Zenith IQC50H94W, IQC60H95W, IQC50H95W ZP94, ZP95 Service Manual

Page 1

SERVICE MANUAL

Model Series:

Product Type: Projection TV Chassis:ZP94/ZP95 Manual Series:PV152 Manual Part #:923-03439 Model Line:C Product Year:2000

General Information.......................................1

Servicing/Troubleshooting..............................2

Circuit Description......................................... 3

Model Parts Lists..........................................4

Exploded Views.............................................5

PCB Layouts Schematics

................................................

..................................................67

IQC60H94W IQC50H94W IQC60H95W

IQC50H95W

CONTENTS

Printed in U.S.A. ZP DG 4.3k

Published by Technical Publications

Zenith Electronics Corporation

201 James Record Road - Huntsville, Alabama 35824-1513

ÓCopyright July 2000 by Zenith Electronics Corporation

Page 2

PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO-VIDEO PRODUCTS

A.C. Voltmeter

10 WATT

Place this probe

on each exposed

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 reassembly 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 a .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 .15 mfd 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.

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

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.

0.15uF

1500 OHM

metal part.

PV152 PRO1200 - SAFETY

Page 3

PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO-VIDEO PRODUCTS

CHASSIS HIGH VOLTAGE ADJUSTMENT PROCEDURE

1. Connect High Voltage meter to FBT High Voltage output. Connect Ground of High Voltage meter to CRT Ground or FBT Ground.

2. Check that the High Voltage adjustment VR (RH44) is set to it’s mechanical center on the Deflection PWB. This VR is located just behind the Flyback transformer as viewed from the Front of the set. (See diagram below)

3. Receive an NTSC generator signal. (Picture should be stationary for this adjustment.

4. Video Controls should be set to Factor Settings.

5. Adjust the High Voltage to the following specifications by turning RH44 slowly.

6. Lock Paint the control. If available.

TH01

FBT

RH44

High Voltage ADJ.

+50V Pulse

Add JIG to check Hi

Volt Limit Circuit

JIG = 1k ohm 1/8W

CH30

DH24

RH54

DH31

RH55

Checking Procedure :

1. Check that the picture is turned off and the horizontal deflection circuit stops operation.

After Checking:

1. Unplug set and Remove Jig. Allow set to remain in the off condition for at least 15 seconds.

2. Apply AC and confirm the set returns to normal operation.

CHASSIS HIGH VOLTAGE LIMITER CHECK Check Preparation:

1. The set can face any direction.

2. Receive the Cross-Hatch Signal

3. VIDEO CONTROLS: Brightness to Maximum.

4. SCREEN FORMAT: Should be PROGRESSIVE mode.

5. Attach the JIG (1k ohm 1/8W resistor) to both ends of DH31 as shown in the diagram below. (See Diagram Below)

CHASSIS FLYBACK PROTECTION CIRCUIT CHECK Check Preparation:

1. The set can face any direction.

2. Receive the Cross-Hatch Signal

3. VIDEO CONTROLS: Factory Preset.

4. SCREEN FORMAT: Should be PROGRESSIVE mode.

5. Attach a 100 K ohm 1/16W ~ 1/8W resistor between QP02 base and Gnd. (SD4 connector Pin 4) and check operation.

After Checking:

1. Unplug set and Remove Jig. Allow set to remain in the off condition for at least 15 seconds.

2. Apply AC and confirm the set returns to normal operation.

PV151 PROJO

Page 4

PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO-VIDEO PRODUCTS

CN04

CHASSIS SWEEP LOSS DETECTION CIRCUIT CHECK Check Preparation:

Check Number (1):

1. The set can face any direction. 2 Receive the Cross-Hatch Signal

3. VIDEO CONTROLS: Factory Preset.

4. SCREEN FORMAT: Should be PROGRESSIVE mode.

5. Attach the JIG (A) (100 ohm 1/8W resistor) to right hand side of RN01 and to Ground as shown in the diagram below.

Check Number (2):

1. The set can face any direction.

2. Receive the Cross-Hatch Signal

3. VIDEO CONTROLS: Factory Preset.

4. SCREEN FORMAT: Should be PROGRESSIVE mode.

5. Attach the JIG (B) (100 ohm 1/8W resistor) to right hand side of RN11 and to Ground as shown in the diagram below.

Checking Procedure :

1. Check that the picture is turned off in either check.

After Checking:

1. Remove Jig after each check.

2. Confirm the set returns to normal operation.

CN01

PV151 PROJO

iii

Page 5

TABLE OF CONTENTS

SECTION 1 GENERAL INFO / REMOTE CONTROL

CAUTIONS FOR HV CONNECTOR ................................. 1-1

SPECIFICATIONS .................................................... 1-2

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

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

REMOTE CODES ..................................................... 1-5

CUSTOMER AUDIO/VIDEO ADJUSTMENT ........................ 1-7

CUSTOMER CONVERGENCE ADJUSTMENT ....................... 1-9

SECTION 2 SERVICING

SERVICE MENUES .............................................. 2-1

SERVICE ADJUSTMENT ORDER .................................. 2-6

MEMORY INITIALIZATION ........................................ 2-7

PRE HEAT .............................................. 2-7

CUT OFF ADJUSTMENT ............................................ 2-7

PRE FOCUS ADJUSTMENT ........................................ 2-7

DCU PHASE ADJUSTMENT (COARSE) ........................... 2-9

HORIZONTAL PHASE ADJUSTMENT .............................. 2-9

RASTER INCLINATION ............................................. 2-9

BEAM ALIGNMENT .............................................. 2-10

VERT/HORIZ POSITION ADJUSTMENT ........................... 2-10

HORIZONTAL SIZE ADJUSTMENT ................................ 2-11

VERTICAL SIZE ADJUSTMENT .................................... 2-11

BEAM FORM ADJUSTMENT ....................................... 2-11

LENS FOCUS ADJUSTMENT ....................................... 2-12

STATIC FOCUS ADJUSTMENT ..................................... 2-12

BLUE DEFOCUS ADJUSTMENT ................................... 2-12

WHITE BALANCE ADJUSTMENT .................................. 2-13

SUB BRIGHT ADJUSTMENT ....................................... 2-14

HORIZONTAL POSITION ADJUSTMENT (FINE).................. 2-14

DIGITAL CONVERGENCE ADJUSTMENT .......................... 2-14

DIGITAL CONVERGENCE REMOTE ................................ 2-15

CONVERGENCE POINT ADJUSTMENT ............................ 2-16

CONVERGENCE 3X3 ADJUSTMENT ............................... 2-17

CONVERGENCE 7X5 ADJUSTMENT ............................... 2-17

CONVERGENCE 13X9 ADJUSTMENT ............................. 2-17

TROUBLE SHOOTING .............................................. 2-19

ZP 94/95 SIGNAL TOP PCB LAYOUT ............................ 6-3

ZP 94/95 SIGNAL BOTTOM PCB LAYOUT ....................... 6-4

ZP 94/95 SWITCH MODE POWER TOP PCB LAYOUT ........... 6-5

ZP 94/95 SWITCH MODE POWER BOTTOM PCB LAYOUT ..... 6-6

ZP 94/95 CPT TOP PCB LAYOUT ................................. 6-7

ZP 94/95 CPT BOTTOM PCB LAYOUT ........................... 6-8

ZP 94/95 SRS AUDIO TOP PCB LAYOUT ....................... 6-9

ZP 94/95 SRS AUDIO BOTTOM PCB LAYOUT .................. 6-10

ZP 94/95 JACKPACK TOP PCB LAYOUT ......................... 6-11

ZP 94/95 JACKPACK BOTTOM PCB LAYOUT .................... 6-12

ZP 94/95 CONTROL PANEL TOP PCB LAYOUT .................. 6-13

ZP 94/95 CONTROL PANEL BOTTOM PCB LAYOUT ........... 6-14

ZP 94/95 VELOCITY MODULATOR AND SUB TOP

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

ZP 94/95 VELOCITY MODULATOR AND SUB BOTTOM

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

ZP 94/95 YC & COMB FILTER TOP PCB LAYOUT ............... 6-17

ZP 94/95 YC & COMB FILTER BOTTOM PCB LAYOUT ......... 6-18

SECTION 7 SCHEMATICS

ZP 94/95 MICRO PWB CIRCUIT .................................. 6-1

ZP 94/95 SIGNAL INTERCONNECT CIRCUIT .................... 6-2

ZP 94/95 TUNER IF CIRCUIT ..................................... 6-3

ZP 94/95 POWER SUPPLY PWB CIRCUIT ....................... 6-4

ZP 94/95 DEFLECTION CIRCUIT ................................. 6-5

ZP 94/95 CONVERGENCE POWER SUPPLY ...................... 6-6

ZP 94/95 REGISTRATION / CONVERGENCE CORRECT PWB ... 6-7

ZP 94/95 JACKPACK / TERMINAL DIAGRAM ................... 6-8

ZP 94/95 2 LINE COMB FILTER CIRCUIT ....................... 6-9

ZP 94/95 CHROMA / LUMMA CIRCUIT ......................... 6-10

ZP 94/95 VELOCITY MODULATOR PWB CIRCUIT ............... 6-11

ZP 94/95 CRT PWB CIRCUIT ..................................... 6-12

ZP 94/95 AUDIO MATRIX / CONTROL PANEL PWB ............ 6-13

SECTION 3 CIRCUIT DESCRIPTION

POWER SUPPLY OPERATION ...................................... 3-1

TURNING ON THE DEFLECTION POWER SUPPLY ............... 3-2

POWER SUPPLY SHUTDOWN EXPLANATION .................... 3-3

ABL CIRCUIT .............................................. 3-4

MICRO PROCESSOR DATA COMMUNICATION ................... 3-5

SECTION 4 PARTS LIST

MODEL PARTS .............................................. 4-1

SECTION 5 DIAGRAMS

ZP 94/95 EXPLODED VIEW....................................... 5-1

ZP 94/95 EXPLODED VIEW FRONT .............................. 5-2

ZP 94/95 EXPLODED BACK ...................................... 5-3

ZP 94/95 INTERCONNECT ........................................ 5-4

ZP 94/95 WIRING DIAGRAM ..................................... 5-5

SECTION 6 PCB LAYOUTS

ZP 94/95 DEFLECTION TOP PCB LAYOUT ...................... 6-1

ZP 94/95 DEFLECTION BOTTOM PCB LAYOUT ................. 6-2

PV152 TOC PROJO

Page 6

CAUTIONS WHEN CONNECTING / DISCONNECTING THE HV CONNECTOR

FIG. A

HV Cable

POSITION

FIG. B

Boot Assembly

LESS THAN 1mm

DEFLECTION

FBT

ANODE

CONNECTOR

FlybackTAB

P.W.B

Perform the following when the HV connector (anode connector) is removed or inserted for CPT replacement, etc.

PUSH

During Removal

1. Roll out silicon cover from FBT’s contact area slowly.

2. While turning the connector about 90 degrees following the arrow (0 position). Push the connector slightly toward the case. (Fig. A)

3. Remove the connector slowly by pulling it away from the case.

HV Cable &

Flyback

During Insertion

1. Please refer to direction for insertion as shown in Fig. B (L position). Insert connector until “CLICK” sound is heard.

2. Make sure the connector is pressed right in, so that it has a good contact with the spring.

3. Confirm the contact by pulling the connector slightly. (Don’t pull hard because it may damage the connector).

4. Cover the high voltage output by carefully pushing silicon boot onto it. (Don’t turn the connector).

Note: Make sure the silicon boot is covering the high

voltage output.

PV151 1-1 PROJO

Page 7

TECHNICAL CAUTIONS

SECTION 1

High Voltage

FBT)(TH01

Defelection

H.V. Meter

Remove 80 and connect 50K Ohm jig as shown

High Voltage limiter circuit check

1. Turn off TV and connect jig as shown in Figure 2. Adjust jig fully counter clockwise for minimun resistance.

2. Set the AC input to 120V AC and turn on TV.

3. Confirm test pattern on CRT is a usable picture, then slowly adjust jig until the picture disappears and TV shuts down.

4. When the limiter circuit is operating properly, Voltage will be less than 36.5kV at 0.6mA when TV shuts down.

5. Turn off set immediately after checking circuit operations.

6. Unplug set for one minute to reset shutdown circuit. Remove jig and voltmeter.

TP91

Chassis Ground

High Impedance

Figure 2. Deflection/Power PCB

FBT

RH80

P.W.B.

Connector

50K Ohm VR

JIG

POWER/DEFLECTION PWB

PV151 1-2 PROJO

RH44

Page 8

SPECIFICATIONS FOR 94 & 95 SERIES MODELS

ZP94

ZP95

Model:

Cathode-Ray Tube:

Power Input 120 Volt AC, 6OHz Power Consumption:

Antenna Impedence:

Receiving Channel:

Intermediate Frequency:

Video Input:

Video Output: 1 Volt p-p, 75 Ohm

IQC60H95W IQC50H95W Audio Input: 470 mVrms, 47 k Ohm IQC60H94W IQC50H94W Stereo Audio Output: 470 mVrms, 1 k Ohm R=P16LFM00RFA(LU) Front- 12 Watt at 10% distortion, 8 Ohm Imp. G=P16LFM00HHA(LU) Max Output - 15 Watt B=P16LFM00BMB(EU) Anode Voltage:

224 Watts - Maximum 192 Watts - Operating 206 Watts - Operating

75ohm Unbalanced VHF / UHF / CATV 2 woofers - 5 Inch

BAND CH (12 cm) Round

VHF 2-13 Dimension: 50" Series Models 60" Series Models UHF 14-69 Height 52 60 1/2 EXT. Mid (A-5)~(A-1), 4+ Width 43 1/5 51 1/2 CATV Mid A~I Depth 23 1/2 26 1/2 CATV Super J~W Weight CATV Hyper (W+1) (W+28) Power Supply P.W.B. C.P.T. (B) P.W.B Control P.W.B Picture I-F Carrier 45.75 MHz VM P.W.B. C.P.T. (G) P.W.B. Sensor Dist. P.W.B. Sound I-F Carrier 41.25 MHz Surround P.W.B. C.P.T. (R) P.W.B. Sub Deflect. P.W.B Color Sub Carrier 42.17 MHz Signal P.W.B. Power/Deflection P.W.B. 1 Volt p-p, 75 Ohm Audio Out P.W.B. Control P.W.B. 1 Volt p-p, 75 Ohm (Y) 2H P.W.B. Terminal P.W.B.

07. Volt p-p, 75 Ohm, (Cb, Cr)

Audio Output Power:

30.0 + 1.5kv (1.27 + 0.2ma)

Brightness Size

232 Watts - Maximum Full White 50" 130 130

Brightness Max 60" Speakers:

Circuit Board Assemblies:

ZP94 ZP95

100 100

CIRCUIT PROTECTION

CAUTION: Below is an EXAMPLE only. See Replacement Parts List for details. The following symbol near the fuse

indicates fast operation fuse (to be replaces). Fuse ratings appear within the symbol.

The rating of fuse F901 is 6.0A - 125V.

“RISK OF FIRE - REPLACE FUSE AS MARKED”

PV151 1-3 PROJO

Replace with the same type fuse for continued protection against fire.

Page 9

GENERAL INFORMATION

-CHANNEL+

DIGITAL

Source Selector

DIGITAL CONVERGENCE

S-VIDEO

VIDEO

(MONO

)

AUDIOINPUT1INPUT2LRS-VIDEOMONITOROUTY

PBP

ANT

VIDEO

(MONO

)

AUDIORS-VIDEOVIDE

(MONO

)

AUDIOLRS-VIDEOY

PBP

SOURCE

EXIT

TV / VIDEO

-VOLUME+

POWER

Figure 3. Control Panel

ANT A

To Converter

SETUP

SETS ONLY

VIDEO

LEFT

AUDIO

RIGHT AUDIO

PV151 1-4 PROJO

A UDIO TO HI-FI

Figure 4. Rear Connection Panel

Page 10

REMOTE CONTROL MODEL MBR3475Z

Selects the remote's mode of operation

Increases / Decreases TV’s sound

level.

QUIT

MBR3475Z

924-10092

C. SKIP

AUX

Auxilliary equipment control

Channel Skip. Tunes Entertainment

Machine to last channel viewed. Tunes

back to original channel after 30, 60,

HELP

PIP MODE

Activates the on-screen help feature.

FLASHBK (Flashback)

Returns to previous Channel.

SOURCE

Signal Source

CHANNEL (Up/Down)

Selects next channel in

TV’s memory. Press

and hold to repeat.

NUMBER PAD

Selects channels directly.

Displays menus for TV

and other options.

SELECT

POWER

Turns TV On or Off.

MODE

MUTE

Turns sound Off and On while picture remains.

VOLUME (Left/Right)

Changes PIP Mode

DISPLAY

Shows Channel/Time, enters channel, or removes any on-screen menus.

Leaves programming menus and clear screen of display.

LEFT/RIGHT ARROWS

Chooses and shows the

desired menu option.

PIP KEYS

Special features of some TV’s

TIMER

Press repeatedly to set desired

TV shut-off time.

90, 120, 150, or 180 seconds. .

UP and DOWN ARROWS

Moves highlighted bar within menu to select an option.

TV/VCR SOURCE

Steps through source options.

Remote Control Part Number.

