB

MTZ5.1B

CX3004

ICX2100
4921V00N11U
0ISA784500AA
4920V00008D
LA7845

+28V

470pF
500V

DX3201

RGP15J

0DR150009EA

CX3207

PROV
250V

5.6K
1%

RX3022

150K

10µF

50V

C2104

0.1
50V

CX2110

0.22
50V

B

E

C KSA733C-Y

RMX3009
30K

QX3251
QX3251
0TR104600AB
KTA1046YU
E B C

R2123
10K

TX3204

P/L

2

6

7

5

9

1

3

RX3015

1K
1%

RX3016

P/L
1%

QX3002
0TR733009AA

RX2108
15K

RX2113

3.9K

RX2106

1/2W

HVSD
CIRCUIT

RX2110
15K

RX2114
82K

1K

F.BLK.GND

RX2107

RX2112
P/L
1/2W

+28V

1/2W

HV

FOCUS

G-2

ABL

C2103

4.7µF
50V

1K

11

8

RX2125

1/2W

CX2109
2200µF
25V

RX2111
P/L
1/2W

1K

CX2108

0.022
100V

CN2C5A

P/L

CN3Y3

4

3

2

TP3203

P/L
2W

P/L

P/L

CX3217

P/L

400V

560µH

5.6µF
50V

C3202
470pF
500V

RM3213

0

TP3202

RX3215

S F

1K
1W

S F

WF8

QX3251
0ISA784500AA
LA7845
ICX2100

CX3205
100µF
25V

C3203

0.022
50V

B

TP3204

DX3203

RGP15J

E

C

R3203

C

RM3202
47

150-717J

QX3251
4921V00N11U
0TR104600AB
4920V00008D
KTA1046YU

+12
HDR

300

2W

RX3214

LX3262

LX3201

CX3251

R3258

1.8K

C3255

4.7µF
50V

R3253

1/2W

B

R3255

220

2.7K

1.2K

+35V

CM3201

RM3201

C

E

47pF

50V

RM3257

220K

1K

CX3218

2.2µF
160V

RX3256

4.3K

0TR945009AA

0DR150009EA

TP3200

B

B

Q3201 E

KSC945C-Y

1

CX3215
470pF
500V

CX3252

0.012
630V

TP3201

RX3206
PROV

R3204

560

1/2W

C

Q3202
0TR322809AA
KTC3228-0

E

CX3216

P/L

1600V

R3205

560
1/2W

366-043D

CX3256

0.018
630V

+12
HDR

DX3250

0DD410000AC

RU4DS

RX3207
P/L
1/2W

TX3205

6170VC0008A

1 6

3 4

C3204
2200pF
500V

DX3251
0DR150009EA
RGP15J

C3206
2200pF
500V

CX3210
P/L
2KV

CX3211
PROV
2KV

W3203
971-16

QX3203
P/L
P/L
4920V00010H
P/L

B

LX3202

125-123A

PROV

+35V

+35V

RX3216

WF4

CX3212
P/L
2KV

CX3213
P/L
50V

C

E

W3202

P/L

1

2

3

4

+33V+33V

P/L

2W

RX3211

1/2W

WF5

W10

RX3212

1K

PROV

DX3204
0DD414809ED
1N4148

RX3210A

P/L
2W

RX3210B

15

1/2W

+28V

+25V

RX2124

0.47

RMX3017

4.7K

C2106

1000pF

500V

CX3253

47µF

+5V

SBF

C

E

1/2W

+35V+35V

50V

B

WF7

CX2114

330µF

50V

1

WF6

R2118

120K
1/2W

CX3254

470pF
500V

DX3252

0DR150009EA

RGP15J

QX3001
0TR945009AA
KSC945C-Y

RMX3021

1K

R2119
120K
1/2W

RX2117

3.9K

SR25-3828VD0171B

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.

6-3

ALL SYMBOLS WITH “M” ON THE DESIGNATOR
INDICATE SURFACE MOUNTED COMPONENT.

Video Processor Circuit

1 2 3 4 5 6 7 8 9 10

SIGNAL-METER

+5V

SW

COMP-AUD

+8.7

VSB

L2207

10µH

W2201

PROV

D2205

0DD414809ED

1N4148

VERTICAL-ABL

L2601

10µH

EXT-AUD

Y-MAIN

+5V

SW

+5V
TNR

C-MAIN

+8V

Y-MICRO

AGC

SW1

SIF

TV

+8V
ABL

ABL

+8VSW1

C2601
47µF
16V

TP2

0.01
25V

CM1226
PROV
50V

GND

VIDEO OUT

R IN

3900pF

CM1213

A

57

VIF GND

FAST BLK

24

R2231

GND

CM1214

50V

0.1
16V

56

SIF GND

CLOCK CTRL

25

100

RM1211

1K

A

RM1230

470

51

52

53

54

55

VIF VCO FB

SDA

26

27

FM DIRECT OUT

SCL

R2232
100

28

EXT AUDIO IN

P-ON CTRL

AUDIO BYPASS

FSC OUT150Y SW OUT

29

FSCFSC

AUDIO OUT

CHROMA APC FILTER

VIDEO/CHROMA GND

MCU RESET

30

+8V
RM1212
12K

GND

A

C1216

47µF

16V

C1215

RM1219

P/L

1µF

50V

49

OUT

5.7V REG

LIMITER IN

8.7V REG OUT

INTERCARRIER OUT

Cr IN

Cb IN

Hi Vcc

AUDIO ATT FILTER

VREG Vcc

TV/Y IN

VIDEO/CHROMA Vcc

DRIVE Vcc

EXT/C IN

DRIVE GND

X-TAL 3.58

ACL/ABCL

MCU 5.7V

REG OUT

32

31

+8V

SW

C2220

47µF

16V

GND

B

L2602

JUMPER

SW

L1206

10µH

C1218

CM1217

100µF

0.1 CM1225
16V

JM1202

P/L

((((((

((

CM2235

CM2234

RM1222

10K

RM1221

16V0.1

16V0.1

10K

R1220

3.3K

16V

GND

A

U1203
6200C000026

4.5MHz

SFSH4.5MDB

48
47
46
45
44

W1201
PROV

42
41
40

WF14

C2228

50V1µF

B

JM1200

PROV

GND

E

RM1224
P/L

C

Q1203
0TR959009AA
BF959

E

RM1223
470

C2231

1µF

50V

GND

R1215

220

CM2232

E

39
38

L2202

10µH

RM2622

3.3K

37
36
35
34
33

CM2216

CM2223

GND

0.015

E

+8V

SW1

GND

B

50V

CM2222

120pF
50V

RM2234

100

Q2204

0TR733009AA

KSA733C-Y

B

RM2609

4.7K

C

E

RM2611

RM2612

CRY2201

3.579MHz
156-A01B

CM2217

0.01

25V
+8V
ABL

+8VABL

0.1

16V

GND

B

RM2608

10K

C2604

100µF

16V

RM2607

4.7K

GND

E

GND

E

RM2236
47

E

C

GND

B

RM2238

750K

Q2601
0TR945009AA
KSC945C-Y

C2608

47µF

16V

+8V

SW1

4.7K

4.7K

C2224

0.47
50V

RM2249

8.2K

GND

E

RM2239

RM2237

B

10K

GNDBGND

RM2610
10K

D2601

0DD414809ED

1N4148

+8V
ABL

1M

WF15

C2218
22µF
16V

B

D2602

0DD414809ED

1N4148

RM2613

L1208
10µH

WF15

580mV

10.0 µS

0.01
25V

GND

CM2226

CM2225

0.1

16V

D2203

0DD414809ED

1N4148

C2219

P/L
50V

RM2614

B

10K

R2620

10K

RM2621

E

PROV

GND

C2233

47µF

0.01
25V

470

CM1224
120pF
50V

L1204

18µH

U1202

4.5MHz
6200C000027

TPS4.5MB9

A

16V

GND

GNDEGND

19"/20"
25"
27"/32"

