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Sanyo CR21KX2, Service Manual

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Sanyo CR21KX2 Service Manual Download Page 26

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Summary of Contents for CR21KX2

Page 1: ... than 600Ω Sound Output RMS 5W 5W Dimensions 625 W 460 5 H 483 8 D mm Weight approx 21 5 Kg Specifications subject to change without notice Product Code 111358204 Original Version Chassis Series AC5 A C4VE FILE NO Model No CR21KX2 Service Ref No CR21KX2 00 Singapore Give complete SERVICE REF NO for parts order or servicing It is shown on the rating plate at the cabinet back of the unit This T V re...

Page 2: ...ON PRECAUTION The primary source of X RADIATION in television receiver is the picture tube The picture tube is specially con structed to limit X RADIATION emissions For continued X RADIATION protection the replacement tube must be the same type as the original including suffix letter Excessive high voltage may produce potentially hazardous X RADIATION To avoid such hazards the high voltage must be...

Page 3: ...OR VCC 5V 2 10 52 54 8 43 5 18 25 H VCC 9V 9V 1 8 5VRC 14 15 16 17 R G B BLK 46 44 VIDEO OUT INT VIDEO IN R OUT G OUT B OUT H OUT V OUT 19 20 21 27 23 IC201 IF VIDEO CHROMA MUTE VOL L IN R IN Rout Lout IC001 AUDIO AMP 180V 1 5 IC501 VERT DEF SWITCH VR631 130V Reg Reg 24V 15V 9V 5VRC Reg Reg 24V Protect T431 H DRIVE TRANS Q432 H OUT 25V 130V B G R 9V H V L902 DY AFC ABL T471 FBT Q901 CRT Heater HV ...

Page 4: ...D GREEN OUT Active High OSD BLUE OUT Active High DEFLECTION CIRCUIT HORIZ SYNC IN ACTIVE LOW VERT SYNC IN ACTIVE LOW POWER PROTECT IN POWER ERROR LOW POWER CIRCUIT etc SCL SDA IC802 MEMORY OSC X801 32 768KHz CPU OSC OUT CPU OSC IN LED ON TIMER LED OUT ON TIMER ON Low RC SIGNAL IN ACTIVE HIGH RC PRE AMP 24 26 30 SOUND VOLUME OUT ACTIVE LOW IC001 AUDIO AMP VIF M OUTPUT HIGH NTSC3 58 LOW OTHER A101 F...

Page 5: ...LMP V C VCC 5V 46 47 48 49 50 A2C PLL 51 52 53 54 Audio Output FM Output Selected Audio Output PIF AGC RF AGC Output PIF Input1 PIF Input 2 IF Ground IF Vcc FM Filter AFT Output Bus Data Bus Clock ABL Red Input Green Input Blue Input Fast Blanking Input RGB Vcc Red Output Green Output Blue Output fsc output or C Sync output Vertical Output Ramp ALC Filter Horizontal BUS Vcc Horizontal Output Horiz...

Page 6: ... 3bit Amp 54 10p SIF In Sound BPF VCO Coil VCO COIL1 VCO COIL2 48 49 VIF VCO Chroma Counter B N INV IF Ident OSC C D Amp SIF Sys 2bit pre scaller SIF VCO 500K BPF SIF APC Filter 1K 0 01u 1000p 53 LIM AMP FM Det FM Level 5bit Chroma C D APC Det 500K Det To BUS Chroma VCO VIF Counter Reset Pulse VCO Ident VIF Sys 2bit Phase Detector A MUTE 1bit VOLUME D A VOLUME Filter A SW 1bit Input Select VOLUME ...

Page 7: ...uit malfunctions When something abnormality occurs during TV reception the TV set goes to the stand by mode When an abnormality occurs during TV reception it causes pin 27 of the CPU to go continually Low less than 0 75V for about one second The CPU detects that this has occurred and outputs the signal from pin 31 to switch off the power supply lines Releasing the protective circuit and restoring ...