PV151 1-5 PROJO

Page 11

PROGRAMMING CODES

Adventura 00 Aiko 08 Aiwa 00 Akai 01, 48, 49 American High 22 Asha 45 Audiovox 23 Beaumark 45 Bell & Howell 32 Brandt 43 Broksonic 33, 34, 42, 42, 52 Calix 23 Canon 22 Capehart 06 Carver 31 CCE 08, 30 Citizen 08, 23 Colt 30 Craig 18, 23, 30, 45 Curtis Mathis 01, 22, 47 Cybernex 45 Daewoo 06, 08, 16, 38, 50 Daytron 06 Dynatech 00 Electrohome 23 Electrophonic 23 Emerx 07 Emerson 00, 08, 12, 15, 23, 27,

28, 33, 34, 37, 42, 48,

51, 52 Fisher 18, 20, 32, 46 Fuji 09, 22 Funai 00 Garrad 00 General Electric 03, 22, 41, 47 Goldstar 23, 24, 44 Gradiente 00 Harley Davidson 00 Harman / Kardon 24 Harwood 30 Headquarter 17 Hi-Q 18 Hitachi 01, 02, 03, 04 Jensen 01 JVC 01, 13, 26 KEC 08, 23 Kenwood 01, 24, 26 KLH 30 Kodak 22, 23 Lloyd 00 Lloyd’s 27 Logik 30 LXI 23 Magnavox 14, 2, 29, 31, 35 Magin 45 Marantz 22, 3 Marta 23 Matsushita 22 MEI 22 Memorex 00, 14, 17, 18, 19, 22,

23, 32, 45 MGA 15, 48 MGN Tech 45 Minolta 02, 04 Mitsubishi 15, 26, 40, 48, 49 Motorola 19, 22 MTC 00, 45 Multitech 00, 30

VCRS (continued)VCRS

NEC 01, 05, 24, 26, 32 Nikko 23 Noblex 45 Olympus 11, 22 Optimus 19, 23, 32 Orion 51 Panasonic 10, 11, 22, 39, 53 Penny 02, 05, 22, 23, 24, 45,

46 Pentax 02, 03, 04 Philco 22 Philips 20, 29, 31 Pilot 23 Pioneer 26 Portland 06 Protec 30 Pulsar 14 Quarter 17 Quartz 17 Quasar 22 Radio Shack 00, 23 Radix 23 Randex 23 RCA 02, 03, 04, 35, 41, 47 Realistic 00, 17, 18, 19, 20, 22,

23, 32, 45 Ricoh 21 Runco 14 Samsung 16, 45 Sanky 14, 19 Sansui 01, 26 Sanyo 17, 18, 32, 45 Scott 15, 16, 33, 34, 37, 42 Sears 02, 04, 17, 18, 20, 22,

23, 32, 46 Sharp 19 Shintom 30 Shogun 45 Shinger 30 Sony 07, 09, 21, 22 STS 02 Sylvania 00, 15, 22, 29, 31 Symphonic 00 Tatung 01 Teac 00, 01 Technics 22, 39 Teknika 00, 22, 23 Telefunken 43 THK 27, 45 Toshiba 15, 16, 20, 37 Totevision 23, 45 Unitech 45 Vector 16 Vector Research 05, 24 Video Concepts 05, 16, 48 Videosonic 45 Wards 00, 02, 18, 19, 22, 30,

35, 37, 45, 47 XR 1000 00, 22, 30 Yamaha 24 Zenith 09, 14, 21, 55

Cable Satelites

ABC 00, 07, 08, 18, 19, 21,

37, 38, 53 Antronixs 40 Archer 12, 25, 40 Belcor 33 Cable Star 33

Cable Satelites (continued)

Century 12 Citizen 12 Colour Voice 31, 45 Contronics 26, 29 Contec 22 Dae Ryung 21 Eastern 15 Electricord 32 Everquest 56 Focus 57 Garrard 12 GC Electronics 33, 40 Gemini 04, 39, 44, 56 Goldstar 11, 26 General Insturments 00, 13 Hamlin 03, 09, 14, 23, 24 Hitachi 00 Hytex 37 Jasco 12 Jerrold 00, 08, 13, 38, 53, 55,

56 Macom 36 Magnavox 16 Memorex 02 Movie Time 30, 32, 34 NSC 30, 34, 39 Oak 22, 37, 50 Panasonic 02, 10, 49 Paragon 02 Philips 12, 16, 17, 27, 31, 43,

44, 45, 47 Pioneer 06, 11, 20 Popular Mechanics 57 Pulsar 02 RCA 49 Realistic 40 Recoton 57 Regal 03, 09, 23, 35 Regency 15 Rembrandt 00, 39 Runco 02 Samsung 11, 26 Scientific Atlanta 18, 21, 42, 48 Signal 26, 56 Signature 00 SL Marx 26 Sprucer 01, 49 Starcom 38, 53, 56 Stargate 26, 56 Starquest 56 Starsight 58, 59 Sylvania 19 Teleview 26 Texscan 19 Tocom 07, 28, 55 Toshiba 02 Tusa 56 TV 86 30 Unika 12, 40 United Artist 37 United Cable 53 Universal 12, 25, 32, 33, 35, 40 Videoway 51 Viewstar 16, 29, 30, 41 Zenith 16, 29, 30, 41, 64 Zentek 57 Hitachi (SAT) 61 RCA (SAT) 62 Sony (SAT) 63

PV151 1-6 PROJO

Page 12

PROGRAMMING CODES

DVD Players

Denon 03 Hitachi 06 JVC 00 Kenwood 03 Magnavox 04 Mitsubishi 09 Panasonic 03 Pioneer 02 Philips 05 RCA (ProScan) 08 Sony 01 Toshiba 04 Yamaha 07 Zenith 04, 10

CD Players

Adcom 11 Aiwa 12 California Audio 13 Carver 12 Denon 14 DKK 15 Emerson 11 Fisher 16 Genexxa 17 Hitachi 11, 17, 18, 19, 20,

21, 22 JVC 23 Kenwood 16, 24, 25 Krell 12 Magnavox 12 Marantz 12, 13 MCS 13 Mission 13 NSM 12 Onkyo 26 Optimus 15, 17, 27 Panasonic 13 Philips 12 Pioneer 17, 27 Proton 12 QED 12 Quasar 13 RCA 11, 31 Realistic 11 Rotel 12 SAE 12 Sansui 12 Scott 11 Sony 15, 28 Technics 13, 29, 30 Victor 23

Tape Players

Awia 42, 43 Hitachi 32, 33, 34, 35 Jerrold 44, 45 JVC 36 Kenwood 37 Optimus 38 Panasonic 39 Pioneer 38 Scientific Atlanta 46 Sony 40, 52, 42, 43 Starcom 44 Wards 38

Audio Amplifiers

Aiwa 51, 52 Carver 47, 52, 53, 54 Casio 55 Clarinette 55 Denon 56 Fisher 54, 57 Hitachi 58 JVC 59 Kenwood 60, 61, 63, 64 Lloyd’s 55 Magnavox 57, 63, 55 Marantz 47, 52, 62 MCS 62 Modulaire 55 Onkyo 55 Optimus 49, 50, 57, 61, 66 Panasonic 62 Penney 55 Philips 47, 52 Pioneer 49, 50, 66, 67, 68 Quasar 62 Realistic 55 Sansui 52 Sanyo 57 Sharp 61 Sony 51 Technics 48, 62, 69, 70, 71 Victor 59 Ward 49, 51, 52, 54, 66, 67 Yamaha 61, 72 York 55

PV151 1-7 PROJO

Page 13

CUSTOMIZED VIDEO AND AUDIO ADJUSTMENTS

THEATER

Select VIDEO to adjust picture settings and improve picture quality.

SPECIAL

SETUP

CONTRAST 75 % BRIGHTNESS 50% COLOR TINT SHARPNESS 50% RESET ADVANCED

MENU TO MENU BAR

SETTINGS

VIDEO

AUDIO

TO EXIT

50%

QUIT

Note: If contrast is selected, you are adjusting

CONTRAST. The additional menu items, BRIGHTNESS, COLOR, TINT, and SHARPNESS can be adjusted in the same manner.

Contrast and Brightness adjustmens will effect only the main picture. These adjustments will not affect the subpicture.

SETUP SPECIAL VIDEO AUDIO

Advanced Settings

View Rite Auto Flesh Video

Color Temperature

Cool Warm

Aspect Ratio

4.3 16.9

V. Position +10

MENU TO MENU BAR

TO EXIT

QUIT

Use Cursor Up or Down to highlight the function to be adjusted.

Press Cursor Left or Right to adjust function. Press QUIT to exit menu.

CONTRAST

Use this function to change the contrast between black and white levels in the picture. This adjustment will only affect the picture when LIGHT SENTRY is OFF.

BRIGHTNESS

Use this function to adjust overall picture brightness.

COLOR

Use this function to adjust the color level in the picture.

TINT

Use this function to adjust flesh tones so they appear natural. (It may be necessary to adjust TINT to abtain optimum picture quality when using the COMPONENT:Y-CbCr Input 2 jacks).

SHARPNESS

Use this function to adjust the amount of detail in the picture.

RESET

When RESET is selected, press CURSOR RIGHT to reset video settings to factory preset conditions.

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CUSTOMIZED VIDEO AND AUDIO ADJUSTMENTS

THEATER

TO EXIT

THEATER

Select AUDIO SETTINGS to adjust the AUDIO to your preference and improve the sound quality.

VIDEO

SETUP SPECIAL

AUDIO

VIDEOSETUP SPECIAL AUDIO

BASS 72 %

TREBLE

BALANCE

RESET

ADVANCED

SETTINGS

TO MENU BAR

50%

QUIT

Note: If BASS is selected you are adjusting BASS.

The additional menu items, TREBLE and BALANCE can be selected and adjusted in the same manner

BASS

This function controls the Low Frequency audio to all speakers.

TREBLE

This function controls the High Frequency audio to all speakers.

Advanced Settings

Stereo Mono Second Audio Programming

Internal Speakers Auto Noise Control Loudness SoundRite

TO MENU BAR TO EXIT QUIT

Use Cursor Up or Down to highlight the function to be adjusted.

Press Cursor Left or Right to adjust function. Press QUIT to exit menu.

BALANCE

This function will control the left to right balance of the TV internal speakers and the VARIBLE AUDIO OUT output.

RESET

When RESET is selected, press CURSOR RIGHT to return audio adjustments to factory preset conditions.

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ZP94/95 CUSTOMER CONVERGENCE ADJUSTMENT

Flashes Blue

Flashes Red

Digital

Setup

CONVERGENCE ADJUSTMENT (DIGITAL SETUP)

To enter this adjustnment mode, press the front panel DIGITAL SETUP button.

Press the ARROW buttons on the remote control to move the displayed color up, down, left, or right. (Press the QUIT button to toggle between red and blue)

Press MENU on the remote control to change the color you want to adjust.

Press the front panel DIGITAL SETUP button or the remote comtrol MENU button when adjustment is done. This will save your adjustment into memory.

Note: Only a momentary press of the DGITAL SETUP button is

necessary to enter DIGITAL SETUP convergence adjustment mode.

Do not press the DIGITAL SETUP button for more than three seconds.

To save your adjustment data into memory, press the front panel DIGITAL SETUP button or the remote control MENU button. If you do NOT wish to save your adjustment data into memory, turn the TV off. When the TV is ON again, your old convergence data will be restored.

To exit this function, press DIGITAL SETUP on the front panel of your Entertainment machine.

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SERVICE MENUES

TA1300 31.5khz Mode

TA1300 33.75khz Mode

ITEM SETTING RANGE DESCRIPTION

P01 ZP94/95 *Non-Adjustable Data ADJUST MODE Version 704

SUB BRT 3C-C3 Sub Brightness SERVICE 0 SERVICE

DEF RESET 0 V/P RESET 0 3DYC RESET 0 FLEX RESET 0 DSP RESET 0 CCD RESET 0 FACT RESET 0 Resets Memory MEMORY INITIAL 0 Resets Memory P02 ZP94/95 ADJUST MODE

315 H POSI 40 00-7F Horizontal Position FLEX CONT VD POS 3F 00-7F Vertical Position UPD64081 DYGA 09 00-0F Y Motion Detection Gain DCGA 06 00-0F Chroma Motion Detection Gain VAPGA 00 00-07 Vertical Aperture Controle Gain VAPIN 00 00-1F Vertical Aperture Controle Invert YHCOR 00 00-01 Y Output High Frequency Coring P02 ZP94/95 ADJUST MODE

3375 H POSI 40 00-7F Horizontal Position FLEX CONT VD POS 3F 00-7F Vertical Position UPD64081 DYGA 09 00-0F Y Motion Detection Gain DCGA 06 00-0F Chroma Motion Detection Gain VAPGA 00 00-07 Vertical Aperture Controle Gain VAPIN 00 00-1F Vertical Aperture Controle Invert YHCOR 00 00-01 Y Output High Frequency Coring P03 ZP94/95 ADJUST MODE

TA1270-M TINT (TV) 3C 00-7F Main NTSC Tint TOFFO (TV) 00 00-07 Main NTSC TOF fO Peak Frequency Switch TOFQ (TV) 00 00-07 Main NTSC TOFQ Switch SUB CNT 0F 00-1F Main NTSC Contrast SUB CL 1B 00-1F Main NTSC Color P03 ZP94/95 ADJUST MODE

TA1270-S TINT (TV) 3C 00-7F Main NTSC Tint TOFFO (TV) 00 00-07 Main NTSC TOF fO Peak Frequency Switch TOFQ (TV) 00 00-07 Main NTSC TOFQ Switch SUB CNT 0F 00-1F Main NTSC Contrast SUB CLR 1B 00-1F Main NTSC Color

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SERVICE MENUES CONT.

ITEM SETTING RANGE DESCRIPTION

P04 ZP94/95 *Non-Adjustable Data FLEX CONT NTSC 39 HHPF1 00 00-01 Characteristic Switch 0 = Low Frequency, 1 = High Frequency 41 V-CRG 00 00-03 Vertical Enhance Coring 42 H-CRG 00 00-03 Horizontal Enhance Coring 43 V-ENH 00 00-03 Vertical Enhance 44 H-ENH 00 00-03 Horizontal Enhance 96 YVHENH 0B 00-1F Y Vertical & Horizontal Enhance Gain 100 CVHENH 12 00-1F Color Vertical & Horizontal Enhance Gain P04 ZP94/95 FLEX CONT ATSC (480i, 480p, 1080i, 720p) 39 HHPF1 00 00-01 Characteristic Switch 0 = Low Frequency, 1 = High Frequency 41 V-CRG 00 00-03 Vertical Enhance Coring 42 H-CRG 00 00-03 Horizontal Enhance Coring 43 V-ENH 00 00-03 Vertical Enhance 44 H-ENH 00 00-03 Horizontal Enhance 96 YVHENH (720p) 00 (10) 00-1F Y Vertical & Horizontal Enhance Gain 100 CVHENH 12 00-1F Color Vertical & Horizontal Enhance Gain

P05 ZP94/95 FLEX CONT NTSC 71 YV-ENH 00 00-0F Y Vertical Enhance Gain 79 CV-ENH 00 00-0F Color Vertical Enhance Gain 87 YH-ENH 07 00-0F Y Horizontal Enhance Gain 94 CH-ENH 0F 00-0F Color Horizontal Enhance Gain 66 YV-DSB 00 00-03 Y Vertical Dynamic Shoot Balance Gain 75 CV-DSB 00 00-03 Color Vertical Dynamic Shoot Balance Gain 82 YH-DSB 00 00-03 Y Horizontal Dynamic Shoot Balance Gain 90 CH-DSB 00 00-03 Color Horizontal Dynamic Shoot Balance Gain 69 YV-CLP 00 00-0F Y Vertical Enhance Clip Offset 84 YH-CLP 00 00-0F Y Horizontal Enhance Clip Offset P05 ZP94/95 FLEX CONT ATSC (480i, 480p, 1080i, 720p) 71 YV-ENH 00 00-0F Y Vertical Enhance Gain 79 CV-ENH 00 00-0F Color Vertical Enhance Gain 87 YH-ENH (1080i) 07 (00) 00-0F Y Horizontal Enhance Gain 94 CH-ENH 0F 00-0F Color Horizontal Enhance Gain 66 YV-DSB 00 00-03 Y Vertical Dynamic Shoot Balance Gain 75 CV-DSB 00 00-03 Color Vertical Dynamic Shoot Balance Gain 82 YH-DSB 00 00-03 Y Horizontal Dynamic Shoot Balance Gain 90 CH-DSB 00 00-03 Color Horizontal Dynamic Shoot Balance Gain 69 YV-CLP 00 00-0F Y Vertical Enhance Clip Offset 84 YH-CLP 00 00-0F Y Horizontal Enhance Clip Offset

P06 ZP94/95 FLEX CONT NTSC 97 YV-NLP 00 00-3F Y Vertical Nonlinear Peaking 98 YH-NLP 0A 00-3F Y Horizontal Nonlinear Peaking 101 Y-LMT FF 00-FF Y Amplitude Limit 83 YH-FRQ 00 00-03 Y Horizontal HPF Peak Frequency Switch 91 CH-FRQ 02 00-03 Color Horizontal HPF Peak Frequency Switch 70 YV-LTI 00 00-01 Y Vertical Enhance Clip 0 = Enhance, 1 = LTI 78 CV-CTI 00 00-01 Color Vertical Enhance Clip 0 = CTI, 1 = Enhance 86 YH-LTI 01 00-01 Y Horizontal Enhance Clip 0 = Enhance, 1 = LTI 93 CH-CTI 01 00-01 Color Horizontal Enhance Clip 0 = CTI, 1 = Enhance

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SERVICE MENUES CONT.

ITEM SETTING RANGE DESCRIPTION

P06 ZP94/95 *Non-Adjustable Data FLEX CONT ATSC (480i, 480p, 1080i, 720p) 97 YV-NLP 00 00-3F Y Vertical Nonlinear Peaking 98 YH-NLP 0A 00-3F Y Horizontal Nonlinear Peaking 101 Y-LMT FF 00-FF Y Amplitude Limit 83 YH-FRQ 00 00-03 Y Horizontal HPF Peak Frequency Switch 91 CH-FRQ 02 00-03 Color Horizontal HPF Peak Frequency Switch 70 YV-LTI 00 00-01 Y Vertical Enhance Clip 0 = Enhance, 1 = LTI 78 CV-CTI 00 00-01 Color Vertical Enhance Clip 0 = CTI, 1 = Enhance 86 YH-LTI 01 00-01 Y Horizontal Enhance Clip 0 = Enhance, 1 = LTI 93 CH-CTI 01 00-01 Color Horizontal Enhance Clip 0 = CTI, 1 = Enhance P07 ZP94/95 FLEX CONT NTSC 69 YVDSBC 00 00-07 Y Vertical Dynamic Shoot Balance Coring Amplitude 77 CVDSBC 00 00-07 Color Vertical Dynamic Shoot Balance Coring Amplitude 85 YHDSBC 00 00-07 Y Horizontal Dynamic Shoot Balance Coring Amplitude 92 CHDSBC 00 00-07 Color Horizontal Dynamic Shoot Balance Coring Amplitude 95 Y-CRG 00 00-07 Y Coring Amplitude 99 C-CRG 00 00-07 Color Coring Amplitude 64 YNR-IN 04 00-07 YNR Input Level Gain 73 CNR-IN 04 00-07 CNR Input Level Gain 80 YNRPAS 00 00-07 YNR Passage Level Limit 88 CNRPAS 02 00-07 CNR Passage Level Limit P07 ZP94/95 FLEX CONT ATSC (480i, 480p, 1080i, 720p) 69 YVDSBC 00 00-07 Y Vertical Dynamic Shoot Balance Coring Amplitude 77 CVDSBC 00 00-07 Color Vertical Dynamic Shoot Balance Coring Amplitude 85 YHDSBC 00 00-07 Y Horizontal Dynamic Shoot Balance Coring Amplitude 92 CHDSBC 00 00-07 Color Horizontal Dynamic Shoot Balance Coring Amplitude 95 Y-CRG 00 00-07 Y Coring Amplitude 99 C-CRG 00 00-07 Color Coring Amplitude 64 YNR-IN 04 00-07 YNR Input Level Gain 73 CNR-IN 04 00-07 CNR Input Level Gain 80 YNRPAS 00 00-07 YNR Passage Level Limit 88 CNRPAS 02 00-07 CNR Passage Level Limit

P08 ZP94/95 FLEX CONT NTSC/ATSC (480i, 480p, 1080i, 720p) 65 YNRRDC 00 00-07 YNR Reducing Gain 74 CNRRDC 00 00-07 CNR Reducing Gain 67 YNR-DC 00 00-03 YNR DC Shift 76 CNR-DC 00 00-03 Color DC Shift 81 YNR-O 00 00-07 YNR 0 Point 89 CNR-O 00 00-0F CNR 0 Point 45 CB-BLK 07 00-0F CB Blanking Level Offset 46 CR-BLK 07 00-0F CR Blanking Level Offset 27 FRMBRT* 60 00-7F Y Frame Bright 102 CLPOUT 7F 00-FF Clamp Output Offset P09 ZP94/95 FLEX CONT NTSC/ATSC 10 MPLL-S 0F 00-1F Main PLL Vertical Mask Pulse Start Position Offset 17 SPLL-S 0F 00-1F Sub PLL Vertical Mask Pulse Start Position Offset 12 MPLL-E 0F 00-1F Main PLL Vertical Mask Pulse End Position Offset 19 SPLL-E 0F 00-1F Sub PLL Vertical Mask Pulse End Position Offset 11 MVW-PH 05 00-07 Main Vertical Write Input Horizontal Phase Adjustment 18 SVW-PH 05 00-07 Sub Vertical Write Input Horizontal Phase Adjustment 14 MHS-HP 0F 00-1F Main Horizontal Sync Horizontal Phase Offset 21 SHS-HP 0F 00-1F Sub Horizonyal Sync Horizontal Phase Offset 13 MY-CLP 03 00-07 Main Y Clamp Refrence Offset 20 SY-CLP 03 00-07 Sub Y Clamp Refrence Offset

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SERVICE MENUES CONT.