GND

B

+8V

SW1

E

C

47pF
50V

RM1216

L2204

10µH

E

C2227

47µF

16V

516K

3.9K

3.3K

RM2235

18K

PROVISION

C2609

100µF

16V

Q2602
0TR733009AA

KSA733C-Y

B

CM2612
470pF
50V

STEREO ONLY

U1204
6200C000026

4.5MHz

SFSH4.5MDB

100

0TR945009AA
KSC945C-Y

+8V

SW

E

RM2244R2243
JUMPER

100
47

RM2245

0TR733009AA

GND

B

RM2616

910

C

E

Q1202

WF14

1.044 V

10.0 µS

L2203

10µH

10K

Q2206

KSA733C-Y

+8V

SW1

C2610

47µF

16V

RM2615
330

Q2604

0TR945009AA

KSC945C-Y

B

RM1217

CM2236

+5V

SW

16V

0.1

22

CM2240

+8V
ABL

E

C

GND

RM2617
10K

RM2618

4.7K

C

E

RM1218
470

GND

A

GNDEGND

0.01
25V

RM2240
1K

RM2241
270

B

B

C2215

1µF

50V

CM1211

0.01
25V

CM1210
PROV
50V

E

GNDEGND

R2242

B

+8V

SW1

C

E

RM2619
470

R1213

39K

SIFSIF

C1212
47µF

16V

GNDAGND

C2237
100µF
16V

C2241
47µF
16V

E

R2243
P/L
1/2W

100
1/2W

C2221

0.01
100V

GND

B

CM2602

Q2603
0TR945009AA
KSC945C-Y

RM2233

JUMPER

L2206

220µH

0.01
25V

L1205

A

RM2244

P/L

+8V

SW

10µH

G

61

VIF AGC FIL2

VIF APC FILTER

0ICTMMI044A

B IN

V PULSE OUT

21

20

16V0.1

50V47pF

CM1209

585960

RF AGC OUT

ICM2200

M61250FP

G IN

23

22

GND

D

RM1210

220

CM1206

0.01
25V

C1205

0.22
50V

VIF IN(2)

HVCO FEED BACK

17

R2222

100

CM2210

0.01
25V

CM2211

16V0.1 CM2213

RM2230

10K

GND

VIF IN(1)

INT MON

A

CM1208
22pF
50V

626364

VIF AGC FIL1

INV FBP OUT

194318

16V0.1CM2212

CM2214

B

D

C2201

50V

GND

+5V

SW

RM2228

1µF

B

680

RM1209
10K

GND

C1207

R2221

RM2229

D

0.47

1M

50V

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16

680

GND

GND

GND

A

V RAMP CAP

AFT OUT

VIF Vcc

SIF Vcc

RAMP OUT

V RAMP F/B

AFC FILTER

DEF GND

LOGIC GND

FBP IN

H OUT

DEF Vcc

NC

R OUT

G OUT

B OUT

A

A

GND

+5V

SW

D

+8V

SW

CM1204

1000pF

50V

CM1223

0.01
25V

A

GND

RM2217

GND

CM2205

B

GND

B

2.2K

+8V

SW

R1225
PROV

CM1220
1000pF
50V

CM2203

0.01
25V

B

47pF

50V

CM2207

RM2224

4.7K

R2226

JUMPER

L1202

100µH

6200C000028

GND

A

GND

0.01
25V

RM2209

2.2K

GND

C

RM2213

2.2K

GND

C

GND

C

U1201

M1962M

B

CM2209

GND

B

RM2223

4.7K

RM2225

4.7K

RM2227

GND

A

R2203

10K

0.01
25V

GND

RR

GG

BB

680

GND

A

GND

GND

B

RM1207
100

GND

A

RM2202

6.8K

L2201

10µH

R2210

220

R2214

B

RM2204

220

RM1208

R1226

GND

C2208

47µF

100

1K

C2204

1µF

50V

15K

16V

R2218

220

RR

Red

Blue

BB

Green

F

GG

Chroma (C-IN)

IF

RM1201

100

GND

A

CM1201

1000pF

50V

RM1203

RM1202

Luma (Y-IN)

Composite Video IF

SIFSIF

Sound IF

E

((((((

((

Composite Audio

ABL

Luma (Micro)

FSCFSC

Subcarrier Signal

IF

D

Vertical

Horizontal

V-SYNCV-SYNC

V-Sync

H-SYNCH-SYNC

H-Sync

C

This schematic refers to

CL Chassis models

H19F34DT
H20F34DT
H25F34DT
H25F39DT

B

H27F34DT
H27F39DT
H25F36DT
H27F36DT

AFC

VERT-DRIVE

VNFB

FLYBACK

HORZ-DRIVE

+8V

CN2C5B

P/L

WF11

5.18 V

10.0 µS

SYNC

H-SYNC

V-SYNC

B

G

R

FASTBLANK

0DD414809ED

47µF

16V

H-SYNC

D2201

1N4148

+8
VID

GND

RM2208

+8VID

C

RM2216

WF11

WF12

1.55 V

10.0 µS

+5V

SW

2.7K

1K

RM2212

0TR733009AA

WF9

V

10.0 µS

WF13

40.8 V

10.0 µS

RM2206

4.7K

WF13

SW

L2205

10µH

C2230

WF9

5

4

3

2

GND

1

C

+8
VID

1.5K

390

WF10

5.26 V

10.0 µS

CM2238

1000pF

50V

RM2251

3.9K

GND

B

2.7K

WF10

GND

C

KSA733C-Y

RM2220

V-SYNC

CM1203

GND

A

+5V

SW

WF12

0TR733009AA

KSA733C-Y

GND

C

Q2202

2.7K
GND

0.01
25V

RM1204

100

CM1202
1000pF

L1207

10µH

RM2201

39K

+8V

R2207

+8
VID

E

C

GND

C

GND

A

50V

GND

RM1227

PROV

SW

RM2250
82K

1K

Q2201

RM2215
470

C

0TR733009AA

KSA733C-Y

0.82µH

A

CM2202

B

L1201

B

+8
VID

E

C

PROV

50V

RM2211
470

GND

C

Q2203

GND

A

C

E

RM1205
33

RM1206
22

GND

A

CM1221

16V

C1222

47µF

B

+8
VID

E

C

Q1201
0TR959009AA
BF959

0.1

16V

GND

B

+8V

SW

RM2219
470

GND

C

H32F36DT

SDA

SCL

A

FSC

SR25-3828VD0171B

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.

6-4

ALL SYMBOLS WITH “M” ON THE DESIGNATOR
INDICATE SURFACE MOUNTED COMPONENT.