Page 8: ...cedure 1 Put a new memory IC 2 Turn on the TV set 3 Press and hold the TV AV Selector on the TV set for more than 2 seconds The following picture appears on the screen 4 Press the PROGRAMME UP on the TV set while the above On Screen Display is still on the screen The following picture appears on the screen This completes the initialization of memory IC Following shows the initialized contents of m...

Page 9: ... RBIAS 00 255 0 Green Bias Adj GBIAS 00 255 0 Blue Bias Adj BBIAS 00 255 0 Red Drive Adj RDRIV 00 127 64 Green Drive Adj GDRIV 00 15 8 Blue Drive Adj BDRIV 00 127 64 1 LINE APPEAR 21 DRV White Balance Adj 22 B YD 00 15 10 B Y DC level Adj Colour compensation PAL 23 R YD 00 15 10 R Y DC level Adj Colour compensation PAL 24 B YDN 08 07 0 NTSC B Y DC level Adj Difference value over PAL 25 R YDN 08 07...

Page 10: ...correcr operation prevention at the time of a special signal AV mode 74 VCO SW 0 1 0 C VCO Adj Switch 75 VCO ADJ 00 03 3 C VCO Adj 76 CROSS BW 00 03 0 Pattern Output 77 AVNCON 00 127 64 Contrast Adj of the blue back in AV mode 78 AVNBRI 00 127 64 Brightness Adj of the blue back in AV mode 0 1 1 IF Test 2 00 255 136 79 POMT 00 255 25 Power Mute Time Adj 80 CHMT 00 255 10 Channel Change Mute time Ag...

Page 11: ...CO V S Correction adjustment Read Status Item No Item Data value 01 02 03 04 05 26 26 25 24 23 22 01 Display for RF AGC RF AGC adjustment Read Status Item No Item Data value Data value for Red Display for DRV White balance adjustment Read Status Item No Item Data value for Blue To return to normal TV mode press the MENU button on the TV set or the remote control handset 2 Select item by pressing t...

Page 12: ... 2 Set the brightness and contrast to normal 3 Select H PHA in the service mode 4 Change value to be optimum horizontal centre position 5 Exit from service mode Item 02 H PHA HORIZONTAL CENTRE Horizontal centre 1 Receive the monochrome circular pattern 2 Set the brightness and contrast to maximum 3 Select V SIZ in the service mode 4 Change value to be optimum vertical size 5 Exit from service mode...

Page 13: ...the control button alloca tions in this mode 7 Select Item 21 DRV mode to enter the white balance adjusting mode 8 Press the 3 Red Drive 4 Red Drive Blue Drive or RECALL Blue Drive button alternately to produce normal black and white picture 9 Exit from the service mode 10 Check for proper grey scale tracking at all brightness levels NOTE If the grey scale adjustment is made after picture tube rep...

Page 14: ...it HORIZ WIDTH ADJUSTMENT T471 FBT Q432 HORIZ OUT B C E C436 Horizontal Width Adjustment MAIN BOARD 1 Receive the monochrome circular pattern 2 Set the brightness and contrast to maximum 3 Adjust the vertical centre of the picture with SW501 VERTICAL CENTRE Vertical centre SW501 V CENTER T IC501 VERT OUT T611 CONVERTER TRANS IC201 IF VIDEO CHROMA Vertical Cerntre Adjustment Note B 130V Voltage Che...

Page 15: ...function ON by pressing the VOLUME or button To cancel set to OFF 2 Tuning Lock setting The following special functions can be set up on this TV set With this function a maximum sound volume limit can be set at any level 3 Music Mode setting When Music Mode is ON Programme position from 91 to 99 and 0 are set Music Mode Only sound is provided and any picture is not on the screen under Music Mode S...

