Sharp SX68JS10 Service Manual Download | Manualshive

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SX68JS10

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BLOCK DIAGRAM

MAIN UNIT BLOCK DIAGRAM

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Summary of Contents for SX68JS10

Page 1: ...Required by safety regula tions in some countries the set should be restored to its original condition and only parts identical to those specified be used MODEL SERVICE MANUAL COLOUR TELEVISION MODEL SX68JS10 Page FEATURES 2 ELECTRICAL SPECIFICATIONS 2 IMPOTANT SERVICE NOTES 3 ADJUSTMENT PRECAUTION 4 SERVICE ADJUSTMENT 8 TROUBLE SHOOTING TABLE 17 SOLID STATE DEVICE BASE DIAGRAM 22 WAVEFORMS 23 CHA...

Page 2: ...c Sweep Deflection Magnetic Intermediate Frequency Picture IF Carrier 38 9 MHz Sound IF Carrier 5 5 MHz 33 4 MHz Colour Sub Carrier PAL NTSC 34 47 MHz NTSC 35 32 MHz Audio Power Output Rating 20W x 2 total 40W Max Speaker Size 8 x 12 cm x 2pcs 10cm Round x 2pcs Speaker Box Unit Impedance 6 2 ohm at 400Hz Aerial Input Inpedance 75 ohm Unbalanced Receiving Channels PAL B G VHF E2 thru E12 UHF E21 th...

Page 3: ...exposure at close range the following precautions should be observed 1 When repairing the circuit be sure not to increase the high voltage to more than 33 0 kV at beam 0µA for the set 2 To keep the set in a normal operation be sure to make it function on 29 5 1 5kV at beam 1 7 mA in the case of the set The set has been factory Adjusted to the above mentioned high voltage If there is a possibility ...

Page 4: ...d with the VOLUME UP DOWN key of R C or button of set behind door 5 When the short circuit between the TP1001 1002 is cut off it will be released from the service mode 2 Initial value preset value setting 1 When the MAIN POWER switch set at the service mode side is turned on the initial value will be automatically set only on the new E2 PROM discriminated with the head 4 bytes 2 The initial data i...

Page 5: ...H SIZE50 E W PAR E W COR TRAPE SCM BELL SCM R Y SCM B Y SUB COL SUB COL DVD SUB TINT SUB TINT DVD SUB BRI SUB BRI DVD SUB CONT SUB CONT DVD SUB VOL V AMP60 V LINE60 V S CORR60 V CENT60 H CENT60 H SIZE60 CONT UP CONT UP COL UP COL DOWN BRI UP BRI DOWN TINT UP TINT DOWN CONT DOWN SPA DOWN BAL UP SHARP UP SHARP DOWN TRE UP SPA UP SPA UP BASS DOWN BASS DOWN BASS UP BASS UP TRE DOWN TRE DOWN BAL DOWN C...

Page 6: ...ze adjustment 60Hz 0 63 H SIZE60 PDC H SIZE 31 27 27 Vertical position 0 3 V SHIFT PDC V SHIFT REG 2 2 31 Horizontal high voltage compensation 0 7 H COM PDC H COMPENSATION 4 4 26 Vertical high voltage compensation 0 7 V COM PDC V COMPENSATION 7 7 33 Vertical compensation 0 15 V COR PDC V CORRECTION 10 10 22 Colour decoder TINT adjustment AUTO 0 127 COL TINT AUTO V C D COLOUR DECODER 67 67 23 Colou...

Page 7: ...set ON TIMER VOL Not set REMINDER Not set Entertainment MOVIE AV menu Entertainment Mode CONTRAST COLOUR BRIGHTNESS TINT SHARPNESS WHITE TEMP YNR S BOOST SPATIALIZER TREBLE BASS STANDARD 60 0 0 0 0 0 OFF OFF OFF 0 0 MUSIC 60 0 0 0 0 1 step to Blue ON I ON III ON I 0 0 0 MOVIE 60 0 0 0 0 1 step to Red ON I ON II ON I 0 0 0 NEWS 60 0 0 0 0 0 ON I ON I OFF 0 0 Shipment setting key Voice system B G LA...

