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SERVICE MANUAL

COPYRIGHT © 2005 Victor Company of Japan, Limited

No.YA173

2005/2

REAR PROJECTION TELEVISION

YA173

2005

2

AV-48P775

/H

,

AV-56P775

/H

,

AV-56P785

/H

TABLE OF CONTENTS

1

PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

2

SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

3

DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

4

ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20

5

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-59

BASIC CHASSIS

RP

[ AV-56P775 ]

INPUT

INDEX

ASPECT

FREEZE

SWAP

SELECT

FAVORITE

THEATER

PRO

NATURAL

CINEMA

VIDEO

STATUS

TIMER

i.LINK MENU

SOUND

LIGHT

TV CATV VCR DVD

MUTING

MENU

BACK

GUIDE

RM-C14G

REW

VCR CHANNEL

PREV NEXT

VCR DVD

POWER

TV VCR

FF

PLAY

REC

PAUSE

OPEN CLOSE

STILL PAUSE

STOP

CH

CH

VOL

VOL

OK

MULTI SCREEN

TWIN

D/A

1

2

3

4

5

6

7

8

9

0

TUNE

TV

POWER

C.C.

SUB

CHANNEL

SUB

ML/MTS

SLEEP

DISPLAY

+

1
2
3
...
»

Summary of Contents for AV-48P775/H

Page 1: ...4 ADJUSTMENT 1 20 5 TROUBLESHOOTING 1 59 BASIC CHASSIS RP AV 56P775 INPUT INDEX ASPECT FREEZE SWAP SELECT RETURN FAVORITE THEATER PRO NATURAL CINEMA VIDEO STATUS TIMER i LINK MENU SOUND LIGHT TV CATV VCR DVD MUTING MENU BACK GUIDE RM C14G REW VCR CHANNEL PREV NEXT VCR DVD POWER TV VCR FF PLAY REC PAUSE OPEN CLOSE STILL PAUSE STOP CH CH VOL VOL OK MULTI SCREEN TWIN D A 1 2 3 4 5 6 7 8 9 0 TUNE TV P...

Page 2: ...cm 16 9 ratio Projection Tube 17cm 6 7 tube 3 R G B High Voltage 31kV 1 0kV 1 3kV at zero beam current Speaker 13cm round type 2 Audio Power Output 10W 10W Full range Antenna Terminal VHF UHF ATSC DIGITAL CABLE IN 75Ω unbalanced coaxial F type connector 2 External Input 1 2 3 4 Component Video INPUT 1 2 720p 1080i 480i 480p S Video INPUT 1 3 4 Video Audio RCA pin jack 6 Y 1V p p sync signal 0 35V ...

Page 3: ...r adjusted See ADJUSTMENT OF B1 POWER SUPPLY 8 Do not check high voltage by drawing an arc Use a high voltage meter or a high voltage probe with a VTVM Discharge the picture tube before attempting meter connection by connecting a clip lead to the ground frame and connecting the other end of the lead through a 10kΩ 2W resistor to the anode button 9 When service is required observe the original lead...

Page 4: ...and select the CONVERGENCE in the INITIAL SETUP menu with function up down key 2 Press the function left right key the CONVERGENCE menu appears 3 Press the function up down key and select the MANUAL 4 Press the function left right key then CONVERGENCE adjustment screen appear Fig 1 If all the crosses are white no convergence adjustment is needed 5 Select the location you want to adjust by using th...

Page 5: ...NALOG R L VIDEO DIGITAL AUDIO DIGITAL DIGITAL IN VIDEO AUDIO L R i LINK IN OUT S400 TS ATSC DIGITAL CABLE IN CABLE CARD OPTICAL OUT Digital Audio SERVICE ONLY MONITOR REC OUT MENU POWER CHANNEL VOLUME SUPER FOCUS OPERATE INPUT 4 S VIDEO VIDEO AUDIO R L MONO OVER FRONT CONTROL KEY TERMINAL REAR TERMINAL MENU OPERATE button CHANNEL OPERATE buttons VOLUME buttons SUPER FOCUS button POWER button INPUT...