ITEM SETTING RANGE DESCRIPTION

P10 ZP94/95 *Non-Adjustable Data FLEX CONT NTSC/ATSC (480i, 480p, 1080i, 720p) 23 V-POS 3F 00-3F Wide Vertical Position 24 V-SIZ 7F 00-FF Wide Vertical Size 50 HD-POS 3F 00-7F HD Position Offset 48 VBLK-T 7F 00-FF Vertical Blanking Top Position Offset 49 VBLK-B 7F 00-FF Vertical Blanking Bottom Position Offset 51 HBLK-R 7F 00-FF Horizontal Blanking Right Position Offset 52 HBLK-L 7F 00-FF Horizontal Blanking Left Position Offset 40 READ F 10 00-3F A/D Converter Clock Sampling Phase P11 ZP94/95 FLEX CONT NTSC/ATSC (480i, 480p, 1080i, 720p) 35 FRMTOP-2 07 00-0F Frame Top Position Offset (2Pix) FRMTOP-L* 07 00-0F Frame Top Position Offset (Letter) 36 FRMBTM-2 07 00-0F Frame Bottom Position Offset (2Pix) FRMBTM-L* 07 00-0F Frame Bottom Position Offset (Letter) 37 FRMRGT 07 00-0F Frame Right Position Offset 38 FRMLFT 07 00-0F Frame Left Position Offset 59 BS-TOP 07 00-0F Black Strech Stop Pulse Top Position Offset 60 BS-BTM 07 00-0F Black Strech Stop Pulse Bottom Position Offset 61 BS-RGT 07 00-0F Black Strech Stop Pulse Right Position Offset 62 BS-LFT 07 00-0F Black Strech Stop Pulse Left Position Offset P12 ZP94/95 FLEX CONT 120 TV/CINE 01 00-01 TV Cinema Detection 121 T/C DET 07 00-0F TV Cinema Detection Vertical Gate Area Start Position 122 T/C UNL 01 00-07 TV Cinema Detection Unlock Protection Count 123 T/C LCK 03 00-0F TV Cinema Detection Lock Protection Count 126 T/C ARE 05 00-FF TV Cinema Detection Motion Area Border Volume Offset 127 T/C CBR 07 00-0F TV Cinema Detection Color 2 Bit Border Volume Offset 128 T/C YBR 07 00-0F TV Cinema Detection Y 2 Bit Border Volume P13 ZP94/95 TA1298 NTSC SHARP 0C 00-1F Sharpness (Center Adjustment) APACON 06 00-07 APACON Peak fO YNR 00 00-03 YNR P13 ZP94/95 TA1298 480I SHARP 0A 00-1F Sharpness (Center Adjustment) APACON 06 00-07 APACON Peak fO YNR 00 00-03 YNR P13 ZP94/95 TA1298 480P SHARP 0A 00-1F Sharpness (Center Adjustment) APACON 06 00-07 APACON Peak fO YNR 00 00-03 YNR P13 ZP94/95 TA1298 1080I SHARP 07 00-1F Sharpness (Center Adjustment) APACON 05 00-07 APACON Peak fO YNR 00 00-03 YNR P13 ZP94/95 TA1298 720P SHARP 0A 00-1F Sharpness (Center Adjustment) APACON 06 00-07 APACON Peak fO YNR 00 00-03 YNR

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SERVICE MENUES CONT.

ITEM SETTING RANGE DESCRIPTION

P14 ZP94/95 *Non-Adjustable Data TA1298 NTSC COLOR 40 00-7F Color (Center Adjustment) TINT 45 00-7F Tint (Center Adjustment) R-Y PH 02 00-03 R-Y Phase R/B GA 01 00-03 R/B Gain G-Y PH 00 00-03 G-Y Phase G/B GA 00 00-03 G/B Gain COLOR SYSTEM 00 00-07 COLOR SYSTEM P14 ZP94/95 TA1298 SDTV COLOR 4F 00-7F Color (Center Adjustment) TINT 3B 00-7F Tint (Center Adjustment) R-Y PH 02 00-03 R-Y Phase R/B GA 02 00-03 R/B Gain G-Y PH 01 00-03 G-Y Phase G/B GA 00 00-03 G/B Gain COLOR SYSTEM 01 00-07 COLOR SYSTEM P14 ZP94/95 TA1298 HDTV COLOR 40 00-7F Color (Center Adjustment) TINT 43 00-7F Tint (Center Adjustment) R-Y PH 00 00-03 R-Y Phase R/B GA 02 00-03 R/B Gain G-Y PH 02 00-03 G-Y Phase G/B GA 00 00-03 G/B Gain COLOR SYSTEM 01 00-07 COLOR SYSTEM

P15 ZP94/95 TA1298 RGB BRT 50 00-7F RGB Brightness RGB CNT 50 00-7F RGB Contrast G DRV (W) 39 00-7F Green Drive (WARM) B DRV (W) 2D 00-7F Blue Drive (WARM) SUB CLR 10 00-1F Sub Color (Demodulator) SUB CNT 1F 00-1F Main NTSC Contrast VSM PH 05 00-07 VM Phase VSM GA 00 00-03 VM Gain OS ACL 01 00-01 OSD Auto Contrast Limiter Switch RGB ACL 00 00-01 RGB Auto Contrast Limiter Switch P16 ZP94/95 TA1298 CLR G 00 00-03 Color G Corection Piont CLT 00 00-01 Color Limiter Level YOUT G 00 00-01 Y G (After Contrast) Switch YG PNT 00 00-01 Y G Point S TRK 00 00-03 Sharpness Tracking RGBG 00 00-01 RGB Switch DC PNT 00 00-07 DC Restoration Point DC RAT 00 00-07 DC Restoration Rate DC LMT 00 00-03 DC Restoration Limit Point

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SERVICE MENUES CONT.

ITEM SETTING RANGE DESCRIPTION

P17 ZP94/95 *Non-Adjustable Data TA1298 BSP 03 00-07 Black Strech Point APL/BS 00 00-03 APL / Black Strech Point B COR 01 00-01 Black Level Correction B GA 00 00-01 Black Strech Gain B DET 00 00-01 Black Detect Level DABL PN 00 00-07 Dynamic ABL Detection Point DABL GA 07 00-07 Dynamic ABL Gain ABL PN 07 00-07 ABL Detection Point ABL GA 05 00-07 ABL Gain P18 ZP94/95 V CHIP RATING POLLING 0F 00-0F 0 TIMEOUT 05 00-0F 0 STATUS 02 00-0F 0

AFC/CLOCK TEST

SERVICE ADJUSTMENTS ORDER

SERVICE ADJUSTMENT PROCEDURE ORDER

The following is the suggested order for adjustment procedures.

ZP 94/95 SERVICE ADJUSTMENT ORDER “PREHEAT BEFORE BEGINNING”

Order Adjustment Item Screen Format Signal DCU Data

Pre HEAT N/A NTSC N/A 1 Cut Off Progressive NTSC 2 Pre Focus Lens and Static Progressive NTSC 3 DCU Phase Data Setting Progressive NTSC 4 DCU Phase Data Setting HD 2.14H 5 Horz. Position Adj. (Coarse) Progressive NTSC 6 Horz. Position Adj. (Coarse) HD 2.14H 7 Raster Tilt Progressive NTSC CLEAR 8 Beam Alignment Progressive NTSC 9 Raster Position Progressive NTSC CLEAR

Horz. Size Adjust Progressive NTSC CLEAR

Horz. Size Adjust HD 2.14 CLEAR

11 Vertical Size Adjust Progressive NTSC CLEAR 12 Beam Form Progressive NTSC 13 Lens Focus Adjust Progressive NTSC 14 Static Focus Adjust Progressive NTSC 15 Blue Defocus Progressive NTSC 16 White Balance Adjustment Progressive NTSC 17 Sub Brightness Adjustment Progressive NTSC Color Bar 18 Horz. Position Adjustment Progressive NTSC 19 Horz. Position Adjustment HD 2.14H 20 Convergence Alignment Progressive NTSC 21 Convergence Alignment HD 2.14H

It is necessary to follow the order when performing an alignment on the ZP 94/95 chassis.

CLEAR to start

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Page 22

12~2DRIVEVR

NVR

CUSVR

CONVERGENCE ADJUSTMENT

MEMORY INITIALIZATION PROCEDURE

WARNING: This should only be done in extreme cases. I2C

Data will be reset as well. Be sure and write down all data values before continuing.

1. Disconnect Power to Television.

2. Remove the Back Cover.

3. Remove the two screws holding the Main chassis to the Cabinet if necessary.

4. Disconnect wiring harness clips to free up the chassis if necessary.

5. Reconnect Power to the Television and turn the set ON.

6. Locate PP1 and add a jumper between pins 1 and 2 of the PP1 connector.

7. Hold jumper in place for 5 seconds. (A beep will NOT be heard).

8. Remove the jumper.

9. Confirm EEPROM reset, Input source is now set to Air and not to Cable 1 or 2. No Child Lock, and only channels 2 through 13 are in memory.

10.Reassemble Chassis and reinstall PTV back. Set is now ready to operate.

NOTE: All customers' Auto Programming and Set-Ups are

returned to factory settings.

CUT OFF

ADJUSTMENT PREPARATION: A) Pre Heat Run should be finished. ADJUSTMENT PROCEDURE:

1. Go to I2C ADJ Mode. Press and hold the “Source” key on the front panel and then POWER ON to access I2C adjustment mode.

2. Choose SERVICE item [2] of I2C ADJ. Mode. (Select CURSOR RIGHT (right arrow key).

3. Screen VR should be turned clockwise gradually and set so that retrace lines begin to appear.

4. Return to “normal” mode by using the “left arrow” key.

5. Adjust focus VR’s so that focus is even all around the screen.

PRE-FOCUS ADJUSTMENT Adjustment preparation

1. The set can face in any direction: west, east, north or

south.

2. Receive the cross-hatch pattern signal.

CONTRAST : 60-70%

Pre HEAT

PRESET EACH ADJUSTMENT VR TO CONDITION AS SHOWN: A) Before Pre Heat Run.

1. Red and Green Drive VR on the CRT PWB. (Not on Blue CRT).

Pre set between the 12 o’clock and 2 o’clock position.

2. SCREEN VR ON FOCUS PACK.

SCREE

Pre Set fully counter clockwise.

3. Focus VR on focus pack

BRIGHTNESS : 50%

3. The electrical focus adjustment should have been completed.

4. The centering DY inclination should have been adjusted.

Adjustment procedure

1. Loosen the fixing screw on the lens cylinder so that the lens cylinder can be turned. (Be careful not to loosen too much. If the screw is loosened too much, rattling when tightening becomes greater and the focus may drift). After completing steps (5), (6), and (7) below, tighten the fixing screws for each lens with a torque of 12~17 Kgf cm.

2. Apply covers to 2 of R, G, and B lenses, and project a single color on the screen and adjust in sequence.(The adjustment order of R, G, and B is only an example.)

3. For each of the R, G, and B lenses, observe the color aberration generated on the outer circumference of the cross-hatch bright line at the center section (3 pitches vertically and horizontally from the center.)

4. If the lens adjustment knob is turned clockwise, viewed from the front, the color aberration changes as follows.

Pre Set fully clockwise.

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Page 23

RED

CHROMATIC

ABERRATION

OR NO COLOR

RED

CHROMATIC

ABERRATION

CHROMATIC ABERRATION

LENS

FIXING SCREW

CROSS-HATCH

CONVERGENCE ADJUSTMENT

Lens Change of color aberration

R Lens Red Crimson G Lens Blue Red B Lens Purple Green

5. In case of G lens, set to the point where the chromatic aberration switches from blue to red. If the chromatic aberration appearing all over the screen is not the same, observe the vertical bright line at the center of the screen and set to the position where red chromatic aberration slightly appears inside and blue outside (reference value: 1~3mm) within the crosshatch pitches specified in next table. When the red chromatic aberration appearing at both sides of the bright line is not equal, observe the side with larger chromatic aberration when adjusting.

Set Size Pitch between L

50" 3.0 cross-hatch pitches 60" 3.0 cross-hatch pitches

7. In case of B lens, set to the position where the chromatic aberration changes from purple to green. As shown below, observe the vertical bright line at the center and set to the position where green chromatic aberration slightly appears inside and purple outside (reference value: 1~3mm) within the cross-hatch pitches specified in next table.

SLIGHTY BLUE CHROMATIC ABERRATION

Set Size Pitch between L1 & L2

50" 3.0 cross-hatch pitches 60" 3.0 cross-hatch pitches

6. In case of R lens, set to the position where the chromatic aberration changes from red to crimson. As shown below, observe the vertical bright line at the center and set to the position where the crimson chromatic aberration slightly appears inside and red outside (reference value: 1~3mm) within the crosshatch pitches specified in next

PURPLE CHROMATIC

ABERRATION

SLIGHTY GREEN

Set Size Pitch between L

50" 3.0 cross-hatch pitches 60" 3.0 cross-hatch pitches

NOTES:

1. Fixing screw 2. Color aberration

COLOR

ABERRATION

table.

PV152 2-8 PROJO

SLIGHTY CRIMSON

3. Since the G light is very important for picture quality and performance, pay special attention in its adjustment.

NOTE: Be careful not to touch the lens with your fingers

when adjusting.

Page 24

HD MODE

PROGRESSIVE MODE

BEFORE

USE CURSOR

KEYS TO MOVE

DOTTED LINES

BETWEEN BENT

CONVERGENCE ADJUSTMENT

4. For red, setting to the center between red and crimson is optimum.

5. For blue, setting to the center between purple and green is optimum.

DCU PHASE DATA SETTINGS

Adjustment Preparation

1. Cut off adjustment should be finished

2. VIDEO CONTROL: Factory Preset Condition

Adjustment procedure PROGRESSIVE MODE

1. Receive any NTSC signal (Set is in Progressive mode)

2. Push “SERVICE ONLY” SW on Deflection PWB (Enter to DCU ADJ. Mode)

3. Push (?) key on R/C. (Green cross hatch is displayed). Then push (QUIT) key on R/C. (Character pattern is displayed. This is the PHASE setting mode)

4. Set PH-H phase data as shown below using (4) and (6) key.

5. Set PH-V phase data as shown below using (2) and (5) key.

6. Set CR-H phase data as shown below using (<) and (>) key.

7. Set CR-V phase data as shown below using (up) and (down) arrow keys.

8. Push (?) key on R/C to exit from the PHASE mode.

9. Push (-)* key on R/C 2 time to write the phase data to the E2PROM.

10.When Green dots are displayed, push (MUTE) key to return to DCU ADJ. mode.

11. Push “SERIVCE ONLY” SW to return to RF or VIDEO mode.

HD MODE

12. Receive any HD signla (Set is in HD Mode)

13. Repeat (2)~(11) procedure again.

PROGRESSIVE MODE

1) Receive any NTSC crosshair signal.

2) Screen Format is PROGRESSIVE.

3) Press the SERVICE ONLY switch on the deflection PWB

and display the Digital Convergence Crosshatch pattern.

4) Mark the center of the Digital Convergence Crosshatch

Pattern with finger and press the SERVICE ONLY switch to return to normal mode.

5) Enter the I2C Bus alignment menu and select Item [12] H POSI and adjust the data so that the center of Video matches the location of the Digital Crosshatch pattern noted in step {4}.

6) Exit from the I2C Menu.

HD Mode Adjustment

1) Receive any 2.14H signal.

2) Screen Format is HD.

3) Press the SERVICE ONLY switch on the deflection PWB and display the Digital Convergence Crosshatch pattern.

4) Mark the center of the Digital Convergence Crosshatch Pattern with finger and press the SERVICE ONLY switch to return to normal mode.

5) Enter the I2C Bus alignment menu and select Item [12] H POSI and adjust the data so that the center of Video matches the location of the Digital Crosshatch pattern noted in step {4}.

6) Exit from the I2C Menu.

ACTIVE

VIDEO

CENTER

FROM

STEP (5)

LINES FIRST

CHASSIS HORIZ PHASE (COARSE) ADJUSTMENT Adjustment Preparation:

1) Cut Off, DCU Phase adjustments should be finished.

2) Video Control: Brightness 90%, Contrast Max.

Adjustment Procedure

PV152 2-9 PROJO

PHASE MODE: PHASE MODE: PH-H: BB PH-V: OC CR-H: 4C CR-V: 00

PH-H: BB PH-V: O7 CR-H: 4C CR-V: 0C

THEN USE NUMBER KEYS TO MATCH INTERNAL

CROSSHATCH CENTER TO ACTIVE VIDEO CENTER

AFTER

RASTER INCLINATION ADJUSTMENT (DEFLECTION YOKE) Adjustment preparation

1. The set can face any direction.

2. Input the single cross test signal.

Page 25

E 1

Crosshatch (Green)

E1 2mm

CONVERGENCE ADJUSTMENT

3. Set video conditions to factory reset.

4. The lens focus adjustment should have been completed, screen format should be progressive.

5. The electric focus should have been coarse adjusted.

6. The digital convergence RAM should be cleared (uncorrected state). With the TV set off, press and hold the service switch located on the Power/ Deflection PWB and then press the power button.

7. Start adjustment 20 minutes or more after TV is turned on.

Adjustment procedure

1. Apply covers to the R and B lenses and project only green light or short 2P plug on R & B.

2. Turn the G deflection yoke and adjust the vertical raster inclination.

3. Then, remove the cover of R or B lens and project red or blue light together on the screen.

4. Turn the deflection yoke of R or B and set so that the inclination of R or B with respect to the green light is as shown below on the top and bottom sides.

