Sanyo DP26649 - 26" LCD TV, Service Manual

Page 1: ...r only turn ON then OFF page 3 Green LED Light is ON and Backlights are ON but there is no video OSD page 4 Green LED Light turns ON but turns OFF within 10 seconds Please select the section page that matches your defect and follow the flow chart Only these models can use this guide DP26649 except DP26649 03 DP32649 except DP32649 05 DP42849 DP46819 DP46849 PLEASE KEEP THIS GUIDE IT WILL NOT BE PR...

Page 2: ...pplied see TABLE 1 no 0V Power Bd is not working Replace Power Bd Unplug K8B connector on Main Bd On Power Bd Is the 5V_STBY voltage supplied see TABLE 2 no 0V yes 5V Replace Main Bd and Wiring Harness yes 5V Green Power LED Does not turn on The TV is dead Confirm wire harness connections And confirm LED again On Main Signal Bd Is the 5V_STBY voltage on K8CTR 1Pin no 0V yes 5V While pushing the Po...

Page 3: ...in Confirmation Voltage 12 V 12 V Confirmation Voltage 24 V 42 00 ver 24V 42 01 ver 15V 46 16V Model Model 5V_STBY on Power Bd Confirmation Voltage US1J 26 32 Main K8B 12pin Main L1712 US1K 42 46 US1J 26 32 Main K8L 3pin Main R1754 3 3 V US1K 42 46 Main K8L 3pin Main R1829 3 3 V Model 5V_STBY on Power Bd Confirmation Voltage US1J 26 32 Main K8L 3pin Main R1754 3 3 V US1K 42 46 Main K8L 3pin Main R...

Page 4: ... 15V 46 16V Confirmation Voltage 12 V 12 V Model LVDS Clock on Main Bd Confirmation Voltage US1K 42 46 Main K5LVDS 36pin Main L6309 US1J 26 32 Main K5LV 29pin About 70MHz Clock US1K 42 46 Main K5LVDS 12pin About 70MHz Clock no 0V Replace Power Bd and Wire harness yes LCD Backlights are ON But TV has no video or OSD no 0V yes yes Main Bd is not working Replace Main Bd Main Bd is not working Replace...

Page 5: ...Main L1604 Model US1K 42 46 Main K8B 1pin Main R1600 Model 12V on Main Bd US1J 26 32 Main K8B 1pin Main R1702 On Main Bd Is 5V supplied to Power_SW during LED ON time see TABLE 1 no 0V Main Bd Is not working Replace Main Bd yes no 0V yes no Pwer Bd is not working Replace Power Bd and Wire Harness Inverter Bd Is not working Replace Inverter Bd Are 12V and 24V supplied from Pwer Bd during LED ON tim...

Page 6: ...94 95 135 CATV 1 135 DIGITAL REMOTE READY 32 KEY REMOTE CONTROL SOUND OUTPUT 5 0 W CH INTERMEDIATE FREQUENCY PICTURE IF CARRIER 45 75MHz SOUND IF CARRIER 41 25MHz COLOR SUB CARRIER 42 17MHz CABINET DIMENSIONS WIDTH 663mm HEIGHT 486mm DEPTH INCLUDING BASE 228mm REFERENCE No SM780158 DP26649 N7GE PRODUCT CODE 113020004 FILE NO SERVICE MANUAL Remote Control Digital Color Television DP26649 U S A CANA...

Page 7: ...test with the receiver power plug reversed NEVER RETURN A RECEIVER TO THE CUSTOMER WITHOUT TAKING THE NECESSARY CORRECTIVE ACTION PRODUCT SAFETY NOTICE When replacing components in a receiver always keep in mind the necessary product safety precautions Pay special attention to the replacement of components marked with a in the parts list and in the schematic diagrams To ensure safe product operati...

Page 8: ...w appear The remote can now be used to make adjustments See Figure 1 below 2 Service Adjustments Press the Cursor L or M key to select the desired service menu item you want to adjust See page 4 for the On screen Service Menu Use the Cursor or key to adjust the data The or key will increase or decrease the data sequentially 3 Exit from the Service Menu Press the MENU key to turn off the Service Me...