Audio Processor Circuit

1 2 3 4 5 6 7 8 9 10

G

F

Audio In R

R1401

100

R1402

100

A1R

A1L

Audio In L

Aux1-R

Aux1-L

SCL

SDA

E

A2L

Aux2-L

A2R

Aux2-R

A3L

Aux3-L

A3R

Aux3-R

SIF

Sound IF

D

C1400

3.3µF
50V

CM1401

0.01
25V

RM1400

10K

IC1401

0IFA753307A

KA7533ZTA

VCCOUT

GND

CM1402

0.01
25V

+5V
TNR

L1400
15µH

C1403
220µF
10V

CM1404
1000pF

50V

CM1405

470pF

50V

This schematic refers to

CL Chassis models

H19F34DT
H20F34DT

C

H25F34DT
H25F39DT
H27F34DT
H27F39DT

AUDIO-AMP-RIGHT

C1408

47µF

16V

0TR733009AA

H25F36DT

Q1400

E

C

RM1404

3.9K

+9V

SW

H27F36DT
H32F36DT

B

AUDIO-AMP-LEFT

0TR733009AA

KSA733C-Y

A

Q1401

KSA733C-Y

B

FRX3813

5.6

1/2W

+8.1V

AUD

RM1406

220

RM1403

3.9K

E

C

0DR150009EA

RM1405

B

CM1407
2200pF
50V

DX3813

RGP15J

220

CM1406
2200pF
50V

+8.1V

AUD

IC1400

0IMCRMN013A
MSP-3425G

1

2

3

4

5

7

8

9

10

11

12

14

15

16

17

18

19 34

20

21

22

23

24

25

26 27

+8.1VAUD

CX3813
220µF
16V

XTAL_OUT

XTAL_IN

NC

D_CTR_I/O1

D_CTR_I/O0TPNC

ADR_SEL

STANDBYQ

I2C_CL

I2C_DA

I2S_CL

I2S_WS

I2S_DA_OUT

I2S_DA_IN1

ADR_DA

ADR_WS

ADR_CL

DVSUP

DVSS

I2S_DA_IN2

NC

RESETQ

NC

NC

VREF2

DACM_R

DACM_L

NC

TESTEN

ANA_IN-

ANA_IN+

MONO_IN

VREFTOP

SC1_IN_R

SC1_IN_L

SC2_IN_R

SC2_IN_L

CAPL_M

AHVSUP

SC1_OUT_L

SC1_OUT_R

AVSUP

AVSS

NC

NC

AGNDC

AHVSS

NC

VREF1

NC

NC

CM1409

2pF

0.01
25V

C1418

0.47
50V

CM1413
1000pF
50V

CM1410

C1420

3.3µF
50V

CM1424
1000pF
50V

50V

2pF
50V

CM1414
470pF
50V

C1419

0.47
50V

CM1412

56pF
50V

C1416
10µF
16V

W2804

CM1421

P/L

0.01
25V

C1425
100µF
16V

C1415
100µF
16V

W2800

W2803
W2804

L1402

L1403

15µH

MTS

OMIT
ADD OMITJM2801
OMIT
OMIT

15µH

+5V
TNR

+8.1V

AUD

FRONT JACKS

ADD
OMIT
OMIT
ADD

SIFSIF

Q1402

0TR945009AA

KSC945C-Y

NOMONO MONO

FRONT JACKS

OMIT

ADD
OMIT

RM1409

RM1407
10K

C

B

E

R1408

1K

10K

52

51

50

49

48

476

46

45

44

43

42

41

4013

39

38

37

36

35

33

32

31

30

29

28

C1422

10µF
16V

CRY1400
156-A02M

18.432MHz

CM1411

56pF
50V

CM1417

CM1423
470pF
50V

+8.1V

AUD

CM1425

0.01
25V

C1426
47µF
16V

0ISA722200A

IC2800

LA7222

A3RA3R

A3LA3L

12

11

10

9

CH-2

8

7

6

5

4

CH-1

3

2

1

JM2801

P/L

+9V

SW

W2800

P/L

C2807
100µF
16V

R2812

2.2K

R2802

2.2K

R2803

2.2K

C2800

1µF
50V

W2803

C2801

P/L

1µF
50V

R2800
PROV

R2801
PROV

A1RA1R

A1LA1L

A2LA2L

A2RA2R

SR25-3828VD0171B

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.

6-5

ALL SYMBOLS WITH “M” ON THE DESIGNATOR
INDICATE SURFACE MOUNTED COMPONENT.

A/V Switch Circuit

1 2 3 4 5 6 7 8 9 10

33

4.7K

CHROMA-COMB

Y/C
INPUT

IN

OUT

OUT

CTRL-TV/AUX

AUX-RIGHT-Y/C

AUX-LEFT-Y/C

AUX-RIGHT-VID

AUX-LEFT-VID

NO
COMB

CV-COMB

LUMA-COMB

NO Y/C
INPUT

C-MAIN

Y-MAIN

CTRL-Y/C

CTRL-F/R

OUT

IN

INOUT

IN

INOUT

INOUT

C2474

JM2471

JM2901

JM2902

JM2903

JM2904

WITH
COMB

180pF

4.7µH

270pF

G

Q2902
0TR945009AA
KSC945C-Y

Q2901
0TR945009AA
KSC945C-Y

CM2473

L2471

RM2471

RM2473

CM2472

CM2907
PROV
50V

A3L

Aux3-L

A3R

Aux3-R

Luma-Comb (Y-IN)

F

Chroma-Comb (C-IN)

Luma Rear (Y-IN)

Chroma Rear (C-IN)

Luma (Y-IN)

Chroma (C-IN)

E

Composite Video IF

Composite Video
“Comb-Filter”

TV

CAMPORT-SENSE

Y/C-SENSE

MATRIX/SPEAKER-OUT

R2930

2.2K

R2911

22K

R2912

22K

R2909

R2910

22K

22K

+9V

SW

CM2911

PROV

50V

+9V

SW

L2900

10µH

+9V
SWF

+9VSWF

C2900
100µF
16V

C2474

10µF

50V

JM2471

P/L

CM2483

P/L
25V

RM2472

0

CM2482
P/L
50V

L2471

P/L

RM2473

4.7K

CM2472

PROV

50V

L2481
P/L

CM2473

RM2482
PROV

P/L
50V

CM2481

P/L
50V

CM2471

100pF

50V

RM2471

RM2481

100

P/L

Composite Video
“Rear”

Composite Video
“Camport”

D

M-OUT

Matrix-Speaker
Out

A1R

Aux1-R

A1L

Aux1-L

Composite Video

C

Switch

This schematic refers to

CL Chassis models

H19F34DT
H20F34DT
H25F34DT

B

H25F39DT
H27F34DT
H27F39DT
H25F36DT
H27F36DT
H32F36DT

JP1

P/L

MATRIX
OUT

Y/C
IN

RIGHT
IN

LEFT
IN

VIDEO
IN

RIGHT
IN

LEFT
IN

C2905

10µF

JM2903

C2910

PROV

JM2904

P/L

CM2906

0.1

16V

50V

50V

P/L

23

M-OUTM-OUT

24

11

Y

C

10

7,

12

9

C2805

17

16

22

15
14

13

18

21

19

20

8

6

5

4

3

2

1

A1LA1L

A3LA3L

A3RA3R

A1RA1R

R2810
PROV

R2808
PROV

R2906
75

R2806
PROV

R2804
PROV

1µF

50V

C2804

1µF

50V

R2905

47

C2802

1µF

50V

C2803

1µF

50V

R2811

6.8K

R2809

6.8K

R2805

2.2K

ZD2800

PROV

ZD2903
0DZ910009AJ

9.1V

MTZJ9.1B

1/2W

R2807

2.2K

R2902
75

R2904
75

R2901

47

R2903

47

ZD2901
0DZ910009AJ

1/2W

9.1V

MTZJ9.1B

ZD2902
0DZ910009AJ

1/2W

9.1V

MTZJ9.1B

CN4B8

366-921G

IC2901
0ISA722200A

R2917
1K

LA7222

12

11

10

9

CH-2

8

7

6

5

4

CH-1

3

2

1

C2909

PROV
50V

C2901

10µF

50V

1

2

3

4

5

6

7

8

R2907

100

R2908
75

AUD-LEFT-FRONT

AUD-RIGHT-FRONT

ZD2904
0DZ910009AJ

9.1V

MTZJ9.1B

C2904

10µF
50V

1/2W

+9V

SWF

C2903

10µF
50V

R2916

1K

10µF
50V

C2902

R2926

+9V

SWF

1K

IC2902
0ISA722200A

LA7222

12

11

10

9

8

7

6

5

4

3

2

1

CH-2

CH-1

Y/C
MODELS
ONLY

RM2925

RM2919

10K

10K

RM2924

100

C2908

RM2918

100

PROV

50V

JM2902

P/L

JM2901

P/L

+9V

SWF

C

B

E

RM2923
0

RM2922
1K

+9V

SWF

C

B

E

RM2920
0

RM2921
1K

A

SR25-3828VD0171B

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.

6-6

ALL SYMBOLS WITH “M” ON THE DESIGNATOR
INDICATE SURFACE MOUNTED COMPONENT.

MPI Card Circuit

1 2 3 4 5 6 7 8 9 10

G

+5V

SBF

R4995M

C

E

E

C

R4986M

22K

10K

R4991

4.7K

R4987

3.3K

Q4903

121-1311A

Q4906

121-1310A

B

+5V

SBF

R4993

10K

R4994M

22K

C4967

220pF

50V

R4997

10K

MPI

078-3481-01

Q4905

121-1310A

B

R4990

4.7K

R4989M

220

C

B

E

Q4904

121-1310A

R4992

220

C

E

C4966

220pF

50V

C4965

220pF

50V

PROV

+11V

W12VRJ11

1

2

3

4

5

6

11E1

58-661

1

F

E

This schematic refers to

2

3

4

5

6

7

8

9

10

11

+11V

IR_DATA

GND

GND

+11V

MPI_DATA_IN

MPI_DATA_OUT

+5V

SBF

C4946

100uF

16V

CL Chassis models

H19F34DT
H20F34DT
H25F34DT
H25F39DT

D

H27F34DT
H27F39DT
H25F36DT

R4982

470K

+5V

SBF

R4984

1K

R4983

1M

R4996

470

R4985M

470

B

H27F36DT
H32F36DT

C

B

6E2

58-661

1

2

3

CLONESENSE_PTY_SELECT

4

5

6

MPI_DATA_OUT_BUFFERED

7

8

9

10

11

BUFFER_IR_DATA

RJ11_PIN4

MPI_DATA_IN_BUFFERED

A

SR25-3828VD0171B

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.

