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C

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G

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C6

1

2

3

4

5

6

7

8

9

10

11

P201

1

2

3

4

5

6

7

8

IC701

BA7612N

1

2

3

4

5

6

7

8

IC202

BA7612N

1

2

3

4

5

6

7

8

IC201

BA7612N

Q205 2SC1815

R206 1K

R258 1K

R207 1K

C261 0.033uF 100V MEMB

R205 2.2K

Q201

2SA1015

R204 680K

R208 220

C205 100uF 16V

R203 220

R202

220

D201 1N4148

D202 1N4148

C201 10uF

C202 10uF

25V

25V

R201 75

Q206 2SC1815

R219 1K

R260 1K

R220 1K

C263 0.033uF 100V MEMB

R218 2.2K

Q203

2SA1015

R217 680K

R221 220

C212 100uF 16V

R216 220

R215 220

D205 1N4148

D206 1N4148

C208 10uF

C209 10uF

25V

25V

R214

75

Q207 2SC1815

R227 1K

R259 1K

R228 1K

C262 0.033uF 100V MEMB

R226 2.2K

Q204

2SA1015

R225 680K

R229 220

C217 100uF 16V

R224

220

R223 220

D207 1N4148

D208 1N4148

C213 10uF

C214 10uF 25V

25V

R222

75

BNC201

BNC203

BNC204

BNC202

C702 10uF 25V

R703 8.2K

R704 220

D702 1N4148

D704 1N4148

RCA705

C703 10uF 25V

R705 8.2K

R706 220

D705 1N4148

D706 1N4148

RCA703

C701 10uF 25V

R701 8.2K

R702 220

D701 1N4148

D111 1N4148

RCA701

C704 104pF

C705 100uF

50V CC

16V

Q202

2SC1815

R213 2.7K

R212 10K

R211 10K

C207 0.22uF

D203 1N4148

D204 1N4148

63V MEMB

R256 47

R709 47

R708 47

R257 47

C220 0.22uF

MEMB

63V

YC201

YC202

R209 4.7K

R210 75

C206 0.22uF 63

V

MEMB

1

2

3

4

W802

1

2

3

4

5

W801

Q801 2SC1815

Q802 2SC2688

R804 220

C803 391pF

R803 3.3K

VR804 300 ohm

VR801 5K

1/4W

1/4W

R-GAIN

R-BIAS

50V CC

R801 12K

R819 2.2K

3W

1/2W

Q805 2SC1815

Q806 2SC2688

R813 3.3K

VR805 5K

1/4W

G-BIAS

Q803 2SC1815

Q804 2SC2688

R809 220

C804 391pF

R808 3.3K

VR802 300 ohm

VR803 5K

1/4W

1/4W

B-GAIN

B-BIAS

50V CC

C801 100uF 25V

H.V

R

G

B

H

H

SK801

C

R

T

C807

SGP801

250V

SGP802

250V

SGP803

250V

C806 103pF

R816 220K

FOCUS1

G2

H.V

(TO MAIN 

BOARD 

B904)

(TO MAIN 

BOARD 

B201)

(TO MAIN  BOARD P201)

1/2W

1.5KV CC

VIDEO BOARD

SIGNAL BOARD

NOTE :

THE UNIT 

OF 

RESISTANCE 

"OHM" 

IS 

OMITTED 

K-1000 

OHMS 

AND 

ALL RESISTOR 

ARE 

"1/6W" 

AND 

"5%" 

UNLESS 

OTHERWISE 

NOTES 

.

ALL CAPACIRORS 

RATING 

ARE 

"50V" 

UNLESS 

OTHERWISE 

NOTES 

.

M

-1MEG OHMS 

.

R

G

B

+8V

: CRITCAL SAFETY PARTS

!

!

105

+7V(Heater)

+190V(Video)

R805 3.3K

L80

1

R818

R802

L804

R821

R814 360

C805 391pF

1/4W

50V CC

R815 3.3K

R823

R817 12K

R824 2.2K

3W

1/2W

L80

3

R811

R812

L806

R825 12K

R826 2.2K

3W

1/2W

L802

R806

R807

L805

R810 3.3K

R822

1/4W

1/4W

1/4W

105

S

B

A

SWITCH

SWITCH

SWITCH

A

B

S

Y IN

C IN

SIGNAL BOARD & VIDEO BOARD

Summary of Contents for VMC-8621P

Page 1: ...ING INSTRUCTIONS 3 2 SERVICE ADJUSTMENTS 5 3 PARTS LIST 8 CIRCUIT DIAGRAMS PRINTED WIRING BOARDS C1 Product Code 114 951 30 Europe VMC 8621P Product Code 114 951 31 U K Product Code 114 951 32 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 b...

Page 2: ...sync C signal 0 286 Vp p 75 ohm negative sync bridge connection possible Composite sync signal 1 0 Vp p 75 ohm BNC connector 2 automatic temination setting Audio signal 6dBs 400 mVrms RCA pin 3 bridge connection possible YES 1 W Oval speaker x 1 100 to 240 V AC 50 60 Hz 95 Watts 10 C to 45 C storage temperature 10 to 90 492 x 474 x 482 mm 29kg SPECIFICATIONS Color system Picture tube Resolution In...