Page 9: ... 00 See 087 above If this program code is wrong the TV will not operate properly Note 2 Option Data 2 NO 088 OP2 should be hexadeci mal 08 See 088 above If this program code is wrong the TV will not operate properly No Title Initial Data Note 1A0 MUTE A0h Audio mute at Power ON 086 VOL 30h Volume setup inspection 087 OP1 00h Option 1 Data TV Guide HOTEL mode 088 OP2 08h Option 2 Data Display Panel...

Page 10: ...s described below Refer to Block Diagram Power Lines This unit is equipped with a Power Failure Detector function included in the SUB CPU which checks for an abnormal condition in the chassis power supplies If while the power is on a failure is caused by any of the following that results in a low voltage supply the SUB CPU will turn the unit off in 1 5 seconds to prevent further damage Failure wit...

Page 11: ...1 BACK LID REMOVAL Remove 2 screws to take the back Lid off A 3x6 A Back Lid 2 STAND REMOVAL Position TV face down on a padded or cushioned surface to protect the screen and finish Remove 4 screws B 6X16 to take the stand off 3 MAIN BOARD REMOVAL Remove 5 screws C 3X14 to take the main board off 4 POWER UNIT REMOVAL Remove 6 screws C 3X14 to take the power unit off B B Main Board Power Unit C C C ...

Page 12: ...dling techniques as described under Servicing Electrostatically Sensitive Devices on page two in this service literature 6 LCD PANEL RMOVAL Lift up the LCD panel from front cabinet 7 SPEAKER REMOVAL Remove 2 screws E 3x14 to take off each speaker C C D D C D C C C C C C C D E E 8 RC LED BOARD REMOVAL Rremove 1 screw C 3x14 to take the RC LED board off RC LED Board C C KEY SW Board 9 KEY SW BOARD R...

Page 13: ...RAM DESIGNATE COMPONENTS IN WHICH SAFETY CAN BE OF SPECIAL SIGNIFICANCE IT IS PARTICULARLY RECOMMENDED THAT ONLY PARTS DESIGNATED ON THE FOLLOWING PARTS LIST BE USED FOR COMPONENT REPLACE MENT DESIGNATED BY A NO DEVIATIONS FROM RESISTANCE WATTAGE AND VOLTAGE RATINGS MAY BE MADE FOR REPLACEMENT ITEMS DESIGNATED BY A Schematic Location Part No Description Schematic Location Part No Description Note ...

Page 14: ...G CERAMIC 0 01U K 50V C1602 CEXLB1V471VDJ ELECT 470U M 35V C1603 CK1H103KLZBNG CERAMIC 0 01U K 50V C1604 CK1H103KLZBNG CERAMIC 0 01U K 50V C1605 CK1H103KLZBNG CERAMIC 0 01U K 50V C1606 CK1A105KLZBNG CERAMIC 1U K 10V C1607 CEXLB0J102VDJ ELECT 1000U M 6 3V C1608 CK1H104ZLZFNG CERAMIC 0 1U Z 50V C1609 CK1H104KLZBNG CERAMIC 0 1U K 50V C1611 CK1H104ZLZFNG CERAMIC 0 1U Z 50V C1612 CK1H104ZLZFNG CERAMIC ...

Page 15: ...C5569 CK0J475KLZBNG CERAMIC 4 7U K 6 3V C5570 CK1H104ZLZFNG CERAMIC 0 1U Z 50V C5572 CK0J475KLZBNG CERAMIC 4 7U K 6 3V C5574 CK0J475KLZBNG CERAMIC 4 7U K 6 3V C5575 CK1H104ZLZFNG CERAMIC 0 1U Z 50V C5576 CK1H104ZLZFNG CERAMIC 0 1U Z 50V C5577 CK1A105KLZBNG CERAMIC 1U K 10V C5578 CK0J475KLZBNG CERAMIC 4 7U K 6 3V C5580 CK1E474KLZBNG CERAMIC 0 47U K 25V C5581 CK1E224KLZBNG CERAMIC 0 22U K 25V C5583 ...