6-7

ALL SYMBOLS WITH “M” ON THE DESIGNATOR
INDICATE SURFACE MOUNTED COMPONENT.

Video Output Circuit

1 2 3 4 5 6 7 8 9 10

G

DAG1

DAG

215

VDC

2

R5126

1/2W

220K

R5129

1.2M

1/2W

R5124M

8.2K

C5101

1uF

350V

2

WF45

4.60V

20 uS

L5102

125-022K

1uH

1

2

FILAMENTOS

1K

1/2W

R5107

BLUE

RED

G1

G1

G2

2

6

RED

BLUE

2

10

9

8

7

5

4

11

12

G2

1

1

2

CRT1

6620VBC003A

2

GREEN

G2

7

6

5

4

3

8

9

G2

1

1

CRT2

6620VBA003A

2

45

WIRE TO SWEEP

2

1K

0

C

E

0

WF

R5115

1/2W

1K

GREEN

FILAMENTOS

R5123

1K

1/2W

C5104

0.01

2KV

215

VDC

R5127

1K

1/2W

C5111

470pF

500V

2

R5125

Q5104

121-1140A

-0.4
B

WF43

1.73V

20 US

F

E

5C2

P/L

RED

9

8

7

D

6

5

4

3

2

1

C

This schematic refers to

CL Chassis models

44

WF

GREEN

BLUE

1

+9V

SW

2

215

VDC

470

R5114

3.0V
D5105

103-279-04A

1

H19F34DT
H20F34DT
H25F34DT
H25F39DT

B

H27F34DT

WF44

4.60V

20 uS

H27F39DT

W5102

P/L

W5104

P/L

C5107

WF

43

R5103

150K

1/2W

R5101M

1K

R5102M

47

R5105

W5100

C5102M

220PF

50V

P/L

R5117M

1K

C5118M

220PF

50V

R5108M

C5105M

220PF

50V

R5118M

1K

R5109M

47

47

R5112

150

1/2W

R5119

150K

1/2W

R5120

150

1/2W

W5103

P/L

16V

220uF

1/2W

RX5104

12K

2W

128.2

B

R5105M

RX5111

B

R5112M

126.7

B

3.69

R5120M

128.5

3.6

PROV

3.65

PROV

PROV

C

Q5101

0TR322900AA

E

C5103M

470pF

50V

R5106M

470

12K

2W

C

Q5102

0TR322900AA

E

C5106M

470pF

50V

R5113M

470

C

Q5103

0TR322900AA

E

C5109M

470pF

50V

R5121M

470

4.0

150

R5110

150K

1/2W

4.0

4.0

BLUE

AMP

RX5122

GREEN

AMP

RED

AMP

12K

2W

L5100

120uH

20-03907-25A

H25F36DT
H27F36DT
H32F36DT

D5102

103-344-06

C5110

0.1

50V

A

SR25-3828VD0171B

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.

6-8

ALL SYMBOLS WITH “M” ON THE DESIGNATOR
INDICATE SURFACE MOUNTED COMPONENT.

Edge Card Circuit

1 2 3 4 5 6 7 8 9 10

G

F

CON1

P078-3571

1

E

D

2

3

4

BUFFERED_MPI_DATA_OUT

5

6

7

8

9

10

BUFFERED_IR_DATA_OUT

11

CLONESENSE/PTY_SELECT

+11V

PS_GND

MPI_DATA_IN

SPI_DATA_OUT

SPI_DATA_IN

SPI_CLOCK

+5VBA

CON2

+5VBA

Y-IN

C-IN

P078-3571

1

2

3

4

5

6

7

8

9

10

11

BUFFERED_IR_DATA_OUT

CLONESENSE/PTY_SELECT

MPI_DATA_IN

BUFFERED_MPI_DATA_OUT

C

2VGA8

This schematic refers to

CL Chassis models

H19F34DT
H20F34DT
H25F34DT
H25F39DT

B

H27F34DT
H27F39DT
H25F36DT
H27F36DT
H32F36DT

58-593-10

RED_VIDEO_IN

BLUE_VIDEO_IN

10

9

8

7

6

5

4

3

2

1

GREEN_VIDEO_IN

VIDEO_GND

HORIZONTAL_SYNC

VERTICAL_SYNC

SYNC_GND

Y/C_GND

DATA_GND

1E11

P078-3571

1

2

3

4

5

6

7

8

9

10

11

2E6

P078-3571

1

2

3

4

5

6

7

8

9

10

11

PS_GND

BUFFERED_MPI_DIN

MPI_DOUT

SPI_DATA_OUT

SPI_DATA_IN

SPI_CLOCK

DATA_GNDDATA_GND

IR_DATA_OUT

+11V

+5VBA

1VGA10

58-542-10

1

2

3

4

5

6

7

8

9

10

A

SR25-3828VD0171B

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.

6-9

ALL SYMBOLS WITH “M” ON THE DESIGNATOR
INDICATE SURFACE MOUNTED COMPONENT.

Audio Amplifier Circuit

1 2 3 4 5 6 7 8 9 10

G

+14V

AUD

TP800

C802

IC800

4921V00N11Q

C813

100µF

16V

RM822

1.8K

RM813

150

RM823

150

F

C811

AUDIO-AMP-RIGHT

Audio Out R

AUDIO-AMP-LEFT

Audio Out L

E

Audio In R

10µF
50V

C821

10µF

50V

RM811

3.9K

RM821

3.9K

RM812

1.8K

TP1404

CM822

2200pF

50V

CM812
2200pF
50V

Audio In L

0ISA426100A
4920V00010

LA4261

3

1

2

5

C823

100µF
16V

6

4

STEREO AUDIO AMPLIFIER

CM801

0.01
25V

9 10

GND

1000µF
25V

GNDGND

TP801 TP802

78

GND

C814

R814

50V

C815

470µF
25V

0.1

3.3

GND

TP804

R831

1/2W

CN9S4

366-921C

1

2

3

4

R830

1/2W

15

GND

15

M-OUTM-OUT

M-Out

((((((

((

Composite Audio

D

This schematic refers to

CL Chassis models

H19F34DT

MUTE

R801

2.2K

B

H20F34DT

C

Q800

0TR945009AA

E

KSC945C-Y

GND

R800

330

C800

100µF

25V

C824

0.1

50V

GND

R824

3.3

TP805

GND

C825

470µF

25V

TP803

CN9M4

366-921B

1

2

3

M-OUTM-OUT

MATRIX/SPEAKER-OUT

H25F34DT
H25F39DT

C

H27F34DT
H27F39DT
H25F36DT
H27F36DT

MONO AUDIO AMPLIFIER

H32F36DT

+13V

AUD

GND GND

C829
470µF
25V

IC801

5

678

GND GND

2W

1

0ICTMSG002A

TDA7267

2

GND

GND

4

3

CM830

C828

0.1
50V

0.01
25V

B

C826

10µF

50V

RM825

3K

CM827

5600pF

50V

RM826

4.7K

COMP-AUD

((((((

((

A

SR25-3828VD0171B

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.

6-10

ALL SYMBOLS WITH “M” ON THE DESIGNATOR
INDICATE SURFACE MOUNTED COMPONENT.

