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

1 2 3 4 5 6

PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO-VIDEO PRODUCTS

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.

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

From Pin 6

TX3204

RX3211

DX3006

CX3003

RX3013

RX3008

ZDX3004

RX3022

RX3015

RX3016

QX3002

RMX3009

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

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)

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).

ANTENNA

CABLE

MATRIX OUT

AUDIO IN

VIDEO IN

S-VIDEO IN

R AUDIO INLL

Super

Port

2 3

M. P. I.

Super

Port

NTENNA

CABLE

M. P. I.

2 3

MATRIX OUT

AUDIO IN

VIDEO IN

Used on HXXXX34DTUsed on HXXXX36DT models

NTENNA

CABLE

MATRIX OUT

VIDEO IN

AUDIO IN

Used on HXXXX39DT

SR25-3828VD0171B 1-3 CL - OVERVIEW

REMOTE CONTROL

Press to turn TV ON or OFF

POWER

Press to access closed captions.

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

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

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.

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

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

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

NONE

PBS

NONE

CBS

ABC

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:

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

part number

0-I

SN: 0321-43390003

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

UPN: 069-059-000-001

06/05/03 TE = 10110000

Program Revision

Revision

INSTALLER SEQ.

Font

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

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