Zenith R50W46, R57W46 Schematic

SERVICE MANUAL

Product Type: Projection TV Chassis: MP-03AA Manual Series: Manual Part #: Model Line: Product Year: 2003

R50W46 R57W46

Model Series:

CONTENTS

Product Specifications..................................................4

Description of Controls .................................................5

Adjustment Instructions...............................................12

Diagrams ...................................................................20

Parts List ...................................................................33

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

Published Oct. 2003

by Technical Publications

Zenith Electronics Corporation

201 James Record Road

Huntsville, Alabama 35824-1513

Printed in Korea

- 2 -

PRODUCT SAFETY

IMPORTANT SAFETY NOTICE

This manual was prepared for use only by properly trained audiovisual 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. If any fuse (or Fusible Resistor) in this TV receiver is blown, replace it only with the factory specified fuse type and rating. When replacing a high wattage resistor (Oxide Metal Film Resistor, over 1W), keep the resistor 10mm away from PCB. Always keep wires away from high voltage or high temperature parts.

Special components are also used to prevent 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. Service work should be performed only after you are thoroughly familiar with these safety checks and servicing guidelines.

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.

GENERAL GUIDANCE

An lsolation Transformer should always be used during the servicing of a receiver whose chassis is not isolated from the AC power line. Use a transformer of adequate power rating to protect against personal injury from electrical shocks. It will also protect the receiver and its components from being damaged by accidental shorts of the circuitry that may be inadvertently introduced during the service operation.

Before returning the receiver to the customer, always perform an AC leakage current check on the exposed metallic parts of the cabinet, such as antennas, terminals, etc., to be sure the set is safe to operate without damage of electrical shock.

LEAKAGE CURRENT COLD CHECK (ANTENNA COLD CHECK)

With the instrument’s AC plug removed from AC source, connect an electrical jumper across the two AC plug prongs. Place the AC switch in the on position, connect one lead of ohm-meter to the AC plug prongs tied together, and touch other ohm-meter lead in turn to each exposed metallic parts such as antenna terminals, phone jacks, etc. If the exposed metallic part has a return path to the chassis, the measured resistance should be between 1MΩ and 5.2MΩ. When the exposed metal has no return path to the chassis the reading must be infinite. Any other abnormality that exists must be corrected before the receiver is returned to the customer.

ELECTROSTATICALLY SENSITIVE DEVICES

Some semiconductor (solid-state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor “chip” components. The following techniques should be used to help reduce the incidence of component damage caused by static electricity.

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on the body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed for potential shock reasons prior to applying power to the unit under test.

2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as an ESD mat, to prevent electrostatic charge buildup or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.

4. Use only an anti-static solder removal device. Some solder removal devices not classified as “anti-static” can generate electrical charges sufficient to damage ES devices.

5. Do not use freon-propelled chemicals. These can generate electrical charge sufficient to damage ES devices.

6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil, or comparable conductive material.)

7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installed.

Caution: Be sure no power is applied to the chassis or circuit, and observe

all other safety precautions.

8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise, seemingly harmless motion, such as the brushing together of your clothing or the lifting of your foot from a carpeted floor, can generate static electricity sufficient to damage an ES device.)

REGULATORY INFORMATION

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna; Increase the separation between the equipment and receiver; Connect the equipment into an outlet on a circuit different from that to which the receiver is connected; Consult the dealer or an experienced radio/TV technician for help.

The responsible party for this device’s compliance is:

Zenith Electronics Corporation 201 James Record Road Huntsville, AL 35824, USA Digital TV Hotline: 1-800-243-0000

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SPECIFICATIONS.................................................................4

DESCRIPTION OF CONTROLS...........................................5

PROGRAMMING CODES.....................................................8

ADJUSTMENT INSTRUCTION...........................................12

PRINTED CIRCUIT BOARDS.............................................20

BLOCK DIAGRAM...............................................................31

EXPLODED VIEW..........................................................32,34

EXPLODED VIEW PARTS LIST....................................33,35

REPLACEMENT PARTS LIST............................................36

SCHEMATIC DIAGRAM..........................................................