Page 3: ... FRONT PANEL CONTROLS 2 4 5 6 7 G 3 F 1 SCAN 9 8 1 COLOR 2 TINT 3 BRIGHTNESS 4 CONTRAST 5 SHARPNESS 6 VOLUME 7 DWELL TIME 8 LANGUAGE 9 TITLE 10 VERSION EXIT OSD 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 di...

Page 4: ...onitored 3 Rear B terminals AUDIO VIDEO B terminals When the monitor B selector button at the front of the monitor is pressed the audio and video signals from the component which is connected to these terminals can be monitored 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 component wh...

Page 5: ...e to 1 Adjusting VR306 make signal side of picture of scale at 1 5 2 2 position Adjusting vertical linear control VR302 for equal spacing of lines between center extreme of scan Max Min Aver age 10 Adjusting vertical center control VR303 to 1 Adjusting vertical size control VR301 make signal side of scale is 1 0 1 5 position VR503 FTB FOCUS VR VR401 VR306 VR302 VR303 VR301 BRIGHT VR and CONTRAST V...

Page 6: ...luminance with video signal to 49 55 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 0 4 0 FL Adjust VR501 make luminance is 49 55 FL Adjust VR502 make luminance is 110 10 FL Then make sure Full White luminance whether it is 49 55 FL ADJUSTMENT ITEM TIMING PATTERN SETTING VR LOCATION ADJUSTMENT PROCE...

Page 7: ... T902 VR306 S108 S107 LED101 S106 S104 S101 S103 S102 S105 VR804 VR805 VR801 VR802 VR803 Q804 Q802 Q806 F901 V LIN V SIZE V CENTER ABL H SIZE X RAY H PHASE R GAIN R BAIS B BAIS G BAIS B GAIN D910 ZD501 Fig 4 Fig 5 Fig 6 MAIN BOARD Parts side FUNCTION BOARD Parts side VIDEO BOARD Parts side ...

Page 8: ...Z90X01 CPT 17 645 046 4928 RUBBER WASHERDIA20 DIA6 1T 18 645 046 4966 WASHER 6 5 19 1MM 19 645 046 4843 PH SCREW 6 12MM 20 645 052 5414 DEGAUSSING COIL CM 21DUA 21 645 055 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 27 645 052 ...

Page 9: ...3 645 034 2141 CF RES 3 3KOHM 1 4W 5 R814 645 046 2665 CF RES 360OHM 1 4W 5 R815 645 034 2141 CF RES 3 3KOHM 1 4W 5 R816 645 046 3235 MOF RES 220KOHM 1 2W 5 R817 645 034 2462 MOF RES 12KOHM 3W 5 R819 645 034 2417 MF RES 2 2KOHM 1 2W 1 R824 645 034 2417 MF RES 2 2KOHM 1 2W 1 R825 645 034 2462 MOF RES 12KOHM 3W 5 R826 645 034 2417 MF RES 2 2KOHM 1 2W 1 VARIABLE RESISTORS VR801 645 046 4805 POT VR 5K...

Page 10: ...R 2SC1815GR C227 645 055 0249 EC CAP 470UF 16V 20 C228 645 034 2783 EC CAP 470UF 16 V C229 645 045 9962 EC CAP 47UF 25 V C230 645 034 2837 CC CAP 104PF 50V Y5V C231 645 046 3983 PEI CAP 0018UF 50V 5 C232 645 046 3983 PEI CAP 0018UF 50V 5 C233 645 046 3952 PEI CAP 001UF 100V 5 C234 645 046 3952 PEI CAP 001UF 100V 5 C235 645 034 2967 PEI CAP 0047UF 50V 5 C236 645 046 4287 MEMB CAP 1UF 63V 5 C237 645...

Page 11: ...2696 CF RES 3 9KOHM 1 6W 5 R162 645 046 2849 CF RES 5 1KOHM 1 6W 5 R163 645 046 2740 CF RES 43KOHM 1 6W 5 R165 645 046 2191 CF RES 10KOHM 1 6W 5 R166 645 046 2474 CF RES 2 2KOHM 1 6W 5 R167 645 046 2191 CF RES 10KOHM 1 6W 5 R168 645 046 2788 CF RES 4 7KOHM 1 6W 5 R169 645 046 2771 CF RES 470OHM 1 6W 5 R231 645 046 2481 CF RES 22KOHM 1 6W 5 R232 645 046 2320 CF RES 15KOHM 1 6W 5 R233 645 034 1854 C...