Page 16: ...U M 35V C6252 CK1H104ZLZFNG CERAMIC 0 1U Z 50V C6253 CK0J475KLZBNG CERAMIC 4 7U K 6 3V C6254 CK0J475KLZBNG CERAMIC 4 7U K 6 3V C6255 CK0J475KLZBNG CERAMIC 4 7U K 6 3V C6270 CK0J475KLZBNG CERAMIC 4 7U K 6 3V C6271 CEXLB1V470VEJ ELECT 47U M 35V C6272 CK1H104ZLZFNG CERAMIC 0 1U Z 50V C6273 CK0J475KLZBNG CERAMIC 4 7U K 6 3V C6274 CK0J475KLZBNG CERAMIC 4 7U K 6 3V C6275 CK0J475KLZBNG CERAMIC 4 7U K 6 3...

Page 17: ...0 ZA 1 10W L1683 RGFR000ZTAANL MT GLAZE 0 000 ZA 1 10W L1684 RGFR000ZTAANL MT GLAZE 0 000 ZA 1 10W L1685 RGFR000ZTAANL MT GLAZE 0 000 ZA 1 10W L1688 RGFR000ZTAANL MT GLAZE 0 000 ZA 1 10W L1689 RGFR000ZTAANL MT GLAZE 0 000 ZA 1 10W L1690 RGFR000ZTAANL MT GLAZE 0 000 ZA 1 10W L1700 RGFR000ZTAANL MT GLAZE 0 000 ZA 1 10W L1703 RGFR000ZTAANL MT GLAZE 0 000 ZA 1 10W L1705 RGFR000ZTAANL MT GLAZE 0 000 ZA...

Page 18: ...006 P TR MMBTSC3928R T2SC3928A1R P TR 2SC3928A1R T2SC3928A1S P TR 2SC3928A1S Q2401 TXXLBB006 P TR MMBTSC3928R T2SC3928A1R P TR 2SC3928A1R T2SC3928A1S P TR 2SC3928A1S Q2402 TXXLBB006 P TR MMBTSC3928R T2SC3928A1R P TR 2SC3928A1R T2SC3928A1S P TR 2SC3928A1S Q5800 TXXLBB005 P TR MMBTSA1235F TISA1235AC1EP TR ISA1235AC1E TISA1235AC1FP TR ISA1235AC1F Q5801 TXXLBB005 P TR MMBTSA1235F TISA1235AC1EP TR ISA1...

Page 19: ...4 RGF4702JTCANL MT GLAZE 47K JA 1 10W R897 RGF4702JTCANL MT GLAZE 47K JA 1 10W R898 RGFR000ZTCANL MT GLAZE 0 000 ZA 1 10W R899 RGF1000JTCANL MT GLAZE 100 JA 1 10W R900 RGF1000JTCANL MT GLAZE 100 JA 1 10W R901 RGF1000JTCANL MT GLAZE 100 JA 1 10W R902 RGF1000JTCANL MT GLAZE 100 JA 1 10W R903 RGF1002JTCANL MT GLAZE 10K JA 1 10W R905 RGF1003JTCANL MT GLAZE 100K JA 1 10W R908 RGFR000ZTCANL MT GLAZE 0 0...

Page 20: ...E 47 JA 1 10W R2426 RGF47R0JTCANL MT GLAZE 47 JA 1 10W R2427 RGF3303JTCANL MT GLAZE 330K JA 1 10W R2428 RGF3303JTCANL MT GLAZE 330K JA 1 10W R2432 RGF1002JTCANL MT GLAZE 10K JA 1 10W R2433 RGF1002JTCANL MT GLAZE 10K JA 1 10W R2437 RGFR000ZTCANL MT GLAZE 0 000 ZA 1 10W R2440 RGFR000ZTCANL MT GLAZE 0 000 ZA 1 10W R2442 RGF1000JTCANL MT GLAZE 100 JA 1 10W R2447 RGFR000ZTCANL MT GLAZE 0 000 ZA 1 10W R...

Page 21: ...5R0JTCANL MT GLAZE 75 JA 1 10W R5650 RGF10R0JTCANL MT GLAZE 10 JA 1 10W R5651 RGF10R0JTCANL MT GLAZE 10 JA 1 10W R5652 RGF10R0JTCANL MT GLAZE 10 JA 1 10W R5653 RGFR000ZTCANL MT GLAZE 0 000 ZA 1 10W R5654 RGFR000ZTCANL MT GLAZE 0 000 ZA 1 10W R5655 RGFR000ZTCANL MT GLAZE 0 000 ZA 1 10W R5659 RGF75R0JTCANL MT GLAZE 75 JA 1 10W R5660 RGF75R0JTCANL MT GLAZE 75 JA 1 10W R5661 RGF75R0JTCANL MT GLAZE 75 ...

Page 22: ... 10W R6517 RGF2201JTCANL MT GLAZE 2 2K JA 1 10W R6520 RGF2201JTCANL MT GLAZE 2 2K JA 1 10W R6550 RGF2202JTCANL MT GLAZE 22K JA 1 10W R6551 RGF47R0JTCANL MT GLAZE 47 JA 1 10W R6552 RGFR000ZTCANL MT GLAZE 0 000 ZA 1 10W R6553 RGF4702JTCANL MT GLAZE 47K JA 1 10W R6554 RGF4702JTCANL MT GLAZE 47K JA 1 10W R6555 RGF1001JTCANL MT GLAZE 1K JA 1 10W R6556 RGF1002JTCANL MT GLAZE 10K JA 1 10W R6557 RGF47R0JT...

Page 23: ...13P K8CTRA 1AV4J10AU035N PLUG 3P K8FRA 1AV4J10EA063N PLUG 6P K8L 1AV4J10AU055N PLUG 5P KSP 1AV4J10EA043N PLUG 4P KUSB 1LB4J11B0550N SOCKET USB 4P K5LV 1AV4J10XE300G PLUG 30P K6500 1AV4J11B8591G SOCKET IF HDMI 19P K6550 1AV4J11B8591G SOCKET IF HDMI 19P K19CTRA 1AV4J10AV033N PLUG 3P K39K 1AV4J10EA063N PLUG 6P PB001 1LG4B10Y03000 PWB MAIN N7BE PB1900 1AA4B10N23200 PWB CONTROL X16 N7AE PB3900 1AA4B10N...

Page 24: ...3313 R5807 C3314 R5614 R5808 IC025 C3315 R5615 R5809 C3316 R5616 C3317 R5617 C3318 R5618 C3319 R5619 R5810 R5811 L5501 R5812 L1683 C3320 R5620 R5814 1 49 64 16 32 17 33 48 IC800 L1685 C3321 R5621 L5505 C6201 IC801 L1686 C3322 R5816 L5506 C6202 IC802 L1687 L5507 5 8 1 4 IC803 R5624 L1688 R5818 C6204 D3300 R5625 L1689 R5819 L5509 C6205 R5626 R3300 C5651 R5629 C1001 R3301 C5652 C1002 R3302 C5653 C100...

Page 25: ...5604 C3305 R5606 C3306 R5611 L1676 L1677 R5613 L1678 L1679 L5500 CL05 CL06 L1682 L5502 C5647 CL07 R5813 L5503 C5648 L1684 L5504 C5649 CL09 R5815 R5622 R5623 R5817 L5508 R5627 C5650 R5628 CL11 C6209 CL12 CL13 L1691 CL15 R5821 R5822 L5512 R5823 L5513 C6210 R5632 R5633 R5827 L5517 R5828 L5518 R5635 R5829 C1011 C1012 C1013 C1014 R5830 R5832 R5833 R5640 R5642 R5836 R5643 R5837 R5644 R5646 R5647 R5648 R...

Page 26: ...3PIN 8PIN L1901 1 6 K19KA 1 3 K19CTRA 1 8 K19CTR SW1901 SW1902 SW1903 SW1904 SW1905 1 6 K19K A30C5 CONTROL BOARD SOLDER SIDE PWB RC_LED PART SIDE PWB RC_LED N7AE 1AA4B10N2320B D3900 K39K 1 6 K39KA 1 6 Q3901 A3900 A30C5 PWB RC_LED N7AE 1AA4B10N2320B D3900 K39K 1 6 K39KA 1 6 Q 3 9 0 1 A3900 R3904 R3911 C3907 R3909 R3908 R3910 R3905 R3912 R3903 R3901 R3900 R3907 R3902 D3903 C3902 D3905 D3901 C3904 D3...