Page 6: ...CT FREEZE SWAP 5 INPUT key 6 D A key The D A key changes the analog and digital channel Cable card is inserted into the TV can not use this key 7 i LINK MENU key 8 TIMER key 9 TUNE key 10 FAVORITE key 11 THEATER PRO key 12 C C Closed Caption key 13 SOUND keys 14 MUTING key memory key 15 OK key 16 VOL keys Set the setting value for SERVICE 17 MENU keys 18 SLEEP key Enter the SERVICE MENU 19 DISPLAY...

Page 7: ... for MAIN CCD 40 CLH I Clamp high level for MAIN CCD 41 VDD I 3 3V 42 SCL4 O I2C bus data for JCC5055 43 NC O 44 LED_ONTIMER O Lighting for on temer LED ON TIMER ON H 45 CONVER_RXD O Convergence control 46 CONVER_TXD I Convergence control 47 SBT1 I Use for on board writing Setting H 48 NC O 49 ATSC_RST O Reset for ATSC tuner Reset L 50 NC O 51 ATSC POW O ATSC power control ON H 52 NC O 53 NC O 54 ...

Page 8: ...TROL PWB ASS Y SRP0L009A M2 8 REMOTE SENSOR PWB ASS Y SRP 8001A M2 9 VM PWB ASS Y SRP 7209A M2 10 SD CARD PWB ASS Y SRP 8509A M2 11 R CRT SOCKET PWB ASS Y SRP 3109A M2 12 G CRT SOCKET PWB ASS Y SRP 3209A M2 13 B CRT SOCKET PWB ASS Y SRP 3309A M2 14 ATSC TUNER MODULE SSD 2103A M2 PROJECTION UNIT FRONT CONTROL ASS Y AV TERMINAL BOARD VM PWB This figure is only MAIN UNIT G CRT SOCKET PWB 11 R CRT SOC...

Page 9: ...N The projection units include locations that are not to be disassembled during service When replacing projection unit parts disassemble to the state indicated in the figure below The figure indicates screws and wires that are not to be removed Use care not to remove these Leave the screen with protector fresnel lens and double lenticular lens attached If cannot be disassembled further SCREEN FRON...

Page 10: ... Take out the FRONT CONTROL BOX 1 Remove 2 screws E 2 Take out the connector CN00R CN001G CN001H on the FRONT CONTROL PWB 3 Remove 3 screws F from rear side of FRONT CONTROL BOX 4 Take out the FRONT CONTROL PWB Fig 1 FRONT VIEW SPEAKER FRONT CONTROL BOX A x2 x2 x3 x5 x2 x2 x5 x4 x4 x4 x4 B C A CLAW CLAW CLAW SPEAKER GRILL SPEAKER GRILL SPEAKER WIRE E CN00R D F CN001G CN001H FRONT CONTROL BOX FRONT...

Page 11: ...TROL BOX Take out the SCREEN ASS Y 1 Remove the 1 screw C attaching the SENSOR HOLDER 2 Remove the claw of the SENSOR HOLDER to take out the CONVERGENCE SENSOR 3 Take out the 3 others CONVERGENCE SENSOR same manner Fig 3 3 1 8 MIRROR Take out the SPEAKER GRILLE Take out the FRONT CONTROL BOX Take out the SCREEN ASS Y 1 Remove 9 screws D attaching the mirror brackets of the upper left and right sid...

Page 12: ...KER GRILLE Take out the FRONT CONTROL BOX Take out the SCREEN ASS Y 1 Remove 2 screws C 2 Remove 2 screws D from front side 3 Slightly pull for backside to disengage of the REAR COVER from hooks 4 Take out the REAR COVER NOTE Because of the large size at least 2 persons are recommended for removal and reassemble Fig 6 Prior to starting the work be sure to read the following written instructions on...

Page 13: ...ION UNIT Do not look the projection side of a PROJECTION UNIT when the image is projected 3 1 12 1 CHECKING THE P W BOARD When checking the MAIN PWB POWER LINE FILTER PWB DEF CONVERGENCE OUT PWB etc raise the MAIN UNIT with the front side down for the make of convenience 3 1 13 FOCUS PACK Take out the MAIN UNIT 1 Remove 1 screw C Fig 7 2 Take out the FOCUS PACK 3 Take out wires connecting the FOCU...