Comb Filter Circuit

1 2 3 4 5 6 7 8 9 10

G

W2450

P/L

F

+8V

SW

FSC

Subcarrier Signal

E

D

Chroma Comb(C-IN)

Luma Comb (Y-IN)

Composite Video
“Comb Filter”

This schematic refers to

CL Chassis models

H19F34DT

CV-COMB

CM2400
PROV
50V

R2400

CM2401

12pF
50V

RM2401

22K

L2400

1K

CM2402
27pF
50V

22µH

CM2403
27pF
50V

H20F34DT
H25F34DT

L2405

10µH

RM2402

2.7K

RM2403

100

C2414
47µF
16V

Q2400
0TR945009AA
KSC945C-Y

B

C

E

RM2404
1K

CM2404

0.01
25V

CM2405

0.01
25V

C2406

1µF
50V

CM2407

0.01
25V

H25F39DT
H27F34DT
H27F39DT

C

B

H25F36DT
H27F36DT
H32F36DT

WFFSC

3.584 Mhz

50.0 nS

JM2451

JM2452

JM2453

WITH
COMB

OUT

OUT

OUT

OUT IN

NO
COMB

+5V
CMB

L2401

100µH

INJM2450

IN

IN

C2409
47µF
16V

+9V

SW

CM2408
PROV
50V

FRX3820

5.6
1/2W

+5V
CMB

L2403

100µH

IC2400

0ICTMTO004A

TC90A45P

AVSS

VRB

3

VRT

4

ADIN

5

BIAS1

6

TEST

7

UIHER

8

DVDD

5V

150mA

IN OUT

CMX3820

0.1

16V

ICX3820

0IKE780500P
KIA78L05BP(AT)

GND

GND

CM2411

0.01
25V

AVDD

YOUT

BIAS2

COUT

BIAS3

VFIL

CVIN

DVSS

161

152

14

13

12

11

10

9

CX3821
220µF
10V

CM2426

0.01
25V

+5V
CMB

C2412
47µF
16V

RM2405

820

+5VCMB

RM2406

100

CM2418

0.01
25V

CM2416

180pF

50V

CM2417

0.01
25V

JM2451
P/L

WFFSC

RM2412

100

COMB FILTER MODELS ONLY

C

Q2402

B

PROV

E

JM2453

0

RM2413
PROV

Q2401

C

PROV

B

0

CM2415

120pF

50V

E

RM2411
PROV

RM2419

JM2452

RM2410

6.8K

RM2414

0

+8V

10µH

10µH

+8V

SW

SW

FSCFSC

NO
COMB

RM2416

RM2417

RM2407 180

JMP

820

WITH
COMB

390

750

220

LUMA-COMB

CHROMA-COMB

FSC

L2402

C2410
47µF
16V

C

L2407

CM2419
PROV
50V

R2418

4.7K

CM2422
PROV
50V

971-16

L2406

JUMPER

CM2420
PROV
50V

CM2423
PROV
50V

0

RM2415

100

RM2409

100

B

B

RM2407

Q2403
0TR945009AA
KSC945C-Y

E

RM2416
P/L

RM2417
P/L

Q2404

C

0TR945009AA
KSC945C-Y

E

P/L

RM2408
820

NOTE: FOR NO-COMB MODELS

JUMPER

OMIT

CM2424
PROV
50V

L2404

C2413
47µF
16V

CM2421
PROV
50V

W2450, RM2412, JM2453,
RM2414, L2407, JM2451,
JM2452, RM2410, L2406
RM2413, CM2422, CM2423,
RM2411, CM2419, CM2420,
Q2401, Q2402

A

SR25-3828VD0171B

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.

6-11

ALL SYMBOLS WITH “M” ON THE DESIGNATOR
INDICATE SURFACE MOUNTED COMPONENT.

Block Diagram

1 2 3 4 5 6 7 8 9 10

G

11V

VIDEO
OUT

1.2Vp-p

8.7V

MCU VDD
5V

RESET
to MCU

F

32

WHITE

CONTRAST

CLK CONT

VCXO

34

RESET

BLUE
BACK

RGB

MATRIX

fsc

OUT 1

30

P-ON-ON

CONTRAST

29

49 28

47

5.7V

8.7V

VIDEO/CHROMA

GND

35

36

5V

BPF

1Vp-p

60

REF

FILTER

55

VCO
ADJ

TAKE OFF

2538

CLOCK

CONTROL

VIF

VIDEO

AFT

VIDEO
MUTE

62 61

IF AGC

AFT OUT

MUTE

DL

TIME

DL

TIME

SW

DELAY ADJ

RF AGC

OUT

SAW

E

D

This schematic refers to

CH Chassis models

H19F34DT

IF IN

AFT
OUT

ACL/ABCL

VIF
IN

59

63

64

2

45

46

33

H20F34DT
H25F34DT
H25F39DT

C

H27F34DT

Y-SW OUT

31

NC

NC

GAMMA

BLACK STRETCH

BLACK

STRETCH

SHARPNESS

Y SW

LPF

RF AGC

GAMMA

AMP

DEFEAT

CLAMP

VIDEO

TONE

DELAY

H27F39DT

F. TRAP

H25F36DT
H27F36DT
H32F36DT

B

LPF

CHROMA

X2

41

TV IN/Y IN

1Vp-p

TRAP

VIF VCO ADJ

VCO

VIDEO

DET

APC
DET

DET

ADJ

ACC

HPF

CHROMA

EXT IN/C IN

58

US/JPN

LOCK

DET

DEMODULATOR

TINT ANGLE

42

KILLER

DET

ACC
DET

CHROMA

APC

DET

5.7Vreg

KILLERB

VIDEO/CHROMA

Vcc

5V

COLOR

403937

3.58 MHz

POWER ON
CONTROL

BRIGHT

BRIGHT

HVCO ADJ

VCO

ADJ

17

Vcc 8V

Vcc 5V

SYNC
SLICE

from MCU

SYNC

DEP

INV

19

FBP

INV

OUT

HPF

50

10

FBP

IN

INTER
CARRIER
OUT

DRIVE

R

DRIVE

AMP

ELIMINATE

48

LIMITER

EQ

AFC I

7

LIMITER
IN

B

5V

4

VIF Vcc

R EXT

INPUT

G EXT
INPUT

B EXT

INPUT

V SYNC

TRIG

BGP
GEN

AFC GAIN

3

Hi Vcc

FM

DET

44

57

VIF GND

56 52

MUTE

CLAMP

GRB

CUT OFF

V. COINB

I I VCO

54 53

AF

AMP

FM

VERTICAL

COUNT DOWN

NORIZONTAL

COUNT DOWN

98

DEF
GND

DIRECT OUT

AUDIO SW

HV

BLK

V. SHIFT

H STOP

AFC 2

I I

COINCI.

H COINB

EXT AUDIO IN

SERVICE SW

V. RAMP

V. SIZE

11

H. OUT PUT

43

ATT

ATT

BUS

I/F

Intelligent

Monitoring

Intelligent Monitoring

I I-pHASE

51

26

27

24

23

22

21

14

15

16

V. OUT

5

6

20

V. PULSE

OUT

1

18

NC

13

12

DEF
Vcc

AUDIO

OUT

SDA

SCL

FAST BLK

R IN

G IN

B IN

R

G

B

VERTICAL

8V

OUT PUT

DY

A

SR25-3828VD0171B

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER ìXî IN TH EIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.

6-12

ALL SYMBOLS WITH ìMî ON TH E DESIGNATOR
INDICATE SURFACE MOUNTED COMPONENT.

