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FILE NO.

REFERENCE No.SM5310561

L8MZ5/XE2,UK2,AU2

NOTE: 1. Parts order must contain model number, part number, and description.

2. Substitute parts may be supplied as the service parts.
3. N.S.P. : Not available as service parts.

Design and specifications are subject to change without notice.

SERVICE MANUAL

Colour Video Monitor

CONTENTS

SPECIFICATIONS .................................................................... 2
1. OPERATING INSTRUCTIONS ............................................. 3
2. DISASSEMBLY ..................................................................... 5
3. SERVICE ADJUSTMENTS ................................................... 6
4. PARTS LIST ......................................................................... 9
CIRCUIT DIAGRAMS & PRINTED WIRING BOARDS ........... C1

(Product Code : 114 952 19)
(Europe)

VMC-8621PA

(Product Code : 114 952 20)
(U.K.)

(Product Code : 114 952 21)
(Australia)

The components designated by a symbol (      ) in this schematic diagram designates components whose value are of

special significance to product safety. Should any component designated by a symbol need to be replaced, use only the

part designated in the Parts List. Do not deviate from the resistance, wattage, and voltage ratings shown.

PRODUCT SAFETY NOTICE

Содержание VMC-8621PA

Страница 1: ...TRUCTIONS 3 2 DISASSEMBLY 5 3 SERVICE ADJUSTMENTS 6 4 PARTS LIST 9 CIRCUIT DIAGRAMS PRINTED WIRING BOARDS C1 Product Code 114 952 19 Europe VMC 8621PA Product Code 114 952 20 U K Product Code 114 952 21 Australia The components designated by a symbol in this schematic diagram designates components whose value are of special significance to product safety Should any component designated by a symbol...

Страница 2: ...ion possible VIDEO signal VIDEO A B Composite sync signal 1 0 Vp p 75 Ω BNC connector 2 automatic termination setting AUDIO signal AUDIO A B 6dBs 400 mVrms RCA pin 3 bridge connection possible Picture adjustment Adjustable COLOR TINT NTSC only BRIGHTNESS CONTRAST SHARPNESS Sound adjustment Adjustable soeaker volume YES 1 W x 1 impedance of 8 Ω 100 to 240 V AC 50 60 Hz 95 Watts 10 C to 45 C storage...

Страница 3: ...previous screen 6 Underscan overscan select button SCAN The initial setting is for the normal screen overscan If the SCAN button is pressed the screen will become smaller underscan than the normal screen Change this setting in cases such as when screen display characters are miss ing If the SCAN button is pressed once more the normal screen is display again 7 Monitor A selector button A When this ...

Страница 4: ...ctor button at the front of the monitor is pressed the audio and video signals from the unit which is connected to these terminals can be moni tored 4 Rear Y C terminals AUDIO VIDEO Y C terminals When the monitor Y C selector button at the front of the monitor is pressed the audio and video signals from the unit which is connected to these terminals can be moni tored Note If thre is no signal bein...

Страница 5: ... 5 2 DISASSEMBLY 2 1 CABINET 2 2 BOARD LOCATION Fig 5 Fig 6 VIDEO BOARD MAIN BOARD FUNCTION BOARD SIGNAL BOARD ...

Страница 6: ...clear Adjusting VR401 horizontal phase to make right and left synmmertrize Adjusting VR302 vertical linear to make up and down inear indentical Adjusting VR303 vertical center to make screen up and down synmmertrize Adjusting VR301 vertical size to make screen V SIZE to level widw 3 4 VR503 FBT FOCUS VR VR401 VR302 VR303 VR301 BRIGHT VR and CONTRAST VR TO MAX BRIGHT VR CONTRAST VR and SHARPNESS VR...

Страница 7: ...R501 make luminance with video signal to 38 42 FL Adjust VR804 make X value is 0 313 0 015 Adjust VR802 make Y value is 0 329 0 015 Adjust FBT screen VR make luminance without video signal is 2 4 FL Adjust VR501 make luminance is 52 3 FL Adjust VR502 make luminance is 110 10 FL Then make sure Full White luminance whether it is 52 3 FL ADJUSTMENT ITEM TIMING PATTERN SETTING VR LOCATION ADJUSTMENT P...

Страница 8: ...1 VR503 VR303 IC202 1 VR301 VR302 T902 VR502 VR804 VR805 VR801 VR802 VR803 Q804 Q802 Q806 F901 V LIN V SIZE V CENTER ABL LUMI X RAY H PHASE R GAIN R BAIS B BAIS G BAIS B GAIN D910 ZD501 IC101 1 Fig 7 Fig 8 MAIN BOARD Parts side VIDEO BOARD Parts side ...