Page 12: ...P235142 N S P GND3 645 034 3667 CONNECTOR BASE P235142 N S P F901 645 034 4404 FUSE CLIP BOARD TYPE 5 20MM F901 645 034 4404 FUSE CLIP BOARD TYPE 5 20MM FUNCTION BOARD VMC 8621P 645 052 5520 RESISTORS R114 645 046 2467 CF RES 220OHM 1 6W 5 SWITCHES S101 645 046 5109 TACT SWITCH TSP620 1150 S102 645 046 5109 TACT SWITCH TSP620 1150 S103 645 046 5109 TACT SWITCH TSP620 1150 S104 645 046 5109 TACT SW...

Page 13: ...D201 645 034 3308 DIODE 1N4148 D202 645 034 3308 DIODE 1N4148 D203 645 034 3308 DIODE 1N4148 D204 645 034 3308 DIODE 1N4148 D205 645 034 3308 DIODE 1N4148 D206 645 034 3308 DIODE 1N4148 D207 645 034 3308 DIODE 1N4148 D208 645 034 3308 DIODE 1N4148 D701 645 034 3308 DIODE 1N4148 D702 645 034 3308 DIODE 1N4148 D704 645 034 3308 DIODE 1N4148 D705 645 034 3308 DIODE 1N4148 D706 645 034 3308 DIODE 1N41...

Page 14: ... W B MAIN P W B CONTROL KEY P W B C6 VIDEO P W B C7 SIGNAL P W B C7 PRODUCT SAFETY NOTICE 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 VOLT AGE...

Page 15: ...D E F G H I J K C2 BLOCK DIAGRAM AND CIRCUIT DIAGRAMS B901 AC IN B903 DEGAUSSING COIL B101 P101 P102 CONTROL KEY BOARD SIGNAL BOARD P201 P201 VIDEO BOARD CRT B201 W801 B904 W802 P401 H DY V DY SPEAKER B701 L8MZ5 WD MAIN BOARD SIGNAL SIGNAL MAIN MAIN OVERALL WIRING BLOCK DIAGRAM ...

Page 16: ...1uF C304 3300uF Q311 2SB647 VR306 10K C130 2 2uF S101 ENT S102 O U S103 DOWN S104 UP S105 OSD S106 A S107 B S108 C LED101 R114 220 E B 125 5V ABL 12V CON 8V FBI SCO 12V H SYN C 8V C107 10uF C108 10uF C109 10uF C110 330uF C111 10uF C112 10uF C128 1uF C10 1 4 7uF C907 100uF C905 220uF C920 1000uF C92 1 1000uF C917 100uF C91 8 100uF C936 47uF C933 2200uF C924 1000uF C925 1000uF C922 1000uF C923 1000u...

Page 17: ...S101 ENT S102 O U S103 DOWN S104 UP S105 OSD S106 A S107 B S108 C LED101 R114 220 E 12V H SYNC 8V C107 10uF C108 10uF C109 10uF C110 330uF C111 10uF C112 10uF C128 1uF C10 1 4 7uF C907 100uF C905 220uF C920 1000uF C92 1 1000uF C917 100uF C91 8 100uF C936 47uF C933 2200uF C924 1000uF C925 1000uF C922 1000uF C923 1000uF C92 8 100uF 16V C93 1 470uF C93 0 1000uF C915 472pF C12 6 2 2uF R169 470 C708 33...

Page 18: ...00V 1 6KV 630V C402 47uF 100V C50 2 10uF Q502 2SA733P VR501 50K VR502 10K C50 5 2 2uF VR503 50K C506 2 2uF Q503 2SA733P C22 9 47uF C240 2 2uF C312 100uF Q304 2SB647 C31 6 47uF VR303 10K C313 1000uF VR401 10K 100V C413 1uF VR301 500 VR302 10K C30 3 1uF C304 3300uF Q311 2SB647 VR306 10K E B 125 5V ABL 12V CON 8V FBI SCO 12V H SYNC C92 8 100uF 16V F AB CHROMA R347 2 4K C222 10uF 2 3 4 B904 9 10 11 2 ...

Page 19: ... CC 16V Q202 2SC1815 R213 2 7K R212 10K R211 10K C207 0 22uF D203 1N4148 D204 1N4148 63V MEMB R256 47 R709 47 R708 47 R257 47 C220 0 22uF MEMB 63V YC201 YC202 R209 4 7K R210 75 C206 0 22uF 63V MEMB 1 2 3 4 W802 1 2 3 4 5 W801 Q801 2SC1815 Q802 2SC2688 R804 220 C803 391pF R803 3 3K VR804 300 ohm VR801 5K 1 4W 1 4W R GAIN R BIAS 50V CC R801 12K R819 2 2K 3W 1 2W Q805 2SC1815 Q806 2SC2688 R813 3 3K V...

Page 20: ...A B C D E F G H I J K 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 A B C D E F G H I J K C7 MAIN P W B PRINTED WIRING BOARDS P W B CONTROL KEY P W B ...

Page 21: ...A B C D E F G H I J K 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 A B C D E F G H I J K C8 SIGNAL P W B VIDEO P W B ...

Page 22: ...May 02 SANYO Electric Co Ltd Osaka Japan ...

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