5. After raster inclination adjustment, fixing screw of DY should be screwed with 12+2kg-cm torque.

3. Set video conditions, Brightness to 90% and Contrast MAX.

4. Receive cross-hatch signals. (Use of internal crosshatch signals allowed.) Raster Tilt should be finished.

5. Screen format should be Progressive.

Adjustment procedure

1. Green (G) tube beam alignment adjustment. Shortcircuit 2P subminiature connector plug pins of Red (R) and Blue (B) on the CPT boards and project only Green (G) tube.

2. Put Green (G) tube beam alignment magnet to the cancel state as shown below.

3. Turn the Green (G) static focus (Focus Pack) counterclockwise all the way and make sure of position of cross-hatch center on screen. (Halo state.)

4. Turn the Green (G) static focus (Focus Pack) clockwise all the way. (Blooming state.)

Green Red or

Blue

E 2

Notes:

1. If internal cross-hatch does not appear after clearing RAM data, press service switch again, on POWER/ DEFLECTION PWB.

2. To restore old RAM data, turn TV off and on.

BEAM ALIGNMENT Adjustment preparation

1. Adjust at least 30 minutes after turning on power switch.

5. Turn two magnets forming alignment magnet in any desired direction and move cross-hatch center to position found in (3).

6. If image position does not shift when Green (G) static focus (Focus Pack) is turned. Green (G) beam alignment has been completed.

7. If image position shifts when Green (G) static focus (Focus Pack) is turned, repeat (2)-(6).

8. Conduct beam alignment for Red (R) focus: Focus Pack UFPK, Blue (B) focus: Focus Pack UFPK.

9. Upon completion of adjustment, fix beam alignment magnets with white paint.

VERT & HORIZ PICTURE POSITION ADJUSTMENT Adjustment preparation

1. Select signal on main picture.

2. Video settings have to be at normal condition.

Adjustment procedure

1. Press the SOURCE and POWER button on Control Panel at same time to access VIDEO CHROMA ADJUST mode.

2. Raster inclination, centering, horizontal and vertical

PV152 2-10 PROJO

amplitudes, and optical focus adjustment should be completed.

2. Select H POSI and V POSI using 56 buttons.

3. Adjust the H POSI (HORIZONTAL) and VPOSI (VERTICAL) position using 34 buttons.

Page 26

CONVERGENCE ADJUSTMENT

4. Press MENU button to exit VIDEO CHROMA ADJUST mode.

5. Select single PINP mode and move the sub picture, using the MOVE button. Distance between PINP and edge of screen should be equal when moved. If it is not, repeat (1) ~ (5).

NOTE: For ZP94/95 Models check the position of MULTI

PINP mode. Check the right edge of the sub pictures for MV-4 to make sure there is no separation between the MULTI PINP and the edge of the screen.

HORIZONTAL SIZE

· Digital Convergence RAM should be cleared. With Power Off, press and hold the Service Only Switch on the Deflection PWB, then press Power.

Adjustment Prerparation

1. The set can face east or west

2. Set video conditions to factory preset.

3. The electric focus should have been coarse adjusted.

4. Start adjustment 20 minutes or more after TV is turned on.

Adjustment Procedure

PROGRESSIVE MODE

1. Receive any NTSC signal.

2. Press the SERVICE ONLY SW on DEFLECTION PWB.

3. Locate the horizontal size VR (R683). Adjustable the horizotal size to the table below.

HD MODE

1. Input 1080i (fH=33.75kHz) component signal to VIDEO 1 or 2.

2. Press the SERVICE ONLY SW on DEFLECTION PWB.

3. Locate the horizontal size VR (R686). Adjustable the horizotal size to the following table.

VERTICAL SIZE

· Digital Convergence RAM should be cleared. With Power

Off, press and hold the Service Only Switch on the Deflection PWB, then press Power.

Adjustment Prerparation

1. The set can face east or west

2. Set video conditions to factory preset.

3. The electric focus should have been coarse adjusted.

4. Start adjustment 20 minutes or more after TV is turned on.

Adjustment Procedure

PROGRESSIVE MODE

1. Receive any NTSC signal.

2. Press the SERVICE ONLY SW on DEFLECTION PWB.

3. Locate the vertical size VR (R630). Adjustable the vertical size according to the table below.

Size l

50" 670mm 60" 775mm

Adjust Vertical Size until the size matches the chart below.

Size Progressive Mode HD Mode

50" 1050mm 1050mm 60" 1200mm 1200mm

Adjust Horizontal Size until the size matches the chart below.

BEAM FORM Adjustment preparation

1. The beam alignment should have been completed.

2. The raster inclination, centering, horizontal/vertical amplitude and optical focus adjustments should have been completed.

PV152 2-11 PROJO

Page 27

PRT Surface Side

True Circle Degree: a/b

LENS

FIXING SCREW

CONVERGENCE ADJUSTMENT

3. Set video conditions to Brightness to 90 % andContrast to MAX.

4. Input the dot signal.

Adjustment procedure

1. Green CRT beam shape adjustment. Short-circuit 2P sub-mini connectors on Red and Blue CRT P.W.B.’s to project only the Green beam.

2. Turn the green static focus fully clockwise. (Blooming.)

3. Make the dot at the screen center a true circle using the 4-pole magnet as shown below.

4. Also adjust the Red and Blue CRT beam shapes according to the steps (1) to (3).

5. After the adjustment has been completed, return R,G and B static VRs to the just focus point.

4-Pole Beam Alignment

Zero Field Spacer (No Adjustment)

Magnet

2-Pole Beam Alignment Magnet

8. Rotate the cylinder back and forth to obtain the best focus point, while observing the Cross-Hatch. (Observe the center of the screen).

Hint: Located just below the screen are the two wooden

panels. Remove the panels to allow access to the focus rings on the Lenses.

9. After completing optical focus, tighten the fixing screws for each lens.

10. When adjusting the Green Optical focus, be very careful. Green is the most dominant of the color guns and any error will be easily seen.

11. Repeat Electrical Focus if necessary.

Specification: .09-1.1

LENS FOCUS ADJUSTMENT

Preparation for adjustment

1. Receive the Cross-hatch pattern signal.

2. The electrical focus adjustment should have been completed.

3. Deflection Yoke tilt should have been adjusted.

4. Brightness = 50%

5. Contrast = 60% to 70%

Adjustment procedure

6. Short the 2 pin sub-miniature connector on the CRT P.W.B. TS, to produce only the color being adjusted and adjust one at a time. (The adjustment order of R, G and B is just an example.)

7. (See Figure below) Loosen the fixing screw on the lens assembly so that the lens cylinder can be turned. (Be careful not to loosen the screw too much, as this may cause movement of the lens cylinder when tightening.)

STATIC FOCUS ADJUSTMENT Adjustment preparation

1. The lens focus should be finished.

2. Set video conditions to Contrast to MAX and birightness to 50%.

3. Receive the cross-hatch pattern signal.

4. Apply covers to the lenses of colors other than the color to be adjusted and project a single color.

Adjustment procedure

1. Red (R), Green (G) and Blue (B) static focus adjustment. Vary the static focus VR(focus pack UFPK) and make the center of the cross-hatch pattern clearest.

2. Observe the corners of the picture and check that the focus does not get conspicuously worse.

PV152 2-12 PROJO

Page 28

OBSERVING POINTS

OBSERVING POINTS OF THE

RGBRGBScreenVRFocusVR

USPAC

CONVERGENCE ADJUSTMENT

CORNER OF THE PICTURE

BLUE DEFOCUS ADJUSTMENT Adjustment preparation

1. Optical and electrical focus adjustment should have been completed.

2. The convergence adjustment should have been completed.

3. Set Video conditions to factory reset.

Adjustment procedure

1. Input a Crosshatch Signal to VIDEO input.

2. Short-circuit 2P sub-mini connectors on the red and green CPT P.W.B.s to display only the blue beam.

3. Turn the B Focus VR(Focus Pack) fully clockwise.

4. Adjust BLUE defocus according to the following

specifications. 1mm on each side equaling 2mm total See figure Below.

Blue Defocus “Sticking Out”

Center of Blue crosshatch line

FOC

WHITE BALANCE ADJUSTMENT

1. Screen adjustment

2. High brightness white balance

3. Low brightness balance

Screen Adjustment VRs Drive Adjustment VRs

Red: on Focus Pack Red: R829R on CRT P.W.B. Green: on Focus Pack Green: R879G on CRT P.W.B. Blue: on Focus Pack N/A

Adjustment VRs: Screen adjustment VRs on Focus Block Drive adjustment VRs on CRT P.W.B. Red Drive = R829R Green Drive = R879G

Preparation for adjustment

1. Start adjustment 20 minutes or more after the power

is turned on.

2. Turn the brightness and black level OSD to minimum

by remote control.

3. Receive a tuner signal, (any channel, B/W would be

best).

4. Set the drive adjustment VRs (Red R829R and Green

R879G) to their mechanical centers.

Adjustment procedure

1. Go to I2C ADJ. Mode. (With power ON, press DTV/SAT

and Cursor Down buttons at the same time. Service Menu is displayed.)

2. Choose SERVICE item Number [2] of I2C ADJ. Mode.

(Select ON by Cursor Right and the Vertical will collapses).

3. Gradually turn the screen adjustment VRs (red, green,

blue) clockwise and set them where the red, green and blue lines are equal and just barely visible.

4. Return Service item on I2C ADJ to Off by Cursor Right.

Number [2].

Adjust the Sub Brightness Number [1] SUBBRT using I2C Bus alignment procedure so only the slightest white portions of the raster can be seen.

5. Input a gray scale signal into any Video input and

select that input using the INPUT button on the remote or front control panel.

6. Turn the Brightness and Contrast OSD all the way up.

7. Make the whites as white as possible using the drive

adjustment VRs (Red R829 and Green R879).

8. Set the Brightness and Contrast to minimum. (10800

Kelvin)

9. Adjust the low brightness areas to black and white,

using screen adjustment VRs (red, green, blue).

10. Check the high brightness whites again. If not OK,

repeat steps 6 through 9.

11. Press the MENU key on remote to Exit Service Menu.

PV152 2-13 PROJO

Page 29

CONVERGENCE ADJUSTMENT PROCEDURE

ADJUSTMENT POINT

SUB BRIGHTNESS ADJUSTMENT Adjustment preparation

1. Start adjustment 20 minutes or more after the power is turned ON. Receive the color bar signal.

2. Set the contrast and color controls to minimum.

Adjustment procedure

1. Go to “Sub Brightness” adjustement in VIDEO CHROMA ADJUST mode (press Source and Power button on Control panel at the same time), using 56 buttons and then 4 button.

2. Then adjust “Sub Brightness” using 34 buttons to increase or decrease the value, according to figure. (Visually adjust).

3. After adjustment, press MENU button to exit VIDEO CHROMA ADJUST mode. (Data is stored in memory).

NOTE: When selecting SUB-BRIGHTNESS mode, the

microprocessor sets the CONTRAST and COLOR to MIN. automatically, but make sure that the other conditions are center. Directly observe the screen by eye without using a mirror.

HD Mode Adjustment:

1. Receive any 2.14H 33.75kHZ signal.

2. Display Format is HD mode.

3. Enter the I2C Bus alignment menu and select Item [12]

HPOSI

4. Adjust the data using the left and right cursor keys and balance the Left and Right hand side.

5. Press the “MENU” button to exit from the Service Menu.

DIGITAL CONVERGENCE ADJUSTMENT Adjustment preparation

1. Receive an RF or video signal.

2. Set controls to factory preset.

3. Install jig screen on the set.

4. Note the center of the video pattern displayed. This

is necessary to match dotted lines (adjustment point viewed) and actual point that is adjusted and displayed by the video signal.

5. Press the service only switch (on POWER/DEFLECTION

PWB). The pattern displayed is now the digital convergence mode.

Fade to black

18 HORIZONTAL POSITION (FINE) Adjustment Preparation:

1. Video Control: Brightness 90%, Contrast Max. Adjustment Procedure

PROGRESSIVE MODE:

1. Receive any NTSC crosshatch signal.

2. Screen Format is PROGRESSIVE

3. Enter the I2C Bus alignment menu and select Item [12]

HPOSI

4. Adjust the data so that the Left and Right hand side are equal.

5. Press the “MENU” button to exit from the Service Menu.

6. When performing a complete digital convergence adjustment CLEAR DATA in RAM. See 2.6 (1)-(7).

7. To clear data turn TV set off. Press and hold the service switch and then press POWER on.

NOTE: If only minor adjustments to convergence are

needed, the jig screen is not necessary. Use digital data stored in memory and one color as a reference(red,green or blue). DO NOT CLEAR DATA and WRITE to ROM memory.

PV152 2-14 PROJO

Page 30

DIGITAL CONVERGENCE REMOTE

MBR3475Z

924-10092

AUXILLIARY

CURSOR RIGHT

(3X3 ADJUSTMENT)

RASTER

ROM WRITE

DIGITAL CONVERGENCE REMOTE CONTROL

PHASE

(13X9 ADJUSTMENT)

BLUE

CURSOR LEFT

CURSOR DOWN

RED

(7X5 ADJUSTMENT)

REMOVE COLOR

INITIALIZE

CURSOR UP

GREEN

ADJUSTMENT CROSSHATCH /

VIDEO MODE

POSITION ROM READ

PV152 2-15 PROJO

Page 31

CONVERGENCE ADJUSTMENT PROCEDURE

CONVERGENCE POINT ADJUSTMENT Adjustment preparation

1. Select color to adjust. “DISPLAY”-Green

“O”-Red

“SOURCE”-Blue

2. Use 4,6,2, and 5 to move the cursor position(dotted lines).

3. Use cursor buttons to move the convergence point.

4. Three adjustment modes are available:

1. (3x3) Press “DISPLAY” 5 times (only works when DCU is in uncorrected state).

2. (7x5) Press “O” 5 times

3. (13x9) Press “SOURCE” 5 times

For touch-up, only the (13x9) mode is necessary. This will adjust every cross-hatch intersection point on the screen.

For complete adjustment, start with (3x3) mode. This will adjust center point and eight edge points only, but will greatly reduce adjustment time. Then use (7x5) mode, and finally (13x9) mode to finish convergence.

If “S” distortion appears between cross-hatch lines repeat (7x5) mode to change calculation process while adjusting to remove distortion, then return to(13x9) mode to finish touch-up convergence.

9. Press ”-” (ROM write) mode.

HD MODE

Receive any HD signal and repeat progressize mode procedure.

NOTES:

1. Display only green for easier adjustment and match to jig screen. Press “MENU”, THEN PRESS “DISPLAY”.

2. Write Data to ROM after green adjustment. Once green has been confirmed to match jig screen, the jig screen can be removed. Do not readjust the green color after jig screen has been removed. This is now your reference color.

3. Display green and red only and match red to green.

4. Display all colors and match blue to green and red. Touch-up red color if necessary.

5. Existing DATA in ROM can be read by pressing the SWAP button 2 times. This data can be used after replacing a component(CRT,DY,etc.) Where complete convergence adjustment is not necessary be careful not to overwrite this data. DO NOT write cleared RAM data into ROM or a completec convergence adjustment will be necessary.

WARNING: Advanced Convergence Adjustment

Procedure is to be performed only when replacement of the Small Signal Main Module or one or more the the CRT’s is replaced.

RASTER CENTERING

1. Press the FREEZE button to enter the Raster Phase Adjustment Mode. Two additional lines appear, one near the top, and one near the bottom of the screen.

Adjustment procedure

1. Recelive any NTSC signal.

2. Start adjustment at the center of the screen.

3. Continue adjustment at next closest position.

4. Adjust center area first, ending with edge sections.

5. When convergence is acceptable, press “-” to write

data to ROM memory. ROM WRITE? is displayed to alarm system that ROM will be overwritten with new data. Press the “-” button again to write displayed data to ROM.

6. DATA WRITE TO ROM will take approximately 4 seconds and no picture will be displayed.

7. Green dots will be displayed when operation is completed.

8. Press MUTE to return to convergence pattern, then confirm again convergence is acceptable.

PV152 2-16 PROJO

Press the MENU button to see all colors if the center cross is

other than White.

2. Press the Cursor Keys to match the selected color to

the green at the geometric center of the screen.

3. Press the RECALL, 0, or SOURCE buttons to select the

next color to be adjusted.

0= Red / Green (Yellow) SOURCE= Green / Blue (Cyan) RECALL= Green Only

4. Press Freeze button to exit the Raster Phase Mode. (The

two lines disappear)

Page 32

Starting Adjustment Point

Location (Intersection of

Lines symmetrically aligned at the

G-Only Screen

Red Alignment

Yellow Cross-hatch

Magenta Cross-hatch

CONVERGENCE ADJUSTMENT PROCEDURE

CONVERGENCE 3X3 Green 3x3 Mode Alignment

1. Start with power off, press the service button SKO1 and

hold, then press the front panel POWER button at the same time. Set should come on with distored convergence.

Note: Un-adjusted convergence will appear, DO NOT PRESS

ROM WRITE (“MOVE” button twice). If you do so, you will save this un-adjusted convergence data.

2. Press DISPLAY button 5 times to access 3x3 Mode.

3. Press 2,3,4, and 6 keys to select the center adjustment

point (if not already selected).

G-Only Screen

Blinking Cursor)

4. Press the CURSOR KEYS at the selected adjustment point

to match the Green horizontal and vertical lines to the Screen Jig lines.

Adjustment Points

PRT.

CONVERGENCE 7X5 Green 7X5 Mode Alignment

1. Press the 0 button 5 times to enter the 7X5 Adjustment

Mode.

2. Press the MENU button and then the RECALL button

again to project the Green color only.

3. Repeat the same 3X3 steps 3 to 5 for the GREEN 7X5

Mode Adjustment.

Red 7X5 Mode Alignment

1. Press the 0 key to select the RED + GREEN internal cross-

hatch signal.

2. Repeat the 7X5 steps 2 to 3 for the Red 7X5 adjustment.

Blue 7X5 Mode Alignment

3. Press the AVX ket to select the BLUE + GREEN colors.

4. Repeat the 7x5 steps 2 to 3 for the Blue 7X5 mode

adjustments.

Red and Blue 3x3 Mode Alignment

1. Press the 0 key to project the RED + GREEN internal

cross-hatch colors.

Cursor blinks selected color

Internal cross-hatch is Yellow when the Red and Green lines

match, and Cyan when the Blue and Green Match

2. Press the CURSOR Keys at the selected adjustment point

to match the RED or BLUE horizontal/vertical lines tp the Green cross-hatch lines.

