Sanyo VMC-8621P Service Manual Download

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MAIN BO

ARD AND CONTR

OL KEY BO

ARD

F901

3.15A

B902

ZR901

R90

560K

C90

0.1uF

PTC901 14

T901

NTC901

R90

0.68

D914 BYT52M

D905 BYT52M

R934 470

R904 47K

R905 47K

R906

10K

C906

0.1uF

R907 10

D906 PG102R

Q901

7N60A

C919 222pF

R922 0.22

R91

16K

R919

47 ohm

R92

68 ohm

R921 10K

D909 1N4148

R91

220

C909 561pF

C912 0.1uF

C911 0.056uF

C910 472pF/50V

R91

47 ohm

R91

560 ohm

R91

47 ohm

D908 1N4148

R908

10K

R914

10K

R913 220

R911 2K

R910

9.1K

R90

5.1K

ZD901 HZ22-2

D911

31DF4

D910 BYT56J

D916 BYT56J

R923 220

C916

331pF

L901

20uH

L902

20uH

L905 20uH

D913

31DF4

L903

20uH

L904 20uH

R930

R929 560

IC902 KA431

R93

C926

0.22uF/63V

R92

220

R92

2.21K

B+ (125.5V)

+27V

190V(VIDEO

)

+7V(Heater)

+12V

+8V

R933 56 ohm

C92

104pF

+5V

R932 10 ohm

C93

104pF

8V(AUDIO)

B+ (125.5V

)

R935

1.5 ohm

R107

R108

R109

R110

R111

R153

R154

R101

R102

R158

R104

D107 1N4148

Q106

DTC124ES

R150

R151

X103 8

MHz

R149

C120 33pF/CC

C121 33pF/CC

R155

10K

R157 33K

D110 1N4148

Q103

2SC1815

R122

R123

2.2K

R124

R125

R127 91

R128 1K

R129 2.2K

R130 390

R131 608

R166 2.2K

R132

2.2K

Q105

2SC1815

Q104

2SC1815

R13

10K

R13

10K

R134 47K

Q101

2SC1815

Q102

2SC1815

R156 2.2K

R160

1.2K

R140 47K

R16

3.9K

R162 5.1K

Q108

2SC1815

R120

R121

R141

180

R142

R143

470

R144

R145

12K

R146

12K

R147

12K

D104

D101~

1N4148

Q107

2SC1815

R16

4.7K

R11

47K

R116

47K

R165

R133 390K

R163

43K

R105 33K

C218

0.1uF

C122

0.1uF/63V

C123

0.1uF/63V

C124

0.1uF/63V

X202 4.43MHz

X201 3.579MHz

C235

472pF

C236 0.1uF

C237 20pF

C238

20pF

R253 100K

R402 15K

C412

472pF

C239

0.022uF

ZD201

HZ5C1

C230 104pF

R252 150

C231 0

.0018uF

C232 0

.0018uF

C233 0.001uF/100V

C234

0.001uF/100V

C410 0.1uF

R414 4.7

C221 0.1uF/63V

R415 18K

R401 820K

Q403

DTC124ES

R248 560

R239 100 ohm

R240 100 ohm

R241 100 ohm

R242 1K

D209~ 1N4148

D211

R236 100K

R243

100K

Q211

DTC124ES

Q212

DTC124ES

Q208

2SC1815

Q209

2SC1815

R255

150

R152 1K

R159 1K

R254

10K

C224

0.47uF/63V

Q210

2SC1815

R231 22K

R232 15K

R233 1K

R235 100K

R261 47K

R234 5.6K

R249 5.6K

+5V

BOUT

GOU

ROU

RGBIN

C422 472pF

D404 BYT56M

D405 BYT56M

L405 0.5mH

C423 0.018uF

D403 BYT56J

401

C425

10uF

C501 0.22uF

Q312

2SD1163A

R501 1K

R328 3.9

R341 100K

R503 10K

Q313

2SC1815

R342 360

R511 100K

R512 2.2K

R344 1K

R410 1K

C403 681pF

L402

60uH

R506 4.7K

R406

51 ohm

C50

0.1uF

D502

1N4148

Q401

2SD1348T

D503 1N4148

R405 47 ohm

R507 27K

C401 0.056uF

D504 PG102R

R508

12K

R421

9.1K

ZD501 HZ9C1

R510

12K

R509

33K

Q501

2SC1815

+8V

+12V

R307

4.3K

R308

4.3K

C308 472pF

C310 222pF

C309 102pF

C307 102pF

R311 470

D301 1N4003

Q303

2SD667

R314

270

R315 270

R325 13K

R312

510 1W

R309

270

R326 100K

R327

10K

C31

0.1uF

Q305

2SC1815

TSC

PAL

C706

0.47uF

R71

390

R710

8V(AUDIO)