Страница 9: ... 645 055 0386 VIDEO BOARD CM 21DUA 22 645 052 5469 METAL TOP COVER CM 21DXA 23 645 034 3919 HANDLE COVER CM 14 PA 765A 24 645 034 3582 PH W W SCR 4 8MM 25 645 034 3841 ID LABEL 83 51MM N S P 26 645 034 3612 SCREW WASHER 3 6MM 27 645 066 3383 MAIN BOARD CM 21DUA NEW 28 645 046 0722 PCB GUIDE RAIL MM 9M 29 645 034 4299 PCB GUIDE RAIL MM 12A 30 645 052 5452 BASE CM 21DUA 31 645 034 3582 PH W W SCR 4 ...

Страница 10: ...ARIABLE RESISTORS VR801 645 046 4805 POT VR METEL 5KOHM 6DIA S TYPE VR802 645 046 4768 POT VR METAL 300OHM6DIA S TYPE VR803 645 046 4805 POT VR METEL 5KOHM 6DIA S TYPE VR804 645 046 4768 POT VR METAL 300OHM6DIA S TYPE VR805 645 046 4805 POT VR METEL 5KOHM 6DIA S TYPE MISCELLANEOUS SK801 645 040 9240 CRT SOCKET ISHM35S SGP801 645 038 5520 SPARK GAP 250V 20 S TYPE SGP802 645 038 5520 SPARK GAP 250V ...

Страница 11: ... 105 DEGREE C C929 645 034 2837 CC CAP 104PF 50V Y5V C930 645 046 3617 EC CAP 1000UF 16V 105 DEGREE C C931 645 046 3761 EC CAP 470UF 25V 105 DEGREE C C932 645 034 2837 CC CAP 104PF 50V Y5V C933 645 055 0164 EC CAP 2200UF 10V 105C 10DIA C936 645 055 0232 EC CAP 47UF 250V105C13DIA C937 645 055 0263 MEMB CAP 0056UF 100V 5 DIODES D101 645 034 3308 DIODE 1N4148 D102 645 034 3308 DIODE 1N4148 D103 645 0...

Страница 12: ...40 645 046 2177 CF RES 100OHM 1 6W 5 R241 645 046 2177 CF RES 100OHM 1 6W 5 R242 645 034 1854 CF RES 1KOHM 1 6W 5 R243 645 034 1885 CF RES 100KOHM 1 6W 5 R248 645 046 2894 CF RES 560OHM 1 6W 5 R249 645 046 2900 CF RES 5 6KOHM 1 6W 5 R252 645 046 2306 CF RES 150OHM 1 6W 5 R253 645 034 1885 CF RES 100KOHM 1 6W 5 R254 645 046 2191 CF RES 10KOHM 1 6W 5 R255 645 046 2306 CF RES 150OHM 1 6W 5 R261 645 0...

Страница 13: ...9 TACT SWITCH TSP620 1150 OR 645 046 5093 LIGHT TOUCH SWITCH EVQ21305R S104 645 046 5109 TACT SWITCH TSP620 1150 OR 645 046 5093 LIGHT TOUCH SWITCH EVQ21305R S105 645 046 5109 TACT SWITCH TSP620 1150 OR 645 046 5093 LIGHT TOUCH SWITCH EVQ21305R S106 645 046 5109 TACT SWITCH TSP620 1150 OR 645 046 5093 LIGHT TOUCH SWITCH EVQ21305R S107 645 046 5109 TACT SWITCH TSP620 1150 S107 645 046 5093 LIGHT TO...

Страница 14: ...6W 5 R257 645 046 2757 CF RES 47OHM 1 6W 5 R258 645 034 1854 CF RES 1KOHM 1 6W 5 R259 645 034 1854 CF RES 1KOHM 1 6W 5 R260 645 034 1854 CF RES 1KOHM 1 6W 5 R701 645 046 3044 CF RES 8 2KOHM 1 6W 5 R702 645 046 2467 CF RES 220OHM 1 6W 5 R703 645 046 3044 CF RES 8 2KOHM 1 6W 5 R704 645 046 2467 CF RES 220OHM 1 6W 5 R705 645 046 3044 CF RES 8 2KOHM 1 6W 5 R706 645 046 2467 CF RES 220OHM 1 6W 5 R708 6...

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