Page 16: ...olours to check this use bias controls Readjust the yoke position if necessary until all screens are pure 7 Adjust each Bias control and screen control to obtain white raster Refer to Gray Scale Adjustment If part of the picture screen is coloured adjust the Deflection Yoke position forward or backward slightly 8 Tighten the mounting screw of the Deflection Yoke Adjust Convergence next CENTRE CONV...

Page 17: ...3 0142 LABEL RATING C4VE 9 610 256 7670 HOLDER AC CORD SGP D4VA 10 645 054 3579 ASSY REMOCON JXMYA 11 610 300 5102 RC BATTERY LID JXMYA 610 302 9696 INSTRUCTIONS MANUAL C4SY A Key No Part No Description Key No Part No Description Note Parts order must contain Service Ref No Part No and descriptions 8 VIDEO L AUDIO R TV AV MENU P AUDIO IN VIDEO IN AUDIO OUT VIDEO OUT ANT 75Ω R L 1 2 3 4 5 6 7 0 7 1...

Page 18: ...tion Product safety should be considered when a component replacement is made in any area of a receiver Components indicated by a mark in this parts list and the circuit diagram show components whose value have special significance to product safety It is particularly recommended that only parts specified on the following parts list be used for components replacement pointed out by the mark Note P...

Page 19: ... 405 009 7003 TR 2SB985 T Q661 405 059 9903 TR 2SD1913 R RA 405 060 0005 TR 2SD1913 S RA Q681 405 011 8401 TR 2SC1740S Q 405 011 8500 TR 2SC1740S R 405 011 8609 TR 2SC1740S S 405 012 2002 TR 2SC1815 GR 405 012 2101 TR 2SC1815 O 405 012 2309 TR 2SC1815 Y 405 020 7501 TR 2SC945A PA 405 020 7709 TR 2SC945A QA 405 020 7907 TR 2SC945A RA Q683 405 089 0000 TR 2SA1707 S 405 089 0109 TR 2SA1707 T 405 009 ...

Page 20: ... 403 305 3507 CERAMIC 0 1U Z 50V C224 403 305 3507 CERAMIC 0 1U Z 50V C225 403 049 0008 ELECT 1U M 50V C226 403 049 0008 ELECT 1U M 50V C227 403 049 0008 ELECT 1U M 50V C231 403 260 2904 MT COMPO 0 33U J 50V C232 403 260 2904 MT COMPO 0 33U J 50V C233 403 049 4204 ELECT 10U M 50V C234 403 215 2201 CERAMIC 0 01U K 50V C243 403 215 2201 CERAMIC 0 01U K 50V C244 403 051 3103 ELECT 47U M 50V C245 403 ...

Page 21: ... 3307 MT GLAZE 2 7K JA 1 16W R021 401 105 4106 MT GLAZE 3 3K JA 1 16W R022 401 105 3307 MT GLAZE 2 7K JA 1 16W R023 401 105 4106 MT GLAZE 3 3K JA 1 16W R024 401 105 3406 MT GLAZE 27K JA 1 16W R026 401 105 6506 MT GLAZE 680 JA 1 16W R027 401 105 0702 MT GLAZE 100K JA 1 16W R028 401 027 5205 CARBON 680 JA 1 6W R029 401 105 0504 MT GLAZE 1K JA 1 16W R031 401 105 0702 MT GLAZE 100K JA 1 16W R034 401 1...

Page 22: ... 2600 CARBON 5 6K JA 1 6W R615 401 025 8208 CARBON 22K JA 1 6W R617 401 012 5708 CARBON 1K JA 1 4W R619 401 016 1508 CARBON 22 JA 1 4W R620 401 007 5805 CARBON 120K JA 1 2W R621 401 007 5805 CARBON 120K JA 1 2W R622 401 014 5201 CARBON 15K JA 1 4W R623 401 026 4308 CARBON 3 3K JA 1 6W R624Z 401 069 6208 OXIDE MT 82 JA 2W R625 401 069 1708 OXIDE MT 68 JA 2W R626 401 017 1507 CARBON 2 7K GA 1 4W R62...