C301 332pF

C411 272pF

R301 15K

R302

15K

R303 51ohm

R305

1 ohm

R304

27K

R167 10K

R323 910K

C302 0.1uF

C424 0.22uF

R320 75K

FBI/SCO

PAL

NTSC

+8V

+27V

BOUT

GOU

ROUT

RGBIN

H-

SYN

V-OUT

V-OU

SHARP

TINT

TIN

COLOR

BRI

CON

CVBS EXT

CHROMA

TLP721F

R502 56K

D901~D904

PG5407

C902 0.1uF

C903 472pF

C904 472pF

R126

+8V

C226 2.2uF

C227 470uF

C225 10uF

C223

47uF

Q402

2SC5296

C428 334pF

1KV

250V

100V

1.6KV

630V

C402 47uF

100V

C50

10uF

Q502

2SA733P

VR501 50K

VR502

10K

C50

2.2uF

VR503 50K

C506 2.2uF

Q503

2SA733P

C22

47uF

C240 2.2uF

C312 100uF

Q304

2SB647

C31

47uF

VR303

10K

C313 1000uF

VR401 10K

100V

C413 1uF

VR301 500

VR302 10K

C30

1uF

C304 3300uF

Q311

2SB647

VR306 10K

C130 2.2uF

S101

ENT

S102

O/U

S103

DOWN

S104

S105

OSD

S106

S107

S108

LED101

R114

B+ (125.5V

)

+12V

FBI/SCO

+12V

H-

SYN

+8V

C107 10uF

C108 10uF

C109 10uF

C110 330uF

C111 10uF

C112 10uF

C128 1uF

C10

4.7uF

C907 100uF

C905 220uF

C920 1000uF

C92

1000uF

C917 100uF

C91

100uF

C936 47uF

C933

2200uF

C924 1000uF

C925 1000uF

C922 1000uF

C923 1000uF

C92

100uF/16V

C93

470uF

C93

1000uF

C915

472pF

C12

2.2uF

R16

470

C708 3300uF

CHROMA

R347 2.4K

D907 PG106R

Q903

2SC1815

Q902

2SA733P

C91

100uF

C222 10uF

T902

B904

B901

B903

IC901

UC3842AN

NTSC

MUT

GND

OSCO

OSCI

SCL

SHARP

VSYNCO

HSYNCO

CON

COLOR

TINT

H-SYNCI

V-SYNCI

BRI

IC101

NT68P61A

P101

P102

IC104

74LS74(M)

IC102

24LC02B

IC701

TDA7056

B70

P201

VDD1

TST

XTO

XTI

ESET

VSYNC

HSYNC

GND

SCL

GND

FBLK

VDD2

IC103

STV9427

B201

B101

GND

Vout

IC906

7805

AUDEEM

IFDEM

SOIF

EXTAU

IFOUT

DEC DI

GND1

GND2

DEC FT

NT CVBS

PEAKI

CVBS EXT

CHROMA

BRI

BOUT

GOUT

ROUT

RGBI

CON

HUE

BYI

RYI

RYO

BYO

XTALOUT

DET

XTAL

VSTAR

HOUT

FBI/SCO

PH2L

PH1L

VRAMP

VOUT

AFCOUT

IFIN1I

IFIN

AGCOUT

DEC AGC

TUNE ADJ

AUOUT

DEC DEM

DEC BG

IC202

TDA8361

IC301

TDA3654

MEMB

PEI

MEMB

PEI

MEMB

PEI

MEMB

PEI

C409 33uF

MEMB

PEI

PPS

PPN

MEF

MEMB

630V MEF

PEI

MEMB

Q301

2SC1815

C228 470uF

C127 0.1uF

C125 104pF

C219 0.022uF

C260 470uF

100V

16V

TO SIGNAL

BOARD

P201

( )

CONTROL KEY

BOARD

(TO MAIN BOARD B101)

TO CONTROL KEY BOARD

P101 AND P102

)

(TO VIDEO

BOARD

W801

)

(TO VIDEO

BOARD

W802)

(TO SPEAKER

)

VP2

GND2

SAN

GND1

Vo(R-Y

)

Vo(B-Y

)

Vi(B-Y)

Vi(R-Y)

IC203

TDA4665

V-SIZE

V-LIN

V-CENT

H-SIZE

H-PHASE

ABL

CON

X-RAY

AIN BOARD

(TO DEGAUSSION)

P401 H-DY

P401 V

-DY

C250 10uF

D212 1N4148

D213

1N4148

C241 33uF

+8V

R937 120K

1/4W

250V

35V

10V

25V

250V

16V

400V

2KV

35V

400V

250V

1/2W

16V

100V

400V

50V/CC

1/2W

16V

63V

10V

50V

63V

50V

PEI

25V

50V

16V

50V

25V

63V

50V

100V

35V

50V

63V

25V

50V

IC904 LM317

25V

R938

240

R939 1.3K

R527 1K

D511 PG106R

160V

25V

50V

1/2W

100V

1/4W

FOCUS1

PIN1

NOTE :

UNIT OF

RESIST

ANCE

"OHM"

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

)

105

R528 560

R94

560

R322 200K

: CRITICAL SAFETY PARTS

C507 0.068uF PEI

C91

0.068uF

50V

16V

50V

PEI

C312A 153pF

50V/PEI

R429

270

R420

C421

C429 222pF

1.6KV PPS

D505

15K

63V

R310 1K

50V

1/2W

+27V

R348

H-

SYN

63V

50V

T502

X101

8MH

C10

33pF

C10

33pF/C

C10

104pF

R106 1M

C10

220uF

16V

R927 24K

R427

1/2W

63V

C937 0.0056u

100V/MEMB

D915 30DF2

FR902

1 ohm 1/2W

D912 BYT56J

FR901

1 ohm 1/4W

R942 50K

R924 50K

C50

2.2uF

50V

R936

0.22ohm 2W

105

SWITCHING CTL

REG.

CONTROL C.P.U.

)

DELAY

VIDEO DECODER

V-DEFERECTION

O.S.D.

AMP.

ROM

F.F.

O/U

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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