3. Press the SOURCE key to select the BLUE and GREEN

cross-hatch colors. Perform step 2 and 3 for the BLUE

PV152 2-17 PROJO

Blue Alignment

CONVERGENCE 13X9 Green 13X9 Mode Alignment

1. Press the SOURCE button 5 times to enter the 13X9 Mode.

2. Press the MENU button and then the RECALL button again to project the GREEN PRT only.

Page 33

Yellow Cross-hatch

Magenta Cross-hatch

CONVERGENCE ADJUSTMENT PROCEDURE

3. Repeat the same 3X3 steps 3 to 5, for the Green 13X9

Mode Adjustment.

Red 13X9 Mode Alignment

1. Press the 0 key to select the RED + GREEN internal cross-

hatch signals.

2. Repeat the 7x5 steps 2 to 3 for the Red 13X9 mode

adjustments.

Blue 13X9 Mode Alignment

3. Press the SOURCE key to select the BLUE + GREEN colors.

4. Repeat the 7x5 steps 2 to 3 for the Blue 13X9 mode

adjustment.

Red Alignment

Blue Alignment

ROM WRITE Storing the New Data

Press the “-” button twice to store the convergence data

in the EPROM. (Screen goes blank for 4 seconds)

1. 1st press of “-”

2. 2nd press of “-”

3. Operation complete (Green Dots appear after completion of operation).

PV152 2-18 PROJO

Page 34

TROUBLESHOOTING

No Raster

Is Power LED on Control Panel on?

Yes No

Turn off power wait (3) seconds, turn ON carefully

inspect all Green LED's on SMPS.

Did all 5 LED's turn off at the same time?

Find which LED fails to light or dims first on SMPS.

D949

-SMPS STBY +11v

Check D918,I906,I007,I009

D931

Yes

-SMPS SW +5v

Check D918,I907,I011,I012

D927

-SMPS STBY +7v

Check D918,I905,I008,I010

D912

-SMPS SW +29v (Audio)

Check E992,D910,IC01

Is Red LED Blinking on SMPS?

Yes

Is voltage at pin(4) of I901 14v-18v?

Check D904,R905,R906,C907,F901,R902

Has protector E991 blown?

Check I901,D961,R918,R919,Q901

Replace E991

Replace I901

Check R918,R919

Does raster appear with G and K of

Q905 shorted?

Yes

Replace Q905

Check Q905,D921,D908,I902,Q902,D923

Is Click of Relay heard

Is the voltage at pin(51) and (33) of I0013.3v?

Yes

Is Voltage at pin(53) of I001 low? Is the voltage at PQS2 pin(1) 7volts?

Yes

Check Q003,Q004,D922,S901,Q002

Yes

Is voltage at pin(23) of I001"AC Clock" in?

Yes

Check Q008,Q009,I904,D909

Yes

Check Q029,D035,L004

D927-SMPS STBY +7v

Check D918,I905,I008,I010

Check I001 pin(54)

Yes

Does reset occur?

Check I001 pin(62)

Yes

is 4mhz present?

Check I002

Replace I001

Check I001 pin(63)

Is 1.6v present?

Replace I001

Replace X001

Replace I006

PV152 2-19 PROJO

Page 35

Turn off power wait (3) seconds, turn ON ,carefully

inspect Green LED.

Does the Green LED tun off at the same time?

Yes

Check EP98,DP11,Q777,QH01,TH01,DH11, on

deflection module.

Does raster appear with G and K of

Yes

QP01 shorted?

Check QP01/ Replace QP01

Is the base of Q751 normal?

Yes

Check I701 pin(15) H-out,pin(8) Hvcc,

QP04,DP35,DP36

Are voltages of both ends of T751(primary side)

normal?

Yes

Check Q777,QH01,T751,T752

Check T751,R754,R755

TROUBLESHOOTING

Inspect Red LED (DP37) on Deflection, Blinking?

Yes

No Yes

Yes

Is voltage at pin(4) of IP01 14v-18v?

Has protector EP01 blown?

Check IP01,

RP10,RP11,RP12

Check IP01,DP04&5

RP10,RP11,RP12

Replace EP91

Check PQD1 for 120vac

Check DP04&5, Rp02&3,CP05

RP10,RP11,RP12

CheckVR923 on SMPS

Poor Video Sync

Yes

Is voltage on I601 pin (10) +28VDC?

Are Voltages on connector PZC pins (1,3,5,) normal?

Yes

Is waveform on I601 pin (3) as shown?

Refer to diag (1) below.

Yes

Is waveform on PSD3 pin (8) as shown?

Refer to diag (2) below.

Replace Deflection PWB

Replace Small Signal PWB

Poor White Ballance

Replace CRT PCB assy.

Replace Small Signal PWB.

No Color

Is input signal RF or Composite?

Diag 1

4.00Vpp

Yes

Is waveform on I201 pins (7,9) normal?

Replace Small Signal PWB.

Replace 3 Line PWB.

Diag 2

3.20Vpp

PV152 2-20 PROJO

Page 36

POWER / DEFLECTION P.W.B. DIAGRAM

CONVERGENCE

HEAT SINK

SK01:

SERVICE

SWITCH

R630

V.Size

Adj.

Convergence Unit

IK01

QK01

YOKE PLUGS

PMR

PMG

PMB

R686

H.Size

Adj. HD

Digital

PSD1

D656

D657

Q657

QH01

IK04 IK05

PCGPCR

TH01

PCB

FBT

High Voltage ADJ.

RH44

PDF

QF06

REAR VIEW

RH44

R683 H.Size Adj. Progressive

Mode

PV152 2-21 PROJO

D752 Q777

Q701

I601

PSD1 PSD2 PSD3

+B 120V Green LED

PQD2

DP29

PDC1

DP01

IP01

TP91

DP37

Red LED

PQD1

Page 37

SMALL SIGNAL P.W.B. DIAGRAM

MICROPROCESSOR

PFS

IC01

DIGITAL BOARD

HC4051

SURROUND PWB

I007

PP1

LINE COMB

PWB

I010

I011

I001

VIDEO

PWB

I012

U201

Main

Tuner

U202

PinP

Tuner

REAR VIEW

U205

FLEX

Conv.

and

PinP

Unit

TERMINAL PWB

U204

3D/ YC

QS4

PV152 2-22 PROJO

Page 38

CRT AND CONTROL P.W.B. DIAGRAM

DAG

GND

E831

PRV

DAG

GND

PGV

P851

P801

W801

R879

P852

Cathode

GREEN

R829

PTSG

PTSR

SHORT TO

KILL THE

COLOR

SHORT TO

KILL THE

COLOR

E801

PVB

DAG

GND

E8A1

P8A1

W801

P802

Cathode

RED

P8A2

CATHODE

BLUE

PTSB

SHORT TO

KILL THE

COLOR

PV152 2-23 PROJO

Page 39

CHASSIS POWER SUPPLY P.W.B.

1 9

1 11

I905

I907

1 10

PQS2 PQU2

D912 Audio F SW +29V GREEN

D927 STBY +7V GREEN

D931 SW +5V GREEN

7 1

1 8

PQD2PQS1PQU1

D903

IC POWER

MONITOR RED

PQD1

2 1

S901

F901

6 Amp

D901

PQS4

REAR

VIEW

I906

D949 STBY +11V GREEN

SWITCHING

S904

S903

= RED or GREEN LED USED FOR VISUAL TROUBLESHOOTING

TRANSFORMER

I901

T901

S902

PV152 2-24 PROJO

Page 40

SM09

CONTROL P.W.B.

SOURCE

VOL -

VOL +

CH -

CH +

POWER

J F P

V F P

PV152 2-25 PROJO

Page 41

CIRCUIT DESCRIPTION

POWER SUPPLY OPERATION EXPLANATION

POWER ON AND OFF

The power supply in the ZP94 & 95 chassis works very similar to the previous models, with only a few exceptions. This power supply runs all the time when the AC is applied. The use of the power supply creating Standby Voltage supplies eliminates the need for a Standby transformer. The following explanation will describe the Turning ON and OFF of the projection television. The Microprocessor I001 generates the ON-OFF control signal from pin (53). The logic states of this pin are High = On and Low = Off. When the set is turned On, the high from pin (53) is routed to the Relay Driver Q002 base. This turns on Q002 and it’s collector goes low. This On/Off from the Relay Driver Q002 will perform the following :

· Turns on the SW5+V I907 and SW+12V I908 regulators. Which do not operate in Standby.

· Turns on the Shut Down “Power Shorted” detection circuit, Q908 and Q909.

· Turns on the Horizontal Vcc supply to the Horizontal and Vertical drive IC, I701.

· Turns on the Relay providing AC to the Deflection Power Supply on the Power/Deflection PWB.

B+ GENERATION FOR THE SUB POWER SUPPLY DRIVER IC:

Vcc for the Driver IC is first generated by the AC input. This voltage is called Start Up Voltage. I901 requires 21V DC to operate normal. However, it will begin operation at

14.5V DC on pin (4) of I901.When AC is applied, AC is routed through the main fuse F901 (a 5 Amp fuse), then through the Line filters L901, 902, 903 and 904 to prevent any internal high frequency radiation from radiating back into the AC power line. After passing the filters it arrives at the main full wave bridge rectifier D901 where it is converted to DC voltage. One leg of the AC is routed to a half wave rectifier D902 where it is rectified, routed through R905 and R906 (both a 5.6K ohm resistor), filtered by C907, clamped by a 30V Zener D904 and made available to pin (4) of I901 as start up voltage. The Red LED D903 is illuminated by this power supply. When this voltage reaches 14.4Vdc, the internal Regulator of I901 is turned On and begins the operation of I901. The primary control element of the power supply is I901 (the Switching Regulator IC), in conjunction with transformer T901. These two components, along with the supporting circuitry, comprise a closed loop regulation system. Unlike previous Pulse Width Modulated (PWM) Switch Mode power supplies, the regulation system in the this chassis utilizes Frequency Control Modulation with an operational frequency of 85KHZ to 100KHZ, corresponding to full load and no load conditions, respectively. Primary regulation is provided by Q902, I902 and Q910, regulating the switching frequency at pin (3) of I901 via pin 1, the regulation in-

put to the IC. Three primary voltages are developed that are needed to sustain run, maintain regulation, and support shutdown circuitry; Run Voltage generated from pin (8 and 9) of T901, +28V used for regulation, and STBY +11V, respectively. The “STBY” represents “always on, designating a supply that is active whenrver the unit is connected to AC power. The Power Supply utilizes a Shutdown circuit that can trigger Q905 from 16 input sources. (6 of these are not operational in Standby mode). I903 is activated by Q905, applying gate voltage to Q901, which grounds out the Vcc at pin (4) of I901, disabling the power supply.

Audio Front 29V Regulator SW+29V indicated by D912:The Audio Front 29V supply is generated from pin (17) of T901. This output is protected by E992, rectified by D910 and filtered by C918. This supply is routed to the Rear Audio Output IC IC01. This voltage is what illuminates the Green Visual Trouble Shooting LED, D912.

STBY+11V Regulator I906 indicated by D949: The STBY+11V supply is generated from pin (11) of T901. This output is rectified by D918 and filtered by C928. This supply is routed to the Stand By +11 Regulator I906 pin (1). This voltage is what illuminates the Green Visual Trouble Shooting LED, D949.

STBY+7V Regulator I905 indicated by D927:The STBY+7V supply is generated from pin (11) of T901. This output is rectified by D918 and filtered by C928. This supply is routed to the Stand By +7 Regulator I905 pin (1). This voltage is what illuminates the Green Visual Trouble Shooting LED, D927.

The sub power supply in theZP94 & 95 chassis works very similar to the previous models, with some very significant exceptions. This power supply runs at 50% efficiency when the AC is applied with the set OFF. The use of the power supply creating the STBY+11V supply eliminates the need for a Standby transformer. The following explanation will describe the Turning ON and OFF of the projection television.

POWER SUPPLY OPERATIONAL FREQUENCY DURING STANDBY:

When the Horizontal deflection is defeated, the power supply no longer has a deflection load. This low current demand is detected by the three resistors connected to the source of the internal Switch MOS FET inside I901 via pin (2). Pin (1) of I901 is the over current detection pin, however it is also the current demand sensing pin. When the current demand is low due to horizontal defeat, pin (1) will be less than 1.4V and the internal frequency will switch to 200Khz. This is caused by the Quasi Resonant circuit operation. This reduction of power supply frequency will move the frequency above the Bell of the power supply transformer and all secondary voltages will reduce to approximately 1/ 2 of their normal voltage.Due to the fact that the power

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CIRCUIT DESCRIPTION

supply is still operating at 1/2 voltage output, the Green LEDs used for visual trouble sensing will reduce in intensity, however they will remain lit. With the exception of the SW+12V and SW+5V regulator. Which are turned off in Stand By.

POWER SUPPLY FREQUENCY OF OPERATION DURING RUN:

When the Horizontal deflection is in operation, the power supply frequency fluctuates in accordance to screen brightness, causing differing demands for High Voltage replacement. The normal operational range for the power supply is between 80 KHz to 100 KHz. The lower the frequency, the higher the current supplied to the load. During Stand-By, it operates at 200KHz.

AC LOSS DETECTION:

AC is monitored by the AC Loss detection circuit. The AC input from PQS1 pin (10) is rectified by DN09. This charges up C009 and through DN08 it charges C008. When AC is first applied, C008 charges slightly be-hind C009 preventing activation of Q001. If AC is lost, C009 discharges rapidly pulling the base of Q001 low, however DN08 blocks C008 from discharging and the emitter of Q001 is held high. This action turns on Q001 and produces a high. This high is routed through D029 to the base of Q022 turning it ON. The collector goes low and pulls the base of Q023 low turning it ON. The emitter of Q023 is connected to STBY +11V, so when it turns ON, its collector output goes HIGH. This high is now called V Mute 1.

SW+9V AND SW+5V REGULATOR OPERATION IN STAND-BY:

Both of these ICs as well as the STBY+11V and the STBY+7V regulators are DC to DC converters just like last year. This is because of the wide range of input voltages from Stand-By to Normal operation of the Power Supply. The SW+12V regulator (I908) and the SW+5V regulator (I907) are shut off during Stand-By mode. This is accomplished by Q002 and Q903. When the High for the power On/Off pin (53) of the Microprocessor is inverted by the relay driver Q002, and routed through the PQS1 connector pin (8). It is detected by Q903, it’s collector will go low. This will pull pin (5) of I907 and I908 low, turning off the two DC to DC converters.

SHUT DOWN CIRCUIT:

Shut down occurs when the shutdown SCR Q905 is activated by gate voltage. When Q905 receives gate voltage of

0.6V, the SCR fires and give a ground path for the emitter of the LED inside I903. The light produced by turning on this LED turns on the internal photo receiver and generates a high out of pin (3). This high is routed to the gate of Q901 turning it on. This grounds pin (4) of I901 removing Vcc and the power supply stops working. The reason for the photo sensor I903 is to isolate hot and cold ground.

SOME SHUT-DOWN DETECTION CIRCUITS SHUT OFF DURING STAND-BY:

During Stand-By, all of the secondary voltages are reduced to approximately 50% of their normal voltage, except the STBY voltages. This could cause a potential problem with the Short Detection circuits for shutdown. To avoid accidental shut down, Q903 also controls the activity of Q908 and Q909. During Stand-By, Q903 is turned On. This allows the Base of Q908 to be pulled through D945. This action turns off Q908. When Q908 is off, it doesn’t supply emitter voltage to the collector of Q909. The base of Q909 is connected to 6 Low Detection in-puts. When the power supply operates at 50%, the Short Detection circuit could activate. By turning off Q909, no accidental shut down operation can occur.

SUB POWER SUPPLY VISUAL LEDs:

ZP94 & 95 Chassis has 5 Green and 1 Red LED on Sub Power Supply PWB. This chassis utilizes 5 Green LED’s in the power supply cold side and a Red LED in the HOT side. The power supply operates it two different modes, Standby and in Projection On mode.

TURNING ON THE DEFLECTION POWER SUPPLY

When the Projection Television is turned on, the Microprocessor outputs a high for Pin (35) which is inverted by Q002. This low is routed through the connector PQS1 pin (8) on the signal PWB to the Sub Power Supply PWB. It is then routed to Q903, its collector will go High. This will pull up pin (5) of I907 and I908, turning ON the two DC to DC converters. The output of both DC to DC converters I907 and I908, are used by the relay which supplies AC voltage to the Deflection Power Supply on the Power/Deflection PWB. The output of I907 SW+5V regulator supplies B+ for pin (3) of the relay S901. The output of I908 SW+12V drives the base of Q911 turning it On and grounding pin (4) of the relay S901. The relay now provides AC to the bridge rectifier on the Deflection Power Supply.

HORIZONTAL B+ ON AND OFF CIRCUIT:

When the power supply goes into Stand-By mode (TV Off), the Horizontal Drive signal for deflection is shut off This is accomplished by Q002 and QP04. The Low out produced from the Power On/Off pin 53 of the Microprocessor routed through Q002 located on the Signal PWB. This Low is sent through the PQS1 connector pin (8) to the Sub Power Supply PWB and then through PQD2 connector pin (1) and sent to the Deflection PWB. This Low is detected by the base of QP04 turning it ON and the SBY +11V connected to it’s emitter is made available at its collector. The collector is connected to the Deflection B+ pin (22) of the Horizontal and Vertical Drive IC, I701 via pin (8). This action stop I701 from producing a horizontal deflection drive signal.

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CIRCUIT DESCRIPTION

HIGH VOLTAGE DRIVE CIRCUIT:

When QN04 is turned on, the 11V standby will also be applied to the High Voltage Drive IC IH02 pin 14 via RN15 and DN13. When this occurs, the IC will stop generating the drive signal that is used to produce High Voltage via QH08, the High Voltage Driver. Again, this is done to prevent CRT burn, especially during sweep loss.

GREEN LED:

The Deflection B+ 120V supply is generated from pin (13) of TP91. This output is rectified by DP11 and filtered by CP17. This supply is routed to the Horizontal Drive Circuit and the High Voltage generation circuit. This voltage is what illuminates the Green Visual Trouble Shooting LED, DP29

POWER SUPPLY SHUTDOWN EXPLANATION

This chassis utilizes IP01 as the Osc.\Driver \Switch for the Deflection power supply, just as the previous chassis have done. This IC is very similar to the previous versions, however it does differ in Frequency (described previously). The Shutdown circuit (cold ground side detection), is used to turn off the Relay S901 via the following circuit, QP01 (the Shutdown SCR), Connector PQD2, Q911 the Relay Driver and the Relay S901. The Power Supply utilizes a Shutdown circuit that can trigger QP01 from 14 input sources. When any of these inputs cause a high on the gate of QP01, the relay disengages, disabling the deflection power supply. All of the Power Supply Shutdown circuitry can be broken down into the following five groups;

SHUT DOWN CIRCUIT:

Shut down occurs when the shutdown SCR QP01 is activated by gate voltage. When QP01 receives gate voltage of

0.6V, the SCR fires and give a ground path for the pin (5) of Connector PQD2 called PROTECT. This Low is routed to the Sub Power Supply PWB and is impressed on the base of the Relay Driver Transistor Q911 turning it Off. When Q911 turns Off the Relay S901 will disengage and remove the AC source from the Deflection Power Supply.