Page 27: ...649 3 2 4 3 4 REG_SW1N Q1610 IC1620 2 1 6 REG_SW4 D5V D3 3V D1 1V_ZR 5V_USB D1 8V_DDR IC6700 12V_ANALOG LVDS_POW AUDIO_POW 14V 9V D1670 D1684 8 9 7 12 13 5 1 2 Q1680 Audio Amp IC1680 IC001 5V D1682 3 3V 3 3V_HDMI 3 3V_USB 3 3V_ZR 3 2 4 IC1670 2 3 4 5 3 IC1640 3 1 IC1690 IC800 49pin LVDS_SW USB1_PEN_N Q6301 6303 Q6304 IC6600 LCD Panel USB LINE_OFF LINE_OFF BL_ON BL_SW BL_ADJ Q1751 REG_SW3N BLOCK DI...

Page 28: ...F11 L 7 R 1 25 31 42 36 7 3 1 SUB_CPU P22 N22 EEPROM RC_IN KEY_IN LED_ON1 M_MUTE Front Control Control Power Unit AC in 120V Line Output AMP L R Speaker SW HDMI1 Y Pb Pr NTSC RESET MUTE MUTE SP_MUTE D_M_MUTE Digital Audio Output USB DC HDMI2 IC6270 IC6600 IC025 IC5900 IC803 IC800 IC5750 IC5700 IC5500 IC6250 IC905 IC001 SW PC R PC G PC B PC L R ADC 17 Q805 21 IC5500 AC14 IC5500 AB11 IC800 22 PC_LED...

Page 29: ... 24 IC BLOCK DIAGRAMS IC001 Audio AMP ...

Page 30: ... 25 IC1670 Voltage Regulator IC803 EEPROM IC BLOCK DIAGRAMS CONT ...

Page 31: ... 26 IC1680 DC to DC Regulator IC1600 DC to DC Converter ...

Page 32: ... 27 IC5500 Video Processing IC BLOCK DIAGRAMS CONT ...

Page 33: ... 28 IC6600 USB protection IC6270 Low output Amplifier ...

Page 34: ... 29 IC5700 DDR Double Data Rate SDRAM IC BLOCK DIAGRAMS CONT ...

Page 35: ...cuit No All 0V except 5V_STBY line Is the voltage to all lines supplied Is the voltage to 5V_STBY line supplied Is fuse open Check arround CPU IC800 IC IC803 Crystal X801 Power Unit Check Power Unit Check Power Unit Diod Detected Voltage Diod Detected Voltage D1670 9V Power Failure Line CPU IC800 48pin D1620 D1621 D3 3V D1641 5V D1684 AUDIO_POW LVDS_POW D1682 CPU IC800 23pin ...

Page 36: ...V2 only Terminal Y IC5500 AD15pin Y Terminal Pb IC5500 AE8pin Pb Terminal Pr IC5500 AD11pin Pr Parts Around IC5500 AV3 only Component 480i 480p 720p 1080i Component 480i 480p 720p 1080i Check Line IC5500 LCD Panel RGB Parts Around IC5500 Screen Controller LCD Panel Wire K5LVDS To LCD Panel HDMI 1 2 3 only HDMI1 Terminal IC5500 HDMI2 Terminal IC5500 HDMI3 Terminal IC5500 Parts Around IC5500 Check L...

Page 37: ...4pin L 5pin R AV2 Terminal IC1200 15pin L 2pin R AV3 Terminal IC1200 11pin L 4pin R PC Terminal IC1200 12pin L 1pin R AV1 AV2 AV3 PC only IC1200 3pin IC6270 14pin R IC1200 13pin IC6270 13pin L Parts Around IC1200 Audio SW IC6270 Audio ADC Monitor Out only Line Line Check Line Check Line Check Line IC6300 1pin L Monitor Out Terminal IC6300 7pin R Monitor Out Terminal Parts Q1001 Q1002 AV1 or AV2or ...

Page 38: ...IN Power Fail 2 IN IN LVDS Power Fail input for LCD model no used at PDP model Setting output mode 24 P25 INT5 T1IN AMP STBY OUT AMP Standby control Stanby Low Power on High 25 P26 INT5 T1IN HS DET IN Detect H Sync Detect High PC Input 26 P27 INT5 T1IN VS DET IN Detect V Sync Detect High PC Input 27 PB7 RESET TV OUT for DM Watch Dog Timer 28 PB6 Boot SEL1 OUT Starting DM S W download SEL1 See Tabl...