Page 8: ...of 50 75 is not used at the electric field strength meter of 50Ω sys tem set 52 1dBV for 54 1dBµV 75Ω Open Moreover take care for the loss if the converter is used Fig 3 1 3 Lower the input electric field strength to 51 1dBµV 75Ω Open 4 Under the conditions 1 and 3 TP210 volt age does not vary Raise the input signal electric field strength to 60 1dBµV 75Ω Open and verify that it is 0 1V or more lo...

Page 9: ...sec Div 10 1 probe is used 3 Vary the sub tint data to adjust the waveform to be gained as shown in Fig 1 1 TP3803 KY 6 pin B Y W Y Cy G Mg R B 1 2 SUB TINT I2 C bus adjust ment DVD signal 1 Select the sub tint adjustment mode automatic Y cut to receive the DVD colour bar signal 2 Connect the oscilloscope to TP800 B Y Range 20mV Div AC Sweep time 20µsec Div 10 1 probe is used 3 Vary the sub tint d...

Page 10: ...es the high band frequency bigger than 100kHz SIF IGR ADJUSTMENT NO Adjustment part Adjusting procedure and conditions Waveform and others 1 VCO COIL T2300 1 Receive E 69CH PAL colour bar Set the receiving frequency at AFT OFF 855 25 MHz 2 Connect the digital voltmeter to TP202 in the main unit 3 Verify that it is turned counterclockwise to 0V and clockwise to 5V and adjust T2300 to make the DC vo...

Page 11: ...al generator 6 With the data of G drive and B drive adjust the colour temperature 12 300K of the white peak to white 7 Adjust the right dark area of the window to 12 300K with R cut off G cut off and B cut off 8 Readjust the colour temperature at the white peak 9 Check 12 300K at the low white Note 1 Apply this adjustment after aging with the beam current 1 500 50µA or more for 30 minutes or more ...

Page 12: ...ust ment DVD signal SUB BRIGHT I2 C bus adjust ment DVD signal When E 2CH Crosshatch pattern or equivalent signal is received 1 Make the image normal with the remote controller 2 Adjust the 3rd 1 thru 5 from the left black of the window pattern to sink 1 Receive the window pattern with AV input 2 Make the image normal with the remote con troller 3 Select the sub bright adjustment mode with the rem...

Page 13: ...h to be straight E 2 Already preset Already preset Adjust the end of the line of the crosshatch to be straight Already preset Adjust if the quality is specially poor Already preset Adjust if the quality is specially poor Already preset Adjust if the quality is specially poor On the items ofV AMPLITUDE60 V LINEARITY60 V SCORRECTION60 V RHASE60 H RHASE60 and H SIZE60 the compensation data is automat...

Page 14: ... Receive J 13CH 2 In P mode select COLOUR 3 The colouring must be varied with UP DOWN Any colour must not remain in MIN 1 Receive E 5CH 2 In P mode select CONTRAST 3 The contrast must be varied with UP DOWN 4 TINT NORMAL 5 1 Receive E 5CH 2 In P mode select SHARPNESS 3 The screen quality must be varied with UP DOWN 1 All CH 0 thru 99 sign must be displayed in green 1 Receive E 5CH 2 In S mode sele...

Page 15: ...ENE screen 14 1 Receive E 5CH music broadcast 2 Switch S BOOSTER in S mode as below OFF 1 2 3 S BOOSTER FUNCTION OPERATION CHECK 2 VIDEO AND AUDIO 11 COLOUR SYSTEM 1 When receiving the E 12CH PAL colour bar check that the colour system can receive in the PAL mode only and that colour is reproduced normally 2 When receiving the NTSC 4 43 colour bar in the AV input mode and setting the colour sys te...

Page 16: ...ut ter minal of AV3 it is automatically switched to AV3 3 When the signal is input to the S video input terminal of AV3 it is automatically switched to AV3 S Setting Auto select in the feature ON Video input check Audio input check S terminal input check 1 The mode must be switched in the cycle of TV AV1 AV2 AV3 DVD TV with TV AV key of R C and the image and voice which correspond to each input ou...

Page 17: ... power circuit consisting of IC700 IC752 and IC600 Yes Yes RED Yes Bus error No See many often D1002 flashes in red This indicates which IC to check up No A B Dose horizontal circuit momentary oscillate Check R1610 IC801 and its peripheral parts TROUBLE SHOOTING TABLE Check the voltage at pin 6 of IC1501 and pin 6 of IC1500 NO VERTICAL SCAN Check IC1500 IC1501 and related circuits Normal Abnormal ...

Page 18: ...7 18 of IC1000 Blown out A No No Yes Yes Check IC1000 IC1002 Q1005 Q1750 and Q1751 TROUBLE SHOOTING TABLE Continued B E 2 PROM IC1001 V C D IC801 PDC IC1500 AV SW IC401 SPATIALIZER IC300 IGR IC2300 PLL TU200 DCF IC5400 4ch DAC IC1003 500 500 2000 ms 2000 ms 500 500 2000 ms 500 500 2000 ms 500 500 2000 ms 500 500 2000 ms 500 500 2000 ms 500 500 2000 ms 500 500 2000 ms 500 500 Bus Err Bus Err Bus Er...

Page 19: ...pin 19 of TU200 Abnormal C Noise or signal appear Is AV1 AV2 AV3 or DVD input normal Check Q200 Q201 Q203 and their peripheral circuit Check TU200 TUNER and its related parts Yes No Check pin 36 of IC401 noise or signal appear Check IC401 its peripheral circuit No Yes Check pin 15 of IC801 noise or signal appear Check IC400 Q404 Q410 Q412 and their peripheral circuit Check IC801 RGB out Normal Che...

Page 20: ... peripheral circuit No Yes Yes Yes Yes Yes No No Turn on colour control Does colour appeart TROUBLE SHOOTING TABLE Continued NO SPECIFIC COLOUR D Is only RF signal s colour abnormal Set colour control Turn on colour system forced switch Does colour appear Fix cotrol to coloured system Check IC5400 Q402 and their peripherals No Check D1603 and its peripherals Check IC801 Check TU200 Q200 Q201 Q203 ...

Page 21: ...ls Yes Yes White balance Check RGB output circuit of IC801 Check IC801 No Yes No Check IC801 Check D1603 and its peripherals Yes No NTSC3 58 Check X801 pin 10 of IC801 and their peripherals PAL NTSC4 43 Check X800 pin 8 of IC801 and their peripherals No Check IC800 IC802 IC803 and their peripherals Yes No No Is chroma input level pin 13 of IC801 proper Ref value 100 500mVp p Yes Fix control to col...

Page 22: ...0N 1 PX0274CE VHiTA1218AN 1 VHiM24C08B 1 VHiBA7655AF 1 VHiM62334FP 1 VHiNJM2168M 1 VHiNJM2243M 1 VHiNJM2534M 1 VHiNJM4560M 1 VHiNJM2284M 1 RH iX3275CEN2 VHiTA8772AN 1 VHiAN7396K 1 VHiNJM2284M 1 VHiLH64256C 1 VHiTC9090AN 1 1 10 20 11 56 29 1 28 RH iX3323CEZZ VHiTDA9808T 1 VHiTDA9874H 1 VHiTA8427K 1 VHiSTRM6821 1 RH DX0452CEZZ RH DX0336CEZZ VHiM51497L 1 VS2SK583 1 VHiTDA7482 1 RH iX3232CEZZ 48 25 1 ...

Page 23: ...23 SX68JS10 WAVEFORMS ...

Page 24: ...SX68JS10 24 CHASSIS LAYOUT ...

Page 25: ...25 SX68JS10 ...

Page 26: ...SX68JS10 26 BLOCK DIAGRAM MAIN UNIT BLOCK DIAGRAM ...

Page 27: ...27 SX68JS10 ...

Page 28: ...SX68JS10 28 POWER CRT IGR UNIT BLOCK DIAGRAM ...

Page 29: ...29 SX68JS10 ...

Page 30: ...CONNECTED WITH AC MAINS VOLTAGE WHENSERVICINGTHEAREA CONNECTANISOLATINGTRANS FORMER BETWEEN TV RECEIVER AND AC LINE TO ELIMINATE HAZARD OF ELECTRIC SHOCK NOTES 1 The unit of resistance ohm is omitted K 1000 ohms M Meg ohm 2 All resistors are 1 16 watt unless otherwise noted 3 All capacitors are µF unless therwise noted P µµF VOLTAGE MEASUREMENT CONDITIONS 1 Voltage in parenthesis measured with no ...

Page 31: ... SCHEMATIC DIAGRAM A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 Infrared Remote Control Unit NOTE The parts here shown are supplied as an assembly but not independently Notes Unless specified the resistors are 1 10W 5 ...

Page 32: ...SX68JS10 32 Tuner NOTE The parts here shown are supplied as an assembly but not independently å VTUVTBT6ED265 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 TU200 ...

Page 33: ...33 SX68JS10 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 CRT UNIT ...

Page 34: ...SX68JS10 34 MAIN UNIT 1 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 ...

Page 35: ...35 SX68JS10 10 11 12 13 14 15 16 17 18 19 ...

Page 36: ...SX68JS10 36 MAIN UNIT 2 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 ...

Page 37: ...37 SX68JS10 10 11 12 13 14 15 16 17 18 19 ...

Page 38: ...SX68JS10 38 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 POWER UNIT ...

Page 39: ...39 SX68JS10 10 11 12 13 14 15 16 17 18 19 ...

Page 40: ...SX68JS10 40 IGR UNIT A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 ...

Page 41: ...41 SX68JS10 M E M O ...

Page 42: ...SX68JS10 42 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 PRINTED WIRING BOARD ASSEMBLIES PWB A MAIN UNIT WIRING SIDE ...

Page 43: ...43 SX68JS10 10 11 12 13 14 15 16 17 18 19 ...

Page 44: ...SX68JS10 44 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 PWB A MAIN UNIT WIRING SIDE CHIP PARTS ...

Page 45: ...45 SX68JS10 10 11 12 13 14 15 16 17 18 19 ...

Page 46: ...SX68JS10 46 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 PWB B POWER UNIT ...

Page 47: ...47 SX68JS10 10 11 12 13 14 15 16 17 18 19 ...

Page 48: ...SX68JS10 48 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 PWB C CRT UNIT ...

Page 49: ...49 SX68JS10 PWB D IGR UNIT WIRING SIDE CHIP PARTS PWB D IGR UNIT WIRING SIDE A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 ...

Page 50: ...SX68JS10 50 M E M O ...

Page 51: ...1 R 2SB709A AA Q1304 VS2SD601A 1 R 2SD601A AC Q1305 VS2SD601A 1 R 2SD601A AC Q1306 VS2SB709A 1 R 2SB709A AA Q1307 VS2SD601A 1 R 2SD601A AC Q5400 VS2SD601A 1 R 2SD601A AC Q5401 VS2SB709A 1 R 2SB709A AA Q5402 VS2SD601A 1 R 2SD601A AC Q5403 VS2SD601A 1 R 2SD601A AC Q5404 VS2SD601A 1 R 2SD601A AC Q5405 VS2SB709A 1 R 2SB709A AA Q5406 VS2SD601A 1 R 2SD601A AC Q5408 VS2SB709A 1 R 2SB709A AA Q5409 VS2SD60...

Page 52: ... Ceramic AA C305 VCKYCY1HB102K R 1000p 50V Ceramic AA C306 VCKYCY1HB102K R 1000p 50V Ceramic AA C307 VCEA0A1CW106M R 10 16V Electrolytic AB C308 VCEA0A1CW106M R 10 16V Electrolytic AB Q5411 VS2SD601A 1 R SD601A AC DIODES AND LED S D200 RH EX0260TAZZ R Zener Diode AC D201 RH EX0260TAZZ R Zener Diode AC D202 RH EX0260TAZZ R Zener Diode AC D300 RH EX0615GEZZ R Zener Diode AA D301 RH EX0615GEZZ R Zene...

Page 53: ...CY1CF474Z R 0 47 16V Ceramic AB C806 VCEA0A1HW105M R 1 50V Electrolytic AB C807 VCEA0A1HW225M R 2 2 50V Electrolytic AB C309 VCEA0A1CW106M R 10 16V Electrolytic AB C310 VCEA0A1CW106M R 10 16V Electrolytic AB C311 VCEA0A1CW106M R 10 16V Electrolytic AB C312 VCEA0A1CW106M R 10 16V Electrolytic AB C313 VCEA0A1CW106M R 10 16V Electrolytic AB C314 VCEA0A1CW106M R 10 16V Electrolytic AB C315 VCEA0A1CW10...

Page 54: ... 0 01 50V Ceramic AA C5421 VCKYCY1HF103Z R 0 01 50V Ceramic AA C5422 VCEA0A0JW477M R 470 6 3V Electrolytic AC C5423 VCKYCY1HF103Z R 0 01 50V Ceramic AA C5424 VCCCCY1HH560J R 56p 50V Ceramic AA C808 VCEA0A1HW225M R 2 2 50V Electrolytic AB C809 RC EZ1217CEZZ R 470 16V Electrolytic AD C810 VCKYCY1HF103Z R 0 01 50V Ceramic AA C811 VCEA0A1HW474M R 0 47 50V Electrolytic AB C812 VCEA0A1CW106M R 10 16V El...

Page 55: ...AA R363 VRD RA2BE100J R 10 1 8W Carbon AA R365 VRS CY1JF102J R 1k 1 16W Metal Oxide AA R366 VRS CY1JF564J R 560k 1 16W Metal Oxide AA R367 VRS CY1JF561J R 560 1 16W Metal Oxide AA R368 VRD RA2BE100J R 10 1 8W Carbon AA C5425 VCCCCY1HH220J R 22p 50V Ceramic AA C5426 VCCCCY1HH220J R 22p 50V Ceramic AA C5427 VCEA0A1CW106M R 10 16V Electrolytic AB C5428 VCEA0A1HW106M R 10 50V Electrolytic AB C5429 VCK...

Page 56: ...100 1 16W Metal Oxide AA R455 VRS CY1JF102J R 1k 1 16W Metal Oxide AA R456 VRS CY1JF103J R 10k 1 16W Metal Oxide AA R457 VRS CY1JF223J R 22k 1 16W Metal Oxide AA R458 VRS CY1JF562J R 5 6k 1 16W Metal Oxide AA R459 VRD RM2HD680J R 68 1 2W Carbon AA R460 VRS CY1JF102J R 1k 1 16W Metal Oxide AA R461 VRS CY1JF471J R 470 1 16W Metal Oxide AA R462 VRS CY1JF471J R 470 1 16W Metal Oxide AA R463 VRS CY1JF1...

Page 57: ...16W Metal Oxide AA R1052 VRD RA2BE272J R 2 7k 1 8W Carbon AA R1053 VRS CY1JF392J R 3 9k 1 16W Metal Oxide AA R1054 VRS CY1JF223J R 22k 1 16W Metal Oxide AA R1055 VRS CY1JF101J R 100 1 16W Metal Oxide AA R1056 VRS CY1JF101J R 100 1 16W Metal Oxide AA R1057 VRS CY1JF471J R 470 1 16W Metal Oxide AA R1058 VRD RA2BE472J R 4 7k 1 8W Carbon AA R1059 VRS CY1JF473J R 47k 1 16W Metal Oxide AA R1060 VRS CY1J...

Page 58: ...04 VHSTF861S 1 R SI Control Rectifier AK Q700 VS2SC1815YW 1 R 2SC1815YW AC Q750 VS2SC1815GW 1 R 2SC1815GW AB Q751 VS2SC1815GW 1 R 2SC1815GW AB Q1500 VS2SC1815GW 1 R 2SC1815GW AB Q1600 VS2SC2482 1 R 2SC2482 AD Q1601 VS2SD2581 1E R 2SD2581 AL Q1602 VS2SA1015Y 1E R 2SA1015Y AC Q1603 VS2SD2045 1 R 2SD2045 AL Q1604 VS2SC1815GW 1 R 2SC1815GW AB Q1750 VS2SC1815GW 1 R 2SC1815GW AB Q1751 VS2SC1959Y 1E R 2S...

Page 59: ...8W Carbon AA C701 VCFYSB2EB224K R 0 22 250V M Polypro AD C702 RC EZ0689CEZZ R 680 400V Electrolytic BA C703 VCQPSC2JA333K R 0 033 630V Mylar AB C704 RC KZ0334CEZZ R 270 2kV Ceramic AK C705 RC KZ0057CEZZ R 1500p 2kV Ceramic AD C706 VCEAGA1HW107M R 100 50V Electrolytic AC C707 VCKYPA1HB101K R 100p 50V Ceramic AA C708 VCKYPA1HF103Z R 0 01 50V Ceramic AA C709 VCKYPA1HB471K R 470p 50V Ceramic AA å C710...

Page 60: ...ZZ R Balun BLN 0037CE AB FB753 RBLN 0037CEZZ R Balun BLN 0037CE AB FB754 RBLN 0037CEZZ R Balun BLN 0037CE AB FB755 RBLN 0037CEZZ R Balun BLN 0037CE AB FB756 RBLN 0037CEZZ R Balun BLN 0037CE AB FB757 RBLN 0037CEZZ R Balun BLN 0037CE AB FB758 RBLN 0037CEZZ R Balun BLN 0037CE AB FB759 RBLN 0037CEZZ R Balun BLN 0037CE AB FB1500 RBLN 0037CEZZ R Balun BLN 0037CE AB FB1600 RBLN 0037CEZZ R Balun BLN 0037C...

Page 61: ... 7 1 4W Carbon AA R3868 VRS VV3DB221J R 220 2W Metal Oxide AA BALUN FB3851 RBLN 0047CEZZ R Balun BLN 0047CE AB MISCELLANEOUS PARTS P3801 QPLGN0861CEZZ R Plug 8 Pin AC P3802 QPLGN0761CEZZ R Plug 7 Pin AD P3851 QPLGN0261CEZZ R Plug 2 Pin AB RDA3853 PRDAR0083PEFW R Heat Sink Q3853 AD RDA3854 PRDAR0083PEFW R Heat Sink Q3854 AD å SC3800 QSOCV0938CEZZ R Socket 12 Pin AK SC3803 QSOCZ0003CEZZ R Socket AD ...

Page 62: ... 2k 1 16W Metal Oxide AA BALUNES FB2302 RBLN 0062TAZZ R Balun BLN 0062TA AB FB2303 RBLN 0067CEZZ R Balun BLN 0067CE AC FB2304 RBLN 0067CEZZ R Balun BLN 0067CE AC MISCELLANEOUS PARTS P2300 QPLGZ0610CEZZ R Plug 6 Pin AB P2301 QPLGZ0810CEZZ R Plug 8 Pin AD SLD2301 PSLDM0260PEFW R Shield AD SLD2300 PSLDM0261PEFW R Shield AC MISCELLANEOUS PARTS å QACCL3025CESA J AC Cord AR QCNW 2326PEZZ R Connection Co...

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