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Sanyo DP26649 Service Manual

Remote control digital color television.
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TROUBLESHOOTING GUIDE
(ONLY FOR 2009 MODELS)
This guide is divided into 4 sections/pages depending on type of defect:
page 1) No Green LED Power Light (LED never turns "ON")
page 2) Green LED Light is "ON", but Backlights are not "ON", or 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
IT WILL NOT BE PROVIDED FOR EVERY REPAIR.
techsupport@sanyotv.com
SANYO
PLEASE KEEP THIS GUIDE.
09/24/10
2009-2A

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Troubleshooting

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   Summary of Contents for Sanyo DP26649

  • Page 1: Troubleshooting Guide

    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...

  • Page 2

    Repair Flow Chart: Trouble Condition page 1 Green Power LED does NOT turn on. The TV is Dead. Green Power LED: Does not turn on. The TV is dead. On Main Signal Bd.: no: 0V Is the "5V_STBY" voltage supplied? (see TABLE *1) Unplug (K8B) connector on Main Bd.

  • Page 3

    Repair Flow Chart: Trouble Condition page 2 Green Power LED is on, but LCD backlights are not on. Backlights are off, or only turn on and back off. Power LED turns on. But, LCD Backlight is not on. On Main Bd.: On Main Bd.: no: 0V Are the 12V and 24V supplied from...

  • Page 4

    Repair Flow Chart: Trouble Condition page 3 Green Power LED and LCD backlights are on, but no video or OSD. LCD Backlights are ON. But, TV has no video or OSD. On Main Bd.: Are the 12V and 24V supplied no: 0V from Pwer Bd.? (see TABLE*1)

  • Page 5

    Repair Flow Chart: Trouble Condition page 4 Power LED turns OFF within 10 sec of Power ON. Power LED turns OFF within 10 sec of Power ON. On Main Bd.: no: 0V Is 5V supplied to "Power_SW" during LED ON time? (see TABLE*1) Main Bd.

  • Page 6: Table Of Contents

    HEIGHT ....... 486mm DEPTH INCLUDING BASE ....228mm DP26649, N7GE, PRODUCT CODE 113020004 REFERENCE No.

  • Page 7: Safety Instructions

    SAFETY INSTRUCTIONS SAFETY PRECAUTIONS WARNING: The chassis of this receiver has a floating ground with the potential of one half the AC line voltage in respect to earth ground. Service should not be attempted by anyone not familiar with the precautions necessary when working on this type of equipment.

  • Page 8: Service Adjustments

    SERVICE ADJUSTMENTS GENERAL This set has an On-screen Service Menu system included – : Volume in the CPU that allows remote operation for most of the Enter Service Menu service adjustments. ON-SCREEN SERVICE MENU SYSTEM 1. Enter the Service Menu: •...

  • Page 9: On-screen Service Menu

    ON-SCREEN SERVICE MENU Table 1. ON-SCREEN SERVICE MENU When IC803 (EEPROM) is replaced, check the bus data to confirm they are the same as below. See page 3 for On-Screen Service Menu access and adjustments. Title Initial Data Note MUTE Audio mute at Power ON Volume setup inspection Option 1 Data (TV Guide/HOTEL mode)

  • Page 10: Power Failure Circuit

    POWER FAILURE CIRCUIT Check the following if the unit is turned off by the power SUB-CPU (IC800) is programmed so the set will go to stand- failure detector. by mode when there is circuit failure as described below. (Refer to“Block Diagram Power Lines”.) 1.

  • Page 11: Mechanical Disassembly

    MECHANICAL DISASSEMBLY CAUTION: This LCD TV uses several different kinds of screws. Using the correct screw is necessary to prevent damage. Lead wires must be redressed to their previous locations after servicing. Back Lid 1. BACK LID REMOVAL Remove 2 screws to take the back Lid off. (A: 3x6) 2.

  • Page 12

    ELECTROSTATICALLY SENSITIVE DEVICES Many solid-state devices (especially Integrated Circuits) are Electrostatically Sensitive, and, therefore, require special handling techniques as described under “Servicing Electrostatically Sensitive Devices,” on page two in this service literature. 5. BACK CABINET REMOVAL Remove 14 screws to take the back cabinet off. (C: 3x14, 10 pcs;...