VOLTAGE LOSS DETECTION

1. Shorted 220V (DP31 and DP32) Inverted by QP03 then through DP22 The cathode of DP31 is connected directly to the 220V line. If it shorts this circuit is activated and pulls the base of QP03 low. This output High is routed through DP22 to the gate of the Shut Down SCR QP01.

2. Shorted SW+8V (DP33) Inverted by QP03 then through DP22 The cathode of DP33 is connected directly to the SW+8V line. If it shorts this circuit is activated and pulls the base of QP03 low. This output High is routed through DP22 to the gate of the Shut Down SCR QP01.

3. Shorted 28V (DP30) Inverted by QP03 then through

DP22 The cathode of DP30 is connected directly to the 28V line. If it shorts this circuit is activated and pulls the base of QP03 low. This output High is routed through DP22 to the gate of the Shut Down SCR QP01.

4. Shorted Side Pin Cushion Circuit (D760 and Q754) then through DP34 The Side Pin Cushion circuit is comprised of I651, Q652 through Q657 If a problem occurred in this circuit that creates a Low on the cathode of D760, the low will be routed to the base of Q754, turning it Off. This output High is routed through DP34 to the gate of the Shut Down SCR QP01.

5. Shorted Deflection Transformer or Misoperation (D756 and Q754) then through DP34 The Deflection circuit generates the actual Drive signal used in the High Voltage section. If a problem occurs in this circuit, the CRTs could be damaged or burnt. D757 is connected to D759 which is normally rectifying pulses off the Deflection Transformer T753. This rectified voltage is normally sent through D757, D756 to the base of Q754 keeping it On and it’s collector Low. If the Deflection circuit fails to produce the pulses for rectification, the base voltage of Q754 disappears and the transistor turns Off generating a High on its collector. This output High is routed through DP34 to the gate of the Shut Down SCR QP01.

6. Heater Loss Detection (DH26, DH27,QH07 and DP34) This voltage does not go to the CRTs.The Flyback Transformer TH01 generates a pulse called Heater. (Note: This does not go to the CRTs as heater voltage, it’s used for Excessive High Voltage Detection. If a problem occurs in this circuit, the Ex-cessive High Voltage Detection circuit wouldn’t operate. It would be possible for there to be High Voltage but the circuit detecting Excessive High Voltage couldn’t work. DH26 is connected to DH24 which is normally rectifying pulses off the Flyback Transformer TH01. This rectified voltage is nor-mally sent through DH26, DH27 to the base of QH07 keeping it On and its collector Low. If the Heater Pulse fails to produce the pulses for rectification, the base voltage of Q754 disappears and the transistor turns Off generating a High on its collector. This output High is routed through DH30 to the anode of DP34 to the gate of the Shut Down SCR QP01.

NEGATIVE VOLTAGE LOSS DETECTION:

7. -M28V Loss Detection (DP23, DP24) RP31 (18K ohm) is connected to the negative –M28V line and RP30 (22K ohm) is connected to the positive +29V line. The Cathode of DP23 monitors the neutral point where these two resistors are connected. If the negative voltage disappears, the zener DP23 fires. This high is routed through DP24 to the gate of the Shut Down SCR QP01 and Shut Down occurs.

8. SW-8V Loss Detection (DP28, DP29) RP26 (3.3K ohm) is

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CIRCUIT DESCRIPTION

connected to the negative SW-8V line and RP25 (3.3K ohm) is connected to the positive SW+8V line. The Cathode of DP28 monitors the neutral point where these two resistors are connected. If the negative voltage disappears, the zener DP28 fires. This high is routed through DP29 to the gate of the Shut Down SCR QP01 and Shut Down occurs.

EXCESSIVE CURRENT DETECTION:

9. 120V Deflection Power Supply (RP17, QP02, DP15, DP16 and DP18) If an excessive current condition of the Deflection B+ is detected by RP17 a 0.47 ohm resistor, the base of QP02 would drop. This would turn on QP02 and the high produced at the collector would fire zener DP15. This High would be routed through DP16 through DP18 to the gate of the Shut Down SCR QP01 and Shut Down occurs.

10. 28V Vertical IC I601 Power Supply (R645, Q609, D615, and DP34) If an excessive current condition of the Vertical B+ is detected by R645 a 0.68 ohm resistor, the base of Q609 would drop. This would turn on Q609 and the high produced at the collector would be routed through D615 through DP34 to the gate of the Shut Down SCR QP01 and Shut Down occurs.

VOLTAGE TOO HIGH DETECTION:

11. Excessive High Voltage Detection (DH31, RH54, RH55 and DH24). Sensed from the Heater Voltage generated from pin (5) of the Flyback Transformer TH01. Also, (DH42) sends a high command to the Horizontal Driver IC IH02, to defeat Horizontal Drive Output The Flyback Transformer TH01 generates a pulse called Heater. (Note: This does not go to the CRTs as heater voltage, its used for Excessive High Voltage Detection). If this voltage goes too high indicating an excessive High Voltage condition, the voltage divider comprised of RH54 and RH55 would impress a high on the cathode of DH31. This high is routed through DH34 to the gate of the Shut Down SCR QP01 and a Shut Down occurs.

12. Side Pincushion failure generating a High. (D754, and D753) The Side Pin Cushion circuit is comprised of I651, Q652 through Q657 If a problem occurred in this circuit that creates a High on the cathode of D754, the High will be routed through D753 to the gate of the Shut Down SCR QP01.

13. Deflection B+ Too High. (DP17, RP21 and RP22 RP21 and RP22 form a voltage divider. The top side of RP22 is monitored by DP17. If this voltage goes too high, zener DP17 will fire. This high is routed through DP18 to the gate of the Shut Down SCR QP01 and Shut Down occurs.

14. Heater Voltage from the Deflection Power Supply Too High Detection. (DP27 and DP28) The Heater Voltage for the CRTs filament is generated in the Deflection Power

Supply. This voltage is monitored by DP27. If this voltage goes too high, zener DP27 will fire. This high is routed through DP28 to the gate of the Shut Down SCR QP01 and Shut Down occurs.

ABL CIRCIUT

The ABL voltage is generated from the ABL pin of the Flyback transformer, TH01. The ABL pull-up resistors are RH58 and RH59. They receive their pull up voltage from the B+ 120V(V2 ) for Deflection line generated from the Power Supply via TP91 pin 13, rectified by DP11, filtered by CP33 and then routed through the excessive current sensing resistor RP17.

ABL VOLTAGE OPERATION:

The ABL voltage is determined by the current draw through the Flyback transformer. As the picture brightness becomes brighter or increases, the demand for replacement of the High Voltage being consumed is greater. In this case, the flyback will work harder and the current through the Flyback increases. This in turn will decrease the ABL voltage. The ABL voltage is inversely proportionate to screen brightness. Also connected to the ABL voltage line is DH33. This zener diode acts as a clamp for the ABL voltage. If the ABL voltage tries to increase above 12V due to a dark scene which decreases the current demand on the flyback, the ABL voltage will rise to the point that DH33 dumps the excess voltage into the 12 line.

ACCL TRANSISTOR OPERATION:

The ABL voltage is routed through the PSD3 connector, through the PSZ2 connector, to the base of QX13. Under normal conditions, this transistor is nearly saturated. QX13 determines the voltage being supplied to the cathode of DX05, which is connected to pin 45 of the Jungle IC, IX01. During an ABL voltage decrease, due to an excessive bright circumstance, the base of QX13 will go down, this will drop the emitter voltage which in turn drops the cathode voltage of DX05. This in turn will pull voltage away from pin 45 of the jungle IC, IX01. Internally, this reduces the contrast and brightness voltage which is being controlled by the I C bus data communication from the Microprocessor arriving at pin 27 and 28 of the jungle IC and reduces the overall brightness, preventing blooming.

SPOT CIRCUIT:

When QN04 is turned on, the 11V standby will be applied to the anode of DN11, forward biasing it. This voltage will then pass through DN11, get zenered by DN09, and go to pin 2 of PSD3, where it will activate the Video Mute circuitry Q022 - Q024 on the Signal PWB. This is done to prevent CRT burn. Another input to this circuit is the I701 DAC3 line. This will activate when accessing certain adjustment parameters in the service mode; i.e. turning off vertical drive for making CRT drive or cut-off adjustments.

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CIRCUIT DESCRIPTION

SPOT PROTECT or SPOT KILLER:

As mentioned earlier, when the deflection power supply goes into shutdown for whatever reason, a low potential will be applied at the cathode of DN14, forward biasing it and causing current flow through RN07. Once again, this increase of current flow through RN07 will bias on QN04 and the events described previously will occur.

SWEEP LOSS DETECTION:

The key component in the Sweep Loss Detection circuit is QN04. This transistor is normally biased off. When the base becomes more negative, it will be turned on, causing the Standby 11V to be applied to two different circuits, the Spot circuit and the High Voltage Drive circuit.

VERTICAL / HORIZONTAL BLANKIN: Loss of Vertical Blanking:

When the 24Vpp positive vertical blanking pulse is missing from the base of QN01, it will be turned off, which will cause the collector to go high. This in turn will cause QN02 to turn on, creating an increase of current flow from emitter to collector and up through RN07, (which is located across the emitter base junction of QN04), to the 11V standby supply. This increase of current flow through RN07 will bias on QN04 and the events described previously will occur.

Loss of Horizontal Blanking:

When the 11.6Vpp positive horizontal blanking pulse is missing from the base of QN05, it will be turned off, which will cause the collector to go high. This in turn will cause QN03 to turn on, creating an increase of current flow from emitter to collector, through RN06, and up through RN07. Again, this increase of current flow through RN07 will bias on QN04 and the events described previously will occur.

CONCERNING QN04:

There are several factors that can affect the operation of QN04; namely loss of vertical or horizontal blanking and spot killer or spot protect from a shutdown in the deflection power supply.

MICRO PROCESSOR DATA COMMUNICATION

The Microprocessor must keep in communication with the Chassis to maintain control over the individual circuits. Some of the circuits must return information as well so the Microprocessor will know how to respond to different request. The Microprocessor uses a combination of I 2 C Bus communication and the Standard Data, Clock and Load lines for control. The I 2 C communication scheme only requires 2 lines for control. These lines are called SDA and SCL. System Data and System Clock respectively. The Microprocessor also requires the use of what are called Fan Out ICs or DACs, (Digital to Analog Converters). This allows the Microprocessor to use only two lines to control many differ-

ent circuits. Also, due to the fact that this Microprocessor operates at the new 3.3Vdc voltage, it requires a Level Shift IC to bring up the DC level of the control lines to make it compatible with the connected ICs.

ON THE SIGNAL PWB: Main Tuner U201:

The Microprocessor controls the Main Tuner by Clock, Data and Enable lines. Clock, Data and Enable lines for the Main Tuner are output from the Microprocessor at pins (20 Clock, 21 Data and 44 FEENABLE1) respectively. Pin (44) FEENABLE1 goes directly to the Main Tuner at pin (6), where as the Clock and Data lines must be routed through the Level Shift IC I014 to be brought up to 5V. Clock and Data from the Microprocessor arrive at I014 (Level Shift) at pins (2 and 3) and are output at pins (18 and 17). They arrive at the Main Tuner at pins (4 and 5).

PIP Tuner U202:

The only difference for the PinP tuner control lines is related to the PinP Enable line. This is output from the Microprocessor pin (43 FEENABLE2) to the PinP Tuner at pin (17). Clock and Data are the same as for the Main Tuner.

EEPROM I002:

The EEPROM is ROM for many different functions of the Microprocessor. Channel Scan or Memory List, Customer set ups for Video, Audio, Surround etc… are memorized as well. Also, some of the Microprocessors internal sub routines have variables that are stored in the EEPROM, such as the window for Closed Caption detection. Data and Clock lines are SDA1 from pin (2) of the Microprocessor to pin (5) of the EEPROM and SCL2 from pin (3) of the Microprocessor to pin (6) of the EEPROM. Data travels in both directions on the Data line.

Flex Converter U205:

The projection television is capable of two different horizontal frequencies. 31.75Khz for everything except HD and

33.75Khz for HD. (High Definition). The Flex Converter is responsible for receiving any video input and converting it to the related output. This output is controlled by sync and by the customer’s menu and how it is set up. The set up can be 4X3 or 16X9, sometimes called letterbox. The Flex Converter can take any NTSC, S-In, Component in NTSC, Progressive, Interlaced, 480I, 720P, 1080I signal. Control for the Flex Converter is Clock, Data and Enable lines. Clock, Data and Enable lines for the Flex Converter are output from the Microprocessor at pins (20 Clock, 21 Data and 46 FCENABLE). FCENABLE Clock and Data lines must be routed through the Level Shift IC I014 to be brought up to 5V. They arrive at I014 at pins (2 Clock, 3 Data and 4 FCENABLE) and are output at pins (18, 17 and 16) respectively.

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CIRCUIT DESCRIPTION

DAC1 I003 and DAC2 I004:

These Digital to Analog converter acts as an extensions of the Microprocessor( Sometimes called an Expansion ICs). The purpose of these ICs are to reduce the number of pins, (fan out) of the Main Microprocessor I001. The Main Microprocessor send Clock and Data via I2C bus to the DAC1 IC. The output from the Microprocessor is pin (2 SDA1 and 3 SCL1) which arrives at the DAC1 and DAC2 ICs at pins (5 and 6) respectively.

Level Shift I014:

The Microprocessor operates at 3.3VDC. Most of the Circuits controlled by the Microprocessor operate at 5VDC. The Level Shift IC steps up the DC voltage to accommodate.

ON THE DEFLECTION PWB: Sweep Control I701:

The Sweep Control IC is responsible for generating Horizontal Drive and Vertical Drive signals. The Microprocessor must tell the IC when certain things are done in the Service Menu. When Cut Off is performed, the Vertical is collapsed. The Microprocessor tells I701 to stop producing Vertical Drive. At the same time, I701 must stop the Spot Killer circuit from operating. This is accomplished by placing pin (24 DAC3) high which activates QN07 which inhibits spot killer high. Also, when H.Phase is adjusted, the Microprocessor controls the H. Drive signals phase in relationship to H.Blk which is timed with video sync. This gives the appearance that the horizontal centering is being moved. Communication from the Microprocessor via pins (59 SDA2 and 60 SCL2) to the PSD2 connector pins (2 and 3) and then to I701 pins (16 and 17) respectively.

ON THE SUB VIDEO PWB (2H VIDEO): Jungle IX01:

The Video Processing IC is responsible for controlling video/ chroma processing before the signal is made available to the CRTs. Some of the emphasis circuits are controlled by the customer’s menu. As well as some of them being controlled by AI, (Artificial Intelligence). Communication from the Microprocessor via pins (59 SDA2 and 60 SCL2) to the PSZ2 connector pins (1 and 2) and then to IX01 pins (27 and 26) respectively.

MICROPROCESSOR AS THE SOURCE FOR OSD:

The Microprocessor receives information related to timing for H. Blanking and V. Blanking. These arrive at pins (49 and 55) respectively. The Microprocessor determines the position for each display using these signals as a timing pulse. When it’s necessary, the Microprocessor generates 1uSec pulses from pins (37 Red, 38 Green and 39 Blue) that are routed through the PSZ1 connector pins (14 Red, 16 Green and 18 Blue) and then through (QX07 Red, QX08

Green and QX09 Blue) and then sent to the Jungle IC IX01 pins (39 Red, 38 Green and 37 Blue) as OSD signals. When the OSD signals are high, they turn on the output of the Red or Green or Blue chroma amps inside the jungle IC and output a pulse to the CRTs to generate that particular character in the particular color. HALF TONE PIN (40): This pin is responsible for controlling the background transparency of the Main Menu. When the customer calls up the Main Menu, they can select the CUSTOM section. Within the CUSTOM section is MENU BACK-GROUND. There are three selections for this, GRAY, SHADED, and CLEAR. · CLEAR: Selection turns off any background for the Menu and video is clearly seen behind the Menu. · SHADED: Selection add a transparent background which makes the Menu easier to see and also some of the video behind the Menu. · GRAY: Selection generates a GRAY background for the MENU blocking video behind the Menu. This is accomplished by outputting any one of three different pulses from pin (40) of the Microprocessor. This signal is then routed through the PSZ1 connector pin (20) to the jungle IC IX01 pin (47) as YM signal which does the following: · CLEAR: No output during the display of the Menu. · SHADED: 1/2 Vcc pulse equal to the timing of the Menu background. · GRAY: Full Vcc equal to the timing of the Menu background.

OSD BLANKING PIN (51):

This pin is responsible for muting the video behind each character produced by the Microprocessor. This pulse is in exact time with the character, however it is slightly longer. In other words, just before any character is produced, this pin goes high and just after any character turns off, this pin turns off. This clears up the video behind the OSD character to make it easier to read. OSD Blk is produced from pin (51) of the Microprocessor. This signal is then routed through Q013, then through Q007, through the PSZ1 connector pin (19) to the jungle IC IX01 pin (36) as YS1 signal which mutes the video.

P Blk PICTURE BLANKING PIN (56):

This pin is responsible for muting the video when the Microprocessor deems it necessary. This would be during power up or power off, child lock, channel change, or selecting a video input with no video input available. P Blk is produced from pin (56) of the Microprocessor. This signal is then routed through Q007, through the PSZ1 connector pin (19) to the Jungle IC IX01 pin (36) as YS1 signal which mutes the video.

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MODEL PARTS LIST

The following information is for models in and out of warranty. The ZP 94/95 models are module level repair.