Page 23: ...9 5808 ZENER DIODE MTZJ7 5A 407 057 6304 ZENER DIODE RD7 5EB1 407 151 8808 ZENER DIODE UZ 7 5BCA D023 407 149 0807 DIODE 1SS355 TE 17 D103 407 100 0204 ZENER DIODE MTZJ36A 407 056 2307 ZENER DIODE RD36EB1 D122 401 105 7909 MT GLAZE 0 000 ZA 1 16W D1910 407 158 9204 LED SPR 39MVWF D1910A 610 273 7929 HOLDER LED S4KF D243 407 005 4505 DIODE DS442X 408 008 2406 DIODE 1N4148 407 012 4406 DIODE 1SS133 ...

Page 24: ...7 SWITCH PUSH 1P 1TX1 645 027 7382 SWITCH PUSH 1P 1TX1 SW1905 645 003 4701 SWITCH PUSH 1P 1TX1 645 019 4887 SWITCH PUSH 1P 1TX1 645 027 7382 SWITCH PUSH 1P 1TX1 SW1906 645 003 4701 SWITCH PUSH 1P 1TX1 645 019 4887 SWITCH PUSH 1P 1TX1 645 027 7382 SWITCH PUSH 1P 1TX1 SW501 610 011 2728 SWITCH LEVER 1P 3T 652 000 0049 SWITCH LEVER SW601 645 050 4129 SWITCH PUSH POWER 2P 2T 645 053 4904 SWITCH PUSH P...

Page 25: ...TZJ10B 407 099 6201 ZENER DIODE MTZJ10C 407 054 0008 ZENER DIODE RD10EB2 407 054 0107 ZENER DIODE RD10EB3 D732 407 099 6102 ZENER DIODE MTZJ10B 407 099 6201 ZENER DIODE MTZJ10C 407 054 0008 ZENER DIODE RD10EB2 407 054 0107 ZENER DIODE RD10EB3 D733 407 099 6102 ZENER DIODE MTZJ10B 407 099 6201 ZENER DIODE MTZJ10C 407 054 0008 ZENER DIODE RD10EB2 407 054 0107 ZENER DIODE RD10EB3 D741 407 012 4406 DI...

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Page 28: ...SANYO Electric Co Ltd A14800 Sep 02 30 BB Printed in Japan ...

Page 29: ... RD6 2EB3 MTZJ6 2C 1 16GJ 4 7KC 1 2DJ 100K R3K1202NN R3C7202NN B 3K 1 2DJ 150K AH 1 16GJ 82KC 1 16GJ 330KC 2400030 560K 2400030 2400030 33K 6 8K 1000KK470 CRD NH AE DJ4 7K 2SB985 S T 2SA1707 S T DJ10K EU2 EU2Z 1 2CK 5 6MXG 35EM470T X 400KK470X 250KK470XH 250KM470XN X 2400010 2400010 2400010 J 2SC3807 RYA FK0 022BE X 2SC4429LYB 2SC4429MYB 2000KK680 NH 2SJ68 L51B4230N L51B4270N RU4YXLF L1 FE301 1L43...

Page 30: ...5 0V IC651 Pin 1 12 5V 2 0V 3 5 0V VOL UP VOL DOWN TV AV MENU VIDEO IN AUDIO IN L AUDIO IN R IC001 AUDIO AMP STEREO IC002 AUDIO AMP MONO T471 FBT Q432 HORIZ OUT B C E A101 TUNER IC281 SECAM SW501 V CENTER C436 Q613 POWER OUT Q612 POWER DRIVE CH UP CH DOWN IC801 CPU SOLDER SIDE VR631 B ADJ IC802 MEMORY IC501 VERT OUT T611 CONVERTER TRANS T431 HORIZ DRIVE TRANS IC201 IF VIDEO CHROMA RC PRE AMP TP B ...

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