PCB Layout Top

CN4G9

SETUP

CN10VGA1

TO
EDGE
CARD

W91

CN2C5B

TO
VIDEO
OUTPUT

PH1

LX3852

TO KEYBOARD

W60

RX3853

CX3856

IC6001

W6002

Q2603

E

C

C2215

B

C2610

E

C

Q2601

B

C2604

W90

W89

W88

C2228

C2230

W53

L2401

L2404

C2413

E

C

Q2901

B

E

C2908

C

Q2902

B

R2926

R2930

C2910

D6001

C2608

W67

W66

W65

W64

L2602

W63

EB

Q2203

E

Q2202

EB

Q2201

R2418

B

E

Q2404

W44

OUT

C6016

C2609

E

D2602

D2601

C2227

L2203

C2241

W62

R2222

L2205

C

B

C

C

C2409

L2406

C

Q2401

L2481

W46

W49

W45

W43

W42

IC2902

W40

R2904

R2903

W59

EB

C6020

W86

C6013

L6003

VCC

IC6002

GND

C

B

Q2604

B

Q2602 E

W95

C

C2601

L2601

W92

W93

C2237

C2231

C2224

CRY2201

R2231

R2232

R2221

R2218

R2207

L2201

R2214

R2210

W56

W58
W57

W137

IC2400

B

C

E

Q2402

C2474

W48

W51

W47

W41

C2905

W39

R2901

ZD2902

ZD2901

C6098

Q6005

C

CRY6001

SHIELD

W87

R6039

L6002

R2620

L2204

C2233

U1203

C2208

R2203

C2406

C

B

C

E

L2471

R6013

CRY6002

R6011

R6007

W97

W96

W98

W2201

L2207

L2206

C1215

W1201

C1216

U1201

1

C2201

R1226

C1222

W61

R1225

L1207

C2204

Q1202

D2201

W55 L6007

E

Q2400

B

L2400

R2400

L2403

C2412

W2450

B

CX3821

C

L2407

E

Q2403

ZD2904

C2904 C2901

R2916

IC2901

C2909

C2902

W38

W83

R2917

W94

R2902

JP1

CN2K6

1

04

C6006

R6027

R6041

R6043

W99

W100

L1206

C1207

B C

E

W70

L1204

U1202

B

C

E

L1205

L2405

C2414

C2410

R2907
R2908

W37

1

L60

R6015

R6026

R6016

W101

W102

W103

W106

L1208

C

C1218

B

Q1203

U1204

R1215

W72

C1205

L1201

L1202

Q1201

W71

W74

W68

W69

C1212

W54

TU1240

W134

OUT

ICX3820

GND

L2402

IN

W52

W50

C2903

W36
W34

R2912

R2911

L2900

C2900

ZD6002

W104

R2226

R3251

W105

E

C1426

FRX3820

W133

R2812

CN4B8

R2909

ZD2903

L6005

C6035

D6002

IC6000

C3250

W109
W110
W107

W108

W11

R1213

W81

W77

L1240

ZD1240

C1246

GND

W143

IC2800

W26

W27

ZD2800

R2803

W35

TO

R2910

FRONT

R2905

R2906

W146

QX3001

TO LED
BOARD

W113

W111

W12

W112
W118

W82

W73

W78

W76

W75

W145

W79

W2804

C1241

W2803

JACK

G32

W127

E

C

L6001

B

OUT

ICX3840

CX3841

W131

W128

W129

CX3822

CX3836

CN2P6

1

R1220

W130

W85

R1408

W124

W84

Q1402

C

EB

W32

CRY1400

C1419

W30
W29

R801

E18

C1240

C813

W33

C2807

W2800

C2801

C2800

R2801

R2800

R2807

C2803

C2805

R2810

R2806

LX3851

CX3855

AK

IN

GND

CX3840

RX3820ZDX3826

IN

GND

OUT

ICX3835

W80

GNDOUTINCTL

CX3811

CTL

FRX3815

GND

IN

RX3816

RX3815

W122

L1402

W31

W28

W140

IC800

Q800

R2802

C826

R2811

R2805

R2809

C2802C2804

R2808
R2804

ZDX3821

GND

OUT

OUT

CX3816

B
C
E

ICX3810

IN

ICX3816

ICX3815

DX3813

C1415

R1401
R1402

C1400

R800

C828

R831

RX3810

FRX3813

W121

IC1401

C821 C811

IC801

CX3612

LX3840

CX3831

IN

RX3811

RX3812

C1416C1418C1420

VCC

GND

OUT

C800

DX3801

W150

W125

B

CX3813

W21

C823

R830

RX3851

RX3852

CX3854

1

CX3850

W132

FRX3840

RX3831

G28

GNDOUT

CTL

RX3832

W135

ICX3830

CX3613

W126

E

C

G24

QX3505

K

CX3620

RX3610

RX3505

G23

CX3610

RX3512

RX3511

G22
QX3510

W136

L1403

IC1400

C1403

Q1401

B
C
E

C802

W23

E16E17

DX3800

C829

W14

R824

C825

C1248

AGC
CHECK

FB3610

G25

Q1400

1

B

RX3850

LX3820

E

B
C

E

W1250

DX3613

G27

A K

G26

C
G21

W119

C1425

L1400

C824

CX3852

RX3830

A

G29

3A

125V

3A

A

E26

W25

W120

C1408

E19

W22

R814

C814

R2242

1

CN9M4

TO SPEAKERS

ICX3870

G33

C

RX3712

CX3853
CX3851

A

LX3612

RK

RX3611

G31

1

DX3612

CX3622

K

G30

E31

FB3612

_A_V

FX3612

FX3613

125V

3A

_A_V

CX3623

125V

_A_V

DX3610

DX3611

A

K

ZDX3810

W116

RX3216

C1422

L2202

D2203

W142

C

Q2204

C2219

C815

C

R2118

R2119

FB3613

FX3610

E27

W139

FB3611

CX3621 FB3611A

DX3611A

W19

W115

W117

LX3611

W123

CX3004

W24

W144

C2220

CX3007

C2218

Q3250

EB C

R3252

B

R3255

E

C3260

R3260

R3261

D2205

R3262

EB

Q2206

R2123

R2243

CX2102

CN9S4

E30

E29

E28

G20

RX3016

RX3015

RX3022

RX2117

6870VM7786F

B

E

RX3717

ICX3710

CX3703

RX3714

RX3711

RX3716

TX3601

G17
G16

RX3008

ZDX3004

RX3013

E14 E15

CX3003

DX3006

RX3256

B

C

QX3251

E

C3255

1

CX2105

ICX2100

C2104

DX2101

W7

26-JUNE-2003

ZDX3710 QX3711

W138

G34

G35

RX3710

W141

E32

E33

E34

G18

G19

CX

CX3611

CX3801

C

EB

LX3833

W20

R3203

W15
W147

W16

W13

E12

W8

C2106

RX2125

E10 E11

E8

RX3715

RX3706

G36

RX3713

QX3500

B

C

E

G37

RX3501

RX3605

DX3602

FB3600

FB3601

CX3601

03

0

4

RX3900

W114

G15

W17

W18

QX3002

CX3251

C3202

CX3254

DX3204

DX3252

R3253

E13

CX2108

RX2105

G1

RX2110

C2103

RX2108

W6

E9

ICX3701

RX3500

RX3701

R

A

CX3701

K

ICX3500

1

COLD

HOT

CX3605

RX3606

CX3604

DX3601

CX3602

FB3600A

G14

Q3201

C

CX2115

OCP/FB

G38

G39

ICX3612

GND

RX3601

FB3601A

CX3600

G40

E35

E36

LX3201

G13

CX3217

LX3262

G12

CX3218

E

B

C

B

E

Q3202

C3203

RX3207

RX3206

R3205

R3204

TO

CX3253

RX3212

VIDEO
OUTPUT

W4

R3258

RX2106

RX2107

CX2109

RX2115

X2114R

RX2113

RX2111

RX2112

RX2124

CX2114

COLD

RX3705

RX3704
RX3702

RX3700

COLD

CX3702

ICX3700

1

RX3604

RX3603

S

D

G41

VIN

CX3603

W148

W149

5CX341

E22

W3203

G11

RX3214

DX3203

C3204

CX3205

W10

W9

CX3207

RX3211

RX3210B

C2221

CX2110

C2112

RX3400

RX3703

HOT

E39 E40

E37

HOT

COLD

G10

G9

E20

RX3210A

W5

DX2104

HOT

DX3600

W2

RX3215

TX3205

W3202 LX3202

E21

RX3209

TX3204

(1)

(19/20V)
250V
4A

FH3400B

R

X

3

4

0

0V

G58 G59

G56

RX3600

G54

RX3410

+

G47

G46

E38

G45

KX3900

E23

CX3215

E

G8

C

C3206

B

RX3208

CN2C5A

E5

E1
E2

G60

THX3410

W1

G44

G43G42

E25

QX3203

CX3210

E6 E7

LX3400

+

W3

FX3400

_A_V

G61

BRX3400

G50

~ ~

DX3251

DX3250

E24

C3209

DX3201

(25/27/32V)

250V

5A

SPGND

FH3400A

CX3401

TO A.C. INPUT

G57

G55

G53

G52

G51

~

G49

G48

~

CX3404

1

THX3902

G5

DX3900

G6

CX3252

G7

G3

CX3216

CX3211

G2

CX3208

CX3213

CN4R8

CX3402

-

-

BRX3400A

CX3405

CN4T8

THX3901

G4

TO DEGAUSSER

HOT

COLD

C

QX3900

E B

CX3256

CN3Y3

CX3212

TO DEFLECTION YOKE

E3E4

SR25-3828VD0171B

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.