TABLE OF CONTENTS

- 4 -

SPECIFICATIONS

Model

R50W46, R57W46

Power requirements AC 120V Television system NTSC Television channels VHF : 2 ~ 13, UHF : 14 ~ 69

Cable : 01 ~ 125

Power consumption See the back of the TV External antenna impedance 75 Ω Audio output 15W + 15W External Equipment Video input jacks (4 sets)

Input/output jacks and ports S-video input jacks (2)

Component input jacks (2 sets) DVI-HDTV input port (1) Variable audio output jacks (1 set) Monitor output jack (1)

- 5 -

DESCRIPTION OF CONTROLS

1 2 3 4 5 6 7 8 9

0

tv

vcr

cable

dvd

sat

mode

light

power

tv/video

sleep

comp/dvi

flashbk

ccarc

video

audio

fcr

mute

vol

ch

swappipch- pipch+

pip

still

pip input position

mts

menu exit

recordstop

pause

rew

play

ff

skip

right

enter

left

down

up

1. MODE INDICATOR LIGHTS

Show active remote mode every time any button is pressed.

2. MODE

Selects the remote operating mode: TV, VCR, Cable Box, DVD and Satellite. Select other remote modes, for the remote to operate external devices.

3. LIGHT

Illuminates the remote control keys.

4. TV/VIDEO

Selects TV, VIDEO, COMPONENT, or DVI mode.

5. COMP/DVI

Selects COMPONENT or DVI mode.

6. ARC

Selects 4:3, 16:9, Horizon, Zoom 1, or Zoom 2 picture formats.

7. NUMBER BUTTONS

Direct channel selection.

8. VIDEO

Selects factory preset picture settings:

Clear, Optimum,

Soft, or User.

9. FCR ( Favorite Channel Review )

Selects favorite channels. Refer to "Favorite channel memory".

10.CHANNEL UP/DOWN

• Selects the desired channel.

• Selects the desired menu option when menu is displayed on the screen.

VOLUME UP/DOWN

• Increases or decreases sound level.

• Enters or adjusts the selected menu when menu is displayed on the screen.

11.STILL

Freezes the sub picture in PIP mode. Freezes the currently-viewed picture.

12.MENU

Displays on-screen menus.

13.VCR BUTTONS

Control some video cassette recorders.

14.SKIP Left/Right

Playing CDs: Selects previous/next song. Playing DVDs: Selects previous/next movie chapter.

1 2

3 4

6

7

8 9

11

10

12

13

14

5

- 6 -

DESCRIPTION OF CONTROLS

1 2 3 4 5 6 7 8 9

0

tv

vcr

cable

dvd

sat

mode

light

power

tv/video

sleep

comp/dvi

flashbk

ccarc

video

audio

fcr

mute

vol

ch

swappipch- pipch+

pip

still

pip input position

mts

menu exit

recordstop

pause

rew

play

ff

skip

right

enter

left

down

up

15.POWER (or ON/OFF)

Refer to "Turning the TV on/off".

16.SLEEP (Sleep Timer)

Sets turn off time.

17.FLASHBK

Returns to the previous channel.

18. CC

Selects the CAPTIONS:

On, EZ Mute, or Off.

19.AUDIO

Selects the sound appropriate for the program's character;

Virtual, Flat, Music, Movie, Sports or

User.

20.MUTE (Two Levels)

Reduce sound to half volume or mute the sound entirely.

21.PIP (Picture-in-Picture) PIP

Selects the PIP mode, twin picture window, or POP mode.

PIPCH +

/

-

Selects the sub picture channel.

SWAP

Switches the main and sub pictures.

PIP INPUT

Selects the input signal for the sub picture.

POSITION

Moves the sub picture to another corner of the main picture.

22. MTS BUTTON

Selects MTS sound:

Mono, Stereo, or SAP.

23.UP

D

/ DOWNE/ LEFTF/ RIGHTG/ ENTER

• Navigates the on-screen menus to adjust the TV

settings and preferences.

• Displays current TV mode (Remote control only).

24.EXIT

Clears all on-screen displays and returns to TV viewing from any menu.

25.STAND BY INDICATOR (

rr

)

Illuminates brightly when the TV is in standby mode. Dims when the TV is switched on.

15

17

23 24

18

16

19

20

21

22

- 7 -

DESCRIPTION OF CONTROLS

Securing TV Position

• Position the TV and prevent it from being moved, by placing the 4 stoppers under the roller casters on the bottom of the TV.

• Casters (on TV bottom) Use to turn and move the TV easily.

Stopper

ch

volmuteentermenutv/video

on/off

26

15 4 12 23 20 25 10

on/off

CATV

VIDEO

ch

vol

index

enter

menutv/video

26

15

4 12 23 28 25 27 10

Front Panel Controls

This is a simplified representation of front panel.