Page 14: ...MI COM DIST MODULE PWB and ATSC TUNER MODULE 3 1 19 SD CARD PWB Take out the REAR PANEL Take out the MAIN CHASSIS 1 Remove 3 screws F 2 Disconnect the connector CN1001 on the SD CARD PWB 3 Take out the SD CARD PWB 3 1 20 DIGITAL CONVERGENCE MODULE PWB Take out the REAR PANEL Take out the MAIN CHASSIS 1 Remove 2 screws G 2 Take out the DIGITAL CONVERGENCE MODULE PWB 3 1 21 DEF CONVERGENCE OUT PWB T...

Page 15: ...ons Performance can be affected if these are not returned to the original positions 3 1 24 HV DIVIDER Take out the REAR PANEL 1 Remove 1 screw B 2 Take out the HV DIVIDER Wires of the transformer FBT and CRT of each PROJECTION UNIT can be removed by turning the connector portions NOTE If necessary remove the anode wires and replacing the HV DIVIDER take care to correctly engage the connector 3 1 2...

Page 16: ...ge Where these do not agree refer to the OPERATING INSTRUCTIONS USER S GUIDE and set the items as described Fig 1 Fig 2 3 2 3 SERVICE ADJUSTMENT ITEM 1 PICTURE SOUND 2 YC SEP 3 WHITE BALANCE 4 MEMORY SETUP 5 RF AFC 6 CONVER A 7 CONVER B 8 IP 9 DSD 0 HDMI SERVICE MENU INPUT INDEX ASPECT FREEZE SWAP SELECT RETURN FAVORITE THEATER PRO NATURAL CINEMA VIDEO STATUS TIMER i LINK MENU SOUND LIGHT TV CATV ...

Page 17: ...ATER 0 0 0 0 0 LOW DYNAMIC 0 0 5 0 10 LOW GAME 0 0 10 0 0 HIGH Band CH display Setting Band CH display Setting VHFL 02 YES SUPER J 23 YES D03 1 YES K 24 D03 2 YES L 25 D03 3 YES M 26 04 YES N 27 05 YES O 28 06 YES P 29 VHFH 07 YES Q 30 08 YES R 31 YES 09 YES S 32 YES 10 YES T 33 11 YES U 34 12 YES V 35 13 YES W 36 YES UHF 14 YES SUBMID A 5 95 YES D22 1 YES A 4 96 YES 36 YES A 3 97 YES D40 1 YES A ...

Page 18: ...REGULAR DYNAMIC NATURAL CINEMA BASS TREBLE BALANCE MTS ON OFF TIMER LANGUAGE NOISE MUTING FRONT PANEL LOCK CLOSED CAPTION FRONT PANEL LOCK V1 SMART INPUT VIDEO INPUT LABEL AUTO Center STEREO OFF ENG ON OFF OFF CC1 T1 OFF OFF BLANK SOUND A H S BBE SMART SOUND OFF OFF ON OFF AV 56P585 only SPLIT SOURCE LEFT SIDE CA 02 RIGHT SIDE INPUT1 AUTO SHUT OFF DIGITAL IN DIGITAL AUDIO CHANNEL SUMMARY V CHIP AU...

Page 19: ...the tweezers and remove the chip part Transistors diodes variable resistors etc 1 Apply extra solder to each lead 2 As shown in the figure push the part with tweezers and alternately melt the solder at each lead Shift and remove the chip part Note After removing the part remove remaining solder from the pattern 2 How to install Chip parts Resistors capacitors etc 1 Apply solder to the pattern as i...

Page 20: ...h the remote control unit SETTING POSITION 4 2 MEASURING INSTRUMENT AND FIXTURES 1 DC voltmeter or digital voltmeter 2 Oscilloscope 3 Signal generator Pattern generator NTSC 480i 480p 720p 1080i 4 TV audio multiplex signal generator 5 Remote control unit 4 3 ADJUSTMENT FLOWCHART WHEN REPLACING SCREEN AND PROJECTION UNIT Contains only the main adjustments Also confirm other adjustments as required ...