To Order Parts:call 1-888-3-ZENITH

fax 1-888-6-ZENITH

By Mail: ZENITH NATIONAL PARTS

SALES AND DISTRIBUTION CENTER P O Box 240007 Huntsville, AL 35824-6407

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MODEL PARTS

IQC50M94W

ZPN LOC DESC

809-10543 POWER / DEFLECTION PWB 809-10542 SIGNAL PWB ASSY 809-10548 VIDEO CHROMA PWB 809-10533 CRT / PRT PWB ASSY 809-10532 AUDIO / MATRIX PWB 809-10546 TERMINAL / JACKPACK PWB ASSY 809-10547 STANDBY POWER SUPPLY 809-10565 COMB FILTER, 3 LINE 811-10034 A/C LINE 814-10160 PANEL W/RF SWITCH 812-10529 FOCUS BLOCK / BLEEDER ASSY 849-10013 SPEAKER 965-10001 CASTER 857-10194 01 KEYBOARD PANEL/PLASTIC 809-10545 01A REMOTE CONTROL PWB NSP 02 LENS CRT METAL 992-10029 03 MIRROR NSP 04 BARRIER BOARD 814-10150 05 REAR COVER, UPPER NSP 06 FRONT COVER BOARD NSP 07 BACK CENTER BAR 814-10152 08 BACK COVER, LOWER 857-10194 09 GRILLE 992-10031 10 MIRROR METAL A 992-10032 11 MIRROR METAL B 874-10023 12/13/14 SCREEN ASSY 900-10045 15 LIQUID COUPLER-RED 900-10046 16 LIQUID COUPLER-GREEN 900-10047 17 LIQUID COUPLER-BLUE 924-10092 900 REMOTE 971-10015 18/19/20 LENS & HOUSING ASSY (CPD78) 895-10116 21/22/23 YOKE RED, BLUE, GREEN

IQC60M94W

ZPN LOC DESC

809-10543 POWER / DEFLECTION PWB 809-10542 SIGNAL PWB ASSY 809-10548 VIDEO CHROMA PWB 809-10533 CRT / PRT PWB ASSY 809-10532 AUDIO / MATRIX PWB 809-10546 TERMINAL / JACKPACK PWB ASSY 809-10547 STANDBY POWER SUPPLY 809-10565 COMB FILTER, 3 LINE 811-10034 A/C LINE 814-10160 PANEL W/RF SWITCH 812-10529 FOCUS BLOCK / BLEEDER ASSY 849-10013 SPEAKER 965-10001 CASTER 857-10194 01 KEYBOARD PANEL/PLASTIC 809-10545 01A REMOTE CONTROL PWB NSP 02 LENS CRT METAL 992-10029 03 MIRROR NSP 04 BARRIER BOARD 814-10149 05 REAR COVER, UPPER NSP 06 FRONT COVER BOARD NSP 07 BACK CENTER BAR 814-10151 08 BACK COVER, LOWER 857-10196 09 GRILLE 992-10031 10 MIRROR METAL A 992-10032 11 MIRROR METAL B 874-10023 12/13/14 SCREEN ASSY 900-10045 15 LIQUID COUPLER-RED 900-10046 16 LIQUID COUPLER-GREEN 900-10047 17 LIQUID COUPLER-BLUE 924-10092 900 REMOTE 971-10015 18/19/20 LENS & HOUSING ASSY (CPD78) 895-10116 21/22/23 YOKE RED, BLUE, GREEN

PV152 4-2 PROJO

Page 49

MODEL PARTS

IQC50H95W

ZPN LOC DESC

809-10543 POWER / DEFLECTION PWB 809-10582 SIGNAL PWB ASSY 809-10548 VIDEO CHROMA PWB 809-10533 CRT / PRT PWB ASSY 809-10567 VELOCITY MODULATOR PWB 809-10532 AUDIO / MATRIX PWB 809-10546 TERMINAL / JACKPACK PWB ASSY 809-10547 STANDBY POWER SUPPLY 811-10034 A/C LINE 814-10160 PANEL W/RF SWITCH 812-10529 FOCUS BLOCK / BLEEDER ASSY 849-10013 SPEAKER 965-10001 CASTER 857-10194 01 KEYBOARD PANEL/PLASTIC 809-10545 01A REMOTE CONTROL PWB NSP 02 LENS CRT METAL 992-10030 03 MIRROR NSP 04 BARRIER BOARD 814-10150 05 REAR COVER, UPPER NSP 06 FRONT CONVERGENCE COVER NSP 07 BACK CONTROL BAR 814-10152 08 BACK COVER, LOWER 857-10194 09 GRILLE 992-10031 10 MIRROR METAL A 992-10032 11 MIRROR METAL B 874-10006 12/13/14 SCREEN ASSY 900-10045 15 LIQUID COUPLER-RED 900-10046 16 LIQUID COUPLER-GREEN 900-10047 17 LIQUID COUPLER-BLUE 924-10092 900 REMOTE 971-10015 18/19/20 LENS & HOUSING ASSY (D78) 895-10116 21/22/23 YOKE RED, BLUE, GREEN

IQC60H95W

ZPN LOC DESC

809-10543 POWER / DEFLECTION PWB 809-10582 SIGNAL PWB ASSY 809-10548 VIDEO CHROMA PWB 809-10533 CRT / PRT PWB ASSY 809-10567 VELOCITY MODULATOR PWB 809-10532 AUDIO / MATRIX PWB 809-10546 TERMINAL / JACKPACK PWB ASSY 809-10547 STANDBY POWER SUPPLY 811-10034 A/C LINE 814-10160 PANEL W/RF SWITCH 812-10529 FOCUS BLOCK / BLEEDER ASSY 849-10013 SPEAKER 965-10001 CASTER 857-10194 01 KEYBOARD PANEL/PLASTIC 809-10545 01A REMOTE CONTROL PWB NSP 02 LENS CRT METAL 992-10030 03 MIRROR NSP 04 BARRIER BOARD 814-10149 05 REAR COVER, UPPER NSP 06 FRONT CONVERGENCE COVER NSP 07 BACK CONTROL BAR 814-10151 08 BACK COVER, LOWER 857-10196 09 GRILLE 992-10031 10 MIRROR METAL A 992-10032 11 MIRROR METAL B 874-10006 12/13/14 SCREEN ASSY 900-10045 15 LIQUID COUPLER-RED 900-10046 16 LIQUID COUPLER-GREEN 900-10047 17 LIQUID COUPLER-BLUE 924-10092 900 REMOTE 971-10015 18/19/20 LENS & HOUSING ASSY (D78) 895-10116 21/22/23 YOKE RED, BLUE, GREEN

PV152 4-3 PROJO

Page 50

Page 51

PV152 5-1 PROJO

Page 52

SECTION 6

ZP95 Only

ZP94/95 Exploded View Front

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

5-3

ALL SYMBOLS WITH “M” ON END OF DESIGNATOR INDICATE SURFACE MOUNTED COMPONENT

ZP94/94 SHEET 3

Page 53

ZP94/95 Exploded View Back

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

5-4

ALL SYMBOLS WITH “M” ON END OF DESIGNATOR INDICATE SURFACE MOUNTED COMPONENT

ZP94/94 SHEET 4

Page 54

ZP95 Only

ZP94/95 Interconnect

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

5-5

ALL SYMBOLS WITH “M” ON END OF DESIGNATOR INDICATE SURFACE MOUNTED COMPONENT

ZP94/94 SHEET 5

Page 55

ZP94/95 Wiring Diagram

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

5-6

ALL SYMBOLS WITH “M” ON END OF DESIGNATOR INDICATE SURFACE MOUNTED COMPONENT

ZP94/94 SHEET 6

Page 56

SECTION 6

TO SHEET ?

TO SHEET 7

Jackpack

TO SHEET 5

Deflection

TO SHEET 7

Jackpack

TO SHEET 8

Comb Filter

TO SHEET ?

TO SHEET 2

Tuner

TO SHEET ?

TO SHEET 3

Power Supply

TO SHEET 11

Control Panel

TO SHEET 3

Power Supply

TO SHEET 12 Audio

TO SHEET 3 Power Supply

TO SHEET 3

Power Supply

I001-63

I001-62

I001-2

I001-3

I001-55

I001-23

I001-49

PIN RUN PIN RUN PIN RUN

10 10 10 2 4.8 2 -.7 2 4.2 3 4.9 3 -.7 3 5.0

43.4 4 0 45.0

53.2 54.8 57.0

61.8 64.9 PINRUN

72.1 7 .1 15.3

81.5 85.0 2 0

9 0 PIN RUN 3 2.5 10 3.6 1 .2 PIN RUN 11 3.6 2 4.5 1 5.3 12 1.6 3 4.6 2 0 13 1.6 4 4.0 3 3.3 14 1.6 5 4.0 PIN RUN 15 3.2 6 4.6 1 7.1 16 3.2 7 4.6 2 0 17 0 8 0 3 5.0 18 0 9 0 PIN RUN 19 0 10 5.0 1 5.0 20 3.0 11 0 2 2.9 21 3.0 12 0 3 2.9 22 3.8 13 4.9 4 2.9 23 1.3 14 4.9 5 .1 24 2.7 15 4.9 6 0 25 3.2 16 5.0 7 .1 26 2.2 PIN RUN 8 .1 27 2.3 1 5.0 9 0 28 1.4 2 5.0 10 0 29 0 3 .4 11 0 30 1.4 4 4.6 12 0 31 2.3 5 4.6 13 0 32 1.5 6 .4 14 0 33 3.2 7 .4 15 0 34 1.8 8 0 16 * 35 1.5 9 5.0 17 4.9 36 1.6 10 0 18 4.9 37 0 11 0 19 0 38 0 12 0 20 5.0 39 0 13 5.0 PIN RUN 40 0 14 4.9 E 3.3 41 1.4 15 4.9 B 3.8 42 1.4 16 5.0 C 5 43 0 PIN RUN 44 .3 1 5.0 45 0 2 5.0 46 2.9 3 4.8 47 1.8 4 5.1 48 1.8 5 5.3 49 2.8 6 0 50 3.0 7 0 51 0 8 0 52 3.0 9 0 53 2.8 10 0 54 3.2 11 0 55 3.1 12 2.6 56 0 13 2.3 57 3.2 14 2.6 58 3.2 15 5.0 59 4.8 16 9.1 60 4.8 PIN RUN 61 3.2 1 0 62 1.6 2 4.2 63 1.6 3 9.3 64 0 4 9.1

511.1

Main Micro Voltages

I001

I002

I003

I004

I005

I009

I010

I011

QO29

I012

I008

I014

ZP94/95 Main Microprocessor Circuit

2345678910

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL . REPLACE ONLY WITH PART NUMBERS SPECIFIED.

7-1

ZP94/95 SHEET 1

Page 57

ZP94/95 Small Signal/Tuner Circuit

PIN RUN PIN RUN PIN RUN PIN RUN PIN RUN

14.0 1 .2 14.8 1 0 12.4

24.0 2 4.9 24.8 2 0 22.4

34.0 3 4.9 34.1 33.9 3 0

42.1 4 .1 4 .4 4 0 4 .3 5 0 5 4.9 5 9.3 5 3.8 5 1.2

61.8 6 0 6 0 6 0 63.2

76.3 7 0 7 0 73.9 73.0

82.8 85.0 PINRUN 80 8.1

92.3 9 0 19.2 91.4 9 0 10 7.6 10 4.9 2 9.2 10 0 10 0 11 0 11 .2 3 0 11 2.5 11 0 12 6.0 12 .1 4 5.1 12 0 12 .5 13 4.9 13 4.9 5 5.1 13 2.5 13 2.0 14 .1 14 5.0 6 0 14 0 14 2.5 15 1.2 PIN RUN 7 0 15 4.8 15 0 16 0 1 9.2 8 0 16 0 16 4.3 17 .6 2 32.3 9 0 17 4.8 17 0 18 9.1 3 5.0 10 0 18 0 18 4.3 19 9.1 4 4.7 11 0 19 4.8 19 0 20 2.0 5 4.7 12 0 20 0 20 4.3 21 5.2 6 * 13 0 PIN RUN 21 9.2 22 5.4 7 3.08 14 0 1 4.9 22 N- C 23 0 8 0 15 0 2 4.9 PIN RUN 240 99.2 160 30 10 25 3.3 10 4.8 17 0 4 4.6 2 5.1 26 3.3 11 N/C 18 0 5 5 3 5.0 27 3.2 12 N/C 19 0.8 6 4.9 4 5.0 28 0 13 N/C 20 0 7 0 5 .5 29 3.3 14 N/C PIN RUN 8 1.9 6 9.3 30 3.1 15 N/C 1 4.9 9 1.9 7 2.5 31 3.2 16 N/C 2 4.9 10 0 8 0 32 0 17 N/C 3 0 11 4.6 9 2.4 33 4.8 18 4.8 4 4.7 12 4.5 10 0 34 4.9 19 0 5 11 13 0 11 4.3 35 1.5 20 1.0 6 0 14 6.4 12 0 36 0 21 0 7 0 15 0 13 3.8 37 .4 22 0 8 1.2 16 4.6 14 0 38 4.2 23 0 9 0 17 4.6 15 2.4 39 2.7 24 0 10 0.2 18 0 PIN RUN 40 2.7 25 0 11 0 19 1.1 1 4.7 41 4.9 26 4.6 12 0.5 20 0 2 4.8 42 4.9 27 4.6 13 0.3 PIN RUN 3 4.8 43 0 PIN RUN 14 0 1 5.0 4 - 2 44 3.0 1 11.3 15 4.2 2 0 5 0 45 .9 2 -.1 16 0 3 5.7 6 0 46 4.2 3 -.9 17 4.2 4 5.8 7 0 47 2.2 4 3.6 18 0.1 5 5.7 8 4.3 48 2.5 5 0 19 4.2 6 0 9 4.3

PIN RUN 6 1.5 20 0 7 .1 10 0

14.9 7 0 PINRUN 84.8 114.5

24.9 8 3.2 10.2 9 0 124.5

3.2 9 0 2 0 104.7 130

4 .2 10 .6 3 0.1 11 5.0 14 0 5 0 11 0 4 0 12 * 15 4.8 60 12 0 50 139.2 160 7 0 13 6.6v ac 6 0 14 .1 17 5.0 8 0 PIN RUN 7 0.1 15 4.9 18 0

94.2 1 0 8 0 16 0 199.3 10 4.2 2 0 9 9.1 17 5.8 20 9.3 11 4.2 3 0 10 9.2 18 5.8 12 2.5 4 0 11 0 19 5.8 13 2.6 5 5.0 12 0 20 0 14 2.6 6 0 13 9.2 21 3.3 15 4.9 7 0 14 9.2 22 3.3 16 5.0 15 0

16 0 17 5.1 18 5.1 19 0 20 0

I201

I202

I203

Small Sign al Voltages

U201

PSD3

PSD1

PSD2

PSZ1

PSZ2

PST3

PST2

PSU1

PST1

PFC1

PFC 2

PYC1

TO SHEET 8 Comb Filter

TO SHEET 5 Deflection

TO SHEET 7

Jackpack

TO SHEET 3

Power Supply

TO SHEET 5 Deflection

TO SHEET 7

Jackpack

TO SHEET 7

Jackpack

TO SHEET 3

Power Supply

1201-3

I201-12

PFC1-3,4,5

PFC1 10,11

PFC1 17,18,

2345678910

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL . REPLACE ONLY WITH PART NUMBERS SPECIFIED.

7-2

ZP94/95 SHEET 2

Page 58

ZP94/95 Deflection Circuit

PIN RUN

A10.3 K0

G0.2

PIN RUN

E11.3 B10.6

C11.2

PIN RUN

12 20

3300.0vac

418.5 50

PIN RUN

17.8

26.3 30

45.5

PIN RUN

111.9

210.9 32

418.5

PIN RUN

1120.2

210.6 30

RUN RUN

-9.3 -28.5

RUN RUN

8.9 27.8

RUN

227.0 PIN STBY RUN

110.4 8 20 0 30 11.34 40 0 50 10.35 6-2 1.03 70 12.35

DP10

DP09

DP08

PQD2

QP01

QP04

Power Sup ply Voltages

IP01

IP02

IP04

IP03

DP13

DP12

TO SHEET 10 CRT

TO SHEET 4

TO SHEET 5 Deflection

To Power

IP01-3

IP01-1

IP01-2

TP91-10

TP91-16

TP91-17

TP91-13

TP91-14

TP91-15

IP04-2

IP04-3

anode

cathode

gate

QP01-PA

QP01-PG

2345678910

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL . REPLACE ONLY WITH PART NUMBERS SPECIFIED.

7-3

ZP94/95 SHEET 3

Page 59

ZP94/95 Stand By Power Supply Circuit

TO SHEET ?

TO SHEET 5

Deflection

TO SHEET ?

I901-3

I901-1

I901-2

TP91-17

TP91-14

TP91-11

I902-3

I903-3

PQS1-10

PIN STBY RUN PIN STBY RUN

1 1.62 1.71 A 12.7 13.5 20 0.03 K 0 0 3 162 426 v ac G 0 0 4 12.87 13.7 PIN STBY RUN 50 0 E0.34.7

PIN STBY RUN B 0.6 4.9

1 12.3 12.3 C 4.9 4.9 2 11.3 11.76 PIN STBY RUN 3 3.02 2.7 E 0.3 4.7 4 13.81 14.6 B 0.2 4.5

PIN STBY RUN C -2 -3.1

1 12.3 12.3 PIN STBY RUN 2 12.7 13.5 E 0 0 30 0 B 00.86 4 13.8 14.6 C 0 0.77

PIN STBY RUN PIN STBY RUN

1 3.2 2.7 E 4.8 4.9 2 0.25 6.5 B 4.8 4.9 3 5.1 0.4 C -2.5 -3.1 4 12.3 12.3 PIN STBY RUN

PIN STBY RUN 1 0 31.9

1 2703 27.4 2 0 31.9

27.8 7.8 3 0 0 30 0 4 0 0 45 5 5 0-2.14 5 1.4 1.6 6 0 -1.02

PIN STBY RUN PIN STBY RUN

1 27.3 27.4 1 22.5 33.9 2 12.1 12.2 2 0 0 3 0 0 3 11.6 11.3 4 9.16 9.15 4 11.6 11.3 5 1.4 1.5 5 11.6 11.3

PIN STBY RUN 6 0 0

1 27.3 27.4 7 0 0 20 6.22 82.60 30 0 9 0 0 40 5 104.44.44 5 0 1.5 PIN STBY R UN

PIN STBY RUN 1 0 7.26

1 27.3 27.4 2 0 7.26 2 0.3 13.6 3 0 7.26 30 0 4 0 0 4 0.3 12.1 5 0 0 50 1.4 6 0 0

PIN STBY RUN 7 0 5.5

K0 0 8 0 5.5 A12.87 13.7 9 0 0

G0 0 10 02.36

PIN STBY RUN 11 0 3.4

E 2.34 2.1 STBY RUN B3.02 2.7 0 32

C 13.81 14.6 STBY RUN

PIN STBY RUN 0 5.6

E 5.8 5.9 STBY RUN B 5.9 5.9 2.3 41.5

C 11.3 11.7 STBY RUN

PIN STBY RUN 27.4 27.4

E0 0 B0.7 0

C0 6.8

D910

D914

D915

Q903

Q905

Q908

Q909

Q911

Q912

PQU1

PQS1

D918

PQS2

I908

Q901

Q910

Q902

I904

I905

I906

I907

SMPS Voltages

I901

I902

I903

2345678910

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL . REPLACE ONLY WITH PART NUMBERS SPECIFIED.