6-13

ALL SYMBOLS WITH “M” ON THE DESIGNATOR
INDICATE SURFACE MOUNTED COMPONENT.

DEGAUSSER

HOT

COLD

V-DY

V-DY

CN3Y3

H-DY

1

H-DY

AC-INPUT

CN4R8

BRX3400A

CN4T8

1

B

C

E

SPGND

-

-

CX3405

QX3900

1

~

~

CX3212

1

CX3402

1

THX3901

CX3256

CX3216

GND

FH3400A

~

CX3404

THX3902

DX3900

CX3252

CX3213

COL

FX3400

LX3400

~

CX3211

TX3204

+25V

CX3401

BRX3400

»

DX3251

C3209

W3

+

DX3250

+215V

»

ABL

V

R

+

W1

KX3900

CX3210

CX3208

DX3201

FOCUS
GND

X

34

THX3410

»

CX3215

HEATER

0

0

C3206

+

»

B+

C

+36V

NC

GND

HOT

400BFH3

RX3410

QX3203

B

RX3208

PCB Bottom Layout

CM6037

RM2225
RM2227
RM2224

W106

RM2228
RM2223
RM2229

C

E
B

R1215

CM1203

RM1208

RM1203

RM1204

W74

TU1240

W50

W133

R2812

C2903

R2909

R2911

NC

L6004

RM6020

RM1224

Q1203

JM1200

W72

W71

RM1201

CM1242

CM1243

CM1244

CM1245

W134

GND

CM2911

GND-VID

W103

L1208

RM1222

CM1211

RM6006

RM1206

W68

ICX3820

W52

ZD2904

+

GND-VID

RM6009

RM6090

13

40

RM6045

W102

RM1221

+

2CM120

RM1202

U1202

RM1216

RM1218

W54

L2900

GND-VID

RM6047

RM1205

C1212

W101

W69

+

R2907

R2908

7RM601

6061
RM

R6026

RM6053

CM1224

RM1207

B

CM1221

+

CM1210

L2405
C2414

L2402

»

W37

W36

W34

+

-VIDGND

RM6070
1

CN2K6

RM6031

W100

CM1217

+

RM1211

+

E

W70

L1204

RM1217

L1205

R2400

CM2400

CX3821

C2900

1

GND-VID

RM6069

IC6000

RM6072

W99

W2201

L1206

JM2

Q1201

RM1227

R1226

Q1202

B

C

E

+

CM2401

L2403

W2450

JM6033

CM6061

+

R6039

C1215

CM1208

CM1204

C

W61

CM2423

C2410

RM2414

RM2416

R2916

1

C2909

W94

L6007

C6006

R6013

W98

RM1219

RM1210

+

+

U1201

CM1223

C1222

RM2201

R1225

03CM24

CM2402

CM2422

CM2424

CM2471

CM1226

C
E

+

R6011

L2207

+

W83

RM6080

C6098

RM6060

R6007

L2206

RM1230

RM2202

L1207

D2201

W55

RM2402

RM2401

+

Q2403

B

RM2471

+

IC2901

+

RM6035

W1201

CM1209

RM1209

C2201

+

+

CM2202

»

L2400

RM2403

C2904

+

R2917

CM6025

CM6024

26

27

W97

RM2621

L2204

CM1213
CM1214

CM1206

1

CM1220

CM2203

RM2206

RM2404

C

RM2415

RM2417

+

W38

CM6023

B

RM6034

CRY6001

W96

RM6038

IC

M

220

C2208

+

RM2204

CM2238

E

B

16

C2412

RM2412

L2407

CM2473

CM2472

CM6038

CM6095

RM6075
CM6009

CM6014

RY6002C

R2620

RM6052

CM2235

0

RM2251

M2205C

RM2250

Q2400

1

RM2405

C2902

R2902

CM6055

CM6054

C

W59

CM6012

W87

L6002

RM6059

RM6040

RM6051

CM2232

C2233

U1203

+

RM2208

+

C2406

JM2451
B

C

E

Q2402

RM2473

C2901

W41

CM6053

E
RM6076

+

W95

RM6014

W92

+

CM2209

JM2453

RM2482

L2471

W51

»

R2901

Q6005

C6013

VCC

Q2602

CM2612

RM6044

RM6048

W93

CM2234

+

JM1202

CM2223

CM2211

CM2207

RM2217

L2201

W56

RM2413

+

RM2472

+

C2905

ZD2901

CM6052

W86

RM6037

L2601

RM6046

+

CM2236

CM2222

IC2400

RM2411

C2474

JM2904

M6051
C

W60

CM6017

GND

Q2604

RM2613

C2601

RM6042

C2237

CM2212

R2218

RM2213

R2214

RM2209

R2210

W58

W57

W137

RM2406

E

JM2471

W47

IC2902

»

W39

CM6041

CM6094

C6020

L6003

IC6002

OUT

C

CM2602

+

C2227

+

L2203

CM2210

CM2417

B
C

CM2482

W48

JM2903

ZD2902

+

EB

EBC

C2241

+

17CM22

CM2213

R2221

CM2483

W40

CM6050

RX3853

8

+

+

CM2240

C2224

RM2234

W62

Q2202

RM2212

B

Q2201

8

9

W49

W42

R2903

CM6048

CM6049

1

CM6021

C6016

C2609

RM2614

D2602

RM2611

CM2226

RM2249

R2231

R2232

Q2203

BC

C2409

JM2452
RM2410

L2481

C2908

W45

W43

R2904

CM6047

CM6019

+

+

»

»

D2601

RM2612

W88

W64

CRY2201

L2602

W63

R2222

L2205

EBC

E

C

E

+

CM2411

CM2415

RM2409

RM2918

W46

+

CM2906

CM6046

CX3856

»

D6001

RM2615

+

C2610

RM2610

RM2216

RM2211

RM2215

CM2404

CM2405

RM2419

B
C

E

W44

+

IC6001

4

RM2616

RM6049

C2608

RM2617
RM2618

RM2609

RM2608
RM2607

W67

W66

RM2219

CM2426

L2401

R2418

CM2420

Q2901

1

C2910

CM6015

CM6018

CM6056

CM6099

CM6045

1

CN10VGA1

CM6080

5

RM6050

W6002

E

Q2603

RM2233

W91

C

B

RM2619

+

E

C2215

C

Q2601

B

RM2622

+

C2604

W90

W89

W65

CM2225

1

CN4G9

+

+

C2230

C2228

CN2C5B

W53

1

RM2220

8V

GND

B-OUT

G-OUT

R-OUT

CM2418

CM2408

CM2416

CM2407

CM2481

RM2481

CM2419

CM2421

RM2407

RM2408

RM2921

L2404

+

CM2907

RM2920

C2413

Q2404

JM2901

E

RM2919

RM2922

C
B

B

E

C

Q2902

R2926

RM2923

R2930

JM2902

RM2924

RM2925

PH

COLD

RX3705

RX3400

RX3703

RX3700

ICX3700

»

DX3600

RX3600

RX3604

OCP/FB

ICX3612

VIN

RX3603

S

GND

+

W2

RX3706

RX3704

RX3702

R

A

CX3701

CX3702

K

1

COLD

HOT

RX3606

CX3604

CX3602

D

RX3601

CX3603

RX3715

QX3500

B

X3713
R

C

RX3701

ICX3701

RX3500

E

RX3501

1

ICX3500

CX3605

DX3602

»

»

DX3601

FB3600A

FB3600

FB3601

CX3600

CX3601

605RX3

FB3601A

ZDX3710

RX3714

W138

RX3710

W141

18

TX3601

HOT

10

W148

W149

+

0X3

CX3415

C4

0

HOT

C3202

»

+

CX2108

W6

DX3252

C2103

RX2110

R3253

RX2105

W20

W17

QX3002

»

RX2125

+

RX3900

W18

E B

R3203

W15

W147

W16

W13

CX3254

W8

C2106

RX2108

W114

CX3801

C

COLD

Q3202

CX3218

RM3213

RX2106

RX2107

RX2113

C

RM3202

W4

RX2112

E

B

Q3201

R3258

RX2115

RX2111

RM3201

B

C
E

CX3253

CX2109

CX2115

CX2114

CM3201

+

LX3201

CX3251

RX3206

DX3204

+

W3203

E

LX3202

LX3262

RX3215

W3202

TX3205

»