26.REMOTE CONTROL SENSOR

27.LED (Light Emitting Diodes) Displays

LEDs light when source is selected or feature is present.

28.INDEX

Switches LED Display on or off.

* R40W46, R40W46F, R45W46, R45W46F

* R50W46, R57W46

- 8 -

PROGRAMMING CODES

TV

A MARK 112 143 ADMIRAL 072 081 161 AKAI 006 146 AMPRO 073 167 AMSTRAD 052 ANAM 043 054 056

080 104 108 112 115 118 121 131

AOC 004 006 058

112 BLAUPUNKT 088 CANDLE 002 003 004

006 CAPEHART 058 CETRONIC 043 CITIZEN 002 003 004

006 043 101

103 143 CLASSIC 043 CONCERTO 004 CONTEC 039 043 050

051 CORONADO 143 CRAIG 043 054 CROWN 043 143

CURTIS MATHES 004 006 101

116 143 CXC 043 DAEWOO 004 016 017

043 044 055

071 076 103

107 111 114

117 120 123

125 127 128

136 143 DAYTRON 004 116 143 DYNASTY 043 DYNATECH 062

ELECTROHOME 024 077 143

EMERSON 004 005 006

028 043 047

048 050 051

096 116 143

151 153 154

155 FISHER 007 057 FUNAI 028 043 FUTURETECH 043 GE 004 006 008

009 034 056

073 074 091

116 130 144

155 160 161

165

GOLDSTAR 004 102 106

110 112 113 116 119 122

127 137 143 HALL MARK 004 116 HITACHI 004 006 009

010 011 012

023 041 075

143 158 163

166 INFINITY 164 INKEL 129 JBL 164 JCPENNY 004 006 008

009 024 030

065 101 143

156 160 JENSEN 013 JVC 034 038 070

083 145 KEC 043 KENWOOD 006 070 KLOSS 002 059 KMC 143 KTV 006 043 143

154 LG 255 LODGENET 072 LOGIK 072 LUXMAN 004 LXI 007 015 052

081 160 164

166 MAGNAVOX 003 004 006

022 059 060

061 063 064

127 143 160

164 MARANTZ 006 077 164 MATSUI 164 MEMOREX 004 007 072

116 METZ 088 MGA 004 006 024

028 042 049

077 116 MINERVA 088 MITSUBISHI 004 006 024

028 040 042

109 116 124

146 MTC 004 006 062

101

NAD 015 025 NEC 006 007 016

019 024 040 056 130 132

134 NIKEI 043 ONKING 043 ONWA 043 OPTONICA 019 081 PANASONIC 034 056 080

092 164 PHILCO 003 004 006

024 043 056

059 060 063

064 127 143

164 PHILIPS 003 004 005

006 038 059

070 093 143

160 164 PIONEER 006 018 023

025 027 116

135 176 PORTLAND 004 143 PROSCAN 144 160 161

165 167 PROTON 004 058 116

131 143 171

173 QUASAR 034 056 092 RADIO SHACK 019 043 047

116 127 143 RCA 004 006 023

024 056 065

074 144 152

156 160 161

165 REALISTIC 007 019 043

047 ROCTEC 186 RUNCO 168 169 SAMPO 004 006 058

116 SAMSUNG 004 050 089

101 105 113

116 127 133

137 143 160 SANYO 007 020 021

033 039 053

057 082 166 SCOTT 004 028 043

048 116 143 SEARS 004 007 015

028 030 057

082 094 101

116 143 160

Sharp 004 014 019

022 028 029 081 143 170

175 SIEMENS 088 SIGNATURE 072 SONY 041 070 079

085 126 139

147 185 SOUNDESIGN 003 004 028

043 116 SPECTRICON 112 SSS 004 043 SUPRE MACY 002 SYLVANIA 003 004 006

044 059 060

063 064 116

127 140 160

164 TANDY 081 TATUNG 056 062 TECHNICS 034 080 084 TECHWOOD 004 TEKNIKA 002 003 004

006 024 028

031 043 072

077 101 103

143 TELEFUNKEN 037 046 086

087 TELERENT 072 TERA 172 TMK 004 116 TOSHIBA 007 015 030

040 051 062

101 138 TOTEVISION 143 UNIVERSAL 008 009 VIDEO CONCEPTS 146 VIDIKRON 174 VIDTECH 004 116 WARDS 004 008 009

019 028 060

061 063 064

072 074 116