  • Page 13: Chassis Electrical Parts List

    CHASSIS ELECTRICAL PARTS LIST CAUTION: To Protect against electrical shock and for continued product safety, refer to SAFETY PRECAUTIONS and PRODUCT SAFETY NOTICE on Page 2. PRODUCT SAFETY NOTICE PRODUCT SAFETY SHOULD BE CONSIDERED WHEN A REPLACEMENT IS MADE IN ANY AREA OF A RECEIVER. COMPONENTS INDICATED BY A IN THIS PARTS LIST AND THE SCHEMATIC DIAGRAM DESIGNATE COMPONENTS IN WHICH SAFETY CAN BE OF SPECIAL SIGNIFICANCE.

  • Page 14

    Schematic Schematic Part No. Part No. Description Description Location Location C C A A P P A A C C I I T T O O R R S S C1603 CK1H103KLZBNG CERAMIC 0.01U K C1604 CK1H103KLZBNG CERAMIC 0.01U K C016 CK1E105KGMBNG CERAMIC...

  • Page 15

    Schematic Schematic Part No. Part No. Description Description Location Location C5512 CK1H104ZLZFNG CERAMIC 0.1U Z C5575 CK1H104ZLZFNG CERAMIC 0.1U Z C5576 CK1H104ZLZFNG CERAMIC 0.1U Z C5513 CK1H104KLZBNG CERAMIC 0.1U K C5577 CK1A105KLZBNG CERAMIC 1U K C5515 CK1H104ZLZFNG CERAMIC 0.1U Z C5516 CK1H104ZLZFNG CERAMIC...

  • Page 16

    Schematic Schematic Part No. Part No. Description Description Location Location C5655 CC1H221JLZCNG CERAMIC 220P J C6274 CK0J475KLZBNG CERAMIC 4.7U K 6.3V C5700 CK1A105KLZBNG CERAMIC 1U K C6275 CK0J475KLZBNG CERAMIC 4.7U K 6.3V C5701 CK1H104ZLZFNG CERAMIC 0.1U Z C6300 CK1H104ZLZFNG CERAMIC 0.1U Z C5702 CK1A105KLZBNG...

  • Page 17

    Schematic Schematic Part No. Part No. Description Description Location Location I I N N T T E E G G R R A A T T E E D D C C I I R R C C U U I I T T S S L1682 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W...

  • Page 18

    Schematic Schematic Part No. Part No. Description Description Location Location Q2401 TXXLBB006—-P TR MMBTSC3928R L6550 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W L6700 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W T2SC3928A1R-P TR 2SC3928A1R L6702 1LB4L26B0740G “INDUCTOR ,220 OHM” T2SC3928A1S-P TR 2SC3928A1S L6705 1LB4L26B0740G “INDUCTOR ,220 OHM” Q2402 TXXLBB006—-P TR MMBTSC3928R...

  • Page 19

    Schematic Schematic Part No. Part No. Description Description Location Location R807 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R899 RGF1000JTCANL MT-GLAZE 100 JA 1/10W R808 RGF1000JTCANL MT-GLAZE 100 JA 1/10W R900 RGF1000JTCANL MT-GLAZE 100 JA 1/10W R809 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R901 RGF1000JTCANL MT-GLAZE...

  • Page 20

    Schematic Schematic Part No. Part No. Description Description Location Location R1621 RGF12R0JTCANL MT-GLAZE 12 JA 1/10W R2432 RGF1002JTCANL MT-GLAZE 10K JA 1/10W R1622 RGF2200FTCANL MT-GLAZE 220 FA 1/10W R2433 RGF1002JTCANL MT-GLAZE 10K JA 1/10W R1641 RGF1000JTCANL MT-GLAZE 100 JA 1/10W R2437 RGFR000ZTCANL MT-GLAZE...

  • Page 21

    Schematic Schematic Part No. Part No. Description Description Location Location R5560 RGF8200FTCANL MT-GLAZE 820 FA 1/10W R5653 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R5561 RGF8200FTCANL MT-GLAZE 820 FA 1/10W R5654 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R5562 RGF27R0JTCANL MT-GLAZE 27 JA 1/10W R5655 RGFR000ZTCANL MT-GLAZE...

  • Page 22

    Schematic Schematic Part No. Part No. Description Description Location Location R6251 RGF5601JTCANL MT-GLAZE 5.6K JA 1/10W R6565 RGF4R70JTCANL MT-GLAZE 4.7 JA 1/10W R6252 RGF2202JTCANL MT-GLAZE 22K JA 1/10W R6566 RGF4R70JTCANL MT-GLAZE 4.7 JA 1/10W R6253 RGF6802JTCANL MT-GLAZE 68K JA 1/10W R6567 RGF4R70JTCANL MT-GLAZE...

  • Page 23

    Schematic Schematic Part No. Part No. Description Description Location Location M M I I S S C C E E L L L L A A N N E E O O U U S S P P O O W W E E R R B B O O A A R R D D A3900 1AV4U20C11701 “UNIT,REMOCON RECEIVER”...

  • Page 24: Component And Testpoint Locations

    COMPONENT AND TESTPOINT LOCATIONS MAIN BOARD PARTS SIDE L1640 R1660 R1661 CL14 C1641 C1680 1LG4B10Y03000 A C1645 K1003 PWB.MAIN.N7BE IC1640 C1644 CL03 *** ??? C1000 IC1670 R1643 D1640 C1647 R1702 C1652 IC1680 L1725 D1680 L1726 K1004 IC1650 L1641 C1654 L1705 C1682 L1642 L1706...

  • Page 25

    MAIN BOARD SOLDER SIDE 1LG4B10Y03000 A R1640 R1689 R1641 PWB.MAIN.N7BE R1002 Q1680 *** ??? C1680 SC1001 C1000 R1642 C1642 R1680 R1683 R1644 C1670 R1681 L1691 R1010 R1645 R1009 R1011 SC1002 C1647 R1000 L1650 D1682 D1683 L1684 C1650 C1687 C1682 L1678 C6750 R1699 C1684...

  • Page 26

    CONTROL BOARD PART SIDE SW1901 SW1902 SW1903 SW1904 SW1905 POWER VOL.+ VOL.- CH.+ CH.- PWB,KEY_SW N7AE L1901 1AA4B10N2320A A30C5 K19CTRA K19CTR (3PIN) (8PIN) CONTROL BOARD SOLDER SIDE SW1902 SW1905 SW1904 SW1903 SW1901 L1901 PWB,KEY_SW N7AE 1AA4B10N2320A K19CTRA (3PIN) A30C5 K19CTR (8PIN) PWB RC_LED PART SIDE PWB RC_LED SOLDER SIDE...

  • Page 27: Block Diagram Power Lines

    BLOCK DIAGRAM POWER LINES – 22 –...

  • Page 28: Block Diagram Signal Lines

    BLOCK DIAGRAM SIGNAL LINES – 23 –...

  • Page 29: Ic Block Diagrams

    IC BLOCK DIAGRAMS IC001, Audio AMP – 24 –...

  • Page 30

    IC BLOCK DIAGRAMS (CONT.) IC1670 Voltage Regulator IC803 EEPROM – 25 –...

  • Page 31

    IC1680 DC to DC Regulator IC1600, DC to DC Converter – 26 –...

  • Page 32

    IC BLOCK DIAGRAMS (CONT.) IC5500 Video Processing – 27 –...

  • Page 33

    IC6270, Low output Amplifier IC6600, USB protection – 28 –...

  • Page 34

    IC BLOCK DIAGRAMS (CONT.) IC5700, DDR: Double Data Rate SDRAM – 29 –...

  • Page 35: Troubleshooting Flow Charts

    TROUBLESHOOTING FLOW CHARTS NO POWER Check: Power Unit fuse open? the voltage Check: Power Unit to "5V_STBY" line supplied? All 0V (except '5V_STBY' line) the voltage to all lines Check: arround supplied? CPU (IC800), IC (IC803), Crystal (X801), Power Unit (or the voltage to some lines is not supplied.) After a few seconds, the set will be switched off.

  • Page 36

    TROUBLESHOOTING FLOW CHARTS (continued) NO AUDIO Check: RF(TV) ,Digital(TV) All Inputs? Line: A6100 21pin - IC5500 AA17pin A6100 20pin - IC5500 AA18pin only Parts: Around A6100 (TU_IF), IC5500 Check: AV1 only Line: Terminal(CV) - Q5802,5806 - IC5500 AD19pin Terminal(Y) - Q5803,5807 - IC5500 AB14pin Terminal(C) - Q5804,5808 - IC5500 AB10pin Parts: Around IC5500 Check:...

  • Page 37

    TROUBLESHOOTING FLOW CHARTS (continued) NO VIDEO Is there Check: All Modes ? signal at speaker Speaker (SP901, SP902) terminal ? Is there Check: signal at IC001 7pin (L) Line: IC001 1pin - IC800 (CPU) 22pin (Mute) or 3pin (R) ? Parts: Around IC001 (Audio AMP.) Check: Parts: Around IC6250 (DAC)

  • Page 38: Control Port Functions

    CONTROL PORT FUNCTIONS System Control (SUB CPU : 801) IC specification Assignment Explanation P12/SCK0 REG SW4 REG SW4 (ON : High OFF : Low) P13/SO1 REG SW5 REG SW5 (ON : Low OFF : High) P14/SI1/SB1 IIC-BUS for NV Data of IIC Bus Active ‘L’ for IIC data NV P15/SCK1 IIC-BUS for NV Clock of IIC Bus Active ‘L’...

  • Page 39

    IC specification Assignment Explanation P72/INT2/T0IN CEC output CEC output P73/INT3/T0IN Rcin Remote control signal input RESET in CPU Reset input RESET : Low (and for on-board write) 32.678KHz X’tal input (for clock timer) Xout 32.678KHz X’tal output (for clock timer) VSS1 GND (0Vdc) CF1/AN12...

  • Page 40: Zoran 772 Periphericals

    Zoran 772 Periphericals DDR2 Nand Flash 512Mbit (128Mbit) (400MHz) (D -Sub) Vi deo2 (Component) MPEG2 DEMUX Video Decode Vi deo3 (Component) RS -232C HD MI1 (or DVI) Clock HDMI Sca ler HD MI2 (25MHz) (MIPS) (or DVI) RE SE T Audi o NTSC Pr oc essing...

  • Page 41: Schematic Notes

    SCHEMATIC NOTES NOTES ON SCHEMATIC DIAGRAMS 1. All resistance values in ohms K=1,000 M=1,000,000. 2. Resistors specified with resistance value are “1/6DJ.” 3. Resistors specified with type of resistor, tolerence and resistance value are “1/4.” 4. Unless otherwise noted on schematic, all capacitor values less than 1 are expressed in μF (Micro Farad), and the values more than 1 are in pF.

  • Page 42: Ic, Diode, And Transistor Pin Layouts

    IC, DIODE, AND TRANSISTOR PIN LAYOUTS – 37 –...

  • Page 43: Pc Board Connections And Locations

    PC BOARD CONNECTIONS AND LOCATIONS – 38 –...

  • Page 44: Capacitor And Resistor Code Chart

    S ......Oxide Metalized Y ......Wire Wound C ......Solid D ......Carbon Film W ......Wire Wound For parts or service contact Sanyo Manufacturing Corporation P.O. Box 2000 3333 Sanyo Road Forrest City, Arkansas 72335-2000 May 2009 SMC Published in Mexico.

  • Page 45: Schematic Diagrams

    MODEL DP26649 Chassis No. P26649-00 SCHEMATIC DIAGRAMS J10EA043N ELECTROSTATICALLY SENSITIVE DEVICES Many solid-state devices (especially Integrated Circuits) are Electrostatically R1601 R1603 R1604 1/10GF 1/10GF 1/10GJ 10KC 2.2KC 220C Sensitive, and, therefore, require special handling techniques as described under C1609 R1602 1/10GJ4.7KC...

  • Page 46

    MODEL DP26649 Chassis No. P26649-00 SCHEMATIC DIAGRAMS R2449 R6329 IC2445 C2445 R6330 R2447 KZ0.1LZF C6302 TC7SH08FUP 1/10GZ0C KZ0.1LZF LVDS_POW 6.5V H_SYNC R2448 C6752 L2400 IC6750 1/10GJ D2401 R2402 *C6303 1/10 L6270 100C GZ0.0 16EM220LBVD C6753 R6271 1%%oA 5V_STBY L6750 1/10GZ0.0 1/10GZ0C 1/10GJ4.7KC...

Comments to this Manuals

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Latest comments:
  • Debra Jan 31, 2017 02:55:
    I have a 2009 Sanyo a friend gave me 19in It only has a hook up for the ant
  • Wayne Jones Jul 03, 2016 09:45:
    Thank the good Lord for your site. I feel like i got a good chance at fixing my tv