DX3203

RX3214

C3204

CX3217

C3203

RX3207

+

R3205

CX3205

1

CN2C5A

215V

GND

RX3209

W10

HEATER

W9

RX3211

RX3210A

C2221

C2112

R3204

RX3212

CX3207

RX3210B

RX2114

CX2110

»

DX2104

W5

RX2124

»

+

CX3003

RX3256

QX3251

RM3257

1

ICX2100

RMX3009

B
C
E

+

»

QX3711

B

E

RX3717

RX3711

RX3716

COLD

9

W139

CX3611

+

+

»

+

DX3006

R3255

C3255

C3260

R3260

R3261

R3262

CX2105

RX2117

R2123

C2104

DX2101

W7

6870VM7786F

CX3703

1

LX3611

CX3004

LX3833

W24

ZDX3004
RX3016

RX3015
RX3022

RX3013

»

R3252

+

C

K

A

R

RX3008

CX3007
Q3250

CX2102

W19

C2220

EB C

ICX3710

FB3611A

CX3621

W115

W123

RM2239

RM2235

RM2241

Q2206

RX3712

LX3612

CX3622

FB3611

W144

CM2216

RM2238

E

RM2244

RIGHT

CN9S4

CX3851

FX3613

FX3610

W117

+

B
C
E

D2205

CX3853

8

K

DX3612

FB3612

FX3612

»

W116

RX3216

L2202

»

»

R2243

R2119

1

ICX3870

RX3611

FB3613

CX3623

DX3611A

A

»

K

C1422

D2203

+

RM2237

Q2204

C

R2118

1

»

DX3611

ZDX3810

»

+

C2218

W142

RM2236

C2219

+

RM2245

RM2240

B

R2242

+

CN9M4

RX3851

4

5

RX3850

CX3854

RX3852

CX3852

+

RX3830

A

A

CX3850

LX3820

A

FB3610

DX3610

»

K

»

W132
FRX3840

CMX3830

X3613D

W135

+

CX3612

CTL

ICX3830

CX3613

K

RX3810

+

RX3831

W126

E

B

CX3620

RX3832

C

+

CX3610

RX3512

E B

C

RX3511

W25

W119

QX3510

W136

W120

L1403

C1425

C1420

+

+

27 40

CM1421

424CM1

CM1407

CM1406

CM1423

CM1405

26

C1408

C825

W21

1406RM

L1400

RM1405

B

B

C

C

Q1400

RM1404

E

E

RM1403

1401Q

+

CM801

C802

W23

W22

R814

C814

C824

C815

W14

»

DX3800

C829

+

+

CM830

8

R824

+

LEFT

C1248

1

W1250

CM6001

DMX3851

GND

OUT

QX3505

RX3610

+

C1418

+

CM1404

CM1402

+

C1403

C823

+

CM822

1

IC801

CM6002

IN

W125

RX3505

CX3813

13

RM823

IC800

DX3801

»

W150

CM6058

RX3820

»

DX3813

6C141

VCC

OUT

CM6059

RX3811

C800

5

CM6060

LX3840

CMX3835

CTL

RX3812

+

RM1400

IC1401

RM821

RM822

CM827

4

R830

CM6079

CM6043

LX3851

CX3840
ZDX3826

+

CX3831

ICX3816

IN

GND

FRX3813

OUT

W121

+

417

CM1

GND

+

+

R831

GND-MATRIX

CM6042

CM6093

+

»

ZDX3821

CMX3810

ICX3810

GND

CX3811

GND

OUT

IN

ICX3815

CX3816

1415C

CM1414

C821

R800

RM826

MATRIX-OUT

»

B
C

C828

LEFT-IN-YC

CM6090

CM1413

C1400

E

2804
C

CM6091

OUT

CTL

+

RM1409

R1401

R1402

+

RM813

+

CM812

RM825

R2811

+

092CM6

+

CX3855

ICX3840

GND

W80

+

3816
RX

L1402

CM1401

C811

RM812

1

Q800

JM2801

C826

LEFT-IN-VID

CM6040

CM6097

L6001

IN

IN

OUT

ICX3835

IN

FRX3815

CM1412

CM1411

W28

RM811

+

R2809

C2802

R2808

R2804

GND-AUD

GND-AUD

CM6005

RM6032

LX3852

GND

CX3836

CMX3815

W122

RM1407

CM1410

1

C813

+

R2802

R2805

RIGHT-IN-VID

CM6007

036

CM6008

CM6010

CM6011

CM6

QX3001

E

W127

C

JM1

B

+

CX3841

RM6002

OUT
W131

W128

SHIELD

W129

CM2214

+

RM2230

C3250

CX3822

+

R2226

+

R3251

W109

W110

W107

CN2P6

1

RX3815

W130

W108

W113

W11

W111

W112

R1220

W82

W85

CM1425

W124

B

C

E

W32

Q1402

W2804

52

CRY1400

C1419

+

CM1409

IC1400

W30

W29

R801

W31

W140

C1241

C1240

W33

W2803

+

C2807

W143

IC2800

W2800

+

+

R2803

C2801

C2800

R2801

R2800

GND

CN4B8

R2807

GND

RIGHT

LEFT

GND

+

+

C2805+C2803

R2810

R2806

GND-AUDNCVIDEO-IN

JP1

CHROMA-IN

GND-VID

RIGHT-IN-YC

RMX3017

W73

R1408

W78

W76

W145

C1246

SENSE

C6035

RMX3021

1

CM6033

52

W12

W118

W81

W84

W77

W75

W79

L1240

GND

ZD2800

GND

1224 13

W146

L6005

RM6058

»

R1213

+

+

+

1

W26

»

W35

R2910

R2906

GND-YC

CM1225

U1204

RM1212

C1426

»

ZD1240

RM1240

RM1241

CM1247

W27

VID-IN

1

R2905

ZD2903

LUMA-IN

+

W104

RM3250

33V

CMX3820

»

YC-SENSE

ZD6002

»

CM6003

RM6036

W105

RM1223

CM1201

IF

NC

NC

5V

5V

SDA

SCL

CS

NC

AGC

1

OUT

FRX3820

IN

CHROMA-IN

NC

L1202

+

R2912

SR25-3828VD0171B

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.

6-14

ALL SYMBOLS WITH “M” ON THE DESIGNATOR
INDICATE SURFACE MOUNTED COMPONENT.

PCB Top Layout

6E2

11E1

B E

C5111
R5129

R5127

Q5102

C

R5110

DAG

W201

CRT2

CRT1

6870VS1500C

DAG2

DAG1

B E

Q4903

W0166

2VGA8

1VGA10

1

R4982

CON2

W0165

1 1

6870VS1500C

R4997

W12VRJ11

EDGE TARGET

W0163

2E6

1

1

CON1

W0161

W0162

6870VS1500C

1E11

1

1

C4946

R4983

R4984

R4987

R4992

R4996

R4991

B

C4965

C

B

Q4904

E

C4966

W0160

C

1

MPI

R4993

C4967

E

Q4905

C

B

R4990

C

E

Q4906

C5107

L5102

R5119

R5120

Q5103

C

R5123

D5105

R5114

5C2

B E

W200

L5100

1

W1

W5100

W5103

W5104

W5102

W3

E

Q5104

C

D5102

B

C5101

R5126

R5107

C5110

R5125

R5103

RX5111

C5104

R5112

R5115

W2

RX5104

R5105

SR25-3828VD0171B

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.

6-15

ALL SYMBOLS WITH “M” ON THE DESIGNATOR
INDICATE SURFACE MOUNTED COMPONENT.

PCB Bottom Layout

R4989M

C5106M

R5113M

R5112M

R5109M

C5105M

C5109M

R5121M

R4986M

R5120M

R5108M

R5117M

R5124M

R5101M

C5102M

C5103M

R5106M

R5102M

R5105M

R5118M

C5118M

R4994M

R4995M

R4985M

SR25-3828VD0171B

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.

6-16

ALL SYMBOLS WITH “M” ON THE DESIGNATOR
INDICATE SURFACE MOUNTED COMPONENT.

zenith