143 164 YAMAHA 004 006 YORK 004 116 YUPITERU 043 ZENITH 001 072 073

095 103 157 ZONDA 112

Brand Codes Brand Codes Brand Codes Brand Codes

- 9 -

PROGRAMMING CODES

VCRs

AIWA 034 AKAI 016 043 046

124 125 146 AMPRO 072 ANAM 031 033 103 AUDIO DYNAMICS 012 023 039

043 BROKSONIC 035 037 129 CANON 028 031 033 CAPEHART 108 CRAIG 003 040 135 CURTIS MATHES 031 033 041 DAEWOO 005 007 010

064 065 108

110 111 112

116 117 119 DAYTRON 108 DBX 012 023 039

043 DYNATECH 034 053 ELECTROHOME 059 EMERSON 006 017 025

027 029 031

034 035 036

037 046 101

129 131 138

153 FISHER 003 008 009

010 FUNAI 034 GE 031 033 063

072 107 109

144 147 GO VIDEO 132 136 GOLDSTAR 012 013 020

101 106 114

123 HARMAN KARDON 012 045 HITACHI 004 018 026

034 043 063

137 150 INSTANTREPLAY 031 033 JCL 031 033 JCPENNY 012 013 015

033 040 066

101 JENSEN 043 JVC 012 031 033

043 048 050

055 060 130

150 152 KENWOOD 014 034 039

043 047 048 LG 255 LLOYD 034

LXI 003 009 013

014 017 034

101 106 MAGIN 040 MAGNAVOX 031 033 034

041 067 068 MARANTZ 012 031 033

067 069 MARTA 101 MATSUI 027 030 MEI 031 033 MEMOREX 003 010 014

031 033 034

053 072 101

102 134 139 MGA 045 046 059 MINOLTA 013 020 MITSUBISHI 013 020 045

046 049 051

059 061 151 MTC 034 040 MULTITECH 024 034 NEC 012 023 039

043 048 NORDMENDE 043 OPTONICA 053 054 PANASONIC 066 070 074

083 133 140

145 PENTAX 013 020 031

033 063 PHILCO 031 034 067 PHILIPS 031 033 034

054 067 071

101 PILOT 101 PIONEER 013 021 048 PORTLAND 108 PULSAR 072 QUARTZ 011 014 QUASAR 033 066 075

145 RCA 013 020 033

034 040 041

062 063 107

109 140 144

145 147 REALISTIC 003 008 010

014 031 033

034 040 053

054 101 RICO 058 RUNCO 148 SALORA 014

SAMSUNG 032 040 102

104 105 107 109 112 113 115 120 122 125

SANSUI 022 043 048

135

SANYO 003 007 010

014 102 134

SCOTT 017 037 112

129 131

SEARS 003 008 009

010 013 014 017 020 031 042 073 081

101 SHARP 031 054 149 SHINTOM 024 SONY 003 009 031

052 056 057

058 076 077

078 149 SOUNDESIGN 034 STS 013 SYLVANIA 031 033 034

059 067 SYMPHONIC 034 TANDY 010 034 TATUNG 039 043 TEAC 034 039 043 TECHNICS 031 033 070 TEKNIKA 019 031 033

034 101 THOMAS 034 TMK 006 TOSHIBA 008 013 042

047 059 082

112 131 TOTEVISION 040 101 UNITECH 040 VECTOR RESEARCH 012 VICTOR 048 VIDEO CONCEPTS 012 034 046 VIDEOSONIC 040 WARDS 003 013 017

024 031 033

034 040 053

054 131 YAMAHA 012 034 039

043 ZENITH 001 034 048

056 058 072

080 101

Brand Codes Brand Codes Brand Codes

- 10 -

PROGRAMMING CODES

SAT

ALPHASTAR DSR 123 AMPLICA 050 BIRDVIEW 051 126 129 BSR 053 CAPETRONICS 053 CHANNEL MASTER 013 014 015

018 036 055

CHAPARRAL 008 009 012

077 CITOH 054 CURTIS MATHES 050 145 DRAKE 005 006 007

010 011 052

112 116 141 DX ANTENNA 024 046 056

076 ECHOSTAR 038 040 057

058 093 094

095 096 097

098 099 100

122 ELECTRO HOME 089 EUROPLUS 114 FUJITSU 017 021 022

027 133 134

GENERAL INSTRUMENT 003 004 016

029 031 059

101

HITACHI 139 140 HOUSTON TRACKER 033 037 039

051 057 104 HUGHES 068 HYTEK 053 JANIEL 060 147 JERROLD 061 KATHREIN 108 LEGEND 057 LG 255 LUTRON 132 LUXOR 062 144 MACOM 010 059 063

