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Sanyo DP50741 Service Manual

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See also: Service Manual , Owner's Manual
SERVICE MANUAL
Servicing should be performed by only trained and qualified service personnel.
Contents
SAFETY INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . 2
SERVICE ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . 3
ON-SCREEN SERVICE MENU . . . . . . . . . . . . . . . . . . . . . 4
POWER FAILURE CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . 5
MECHANICAL DISASSEMBLY . . . . . . . . . . . . . . . . . . . . 6
CHASSIS ELECTRICAL PARTS LIST . . . . . . . . . . . . . . . 11
BLOCK DIAGRAM POWER LINES. . . . . . . . . . . . . . . . . 25
BLOCK DIAGRAM SIGNAL LINES . . . . . . . . . . . . . . . . 26
IC BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . 27
TROUBLESHOOTING FLOW CHARTS . . . . . . . . . . . . . 32
BLOCK DIAGRAM OF MAIN MICOM . . . . . . . . . . . . . . 35
SCHEMATIC NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
SCHEMATIC DIAGRAMS. . . . . . . . . . . . . . . . . . . . . . . . 40
DP50741, J4JE, PRODUCT CODE 111011204
Remote Control Digital
Color Television
FILE NO.
DP50741
ORIGINAL VERSION
Chassis No. P50741-00
NOTE: Match the Chassis No. on
the unit's back cover with
the Chassis No. in the
Service Manual.
If the Original Version
Service Manual Chassis
No. does not match the
unit's, additional Service
Literature is required. You
must refer to "Notices" to the
Original Service Manual
prior to servicing the unit.

Specifications

POWER RATING . . . . . . . . . . . . . . . . . . . . . . . . . 120VAC
ANTENNA INPUT IMPEDANCE. . . . . . . . . . . . . . . . . 75Ω
RECEIVING CHANNEL . . . . . . . . . . . . . . . . . 2 - 13 (VHF),
REMOTE READY. . . . . . . . . 36 KEY REMOTE CONTROL
SOUND OUTPUT. . . . . . . . . . . . . . . . . . . . . . . 10.0 W/CH
INTERMEDIATE FREQUENCY
PICTURE IF CARRIER . . . . . . . . . . . . . . . . . . 45.75MHz
SOUND IF CARRIER . . . . . . . . . . . . . . . . . . . 41.25MHz
COLOR SUB CARRIER . . . . . . . . . . . . . . . . . 42.17MHz
CABINET DIMENSIONS
WIDTH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1238mm
HEIGHT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 838mm
DEPTH INCLUDING BASE . . . . . . . . . . . . . . . . 283mm
REFERENCE No.
(U.S.A.)
(CANADA)
210 W (AVG.)
UHF/VHF/CATV
DIGITAL
14 - 69 (UHF),
01, 14-94, 95-135 (CATV)
1-135 (DIGITAL)
SM
780185

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Summary of Contents for Sanyo DP50741

  • Page 1: Table Of Contents

    HEIGHT ....... 838mm DEPTH INCLUDING BASE ....283mm DP50741, J4JE, PRODUCT CODE 111011204 REFERENCE No.

  • Page 2: 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 3: Service Adjustments

    SERVICE ADJUSTMENTS GENERAL This set has an On-screen Service Menu system included in Volume – 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: • Turn off the receiver and disconnect the AC power supply.

  • Page 4: On-Screen Service Menu

    ON-SCREEN SERVICE MENU Table 1. ON-SCREEN SERVICE MENU When IC7600 (Flash Memory) 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. Index ParameterName Value NOTES: Option 2 Data (Display Panel) Option 1 and Option 2 data is initial and can be set according to adjusment information.

  • Page 5: Power Failure Circuit

    POWER FAILURE CIRCUIT Check the following if the unit is turned off by the power Internal sub_CPU on main IC 5500 is programmed so the failure detector. set will go to standby mode when there is circuit failure as described below. (Refer to“Block Diagram Power Lines”.) 1.

  • Page 6: Mechanical Disassembly

    MECHANICAL DISASSEMBLY CAUTION: This PDP 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. The Earth sheet and gasket are provided to prevent interference to other radio and television receivers. The Earth sheet and gasket should be returned to its previous position after servicing.
  • Page 7 MECHANICAL DISASSEMBLY (Continued) 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. BOARD LOCATIONS 1: Main (Digital) Board 3: Power Unit 2: RC LED Board 4: KEY SW Board...
  • Page 8 MECHANICAL DISASSEMBLY (Continued) FILTER GLASS REMOVAL 1. Remove 4 screws (A:4x10) to take the panel module and panel holders (Mounting Frames) with boards off. Mounting Frame 3. Remove 5 screws (A:4x10) to take the shield front (4 pcs) and the filter glass off. Filter Grass –...
  • Page 9 MECHANICAL DISASSEMBLY (Continued) KEY SW BOARD REMOVAL Remove 2 screws (D:3x10) to take the key sw board off. KEY SW Board DEC IND SPEAKER REMOVAL Remove 4 screws (A:4x10) to take off both speakers. Speaker Speaker RC LED BOARD REMOVAL Remove 1 screw (D:3x10) to take the RC Led board off.

  • Page 10: Panel Module Removal

    PANEL MODULE REMOVAL 1. Remove the 4 screws (C:4x8) from the Mounting Frames to take the panel module off. Mounting Frame CAUTION: This PDP 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.

  • Page 11: 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 12 Schematic Schematic Part No. Part No. Description Description Location Location “ASSY,PWB,DIGITAL J4JE” C5522 F1G1C104A077 CERAMIC 0.1U K C5525 F1H0J4750004 CERAMIC 4.7U K 6.3V CAPACITORS C5528 F1G1C104A077 CERAMIC 0.1U K C001 F1G1C104A077 CERAMIC 0.1U K C5529 F1G1C104A077 CERAMIC 0.1U K C002 F1J0J106A004 CERAMIC 10U K...
  • Page 13 Schematic Schematic Part No. Part No. Description Description Location Location C5609 F1G1A105A047 CERAMIC 1U K C6603 F1G1C104A077 CERAMIC 0.1U K C5613 CC1H5R0CMNCNG CERAMIC 5P C C6604 F1G1C104A077 CERAMIC 0.1U K C5614 CC1H5R0CMNCNG CERAMIC 5P C C6605 F1G1C104A077 CERAMIC 0.1U K C5615 F1J0J106A004 CERAMIC...

  • Page 14: Integrated Circuits

    Schematic Schematic Part No. Part No. Description Description Location Location F1J0J106A020 CERAMIC 10U K 6.3V COILS C7600 F1G1C104A077 CERAMIC 0.1U K L001 J0JBC0000134 “INDUCTOR 1000OHM, P” C7681 F1H0J4750004 CERAMIC 4.7U K 6.3V L002 G1C220MA0445 “INDUCTOR ,22UH” C7682 F1G1C104A077 CERAMIC 0.1U K L003 G1C220MA0445 “INDUCTOR ,22UH”...
  • Page 15 Schematic Schematic Part No. Part No. Description Description Location Location L6702 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W RESISTORS L6703 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W R004 D0GB101JA069 MT-GLAZE 100 JA 1/10W L6704 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W R005 D0GB101JA069 MT-GLAZE 100 JA 1/10W L6705 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W...
  • Page 16 Schematic Schematic Part No. Part No. Description Description Location Location R5586 D0GB220JA072 MT-GLAZE 22 JA 1/10W R1263 D0GB224JA068 MT-GLAZE 220K JA 1/10W R1264 D0GB224JA068 MT-GLAZE 220K JA 1/10W R5587 D0GB220JA072 MT-GLAZE 22 JA 1/10W R1265 D0GB224JA068 MT-GLAZE 220K JA 1/10W R5588 D0GB220JA072 MT-GLAZE...
  • Page 17 Schematic Schematic Part No. Part No. Description Description Location Location R5720 D0GA121JA045 MT-GLAZE 120 JA 1/16W R6537 D0GB5R6JA072 MT-GLAZE 5.6 JA 1/10W R5760 D0GB271JA069 MT-GLAZE 270 JA 1/10W R6538 D0GB5R6JA072 MT-GLAZE 5.6 JA 1/10W R5763 D0GB271JA069 MT-GLAZE 270 JA 1/10W R6539 D0GB5R6JA072 MT-GLAZE...
  • Page 18 Schematic Schematic Part No. Part No. Description Description Location Location R6766 D0GB471ZA037 MT-GLAZE 470 FA 1/10W C1801 F1J0J106A004 CERAMIC 10U K 6.3V R6767 D0GB102ZA038 MT-GLAZE 1K FA 1/10W F1J0J106A020 CERAMIC 10U K 6.3V R6769 D0GB680JA072 MT-GLAZE 68 JA 1/10W C1802 F1H1H103A219 CERAMIC 0.01U K...
  • Page 19 Schematic Schematic Part No. Part No. Description Description Location Location L1710 J0JYC0000381 “INDUCTOR , 220 OHM” R1665 D0GBR00JA071 MT-GLAZE 0.000 ZA 1/10W L1717 RGF2202JTAANL MT-GLAZE 22K JA 1/10W R1667 D0GB103JA072 MT-GLAZE 10K JA 1/10W L1801 D0GBR00JA071 MT-GLAZE 0.000 ZA 1/10W R1668 D0GB223JA070 MT-GLAZE...
  • Page 20 Schematic Schematic Part No. Part No. Description Description Location Location R3913 D0GB103JA072 MT-GLAZE 10K JA 1/10W MISCELLANEOUS R3914 D0GB221JA069 MT-GLAZE 220 JA 1/10W A100 1AA0B10N309A0 “ASSY,PWB,DIGITAL J4JE” A300 1AA0B10N319A0 “ASSY,PWB,ANALOG-COMP- J4JE” SWITCHES A310 1AA0B10N319AA “ASSY,PWB,ANALOG-J4JE” SW1901 1AV4S10B5650J “SWITCH,PUSH 1P-1TX1” A320 1AA0B10N319AB “ASSY,PWB,KEY_SW-J4JE”...
  • Page 21 "For Digital board replacement please get the correct assembly name/part number" Service Name: ASSY,PWB,DIGITAL J4JE Japan BOM part number: 1AA0B10N309A0 "For Analog board replacement please get the correct assembly name/part number" Service Name: ASSY,PWB,ANALOG-J4JE Japan BOM part number: 1AA0B10N319AA NOTE: This sub assembly (A310) is from ASSY,PWB,ANALOG-COMP-J4JE (A300) "For KEW_SW unit replacement please get the correct assembly name/part number"...

  • Page 22: Component And Test Point Locations

    COMPONENT AND TEST POINT LOCATIONS DIGITAL BOARD PARTS SIDE KSITU R7612 KUSB R7613 K5LV R6300 K56CPU R6656 R6655 R5555 R846 L6301 L6308 R5951 R5959 C6331 R6301 K6504 R5661 C6330 L6300 R6323 K6505 C6653 Q5660 R5664 R5662 L6310 Q5661 L6311 L6312 L6314 L6313 R5630...
  • Page 23 ANALOG BOARD PARTS SIDE K8CTR (6PIN) J1629 K8CTRA (4PIN) K8FR (6PIN) K8FRA (4PIN) J1627 J1628 J1630 J1631 J1632 J1623 J1633 J1634 J1622 J1635 J1620 J1621 J1619 J1637 J1618 J1638 J1639 J1640 J1641 J1647 J1643 J1642 24/15V J1648 J1610 J1649 J1650 JW1603 J1604 J1607...
  • Page 24 CONTROL BOARD PART SIDE D1903 D1905 PWB.KEY_SW Z5VE 1LG4B10Y083AB A30C5 R1902 R1908 R1909 R1904 SW1905 SW1907 D1900 SW1902 SW1903 SW1904 SW1906 L1902 SW1901 CONTROL BOARD SOLDER SIDE K19CTR PWB,KEY_SW Z5VE 1LG4B10Y083AB (6PIN) K19CTRA CH.- CH.+ VOL.- VOL.+ INPUT MENU (4PIN) SW1907 SW1906 SW1905...

  • Page 25: Block Diagram Power Lines

    BLOCK DIAGRAM POWER LINES – 25 –...

  • Page 26: Block Diagram Signal Lines

    BLOCK DIAGRAM SIGNAL LINES IC7600 IC5760 AnalogUnit AnalogUnit Digital Unit Digital Unit DDR2 D3.3V DDR1_VREF SPI Flash 512Mb D1.8V_DDR (400MHz) (64Mb: 8MB) HDMI1_with Flange HDMI1_with Flange IC6600 IC5500 (or DVI) (or DVI) IC6650 sLDM KUSB Memory TMDS HDMI Interface USB 2.0 HDMI HDMI2 Unit...

  • Page 27: Ic Block Diagrams

    IC BLOCK DIAGRAMS IC001, Audio AMP – 27 –...
  • Page 28 IC BLOCK DIAGRAMS (CONT.) IC7600, Flash Memory IC6250, Dual operational amplifier D, M, E - Type (Top view) PIN FUNCTION 1. A OUTPU 2. A -INPUT 3. A +INPUT 4. V- 5. B +INPUT 6. B -INPUT 7. B OUTPUT 8.
  • Page 29 IC5500 Main Chip signal processor Stream Block AV Decode Block IF in De-modulator Transport Media Core Processor Decoder Remocon IF AVIO Block Standby Micro Block Clock (AM32) Reset Video IO Video In Decoder Video System Control Block Processor IVideo Out LVDS Audio De-mix...
  • Page 30 IC BLOCK DIAGRAMS (CONT.) IC1251, Multiplexer X-COMMON OUT c IN OUT c IN A 10 OUT c IN OUT c IN OUT c IN OUT c IN OUT c IN OUT c IN Y-COMMON IC5700, DDR: Double Data Rate SDRAM –...
  • Page 31 IC 6600, HDMI Switcher DDH(3V3) TDA9996 DDH(1V8) RXA_C+ OUT_C+ RXA_C– OUT_C– RXA_D0+ RXA_D0– RXA_D1+ RXA_D1– RXA_D2+ OUT_D0+ RXA_D2– OUT_D0– RXB_C+ RXB_C– RXB_D0+ RXB_D0– RT AND EQ RXB_D1+ RXB_D1– OUT_D1+ RXB_D2+ HDMI OUT_D1– RXB_D2– SWITCH RXC_C+ RXC_C– RXC_D0+ RXC_D0– RT AND EQ RXC_D1+ RXC_D1–...

  • Page 32: 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? MAIN IC (IC5500), Crystal (X5500), Power Unit (or the voltage to some lines is not supplied.) After a few seconds, the set will be switched off.
  • Page 33 TROUBLESHOOTING FLOW CHARTS (CONT.) NO VIDEO Check: RF(TV) ,Digital(TV) All Inputs? Line: A6200 7pin - IC5500 L1pin A6200 6pin - IC5500 L2pin only Parts: Around A6200 (TU_IF), IC5500 Check: AV1 only Line: Terminal(CV) - IC5500 E7pin Parts: Around IC5500 Check: AV2 only Line: Terminal(CV) - IC5500 D7pin...
  • Page 34 TROUBLESHOOTING FLOW CHARTS (CONT.) NO AUDIO Is there Check: All Modes ? signal at speaker Speaker (SP901, SP902) terminal ? Is there Check: signal at IC001 ? Line: IC001 30,24pin(L), 21,15pin(R) Parts: Around IC001 (Audio AMP.) Check: Line: IC001 37pin - IC5500 H5pin (ACLK) IC001 3pin - IC5500 H2pin (ADATA1) IC001 4pin - IC5500 G3pin (LRCLK) IC001 5pin - IC5500 H1pin (BCLK)

  • Page 35: Block Diagram Of Main Micom

    BLOCK DIAGRAM OF MAIN MICOM NAND External ports Flash IF AM34-2 Serial External ports Flash IF ITLB DTLB INT System Bus External ports Controller (SBC) BCU (Bus Controller Unit) External ports INTC Universal Serial IF IC Card IF DMAC TIMER Peripherals IO Port External Ports...

  • Page 36: 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 37: Ic, Diode, And Transistor Pin Layouts

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

  • Page 38: Pc Board Connections And Locations

    PC BOARD CONNECTIONS AND LOCATIONS K5LV TUNER HDMI HDMI KDSP HDMI K16A K16B K8FRA K8CTR – 38 –...

  • Page 39: 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 2011 SMC Published in Mexico...

  • Page 40: Schematic Diagrams

    MODEL DP50741 Chassis No. P50741-00 SCHEMATIC DIAGRAMS C6334 *L6340 Pch-MOSFET 12/5V JTAG/EJTAG NOTES: LCD:12V 1. RESISTORS SPECIFIED WITH RESISTANCE VALUE ARE "1/6DJ". PDP:5V *Q6329 2. RESISTORS SPECIFIED WITH TYPE OF RESISTOR, TOLERANCE GATE_PIN H:OFF AND RESISTANCE VALUE ARE "1/4". 3.3V_STBY...
  • Page 41 MODEL DP50741 Chassis No. P50741-00 SCHEMATIC DIAGRAMS Mode Setting Reset Part Panel OPT Note Flash OPT1 VDA10_D[3] OPT2 VDA10_D[1] IC7682 D3.3V ICPST8428NRP *IC7600 EEPROM(STM) QXXAAJQ1353-- 16Kbit C821 L820 IC820 10KK1MN B4L26B1300G SFIO[3] HOLD# SCLK SFCK KSITU R842 VDA10_CLK R7678 LE24C162M-EP 3.3V_STBY...
  • Page 42 MODEL DP50741 Chassis No. P50741-00 SCHEMATIC DIAGRAMS K16A K16B R2400 1/10GZ0C JW1603 SN12 PC_AUDIOL B4J11B0500N B4J11B0740N SN13 SN14 R2418 R2402 GND_FLM GND_FLM IC2401 LED1 K2401 QXXAVD258P B4J12B11900 R2401 3.3V_STBY 1/10GZ0C C2410 V_SYNC SC2400 PC_AUDIOR KZ0.1GQF K2401_2 IC1600 C1602 SC2401 K2401_3...

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