Page 21: ... BALANCE 4 MEMORY SETUP 5 RF AFC 6 CONVER A 7 CONVER B 8 IP 9 DSD 0 HDMI ADDR 0000 0 1 2 3 4 5 6 7 AA 55 00 00 FF 00 00 00 00 00 00 00 00 00 00 00 8 9 A B C D E F SERVICE MENU 1 PICTURE SOUND 5 RF AFC 6 CONVER A 7 CONVER B 8 IP 9 DSD 0 HDMI 2 YC SEP 3 WHITE BALANCE 4 MEMORY SETUP CPA01 FINE OFF 0 S01 COLOR 099 D01 V SIZE 049 F01 001 A01 A27 S01 S99 D01 D32 F01 F70 DO NOT ADJUST DO NOT ADJUST DO NO...

Page 22: ...ust 3 WHITE BALANCE This sets the setting values of the WHITE BALANCE 4 MEMORY SETUP This sets the setting values of the MEMORY ADDRESS Do not adjust 5 RF AFC This is used when the IF VCO is adjusted Do not adjust 6 CONVER A This is used when the CONVERGENCE is adjusted 7 CONVER B This is used when the CONVERGENCE is adjusted 8 IP This sets the setting value of the DIST circuit Do not adjust 9 DSD...

Page 23: ...B is up RETURN key CUTOFF B is down 4 MEMORY SETUP Main memory data edition Do not adjust 5 RF AFC Setting the RF VCO adjustment Do not adjust A AUDIO S SIGNAL D DEFLECTION F FACTORY SETTING F01 D01 S01 A01 Item No is up down F01 D01 S01 A01 Skip change 1 PICTURE SOUND SETTING VALUE SETTING ITEM NAME SETTING ITEM No A01 A27 S01 S99 D01 D32 F01 F70 NTSC FULL ST L FL MUTE A01 IN LEVEL 008 NTSC FULL ...

Page 24: ...ultaneously to enter the TEST MODE MENU screen as shown in the Fig 1 3 Press 5 key to enter the 5 CONVER OFF 4 Press INPUT key to select the crosshatch pattern SETTING ITEM NAME SETTING VALUE CPA01 FINE OFF 0 CPA01 FINE OFF 0 CPA01 FINE OFF 0 CPA01 CPA11 CCA01 CCA12 CBA01 CBA94 6 CONVER A SETTING ITEM No CBA01 CCA01 CPA01 Skip change 7 CONVER B NTSC FULL ST L FL MUTE IPA001 0C7 IPA001 IPA042 SETTI...

Page 25: ...name Variable range Initial setting value AV 48P775 AV 56P775 AV 56P785 A01 IN LEVEL 000 015 008 007 007 A02 LOW SEP 000 063 035 035 035 A03 HI SEP 000 063 020 020 020 A04 BBE BASS 128 127 010 010 010 A05 BBE TRE 128 127 000 000 000 A06 SURROUND 000 001 000 000 000 A07 BASS OFS 128 127 017 017 017 A08 TRE OFS 128 127 009 009 009 A09 AHS MVE 128 127 000 000 000 A10 AHS MSC 128 127 000 000 000 A11 N...

Page 26: ...9 051 040 044 060 064 046 047 Item No Item name Variable range 720p 1080i STANDARD THEATER 48 56 48 56 S03 BRIGHT 000 255 127 130 123 125 S04 CONTRAST 000 127 056 066 044 046 Item No Item name Variable range NTSC 480i STANDARD THEATER STANDARD THEATER 48 56 48 56 48 56 48 56 S05 0 MTX SW 000 003 000 000 000 000 000 000 000 000 S06 INPUT SW 000 003 001 001 001 001 001 001 001 001 S07 B Y 000 063 01...

Page 27: ...em name Variable range NTSC 480i 480p 720p 1080i STANDARD THEATER STANDARD THEATER STANDARD THEATER S14 CUTOF R 000 255 185 185 185 S15 Not display 128 127 004 000 008 S16 CUTOF G 000 255 185 185 185 S17 Not display 128 127 000 000 000 S18 CUTOF B 000 255 185 185 185 S19 Not display 128 127 004 000 008 S20 CUTOF SW R 000 003 001 001 001 S21 CUTOF SW G 000 003 001 001 001 S22 CUTOF SW B 000 003 001...

Page 28: ...7 YGM OFF 000 001 000 001 S38 ABL OFF 000 001 000 000 S39 ACL OFF 000 001 000 000 Item No Item name Variable range Initial setting value S40 BLCNT LK 000 001 000 S41 YGCNT LK 000 001 000 S42 DCTRN PL 000 001 000 S43 ABL GAIN 000 015 015 S44 ABL STRT 000 015 015 S45 ACL GAIN 000 015 015 S46 ACL STRT 000 015 000 Item No Item name Variable range MULTI SCREEN ASPECT VIDEO STATUS OTHERS TWIN REGULAR TH...

Page 29: ... Not display 000 001 000 S75 Not display 000 001 000 S76 Not display 000 001 000 S77 Not display 000 001 000 S78 Not display 000 001 000 S79 Not display 000 001 000 S80 Not display 000 001 000 S81 Not display 000 001 000 S82 Not display 000 001 000 S83 Not display 000 001 000 S84 Not display 000 001 000 S85 Not display 000 001 000 S86 Not display 000 001 000 S87 Not display 000 001 000 S88 Not dis...

Page 30: ...3 Not display 000 015 000 000 D14 H CENTER 000 255 117 117 D15 H FREQ 000 255 190 190 D16 Not display 000 127 100 100 D17 Not display 000 003 000 000 D18 Not display 000 001 000 000 D19 Not display 000 001 000 000 D20 Not display 000 001 000 000 D21 Not display 000 001 000 000 D22 Not display 000 001 000 000 D23 Not display 000 001 000 000 D24 Not display 000 001 000 000 D25 Not display 000 001 00...

Page 31: ...00 001 000 F32 ATT V 000 001 000 F33 ATT U 000 001 000 F34 ATT C 000 001 000 F35 Not display 000 001 000 F36 Not display 000 001 000 F37 Not display 000 001 000 F38 DC1 000 001 000 F39 DC4 000 001 000 F40 DC5 000 001 000 Item No Item name Variable range Initial setting value Item No Item name Variable range NTSC 480i 480p 720p 1080i F41 SS LV 000 003 000 002 002 002 002 F42 SS CP 000 001 000 000 0...

Page 32: ...036 Not display 000 001 001 YCM037 Not display 000 003 001 YCM038 Not display 000 127 062 YCM039 Not display 000 127 073 YCM040 Not display 000 003 002 YCM041 Not display 000 063 016 YCM042 Not display 000 001 000 YCM043 Not display 000 001 000 YCM044 Not display 000 255 241 YCM045 Not display 000 001 000 YCM046 Not display 000 255 165 YCM047 Not display 000 001 001 YCM048 Not display 000 001 001 ...

Page 33: ...ot display 000 001 001 YCM128 Not display 000 001 001 Item No Item name Variable range Initial setting value YCM129 Not display 000 001 001 YCM130 Not display 000 003 001 YCM131 Not display 000 255 050 YCM132 Not display 000 255 154 YCM133 Not display 000 255 055 YCM134 Not display 000 007 001 YCM135 Not display 000 255 136 YCM136 Not display 000 001 000 YCM137 Not display 000 001 001 YCM138 Not d...

Page 34: ...isplay 000 003 001 YCS031 Not display 000 001 000 Item No Item name Variable range Initial setting value YCS032 Not display 000 003 003 YCS033 Not display 000 001 001 YCS034 Not display 000 001 000 YCS035 Not display 000 255 096 YCS036 Not display 000 001 001 YCS037 Not display 000 003 001 YCS038 Not display 000 127 062 YCS039 Not display 000 127 073 YCS040 Not display 000 003 002 YCS041 Not displ...

Page 35: ...y 000 015 003 YCS109 Not display 000 001 000 YCS110 Not display 000 003 001 YCS111 Not display 000 003 001 YCS112 Not display 000 003 001 YCS113 Not display 000 003 001 YCS114 Not display 000 255 000 Item No Item name Variable range Fixed value INPUT SIGNAL NTSC ASPECT FULL MULTI SINGLE VIDEO STATUS STANDARD COLOR TEMPERATURE LOW Item No Item name Variable range Initial setting value BR Not displa...

Page 36: ...OL PAT 0 3 0 CBA43 MTPH1 32768 32767 0 CBA44 MTPH2 32768 32767 0 CBA45 MTPV1 32768 32767 0 CBA46 MTPV2 32768 32767 0 CBA47 YSP 7 7 0 CBA48 BL1POSV 0 2047 0 CBA49 BL1POSH 0 4095 0 CBA50 BL2POSV 0 2047 0 CBA51 BL2POSH 0 4095 0 CBA52 XPOSV 0 2047 580 CBA53 XPOSH 0 4095 1012 CBA54 XLLENV 0 2047 276 CBA55 XLLENH 0 4095 450 CBA56 SQ1POSV 0 2047 30 CBA57 SQ1POSH 0 4095 1024 CBA58 SQ1VSIZE 0 255 128 CBA59...

Page 37: ...8 IPA029 Not display 000 03F 02B IPA030 Not display 000 00F 005 IPA031 Not display 000 007 001 IPA032 Not display 000 03F 010 Item No Item name Variable range Initial setting value IPA033 Not display 000 001 001 IPA034 Not display 000 03F 039 IPA035 Not display 000 001 001 IPA036 Not display 000 03F 00E IPA037 Not display 000 03F 02E IPA038 Not display 000 03F 01E IPA039 Not display 000 003 002 IP...

Page 38: ...001 DSB007 Not display Not display 011 DSB008 Not display Not display 001 DSB009 Not display Not display 010 DSB010 Not display Not display 001 DSB011 Not display Not display 001 DSB012 Not display Not display 008 DSB013 Not display Not display 012 DSB014 Not display Not display 025 DSB015 Not display Not display 001 DSB016 Not display Not display 001 DSB017 Not display Not display 001 DSB018 Not ...

Page 39: ...y 000 00F 005 DSC030 Not display 000 0FF 040 DSC031 Not display 000 00F 000 DSC032 Not display 000 0FF 0C0 DSC033 Not display 000 00F 000 DSC034 Not display 000 0FF 080 DSC035 Not display 000 00F 000 Item No Item name Variable range Initial setting value DSC036 Not display 000 0FF 040 DSC037 Not display 000 00F 005 DSC038 Not display 000 0FF 040 DSC039 Not display 000 00F 000 DSC040 Not display 00...

Page 40: ...52 Not display 000 001 000 Item No Item name Variable range Initial setting value HDM053 Not display 000 001 000 HDM054 Not display 000 001 000 HDM055 Not display 000 001 000 HDM056 Not display 000 001 000 HDM057 Not display 000 001 001 HDM058 Not display 000 001 000 HDM059 Not display 000 001 001 HDM060 Not display 000 001 000 HDM061 Not display 000 001 001 HDM062 Not display 000 001 001 HDM063 N...

Page 41: ...ay Not display 00B RHD060 Not display Not display 002 Item No Item name Variable range Initial setting value RHD061 Not display Not display 000 RHD062 Not display Not display 000 RHD063 Not display Not display 000 RHD064 Not display Not display 000 RHD065 Not display Not display 000 RHD066 Not display Not display 000 RHD067 Not display Not display 000 RHD068 Not display Not display 000 RHD069 Not ...

Page 42: ... RHD137 Not display Not display 000 RHD138 Not display Not display 000 RHD139 Not display Not display 000 RHD140 Not display Not display 000 RHD141 Not display Not display 000 RHD142 Not display Not display 000 RHD143 Not display Not display 000 RHD144 Not display Not display 000 RHD145 Not display Not display 000 RHD146 Not display Not display 000 RHD147 Not display Not display 000 RHD148 Not dis...

Page 43: ... GND 3 Check the high voltage DC 31 6kV 1 0kV 1 5kV Item Measuring instrument Test point Adjustment part Description H FREQUENCY adjustment Signal generator Remote control unit 1 PICTURE SOUND D15 H FREQ D18 DEF RST 1 Receive NTSC crosshatch signal 2 Select FULL mode with ASPECT key 3 Select 1 PICTURE SOUND from SERVICE MENU 4 Select D18 DEF RST and change the data 0 to 1 free run 5 While observin...

Page 44: ...difference in the focus in the top and the bottom on either side in the diagonal When the difference of the focus is big it removes a main lens and it puts a washer between the main lens and the coupler and adjusts it BEAM SPOT 5 Change dot pattern with INPUT key 6 Makes a red single color 7 Turn the R FOCUS VR clockwise from just focus point to set the dot diameter approx to 30mm 8 Turn the 4 pol...

Page 45: ... SOUND and change the data in the setting item F62 from 0 to 1 For details please refer to the adjustment of DEFLECTION As a result you can get the screen as shown in bellow figure Adjust the DEFLECTION circuit in order of the steps indicated by the downward arrows NOTE When every adjustment of the DEFLECTION circuit has completed start the adjustment of convergence PREPARATION DEFLECTION CONVERGE...

Page 46: ...ence operation with CH CH keys 4 Change the data 0 to 1 then it makes picture without convergence operation 5 Makes a green single color NOTE When making a single color while adjusting of one CRT put the cap on other lens 6 Select D03 H SIZE and shorten the level until and perpendicular amplitude of vibration with until the blanking in Left and Right and on either side can be seen 7 Select D14 H C...

Page 47: ...al generator Remote control unit 1 PICTURE SOUND D14 H CENTER F62 Without convergence operation 1 Receive NTSC circle pattern signal 2 Select FULL mode with ASPECT key 3 Select 1 PICTURE SOUND from SERVICE MENU 4 Select F62 Without convergence operation 5 Change the data 0 to 1 then it makes picture without convergence operation 6 Select D14 H CENTER 7 Adjust D14 to make D E as shown figure 8 Afte...

Page 48: ...ly adjusted If the horizontal is out of alignment readjust it Adjust H SIZE SIDE PIN reparably TRAPEZIUM adjustment Signal generator Remote control unit 1 PICTURE SOUND D07 EW TRAP F62 Without convergence operation 1 Receive NTSC crosshatch signal 2 Select FULL mode with ASPECT key 3 Select 1 PICTURE SOUND from SERVICE MENU 4 Select F62 Without convergence operation 5 Change the data 0 to 1 then i...

Page 49: ...Press MUTING key to memorize the set values Table1 CPA04 TPOV OFST 0 Item name Item No Initial setting value CPA05 FINEP 1245 CPA06 STARTLIN A 56 CPA07 STARTLIN B 1 CPA08 CAU H2 0 CPA09 COARS OFST 50 CPA10 V1OFSTA 7 CPA11 V1OFSTB 0 INPUT INDEX ASPECT FREEZE SWAP SELECT RETURN FAVORITE THEATER PRO NATURAL CINEMA VIDEO STATUS TIMER i LINK MENU SOUND LIGHT TV CATV VCR DVD MUTING MENU BACK GUIDE RM C1...

Page 50: ...o1 Clear the fine adjustment data 5 Select CCA item with INPUT key Then a green crosshatch pattern for adjustment will be displayed on the screen 6 Check and set data CCA01 to CCA12 are same value as table2 7 Press SELECT key to change the adjusting color to red and blue NOTE Press OK key to change the display colors Whenever OK key is pressed the menu will sequence in this order 2 colors adjustin...

Page 51: ...display colors to 3 colors from 2 colors adjusting color green and make sure that the convergence has been aligned with each other 12 Press MUTING key to memorize the set values 13 Perform an AUTO CONVERGENCE PRESET Fig 3 Fig 1 Fig 2 Item Measuring instrument Test point Adjustment part Description H 0H 1 ADJUSTMENT PROCEDURE OF LINE H 1 NOTE Adjust in consideration of a surrounding line moving H 2...

Page 52: ... replaced to new one it is also necessary to execute PRESET In this case perform RESET according to the steps 1 or 2 then execute PRESET again HOW TO EXECUTE PRESET When executing SUPER FOCUS with AUTO on CONVERGENCE of the USER MENU or SUPER FOCUS button on the FRONT CONTROL you can execute PRESET automatically when RESET is applied In this case a dimmed block will be displayed in the center of t...

Page 53: ...emorize the set value 12 Receive 480i component signal include 0 or 3 black 13 Select S03 14 Set S03 to 127 15 Select S16 16 Set S16 same as memorized NTSC value 17 Select STANDARD mode with VIDEO STATUS key 18 Select FULL mode with ASPECT key 19 The COLOR TEMP set at the LOW mode 20 Set 1080i component signal include 0 or 3 black 21 Select S03 22 Set S03 to 127 23 Select S16 24 Set S16 same as me...

Page 54: ...changed from 215 to 210 1 PICTURE SOUND S03 value was changed from 185 to 180 automatically WHITE BALANCE HIGH LIGHT adjustment Signal generator Remote control unit 1 PICTURE SOUND S10 DRIVE R S12 DRIVE B 3 WHITE BALANCE DRV R DRV B 1 Receive NTSC gray scale signal include 75 white 2 Select STANDARD mode with VIDEO STATUS key 3 Set the COLOR TEMP is LOW mode 4 Select 1 PICTER SOUND from SERVICE ME...

Page 55: ...t values 9 Select THEATER mode with VIDEO STATUS key 10 Repeat steps 4 to 8 above 11 Input 480i component black white signal from COMPONENT VIDEO terminal 12 Repeat steps 2 to 9 above 13 Receive 1080i component black white signal from COMPONENT VIDEO terminal 14 Repeat steps 2 to 9 above Table 2 SUB CONTRAST adjustment 2 Signal generator Oscilloscope Remote control unit TP G G CRT SOCKET PWB 1 PIC...

Page 56: ...olor bar is not clearly with the initial setting value make fine adjustment until you get the clearly color bar 10 Press MUTING key to memorize the set values 11 Select THEATER mode with VIDEO STATUS key 12 Repeat steps 3 to 10 above 13 Input 480i component color bar signal from COMPONENT VIDEO terminal 14 Repeat steps 2 to 12 above 15 Input 480p component color bar signal from COMPONENT VIDEO ter...

Page 57: ...cope to TP B 13 Adjust S07 B Y to be setting value C V Refer to the table 14 Press MUTING key to memorize the set values 15 Select THEATER mode with VIDEO STATUS key 16 Adjust S07 to be setting value D V Refer to the table 17 Press MUTING key to memorize the set values 18 Confirm that LOW LIGHT is not different after adjusting If it is green or magenta to adjust LOW LIGHT again If adjust again to ...

Page 58: ...SEP A03 HI SEP 1 Input stereo L signal 300Hz from the TV audio multiplex signal generator to the antenna terminal 2 Connect an oscilloscope to L OUTPUT pin of the AUDIO OUT and display one cycle portion of the 300Hz signal 3 Change the connection of the oscilloscope to R OUTPUT pin of the AUDIO OUT and enlarge the voltage axis 4 Select A02 LOW SEP 5 Set the initial setting value of A02 6 Adjust A0...

Page 59: ...ed on the record at the end The failure record for each check item is counted to the number of 9 at the maximum When more than 9 failures are stored on the record the counter remains stopped at 9 SYNC is neither counted nor stored in memory Because of the timing of Vcc start up and shut down of the IC connecting to the I2 C bus during which the power is turned on and off the operation may be inter...

Page 60: ...T MODULE PWB When entering the self check mode OK is shown While running the mode with picture signal if the synchronized signal is disappeared NG is shown MEM Memory EEP ROM ACK is returned when I2 C traffic is carried out IC1703 MEMORY MAIN PWB The state is monitored every time when I2 C traffic is carried out Then the state is counted as a failure if ACK is not returned AVSW AV switch Ditto IC1...

Page 61: ... No YA173 AV MULTIMEDIA COMPANY VIDEO DISPLAY CATEGORY 12 3 chome Moriya cho kanagawa ku Yokohama kanagawa prefecture 221 8528 Japan Victor Company of Japan Limited VPT Printed in Japan ...

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