064 065 MEMOREX 057 NEXTWAVE 028 124 125 NORSAT 069 070 PACE SKY SATELLITE143 PANASONIC 060 142 PANSAT 121 PERSONAL CABLE 117 PHILIPS 071 PICO 105 PRESIDENT 019 102 PRIMESTAR 030 110 111 PROSAT 072 RCA 066 106

REALISTIC 043 074 SAMSUNG 123 SATELLITE SERVICE CO 028 035 047

057 085 SCIENTIFIC ATLANTA 032 138 SONY 103 STARCAST 041 SUPER GUIDE 020 124 125 TEECOM 023 026 075

087 088 090

107 130 137 TOSHIBA 002 127 UNIDEN 016 025 042

043 044 045

048 049 078

079 080 086

101 135 136 VIEWSTAR 115 WINEGARD 128 146 ZENITH 001 081 082

083 084 091

120

Brand Codes Brand Codes Brand Codes

DVD

APEX DIGITAL 022 DENON 020 014 GE 005 006 GOLDSTAR 010 016 025 HARMAN KARDON 027 JVC 012 LG 001 010 016

025

MAGNAVOX 013

MARANTZ 024 MITSUBISHI 002 NAD 023 ONKYO 008 017 PANASONIC 003 009 PHILIPS 013 PIONEER 004 026

PROCEED 021 PROSCAN 005 006 RCA 005 006 SAMSUNG 011 015 SONY 007 THOMPSON 005 006 TOSHIBA 019 008 YAMAHA 009 018 ZENITH 010 016 025

Brand Codes Brand Codes Brand Codes

- 11 -

PROGRAMMING CODES

CATV

ABC 003 004 039

042 046 052

053 ANTRONIK 014 ARCHER 005 007 014

024 CABLE STAR 026 CENTURION 092 CENTURY 007 CITIZEN 007 COLOUR VOICE 065 090 COMBANO 080 081 COMTRONICS 019 030 DIAMOND 023 EAGLE 020 030 040 EASTERN 057 062 066 ELECTRICORD 032 GE 072 GEMINI 008 022 025

054 GI 052 074 GOLDEN CHANNEL 030 HAMLIN 049 050 055 HITACHI 052 055 HOSPITALITY 070 077 JERROLD 002 003 004

008 009 010

052 069 074

LG 255 M-NET 037 MACOM 033 MAGNAVOX 010 012 064

079 MEMOREX 001 MOVIE TIME 028 032 NSC 015 028 038

071 073 OAK 016 031 037

053 PANASONIC 044 047 PARAGON 001 PHILIPS 006 012 013

020 065 085

090 PIONEER 034 051 052

063 076 POST NEWS WEEK 016 PRUCER 059 PTS 011 048 071

072 073 074 PULSAR 001 RCA 047 REGAL 049 050 REGENCY 057 REMBRANT 025 RK 091

SAMSUNG 030 068 SCIENTIFIC ATLANTA 003 011 041

042 043 045

046 SHERITECH 022 SIGNAL 030 SIGNATURE 052 SL MARX 030 SPRUCER 047 078 STARCOM 002 004 008

009 STARGATE 008 030 SYLVANIA 067 TADIRAN 030 TANDY 017 TEXSCAN 029 067 TOCOM 039 040 056 TOSHIBA 001 UNIKA 007 014 024 UNITED CABLE 004 053 UNIVERSAL 007 014

024 026 027

032 035 VIEWSTAR 012 015 018

086 087 088

089 ZENITH 001 060 093

Brand Codes Brand Codes Brand Codes

These instructions are applied to only MP-03AA/B chassis.

Notes

1.Because this is not a hot chassis, it is not necessary to use an isolation transformer. However, the use of isolation transformer will help protect test instrument.

2.Adjustments must be done in the correct order.

3.The receiver must be operated for about 60 minutes proir to the adjustment. Pre-heatrun must be operated receiving moving pictures or 100% white pattern.

[ Never operate the SET over 10 minutes with still picture

because a fluorescent material may get damage.

1. Raster Slant/Focus Adjustment

1-1. Preliminary steps

(1) Apply power to the unit and switch the unit ON. (2) Receive the signal. (3) Select INSTART key on the Service Remote and then

select “0 RASTER ADJ” move the cursor or by pressing the key No. 0.

(4) Adjust Lens Focus/Electric focus temporarily.

[ When selecting “0 RASTER ADJ” mode after entering

adjustment mode with INSTART key, the convergence resets and then preparation for adjustment complete.

[ The convergence reset is possible even from convergence

adjustment mode.

1) Enter into convergence adjustment mode: Select INSTART key on the Service Remote and then select “3 CONVERGENCE” move the cursor or using the key No..

2) Convergence reset: After press the key No. 5, press the ENTER key.

3) Adjustment mode release: Press the INSTART key

1-2. Adjustment

(1) Make Green raster by covering Red and Blue. (2) Rotate Green DY and tilt the screen like figure below.

(3) Make 2 color raster with Red or Blue and Green. (4) Coincide the slope of red and blue raster to that of green.

Note) 1. When adjusting raster slope, loosen the DY and fasten it

after adjusting.

2. Never rotate and adjust the fixed DY without loosing it.

(5) After adjustment complete, exit the RASTER adjustment

mode using ENTER key and exit the SVC adjustment mode using INSTART key.

[ When release the RASTER adjustment mode using

ENTER Key it turns the data of the convergence with in situ automatically and the adjustment is completed.

2. Beam Alignment Adjustment

2-1. Test Equipment

Video Test Generator(801GF) or Signal Generator that can produce NTSC DOT pattern(408NPS or 5518/5418 equipment)

2-2. Preliminary steps

(1) Heat run over 45 minutes. (2) Pre-adjust Raster slope, Raster position, Centering

Magnet & Lens focus. (3) Check if the Magnet is located 45mm from the end of CRT. (4) In case of using 801GF : Receive #13 DOT Pattern of

VGA mode(Format #5) through PC input terminal.

In case of using NTSC generator : Receive Dot signal

through the external input terminal.

2-3. 2-Pole Magnet Adjustment

(1) Make Green raster by covering Red and Blue. (2) Check the center position of DOT pattern on the center of

the screen after turning Green focus volume left.

- 12 -

ADJUSTMENT INSTRUCTIONS

Mechanical Center

Green Light

Red/Blue Light

45mm

(3) Turning green focus volume right and adjust 2-Pole

magnet so the position to coincide that of item ”(2)”.

(4) Adjust not to shift the screen by turning green focus

volume clockwise and counter clockwise. (5) If the screen shifts, readjust (2)~(4). (6) Do the same method in Red and Blue.

2-4. Beam Shape(4 & 6-Pole Magnet)

Adjustment

(1) Do after 2-Pole magnet adjustment. (2) Make Green raster using lens cover and turn the focus

volume right. (3) Make the dot in the center a perfect circle using 4 & 6-Pole

magnet. (4) Do the same method in Red & Blue. (5) Fasten the Magnet after adjustment. (6) Adjust focus accurately.

3. Centering Magnet Adjustment

3-1. Preliminary steps

(1) Receive the image signal. (2) Select INSTART key on the Service Remote and then

select “0 RASTER ADJ” move the cursor or using the key

No.. (3) When selecting the adjustment mode, the convergence

resets automatically and then preparation for adjustment

complete.

3-2. Adjustment

(1) Execute adjustment of Red, Green and Blue centering

Magnet.

Locate the Green centering Magnet in middle. (2) Application the SGS THOMSON CONVERGENCE ASSY,

adjust center of Blue image signal from the center of Green

image signal 30!3mm in order to reach this standing with

the left side, adjust center of Red image signal from the

center of Green image signal 30!3mm in order to reach

this standing with the right side (3) After adjustment complete, exit the RASTER adjustment

mode using ENTER key and exit the SVC adjustment

mode using INSTART key.

4. High Voltage Regulation Adjustment

4-1. Test Equipment

Digital Multi-Meter(DMM)

4-2. Preliminary steps

Select INSTART key on the Remote Control and then select “1 HIGH VOLTAGE ADJ” move the cursor or using the key No.. (Manual adjustment : setting contrast/bright to 0 (A/V no signal))

4-3. Adjustment

(1) Connect DMM to the P415(+), P416(-) of Deflection Board. (2) Adjust VR401 so that the P415(+), P416(-) voltage is

21.7!0.1V. (High voltage 31.5KV)

(3) After adjustment complete, exit the High Voltage

adjustment mode using any key and exit the SVC adjustment mode using INSTART key.

5. CUT-OFF Voltage Adjustment

5-1. Preliminary steps

(1) Select INSTART key on the Remote Control and then

select “2 SCREEN ADJ” move the cursor or using the key No..

(2) Adjustment must be operated in a dark room (simple dark

room)

5-2. Adjustment

(1) Test Equipment: Oscilloscope, 100:1 Probe (2) Connect oscilloscope to cathode of R, G, B(R926R/B/G:

SCREEN ADJ on the PCB) and GND.

(3) Turning Screen Volume (R/G/B) in Focus Pack and adjust

R/G/B is 165V!0.5V.

(4) After adjustment complete, exit the CUT-OFF adjustment

mode using ENTER key and exit the SVC adjustment mode using INSTART key.

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ADJUSTMENT INSTRUCTIONS

2 Pole Magnet

4 Pole Magnet

6 Pole Magnet

0V

165V±0.5V

6. Deflection Adjustment

6-1. Preliminary steps

After adjusting the NTSC first, 1080i it adjust.

6-2. NTSC Adjustment

(1) Preliminary steps

1) Select INSTART key on the Service Remote and then select “0 RASTER ADJ” move the cursor or using the key No..

2) Make Green raster using lens cover.

(2) Adjustment

1) Select the below each mode using CHD, CHE on the Service Remote Control and adjust using

VOLG, VOLF.

2) Check the H POSI, V POSI is 21, 38 and When is wrong, adjust each at corresponding price.

3) Does not adjust H, V Position in the NTSC Mode, adjust with centering magnet.

4) H SIZE : Horizontal SIZE Adjustment Adjust until third line of circle outermost horizontal size is accord with the edge of the frame.

5) V-SIZE : Vertical SIZE Adjustment Adjust until fifth Vertical BAR from upper and lower center of the screen is accord with the last point of the frame.

6) UP VLI : Upper Vertical Linearity Adjustment Adjust the vertical interval of screen upper.

7) LO VLI : Lower Vertical Linearity Adjustment Adjust the vertical interval of screen lower.

8) PIN PH : Horizontal Trapezoid Fixation Adjust the horizontal width of screen upper and lower is to be same.

9) PIN AM : Horizontal PARABOLA Correction Adjust the vertical line of most angle lattice of right/ left of screen to be balance with vertical line of center of screen.

10) V LIN : Vertical Linearity Adjustment Adjust the vertical size of the screen to be same with upper and lower.

11) S CORR : S Correction Adjust the each lattice width Top/Center/Bottom of screen to be identical.

12) UP CPI : Upper Pincushion Correction Adjust the pincushion of upper of screen

13) LO CPI : Lower Pincushion Correction Adjust the pincushion of lower of screen

14) After adjustment complete, exit the RASTER adjustment mode using ENTER key and exit the SVC adjustment mode using INSTART key.

6-3. 1080i Adjustment

(1) Test Equipment

SETTOP BOX with 1080i output

(2) Preliminary steps

1) After adjust 1080i with output of the SETTOP BOX, connects the Y signal which is output from SETTOP BOX with the VIDEO input terminal of the SIDEAV(AV3).

2) Select INSTART key on the Remote Control and then select “8 1080I-ADJ” move the cursor or using the key No.. Connected to AV3 is 1080i the black/white signal appears in the screen.

3) Select INSTART key on the Remote Control and then select “0 RASTER ADJ” move the cursor or using the key No..

4) Make Green raster using lens cover.

(3) Adjustment

1) Select the below each mode using CHD, CHE on the Remote Control and adjust using VOLG, VOLF.

2) H POSI : Horizontal Position Adjustment Adjust so that the horizontal center line of screen is in accord with geometric horizontal center line of the screen JIG.

3) V POSI : Vertical Position Adjustment Adjust so that the vertical center line of screen is in accord with geometric vertical center line of the screen JIG.

4) H SIZE : Horizontal SIZE Adjustment Adjust until third line of circle outermost horizontal size is accord with the edge of the frame.

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ADJUSTMENT INSTRUCTIONS

Fig. 3

Fifth Vertical BAR

Third line

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