7-4

ZP94/95 SHEET 4

Page 60

PIN RUN PIN RUN PIN RUN PIN RUN

B 1.3 B 7 1 15.6 1 0.7

C6.7 C9.7 227.1 2 1.3

E0.7 E6.3 34.9 3 0.9

PIN RUN PIN RUN 4 6.7 4 0

B 6.7 B 16.8 5 4.6 5 3.1

C0.8 C 0 6 0 6 0.7

E7.1 E 0 73.8 7 1.8

PIN RUN PIN RUN 8 4.6 8 12.3

B0.8 B0.6 94.6 PINRUN

C 11.7 C 0 10 27.4 1 6.4

E 0.3 E 0 11 1.1 2 12.4

PIN RUN PIN RUN PIN RUN 3 0.9

B 12.3 B 0.7 B 0 4 2.5

C 395 C 0.1 C 12.1 5 1.6

E11.7 E 0 E 0 6 0

PIN RUN PIN RUN PIN RUN 7 0

B 383 B 0.4 B 11.2 8 0

C 981.6 C 16.3 C -3 9 7.2

E487.1 E 0 E11.2 10 7.2

PIN RUN PIN RUN PIN RUN 11 7.2

B 11.6 B 9.2 B 0 12 7.2

C 482.2 C 0.8 C -2.7 13 2.7

E 11.1 E 8.1 E 0 14 1.9

PIN RUN PIN RUN PIN RUN 15 4.9

E 11.5 B 1.1 B 11.4 16 0 B 11.5 C 12.3 C -0.7 PIN RUN

C 0 E 1.6 E 11.4 1 11.3

PIN RUN PIN RUN PIN RUN 2 -.1

B0.7 B 0 B1 3 -.9

C 0 C 116.9 C 0 4 3.6

E0 E0 E0 5 0

PIN RUN PIN RUN PIN RUN 6 1.5

B0.3 B 12 B 0 7 0

C8.7 C-0.2 C-0.1 8 3.2

E0 E10.5 E0 9 0

PIN RUN PIN RUN PIN RUN 10 .6

B 10.9 B 0.6 B 0.6 11 0

C7 C4 C0 12 0

E11.5 E 0 E 0 136.6vac

PIN RUN PIN RUN PIN RUN PIN RUN

B6.4 B 4 10.1 1 4.8

C 1 C 12.3 2 0.1 2 4.8

E6.9 E3.9 33.1 3 4.1

PIN RUN PIN RUN 4 3.2 4 .4

B5.6 B 4 5 0 5 9.3

C2.5 C 0 6 7 6 0

E6.1 E3.9 75.7 7 0

PIN RUN PIN RUN 8 9.7 PIN RUN

B 0.6 B 12.2 9 2.7 E 0

C 12.3 C 12 10 1.1 B 0

E1 E12.3 111.2 C6.6

PIN RUN PIN RUN 12 1.2 RUN

B0.7 B3.3 130 27.8

C 0 C 119.5 14 0 RUN

E 1 E 0.4 15 1.3 27.8

PIN RUN PIN RUN 16 4.9

B0 B0.3 174.9

C 100 C 2.5 18 6.3

E0 E0 192.2

PIN RUN PIN RUN 20 0.1

B0.1 B27.4 212.2

C7 C0 225.2

E0 E27.7 230.3

24 0.8

Deflection Voltages

D656

D657

QF09

PSD2

PSD3

I701

I651

IH02

QN04

QN05

QN07

QN08

I601

QN01

QN02

QN03

QH80

QH01

Q601

Q609

QH07

QH08

QH09

QH10

Q751

Q754

Q755

Q777

Q702

Q703

Q704

Q705

Q655

Q656

Q657

Q701

Q612

Q652

Q653

Q654

QF07

QF09

QF05

QF01

QF02

QF03

QF04

QF06

ZP94/95 Deflection Circuit

To Green Yoke

TO SHEET 3

Power

TO SHEET 2

Signal

TO SHEET 2

Signal

TO SHEET 6

Convergence

To Red Yoke

To Blue Yoke

To Focus Block

Assembly

To Red CPTAnode To Green CPTAnode To Blue CPTAnode

PSD3-1

PSD3-10

PSD3-2

PSD3-4

PSD3-8

C778-PE

Q751-PB

Q751-PC

Q777-PB

Q777-PC

QFO1-PC

QFO9-PC

QH01-PG

QH01-PE

QH01-PC

TH01-5

TH01-3

I601-3

I601-2

I601-1

I601-7

I601-11

2345678910

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL . REPLACE ONLY WITH PART NUMBERS SPECIFIED.

7-5

ZP94/95 SHEET 5

Page 61

ZP94/95 Convergence Power Supply

PIN RUN PIN RUN

18.8 1 0

20 2.1 35 30

PIN RUN 4 0

13.6 5 .5

25 64.2 30 70

PIN RUN 8 .3

18.8 93.6

2 0 PIN RUN 35 10

PIN RUN 2 0

E-9.3 3-31.3 B-8.7 4-32.3 C-5.3 5 33

PIN RUN 6 0

E0.6 7 0 B0 828.2 C0 91.0

PIN RUN 10 27.1

E0.6 11 0 B 0 12 -28.3 C-8.0 13 0

PIN RUN 14 0

E0 15.2 B0 16.3 C 9.0 17 - 28.3

PIN RUN 18 .3

E 0 PIN RUN B0 1 0 C5.0 2 0

PIN RUN 3 -31.3

E0 4-32.3 B0 533 C5.0 6 0

PIN RUN 7 0

E0 828.2 B0 91.0 C 5.0 10 27.1

PIN RUN 11 0

1 -5.3 12 -28.3 20 130

35.5 14 0

4 4.8 15 .2 5 0.6 16 .3 6 0 17 -28.3 7 0.1 18 .3 80

95.0

10 0 11 0 12 0 13 0 14 5.0 15 5.0

QK01

QK02

QK03

IK01

IK02

Convergence Voltages

PDG

PDC

IK04

IK05

QK71

QK06

QK07

QK08

IK03

TO SHEET 2

Signal

To Digital

Convergence Unit

To Red Yoke

TO SHEET 5

Deflection

To Green Yoke

To Blue Yoke

2345678910

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL . REPLACE ONLY WITH PART NUMBERS SPECIFIED.

7-6

ZP94/95 SHEET 6

Page 62

ZP94/95 Jackpack Terminal Circuit

PIN RUN PIN RUN PIN RUN PIN RUN

1 4 1 2.6 B 4.5 B 8.5

24.5 24.9 C 9 C5.5 3 4 3 1.8 E 3.9 E 9.1 4 4.5 4 0 PIN RUN PIN RUN

54.5 51.8 B4.5 B5.5

60.2 60.7 C 9 C9.1

74.9 74.9 E3.8 E4.8 8 4 8 2.1 PIN RUN PIN RUN

94.5 92.1 B4.6 B0.7 104 100 C9 C0 11 4.5 11 2.5 E 3.9 E 1.4 12 4.5 12 4.9 PIN RUN PIN RUN 13 0.2 13 5 B 5.9 B 1.8 14 4.9 14 2.6 C 9.1 C 2.4 15 4 15 0 E 5.3 E 0 16 4.5 16 2.5 PIN RUN PIN RUN 17 4 PIN RUN B 4.6 B 1.8 18 4.5 1 4 C 9 C 2.5 19 4.5 2 4 E 3.9 E 0 20 0.2 3 4 PIN RUN PIN RUN 21 5 4 2.2 B 3.7 B 2.5 22 4 5 0 C 9 C 5 23 4.5 6 1.8 E 3.1 E 1.9 24 4.1 7 6.3 PIN RUN PIN RUN 25 4.5 8 3 B 4.5 B 2.5 26 4.5 9 0.1 C 9.1 C 5 27 0.2 10 7.5 E 3.9 E 1.9 28 5 11 0 PIN RUN PIN RUN 29 4.5 12 5.9 B 0 B 3.2 304 130 C0 C5 31 4.5 14 0.2 E 0.7 E 2.5 32 0.1 15 1.2 PIN RUN PIN RUN 33 5 16 0 B 2.4 B 3.1 345 179 C3 C5 35 0 18 9.1 E 0 E 2.5 36 4.5 19 9.1 PIN RUN PIN RUN 37 4.5 20 1.1 B 2.5 B 3.1 38 4.6 21 4.8 C 0 C 5 39 3.7 22 2.4 E 3.1 E 2.5 40 4.6 23 9.1 PIN RUN PIN RUN 41 4.5 24 0 B 3.7 B 3.1 42 9 25 0.5 C 3.1 C 5 43 4.6 26 0.3 E 8.5 E 2.5 44 0 27 0.4 PIN RUN PIN RUN 45 3.9 28 0 B 8.5 B 3.1 46 3.7 29 1.4 C 5.5 C 5 47 4.5 30 1.3 E 9.1 E 2.5 48 0.1 31 1.4 PIN RUN PIN RUN 49 5 32 0 B 5.5 B 3.1 50 4.6 33 4.9 C 9.1 C 5 51 4.5 34 4.9 E 4.8 E 2.5 52 4.6 35 0.3 PIN RUN PIN RUN 53 4.6 36 0 B 3.7 B 0.7 54 4.6 37 0.1 C 8.5 C 0.1 55 3.7 38 5 E 3.1 E 0 56 4.3 39 4.9 PIN RUN PIN RUN 57 0 40 2.7 B 8.5 B 4.2 58 4.5 41 5 C 5.5 C 9.1 59 4.5 42 5 E 9.1 E 4.8 60 4.4 43 0 PIN RUN PIN RUN 61 4.5 44 3.2 B 5.5 B 4.2 62 4.5 45 0 C 9.1 C 9.1 63 4.4 46 3.8 E 4.9 E 4.8 64 4.5 47 2.4 PIN RUN PIN RUN

PIN RUN 48 2.5 B 0 B 4.2

16.5 C3.1 C9.1

2 0 E 8.5 E 4.8

34.1

45.1

59.1

Q446

Q439

Q443

Q444

Q445

Q423

Q424

Q425

Q426

Q427

Q431

Q433

Q434

Q435

Q436

Q437

Q438

Q414

Q416

Q417

Q422

Q418

Q419

Q420

Q421

Q410

Q411

Q412

Q413

Jackpack Voltages

I401

I402

I406

I403

Q401

Q402

Q403

Q406

Q409

TO SHEET 11 Control Panel

TO SHEET 2

Signal

Video 2 Out

S2 In

Component In 2Component In 1

Video 1 Out

S1 In

Monitor Out

S-Monitor Outl

TO SHEET 2

Signal

TO SHEET 2

Signal

2345678910

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL . REPLACE ONLY WITH PART NUMBERS SPECIFIED.

7-7

ZP94/95 SHEET 7

Page 63

ZP94/95 3 Line Comb Filter

PIN RUN PIN RUN PIN RUN PIN RUN

B0 B0 11.6 12.6

C 0.1 C 4.9 2 4.4 2 4.7

E 0.7 E 0.9 3 4.1 3 1.9

PIN RUN PIN RUN 4 3.1 4 0.1

B 0 B 8.5 5 2.5 5 1.9

C 0.7 C 4.6 6 2.3 6 0.7

E 0 E 9.1 7 0.1 7 0

PIN RUN PIN RUN 8 4.1 8 2.2

B 0 B 8.5 9 4.1 9 2.2

C0 C0 104.1 100

E 0.7 E 9.2 11 1.6 11 2.6

PIN RUN PIN RUN 12 5 12 5

B 0 B 2.6 13 2.5 13 5.1

C0 C0.1 140 142.6

E 0.2 E 3.2 15 2.6 15 0

PIN RUN PIN RUN 16 0.1 16 2.6

B 0 B 6.9 17 0.1 PIN RU N

C 0 C 3.2 18 0.1 1 9.2

E 0.7 E 7.6 19 0.1 2 9.2

PIN RUN PIN RUN 20 6.7 3 0

B 0.1 B 2.7 21 0 4 5.1

C 0.1 C 0 22 9.1 5 5.1

E 0.2 E 3.3 23 9.1 6 0

PIN RUN PIN RUN 24 1.7 7 0

B 7.3 B 6.9 25 1.3 8 0

C9.2 C3.3 26 1 9 0

E 6.6 E 7.6 27 4.9 10 0

PIN RUN PIN RUN 28 4.9 11 0

B 0.2 B 2.8 29 5 12 0

C9.1 C0.1 30 5 13 0

E 0.2 E 3.4 31 0.1 14 0

PIN RUN PIN RUN 32 0 15 0

B 9.1 B 1.3 33 3.7 16 0

C0.3 C0.6 343.7 17 0

E 9.1 E 1.3 35 3.7 18 0

PIN RUN PIN RUN 36 0.2 19 0.8

B 1.2 B 3.5 37 3.6 20 0

C 0 C 9.2 38 3.6 PIN RUN

E 1.7 E 2.8 39 3.6 1 4.9

PIN RUN PIN RUN 40 9.1 2 4.9

B 0.6 B 4.9 41 2.8 3 0

C 0 C 0.1 42 2.6 4 4.7

E 1.3 E 4.3 43 2.6 5 11

PIN RUN PIN RUN 44 0.1 6 0

B 0.8 B 4.6 45 5.7 7 0

C1.6 C9.1 469.1 8 1.2

E 0.7 E 3.9 47 0 9 0

PIN RUN PIN RUN 48 3.4 10 0.2

B 5.3 B 4.6 49 5.5 11 0

C9.1 C8.5 505.1 120.5

E 4.6 E 4 51 5.1 13 0.3

PIN RUN PIN RUN 52 5.1 14 0

B 5.3 B 4.9 53 6.6 15 4.2

C9.1 C8.5 54 7 16 0

E 4.6 E 4.3 55 5.2 17 4.2

PIN RUN 56 0.2 18 0.1

B 7.7 19 4.2

C9.1 20 0

E7.1

Comb Filter Voltages

QX01

QX02

QX03

QX25

QX26

QX27

QX07

QX08

QX09

QX13

QX15

QX16

QX17

QX18

QX21

QX22

QX23

QX24

QX52

QX31

QX32

QX36

QX37

QX53

QX54

PSZ2

QX55

IX01

IX02

PSZ1

QX41

QX42

QX46

TO SHEET 2

Signal

TO SHEET 10

CRT

TO SHEET 2

Signal

2345678910

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL . REPLACE ONLY WITH PART NUMBERS SPECIFIED.

7-8

ZP94/95 SHEET 8

Page 64

ZP94/95 YC Circuit

TO SHEET ?

PYC1-11

PYC1-7

PYC1-9

PYC1-15

2345678910

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL . REPLACE ONLY WITH PART NUMBERS SPECIFIED.

7-9

ZP94/95 SHEET 9

Page 65

PIN RUN

B3.4

C12.7

E2.7

PIN RUN

B12

C27.9

E12.7

PIN RUN

B13.4

C22.3

E12.7

PIN RUN

B22.3

C27.9

E21.6

PIN RUN

B2.3

C15.4

E1.6

PIN RUN

B15.6

E16.2

PIN RUN

B16.1

C27.9

E15.5

PIN RUN

B15.5

C27.9

E14.9

PIN RUN

B14

E14.6

PIN RUN

B211.6

C10.7

E212.1

PIN RUN

B210.2

C187.7

E210.7

PIN RUN

B187

E187.8

PIN RUN

B25.1

C117

E24.6

PIN RUN

B1.4

C24.6

E0.9

PIN RUN

B12.4

C139.5

E11.9

PIN RUN

B12.5

C27.9

E11.9

QE36

QE24

QE25

QE26

QE35

QE10

QE11

QE22

QE23

QE04

QE05

QE07

QE08

Velocity Modulator

Voltages

QE01

QE02

QE03

ZP95 Velocity Modulator

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL . REPLACE ONLY WITH PART NUMBERS SPECIFIED.

2345678910

7-10

*ZP 95 Only*

ZP94/95 SHEET 10

Page 66

ZP94/95 CRT/CPT Circuit

PIN RUN PIN RUN

B3.4 B2.5

C8.4 C9.2

E2.9 E1.9

PIN RUN PIN RUN

B8.6 B1.8

C9.2 C1.1

E8.4 E1.1

PIN RUN PIN RUN

B9.1 B3.5

C172 C 8.3

E8.6 E 3

PIN RUN PIN RUN

B172 B 8.6

C1 C9.2

E 172.7 E 8.3

PIN RUN PIN RUN

B1.7 B164.5

C1 C1.1

E1 E164.9

PIN RUN PIN RUN

B3.4 B165.9

C8.3 C222

E2.9 E165.3

PIN RUN PIN RUN

B8.6 B3.1

C9.2 C 0

E8.3 E2.9

PIN RUN PIN RUN

B9.1 B3.7

C 159.6 C 9.2

E8.6 E3.1

PIN RUN PIN RUN

B159.6 B 0

C1.1 C9.1

E160.3 E 0

PIN RUN PIN RUN

B 161.3 B 1.7

C222 C 1.1

E160.9 E 1

PIN RUN

B1.9

E2.5

Q803

Q804

Q854

Q855

Q858

Q859

Q812

Q851

Q852

Q853

Q801

Q802

CRT Voltages

Q8C2

Q862

Q8A1

Q8A2

Q8A4

Q8A5

Q8A6

Q8A7

Q8C1

TO SHEET 8

Comb Filter

TO SHEET 3

Power Supply

TO SHEET5

Deflection

Test

Point

2345678910

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL . REPLACE ONLY WITH PART NUMBERS SPECIFIED.

7-11

ZP94/95 SHEET 11

Page 67

ZP94/95 Control Panel Circuit

PIN RUN

B0.12 C0 E0

PIN RUN

11.5

21.24

-- --

PIN RUN

B0 C0 E0

PIN RUN

B0 C0 E0

PIN RUN

B0 C0.8 E0

Control Panel

Volt ages

QM04

QM05

QM01

QM02

QM03

TO SHEET 2

Signal

TO SHEET 7

Jackpack

2345678910

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL . REPLACE ONLY WITH PART NUMBERS SPECIFIED.

7-12

ZP94/95 SHEET 12

Page 68

ZP94/95 Audio Circuit

PIN RUN PIN RUN

15.1 14.7

24.9 24.7

34.9 34.7

40.1 44.7

50.1 54.7

60.1 64.7

75.1 74.7

80 84.7

95.1 99.2

10 0 10 0

11 5.1 11 0.1

12 0.1 12 0.1

13 0.1 13 4.7

14 0.1 14 4.7

15 0.1 15 4.7

16 5.1 16 4.7

17 5.1 17 0

18 5.1 18 4.7

19 5.1 19 4.6

20 5.1 20 4.7

PIN RUN 21 4.6

10.1 224.7

2 0 PIN RUN

3 4.2 B 1.1

4 4.2 C 8.6

5 4.2 E 0.4

6 4.2 PIN RUN

70 B8.6

80 C4.1

90 E9.2

10 4.9 PIN RUN

11 4.9 B 1.1

12 0.1 C 8.6

13 0.1 E 0.4

14 3 PIN RUN

15 2.7 B 8.6

16 8.5 C 4.2

17 4.2 E 9.2

18 4.2 PIN RUN

19 4.2 B 0.1

20 0 C 0

21 4.2 E 0

22 0 PIN RUN

PIN RUN B 0

1 4.7 C 0.1

21.3 E 0

34.7

49.2

54.7

70.1

84.7

95.7

10 4.6

QA10

SIS Voltag es

IA01

IA05

IA02

IA03

QA11

QA12

QA07

QA08

QA09

TO SHEET 1

Micro

2345678910

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL . REPLACE ONLY WITH PART NUMBERS SPECIFIED.

7-13

ZP94/95 SHEET 13

Zenith IQC50H94W, IQC60H95W, IQC50H95W ZP94, ZP95 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual