JVC InteriArt HV-28P37SJE Service Manual Download Page 18 | Manualshive

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1-18 (No.YA010)

4.5

TOOL OF SERVICE MENU OPERATION

Operate the SERVICE MENU with the REMOTE CONTROL UNIT.

4.5.1

SERVICE MENU ITEMS

With the SERVICE MENU, various adjustment can be made, and they are broadly classified in the following items of settings.

4.5.2

BASIC OPERATION IN SERVICE MENU

4.5.2.1

HOW TO ENTER THE SERVICE MENU

Before operating SERVICE MENU, confirm that the setting of
VCR/TV/DVD switch of the REMOTE CONTROL UNIT is at the
"TV" side. If this switch have not been properly set, you cannot
enter the SERVICE MENU.

Press the [INFORMATION] key and [MUTING] key of the
REMOTE CONTROL UNIT simultaneously. Then SERVICE
MENU screen will be displayed as shown figure.

4.5.3

SUB MENU SCREEN SELECTION

Press one of the CHANNEL number key with the remote control
unit, and select the SUB MENU SCREEN from SERVICE MENU.

4.5.4

MEMORIZE THE ADJUSTMENT DATA

When adjustment is completed, press the [MENU] key to
memorize the adjustment value. If not to do it, adjustment data is
not memorized to the memory IC. And if exit the adjustment
mode before memorize the data, the adjustment value which you
change is canceled.

4.5.5

RELEASE OF SERVICE MENU

When adjustment is completed, press the [INFORMATION] key.
Then return to the SERVICE MENU screen.
Again press the [INFORMATION] key, you can return to the
normal screen.

Sub Menu item

Description

1.IF

This mode adjusts the IF circuit.

2.V/C

This mode adjusts the VIDEO circuit

3.AUDIO

This mode adjusts the AUDIO circuit.

[It is no requirement for adjustment.]

4.DEF

This mode adjusts the DEFLECTION circuit.

5.VSM PRESET

This mode sets the VSM (Video Status Memory) data.

6.STATUS

This mode shows the I

2

C memory data software version and information.

[It is no requirement for adjustment.]

7.3DNR

This mode adjusts the 3D NR (three-Dimension Noise Reduction) circuit.

[It is no requirement for adjustment.]

8.IP

This mode adjusts the DIST circuit.

[It is no requirement for adjustment.]

9.SHIPPING

This mode initialize the data for factory shipment.
Not to select this mode during adjusting.

[It is no requirement for adjustment.]

0.BUS FREE

This mode stops the all I

2

C bus communication.

Not to select this mode during adjusting.

[It is no requirement for adjustment.]

SERVICE MENU

1. IF
3. AUDIO
5. VSM PRESET
7. 3DNR
9. SHIPPING(OFF)

2. V/C
4. DEF
6. STATUS
8. IP
0. BUS FREE

1-9 : SELECT i : EXIT

INFORMATION

SERVICE MENU

Enter

Exit SERVICE MENU

MUTING

VCR/TV/DVD

SWITCH

MENU

Memorize the

adjustment data

FUNCTION

UP / DOWN

8

1

2

3

4

7

5

6

9

0

AV

ZOOM

MENU

BACK

3D

TV

OK

Select the setting item

FUNCTION

RIGHT/LEFT

Adjust the value

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Summary of Contents for InteriArt HV-28P37SJE

Page 1: ...PANY OF JAPAN LIMITED No YA010 2003 12 COLOUR TELEVISION YA010 2003 12 HV 28P37SUE HV 28P37SJE TABLE OF CONTENTS 1 PRECAUTION 1 3 2 SPECIFIC SERVICE INSTRUCTIONS 1 5 3 DISASSEMBLY 1 10 4 ADJUSTMENT 1 15 5 TROUBLESHOOTING 1 42 BASIC CHASSIS MM ...

Page 2: ...ible size 66cm Measured diagonally H 58 3cm V 33 0cm High Voltage 31 0kV 0 2kV 0 2kV at zero beam current FULL mode Speaker 13cm 6 5cm oval type 2 Audio Power Output 10W 10W External terminal EXT 1 Input Output 21 pin Euro connector SCART socket Video input Audio L R inputs and RGB inputs are available TV broadcast outputs Video and Audio L R are available EXT 2 Input Output 21 pin Euro connector ...

Page 3: ...replacements or alternatives approved by the manufacturer of the complete product 7 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 8 When service ...

Page 4: ...aracteristics are identified in the Parts List of Service Manual Electrical components having such features are identified by shading on the schematics and by on the Parts List in the Service Manual The use of a substitute replacement which does not have the same safety characteristics as the recommended replacement part shown in the Parts List of Service Manual may cause shock fire or other hazar...

Page 5: ...Used SCL2 TV LINK Not used 11 G input 700mV B W 75Ω Used Used Not used 12 SDA Not used Used SDA2 Not used 13 GND R Used Used Used 14 GND YS Used Not used Not used 15 R C input R 700mV B W 75Ω C 300mV P P 75Ω Used R Used C2 R Used C3 16 Ys input FAST SW Low 0V 0 4V High 1V 3V 75Ω Used Used Not used 17 GND VIDEO output Used Used Used 18 GND VIDEO input Used Used Used 19 VIDEO output 1V P P Negative ...

Page 6: ...layed on an appropriate device such as a CRT or PDP will provide unprecedented picture quality and the highest levels of resolution 7 Global compatibility can be enjoyed with a maximum 1500i 60Hz display for NTSC DVD or VCR playback on PAL as well as other versatile signal sources including PAL NTSC DVD or D VHS MULTI SCREEN FUNCTION POP Picture Out Picture Back programs can be seen at once Three ...

Page 7: ... EXT 3 S AUDIO OUT L Pr Pb R L Y R SIDE CONTROL JACK AV TERMINAL BOARD R L S P E X T 5 4 5 6 7 8 9 10 11 12 13 EXT 1 EXT 4 EXT 2 S EXT 3 S AUDIO OUT L Pr Pb R L Y R Aeriel terminal EXT 4 terminal AUDIO OUT terminal EXT 1 terminal EXT 2 terminal EXT 3 terminal 8 9 10 11 12 13 7 4 5 6 Headphone jack P buttons buttons Volume button EXT 5 terminal ...

Page 8: ... 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 Muting key Number key Information key Zoom key 3D Sound key TV key Function UP DOWN RIGHT LEFT keys Text key Programme keys VCR DVD Text control key Standby key VCR TV DVD Switch AV key Colour key Multi screen key Freeze Swap key MENU key OK key BACK key Volume keys VCR TV DVD switch ...

Page 9: ...61 0H DEF CONTROL IC0212 0H DAC1 IC1301 0Z RGB PROCESSOR IC3001 0Z MAIN CHROMA DEMODULATOR IC1721 10 IP LATCH IC1701 10 MAIN DAC IC801 0S SUB CHROMA DEMODULATOR IC802 0S SUB DIGITAL COMB FILTER MAIN PWB MAIN PWB DIST PWB TU1001 10 TUNER IC1251 10 COMPONENT VIDEO SW IC1201 10 SYNC SEP IC1101 10 MULTI SOUND PROCESSOR IC101 0S AV SW IC1001 0Z DIST PROCESSOR IC001 0M MAIN MICRO COMPUTER ...

Page 10: ...ightly raise the MAIN CHASSIS and release two claws at the bottom of both sides of the MAIN CHASSIS 2 Then withdraw the MAIN CHASSIS backward from the FRONT CABINET If necessary detach the wire clamp connectors etc 3 1 6 REMOVING THE MAIN SPEAKER Remove the REAR COVER 1 Remove 2 screws H and detach the MAIN SPEAKER HOLDER as shown in Fig 3 When removing 2 screws H of the MAIN SPEAKER HOLDER the lo...

Page 11: ...PEAKER FRONT CONTROL PWB POWER DEF PWB DEF OSC PWB EHT PWB LINE FILTER PWB MI COM PWB LF BASE MAIN PWB DIST PWB AV SW PWB CLAW CLAW HVT HOLDER MAIN CHASSIS CONTROL BASE AV TERMINAL BOARD A J M Fig 1 B POWER CORD H L K MAIN SPEAKER HOLDER CRT SOCKET PWB D ...

Page 12: ...ot enter the SERVICE MENU 2 Press the INFORMATION key and MUTING key on the REMOTE CONTROL UNIT simultaneously 3 The SERVICE MENU screen on Fig 1 will be displayed 4 While the SERVICE MENU is displayed again press the INFORMATION key and MUTING key simultaneously Then display the SYSTEM CONSTANAT SET screen as shown in Fig 2 5 Refer to the SETTING VALUE OF SYSTEM CONSTANT SET and check the setting...

Page 13: ...O others Blank MOVIE THEATER AUTO DECORDER EXT 2 OFF Colour Digipure ON EXT SETTING COLOR SYSTEM Depend on preset channel S IN EXT 2 4 3 AUTO ASPECT PANORAMIC ID LIST Blank SOUND SETTING DUBBING EXT 2 BASS Centre TREBLE Centre BALANCE Centre HEADPHONE VOLUME 10 3D CINEMA SOUND ON SURROUND MID BASS BOOST MID Service menu Sub menu item Description 1 IF 1 VCO 2 ATT 2 V C 1 CUT_OF_R 15 RY_ANGLE 3 AUDI...

Page 14: ...e 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 al ternately melt the solder at each lead Shift and remove the chip part NOTE After removing the part remove remaining solder from the pat tern 2 How to install Chip parts Resistors capacitors etc 1 Apply solder to the pattern as i...

Page 15: ...ustment items of this service adjustment 7 Preparation for adjustment Unless otherwise specified in the adjustment items preset the following functions with the REMOTE CONTROL UNIT 4 2 MESURING INSTRUMENT AND FIXTURES 1 DC voltmeter or digital voltmeter 2 HV voltmeter 3 Oscilloscope 4 Signal generator Pattern generator PAL SECAM NTSC 5 Remote control unit 4 3 ADJUSTMENT ITEM B1 POWER SUPPLY check ...

Page 16: ...KER SR SL RT TO SIDE CONTROL PWB TO SIDE CONTROL PWB TO DEG COIL TO FRONT CONTROL PWB F C B CN016 CN016 CN007 CN006 CN001 CN002 CN003 CN008 CN009 TO AV SW PWB TO MAIN PWB TOP TOP MAIN PWB FRONT F J001 J004 J005 J006 J002 J003 CN007 CN006 J004 HEAD PHONE UP DOWN MENU MI COM PWB DIST PWB TUNER AV SW PWB HV POWER DEF PWB A P J CN010 DEF OSC PWB CN001 CN002 CN003 ...

Page 17: ...VM R3225 Lead IC3202 9Pin side S1 A TO POWER DEF PWB TO IP PWB TP E TP 47R A E J X P J DEG CN011 CN010 DEF OSC PWB EHT PWB FBT TO LINE FILTER PWB TO LINE FILTER PWB R2533 X RAY ADJ EHT ADJ R2528 TO CRT SOCKET PWB TO DEG COIL TO DEF YOKE CN011 CN001 CN002 CN003 C B CN016 CN007 CN001 CN002 CN003 CN008 CN009 MAIN PWB MI COM PWB DIST PWB AV SW PWB 5 1 FOCUS2 FOCUS1 SCREEN R3224 Lead IC3201 9Pin side T...

Page 18: ...ted press the INFORMATION key Then return to the SERVICE MENU screen Again press the INFORMATION key you can return to the normal screen Sub Menu item Description 1 IF This mode adjusts the IF circuit 2 V C This mode adjusts the VIDEO circuit 3 AUDIO This mode adjusts the AUDIO circuit It is no requirement for adjustment 4 DEF This mode adjusts the DEFLECTION circuit 5 VSM PRESET This mode sets th...

Page 19: ...e FULL FULL Display only FULL mode Adjustment in other zoom modes are not required Input signal 900i 1125i 1350i 602p 900i 1125i 1350i 602p V C N3 1 CUT_OF_R 130 STORE i EXIT MENU Setting item Setting value Colour system DEF FULL 1125I 1 FREE RUN 0 STORE i EXIT MENU 93 Setting item Zoom mode Setting value Input signal VSM mode BRIGHT STD SOFT COOL NORMAL WARM BRIGHT STANDARD SOFT COOL NORMAL WARM ...

Page 20: ...adjust the value 3 Memorize Press the MENU key to memorize the adjustment value 4 Exit Press the INFORMATION key twice to exit to the service menu 2 V C 4 DEF 5 VSM PRESET 4 5 7 3 3 AUDIO 6 STATUS 7 3DNR 8 IP 9 SHIPPING and 0 BUS FREE It is no requirement for adjustment Do not change the values in these sub menu screen 1 2 SELECT i EXIT IF SERVICE MENU 1 VCO 2 ATT ON OFF i EXIT VCO CW MHz MAIN TOO...

Page 21: ...ROR LIMIT 0100 ERROR LIMIT D7FF C_AD_BITS 00000000 STORE i EXIT MENU V C N3 1 CUT_OF_R 130 STORE i EXIT MENU SHIPPING OFF SHIPPING ON IF SERVICE MENU 1 VCO 2 ATT ON OFF 1 2 SELECT i EXIT STORE i EXIT MENU STATUS 1 SOFT STORE i EXIT MENU 3DNR 3DYC 1 YNR LIM 0000 STORE i EXIT MENU IP 900i 1 ASLGAIN 0000 I2C BUS FREE 1 IF SERVICE MENU 6 STATUS 7 3DNR 8 IP 9 SHIPPING 0 BUS FREE 2 V C 3 AUDIO 4 DEF 5 V...

Page 22: ...SECAM NTSC 3 58 NTSC 4 43 625i 525i 625p 525p 1125i 1125i 1 CUT_OF R 000 255 130 130 0 0 2 CUT_OF G 000 255 130 130 0 0 3 CUT_OF B 000 255 130 130 0 0 4 DRIVE_R 000 255 64 64 0 0 5 DRIVE_G 000 255 64 64 0 0 6 DRIVE_B 000 255 64 64 0 0 7 BRIGHT 000 255 130 130 0 0 8 CONT 000 127 52 52 0 0 9 COLOR 000 127 80 55 0 0 63 0 0 0 0 0 0 0 10 HUE 000 127 0 0 0 0 63 0 68 68 0 0 0 0 11 TWN_CNT 000 015 9 0 0 0...

Page 23: ...H 00H 00H 00H 00H 11 MB HP 0000H 001EH 00H 00H 08H 00H 00H 12 MB LP 0000H 001EH 00H 00H 14H 12H 10H 13 MB LIMIT 00E0H 0000H 00H 00H 00H F6H F1H 14 SUBW LEVEL 0080H 000CH 00H 00H 00H 00H 00H 15 SUBW FREQ 0000H 0028H 00H 00H 1CH 00H 00H 16 SUBW CHAR 0000H 0003H 00H 00H 01H 00H 00H 17 SUBW HP 0000H 0002H 00H 00H 02H 00H 00H 18 VOL CLP M 0000H 0003H 03H 03H 00H 00H 00H Setting item Variable range Init...

Page 24: ...0 00 02 00 00 00 02 00 00 00 20 AC S F SET 0000 0003 00 00 02 00 00 00 02 00 00 00 21 AY M E SET 0000 0003 02 02 03 02 02 02 03 02 02 02 22 AY M F SET 0000 0003 02 02 03 02 02 02 03 02 02 02 23 AY S E SET 0000 0003 00 00 01 00 00 00 01 00 00 00 24 AY S F SET 0000 0003 00 00 01 00 00 00 01 00 00 00 25 BC M SLP 0000 0003 03 03 03 03 03 03 03 03 03 03 26 BC S SLP 0000 0003 03 03 02 03 03 03 02 03 03 ...

Page 25: ...0 00 00 00 00 00 00 00 00 55 YDCLOFF 0000 0001 01 01 00 01 01 01 00 01 01 01 56 YDNRW 0000 0001 00 00 00 00 00 00 00 00 00 00 57 CDNRW 0000 0001 00 00 01 00 00 00 01 00 00 00 58 YDCMP 0000 000F 08 08 00 08 08 08 00 08 08 08 59 HDAMP1 0000 0007 03 00 01 60 HDGAIN1 0000 001F 08 13 16 61 HDAMP2 0000 0007 04 03 03 62 HDGAIN2 0000 001F 06 07 28 63 HDAMP3 0000 0007 05 04 04 64 HDGAIN3 0000 001F 03 03 12...

Page 26: ... 85 HBLK W 0000 000F 00 86 FHST S 0000 000F 00 87 FVST S 0000 000F 00 88 EXTCLP 0000 000F 00 89 HGCON12 0000 000F 09 03 12 90 HGCON21 0000 000F 10 14 14 Setting item Variable range Initial setting value RF External Composite S External Component PAL SECAM NTSC 3 58 NTSC 4 43 PAL SECAM NTSC 3 58 NTSC 4 43 625i 525i ...

Page 27: ... ASYLCTRLON 0 1 1 1 1 1 1 1 1 1 1 14 ASYHCONTROL 0 63 63 63 63 63 63 63 63 63 63 15 ASYHCTRLON 0 1 1 1 1 1 1 1 1 1 1 16 ASCCONTROL 0 63 7 7 16 16 16 16 23 32 16 17 ASENHANCEON 0 1 18 ASPMBALANCE 0 63 1 1 6 6 6 6 6 18 6 19 ASPMBLNCEON 0 1 1 1 1 1 1 1 1 1 1 20 ASLIMIT 0 1 51 51 51 51 51 51 32 16 51 21 ASLIMITON 0 1 1 1 1 1 1 1 1 1 1 22 ASCORINGON 0 63 1 1 1 1 1 1 1 1 1 23 APBGAIN 0 63 48 26 26 26 26...

Page 28: ...5 32 32 32 13 ASYLCTRLON 0 1 1 1 1 1 1 1 1 1 1 14 ASYHCONTROL 0 63 63 63 63 63 63 63 63 63 63 15 ASYHCTRLON 0 1 1 1 1 1 1 1 1 1 1 16 ASCCONTROL 0 63 7 7 16 16 7 7 23 7 7 17 ASENHANCEON 0 1 18 ASPMBALANCE 0 63 1 1 6 6 6 6 6 18 6 19 ASPMBLNCEON 0 1 1 1 1 1 1 1 1 1 1 20 ASLIMIT 0 1 51 51 51 51 51 51 32 16 51 21 ASLIMITON 0 1 1 1 1 1 1 1 1 1 1 22 ASCORINGON 0 63 1 1 1 1 1 1 1 1 1 23 APBGAIN 0 63 48 26...

Page 29: ...NTROL 0 63 32 32 32 35 35 35 35 32 48 BSYLCTRLON 0 1 1 1 1 1 1 1 1 1 49 BSYHCONTROL 0 63 63 63 63 63 63 63 63 63 50 BSYHCTRLON 0 1 1 1 1 1 1 1 1 1 51 BSCCONTROL 0 63 7 7 7 16 16 7 7 7 52 BSENHANCEON 0 1 1 1 1 1 1 1 1 1 53 BSPMBALANCE 0 63 1 1 1 6 6 6 6 6 54 BSPMBLNCEON 0 1 1 1 1 1 1 1 1 1 55 BSLIMIT 0 1 51 51 51 51 51 51 51 51 56 BSLIMITON 0 1 1 1 1 1 1 1 1 1 57 BSCORINGON 0 1 1 1 1 1 1 1 1 1 58 B...

Page 30: ...0 63 32 32 35 35 35 35 32 35 48 BSYLCTRLON 0 1 1 1 1 1 1 1 1 1 49 BSYHCONTROL 0 63 63 63 63 63 63 63 63 63 50 BSYHCTRLON 0 1 1 1 1 1 1 1 1 1 51 BSCCONTROL 0 63 7 7 16 16 7 7 7 7 52 BSENHANCEON 0 1 1 1 1 1 1 1 1 1 53 BSPMBALANCE 0 63 1 1 6 6 6 6 6 10 54 BSPMBLNCEON 0 1 1 1 1 1 1 1 1 1 55 BSLIMIT 0 1 51 51 51 51 51 51 51 51 56 BSLIMITON 0 1 1 1 1 1 1 1 1 1 57 BSCORINGON 0 1 1 1 1 1 1 1 1 1 58 BPBGAI...

Page 31: ...rt Description HIGH VOLTAGE Signal generator HV voltmeter Remote control unit CRT anode 2 V C 1 CUT_OF_R EHT ADJ VR R2528 EHT PWB SCREEN VR In FBT 1 Receive the black and white signal color off 2 Connect the HV voltmeter to CRT anode and chassis GND 3 Select 2 V C 4 Select 1 CUT_OF_R 5 Show one horizontal line with the YELLOW FREEZE SWAP key 6 Turn the SCREEN VR counterclockwise to display whole b...

Page 32: ...on FOCUS Signal generator FOCUS1 VR FOCUS2 VR In FBT 1 Receive the crosshatch signal 2 Select the ZOOM to FULL 3 While watching to the screen adjust the FOCUS2 VR to the horizontal lines will be clear and in fine detail at center of screen 4 Then adjust the FOCUS1 VR to the vertical lines will be clear and in fine detail at the circumference part of screen 5 Make sure that the picture is in focus ...

Page 33: ...tial setting value of VSM PRESET as shown in the table given below 5 Press the MENU key to memorize the setting value 6 Select 2 BRIGHT to 8 WDR B in turn Check and set the values 7 Respectively select the STANDARD to WARM and make similar adjustment as same step as avobe NOTE Refer to OPERATING INSTRUCTIONS to switch the PICTURE MODE BRIGHT CONT BRIGHT SHARP COLOUR TINT WDR R WDR G WDR B STANDARD...

Page 34: ...single horizontal line that is dsiplayed become white with the 1 CUT_OF_R 2 CUT_OF_G or 3 CUT_OF_B 8 Press the MENU key to memorize the adjustment value 9 Turn the SCREEN VR until the single horizontal line is displayed faitly 10 Press the YELLOW FREEZE SWAP key to cancel the single horizontal line mode 11 Confirm that whether the color ingredient of R G or B is visible to the black component whic...

Page 35: ...ot the best with the initial setting value make fine adjustment of the 7 BRIGHT until you get the optimum brightness 5 Press the MENU key to memorize the adjustment values SUB CONTRAST Remote control unit 2 V C 8 CONT 1 Receive the broadcast 2 Select 2 V C 3 Set the initial setting value of the 8 CONT 4 If the contrast is not the best with the initial setting value make fine adjustment of the 8 CO...

Page 36: ...l 75 white 2 Select 2 V C 3 Set the initial setting value of 9 COLOUR 4 Connect the oscilloscope between TP 47R and TP E at the CRT SOCKET PWB 5 Adjust 9 COLOUR and bring the value of A in the illustration to the values as shown in the table Voltage difference between white W and red R 6 Press the MENU key and memorize the adjustment value SECAM COLOUR 1 Receive SECAM colour bar signal 75 white 2 ...

Page 37: ... unit TP 47R TP E CRT SOCKET PWB 2 V C 10 TINT Method of adjustment using measuring instruments NTSC 3 58 TINT 1 Input NTSC3 58MHz full field colour bar signal 75 white 2 Select 2 V C 3 Set the initial setting value of 10 TINT 4 Connect the oscilloscope between TP 47R and TP E at the CRT SOCKET PWB 5 Adjust 10 TINT and bring the value of B in the illustration to the values as shown in the table Vo...

Page 38: ...0Hz has not been optimized adjust each zoom mode again in NTSC 60Hz respectively In this case only NTSC 60Hz each zoom mode is corrected 3 Deflection adjustment should surely carry out by setting zoom mode to FULL Since a deflection setup of those other than FULL mode is carried out by SERVICE MENU 8 IP setting adjustment in zoom modes other than FULL mode is unnecessary Item Measuring instrument ...

Page 39: ... Adjust 5 H SIZE to become the horizontal screen size is in the table given left 5 Press the MENU key to memorize the adjustment value SIDE PIN Signal generator Remote control unit 4 DEF 7 EW PIN 1 Receive the circle pattern signal 2 Select 4 DEF 3 Set the initial setting value of 7 EW PIN 4 Adjust 7 EW PIN so that second vertical lines at the right and left edges of the screen become straight Als...

Page 40: ... value of 9 COR LOW 6 Adjust 9 COR LOW to become the vertical line at the lower corner straight 7 Press the MENU key to memorize the adjustment value V LINEARITY Signal generator Remote control unit 4 DEF 10 V S COR 11 V LIN Should not adjustment except for in case of under the condition that remarkably bad about vertical linearity 1 Receive the crosshatch signal 2 Select 4 DEF 3 Set the initial s...

Page 41: ...Select 2 V C 4 Set the initial setting value of 12 TWN_COL 5 Connect the oscilloscope between TP 47R and TP E at the CRT SOCKET PWB 6 Adjust 12 TWN_COL so that the voltage difference between white and red become 0V 7 Press the MENU key to memorize the adjustment value NTSC COLOUR 1 Set the screen to the multi twin mode 2 Input NTSC3 58 full field colour bar signal 75 white from the EXT terminal to...

Page 42: ...1 42 No YA010 SECTION 5 TROUBLESHOOTING This service manual does not describe TROUBLESHOOTING ...

Page 43: ... No YA010 AV MULTIMEDIA COMPANY VIDEO DISPLAY CATEGORY 12 3 chome Moriya cho kanagawa ku Yokohama kanagawa prefecture 221 8528 Japan VICTOR COMPANY OF JAPAN LIMITED WPC Printed in Japan ...

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