Page 39: ...mer 55 XT2 Xout OUT 32 678KHz X tal output for clock timer 56 VSS1 Vss IN GND 0Vdc 57 CF1 AN12 Xti IN Main clock input 8MHz ceramic oscillator 58 CF2 AN13 Xto OUT Main clock output 8MHz ceramic oscillator 59 VDD1 Power IN IN VDD1 5Vdc 10 60 AN0 Key in IN Panel switch input 61 AN1 Reserve IN GND 62 P82 PANEL READY IN Panel Ready for PDP OK High NG Low only PDP 63 P10 VS ON OUT VS ON for PDP ON High...

Page 40: ...i o Processing Unit IR UART Vcc con t Remote Back Light con t BLON Video2 Audio A EEPROM LVDS Out Pan el Unit LVDS Video data Clk VBL cont 12 24V 12 5 3 3V Digital Analog Tu ner RF IN I 2 C S Detect Back Light level PW M Key Switch RS 232C Video2 Component Video3 Component HDMI1 or DVI HDMI2 or DVI L R Audio Cnt Audio ADC Power L ED VBS DEMOD ADC I 2 C I 2 C I 2 C DDR2 512Mbit 400MHz PC Audio A PC...

Page 41: ...than 1 are in pF 5 All capacitors are 50 WV rating unless oterhwise noted 6 Unless otherwise noted on schematic voltage reading taken with VOM from point indicated to chassis ground Voltage reading taken using color bar signal VHF channel 5 all controls at normal Line voltage at 120 volts Some voltages may vary with signal strength 7 Waveforms were taken with color bar signal and controls set for ...

Page 42: ... 37 IC DIODE AND TRANSISTOR PIN LAYOUTS ...

Page 43: ...F D3900 1 2 3 X C3903 1 10GZ0C R3902 K39K_1 K39K_G X D3906 GND X C3901 6 3KK10GMB C3904 U20C11701 A3900 5 1 4 2 3 K39K_6 GND 1 10GZ0C R3910 1 10GJ220KC R3900 KZ0 1LZF C3902 X K39KA 1 2 3 4 5 6 1 10GJ22KC R3904 X C3906 K39K_4 GA1A2S100LY Q3901 1 2 3 X C3907 1 10GJ220C R3908 KZ0 1LZF D1901 GND K19CTR_1 K19CTR_4 GND X L1901 K19KA X 1 2 3 4 5 6 X L1903 S10B0722J SW1904 1 2 2 S10B0722J SW1905 1 2 2 X D...

Page 44: ...lypropylene T Tantalum K Ceramic H MT Composite P NP Electrolytic M MT Polypropylene RESISTOR Example 6 Y K 4 7 D 0 5 F 1 G 2 J 5 Value code K 10 Tolerance code M 20 Material code F Fusible Wattage rating N Metalized Carbon S Oxide Metalized Y Wire Wound C Solid D Carbon Film W Wire Wound May 2009 SMC Published in Mexico For parts or service contact Sanyo Manufacturing Corporation P O Box 2000 333...

Page 45: ...0KC R1017 9V X R1012 1 10GJ 100C R1020 1 10GJ 100C R1021 X R1013 1 10GJ 220KC R1019 1 10GJ 150KC R1018 9V 2SC3928A1RP Q1002 2SC3928A1SP TXXLBB006P 1 10GJ 220KC R1045 2SC3928A1RP Q1004 2SC3928A1SP TXXLBB006P 1 10GJ 150KC R1044 AV2_R X R1035 9V 9V X R1034 2SC3928A1RP Q1003 2SC3928A1SP TXXLBB006P AV2_L 1 10GJ 150KC R1042 1 10GJ 220KC R1043 9V X R1036 2SC3928A1RP Q1005 2SC3928A1SP TXXLBB006P 1 10GJ 15...

Page 46: ...8 434 F19 435 F20 436 F21 437 G21 438 H21 439 J21 440 K21 441 L21 442 M21 443 N21 444 P21 445 R21 446 T21 447 U21 448 V21 449 W21 450 Y21 451 AA21 452 AA20 453 AA19 454 AA18 455 AA17 456 AA16 457 AA15 458 AA14 459 AA13 460 AA12 461 AA11 462 AA10 463 AA9 464 AA8 465 AA7 466 AA6 467 Y6 468 W6 469 V6 470 U6 471 T6 472 R6 473 P6 474 N6 475 M6 476 L6 477 K6 478 J6 479 H6 480 G6 481 G7 482 G8 483 G9 484...