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Sanyo DP42840 Service Manual

Remote control digital color television chassis no. p42840-05
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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 . . . . . . . . . . . . . . . . 8
BLOCK DIAGRAM POWER LINES. . . . . . . . . . . . . . . . . 25
BLOCK DIAGRAM SIGNAL LINES . . . . . . . . . . . . . . . . 26
IC BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . 27
TROUBLESHOOTING FLOW CHARTS . . . . . . . . . . . . . 33
SCHEMATIC NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
SCHEMATIC DIAGRAMS. . . . . . . . . . . . . . . . . . . . . . . . 41
DP42840, N7AP, PRODUCT CODE 113018210
Remote Control Digital
Color Television
FILE NO.
DP42840
ORIGINAL VERSION
Chassis No. P42840-05
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1012mm
HEIGHT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 704mm
DEPTH INCLUDING BASE . . . . . . . . . . . . . . . . 307mm
REFERENCE No.
(U.S.A.)
(CANADA)
178 W (AVG.)
UHF/VHF/CATV
DIGITAL
14 - 69 (UHF),
01, 14-94, 95-135 (CATV)
1-135 (DIGITAL)
SM
780178

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  Summary of Contents for Sanyo DP42840

  • Page 1: Table Of Contents

    HEIGHT ....... 704mm DEPTH INCLUDING BASE ....307mm DP42840, N7AP, PRODUCT CODE 113018210 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 IC5750 (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. Title Initial Data Note MUTE Audio mute at Power ON Volume setup inspection...
  • 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 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. The Earth sheet and gasket are provided to pre- vent interference to other radio and television receivers.
  • Page 7 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. BACK CABINET REMOVAL Remove 17 screws to take the back cabinet off. (C: 3x14, 13pcs;...
  • Page 8: 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 9 Schematic Schematic Part No. Part No. Description Description Location Location ASSY, PWB, DIGITAL PARTS LIST C5527 CK1H103KMNBNG CERAMIC 0.01U K C5528 CK1C104KMNBNG CERAMIC 0.1U K CAPACITORS C5531 CK1C104KMNBNG CERAMIC 0.1U K C001 CK1C104KMNBNG CERAMIC 0.1U K C5532 CK0J106KGABNG CERAMIC 10U K 6.3V C003 CK1C104KMNBNG CERAMIC...
  • Page 10 Schematic Schematic Part No. Part No. Description Description Location Location C5580 CK1A105KMNBNG CERAMIC 1U K C6256 CK0J475KGQBNG CERAMIC 4.7U K 6.3V C5581 CK1E473KMNBNG CERAMIC 0.047U K C6257 CK0J475KGQBNG CERAMIC 4.7U K 6.3V C5583 CK1E473KMNBNG CERAMIC 0.047U K C6258 CC1H560JMNCNG CERAMIC 56P J C5585 CK1H103KMNBNG CERAMIC...
  • Page 11 Schematic Schematic Part No. Part No. Description Description Location Location INTEGRATED CIRCUITS L6312 1LB4R1YB0R0ZG R-NETWORK 0X4 0.063W L6313 1LB4R1YB0R0ZG R-NETWORK 0X4 0.063W IC001 QLV4906V-H—P IC LV4906V-TLM-H L6314 1LB4R1YB0R0ZG R-NETWORK 0X4 0.063W IC5500 QXXAVD250—-M IC ZR39748BGCG L6315 1LB4R1YB0R0ZG R-NETWORK 0X4 0.063W IC5650 QXXAVD046—-P IC XC6108N28AMR...
  • Page 12 Schematic Schematic Part No. Part No. Description Description Location Location RESISTORS R5552 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R5553 RGF75R0JTCANL MT-GLAZE 75 JA 1/10W R004 RGF1000JTCANL MT-GLAZE 100 JA 1/10W R5554 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R005 RGF1000JTCANL MT-GLAZE 100 JA 1/10W R5555 RGF75R0JTCANL MT-GLAZE...
  • Page 13 Schematic Schematic Part No. Part No. Description Description Location Location R5901 RGF1000JTCANL MT-GLAZE 100 JA 1/10W R6520 RGF47R0JTCANL MT-GLAZE 47 JA 1/10W R5902 RGF1002JTCANL MT-GLAZE 10K JA 1/10W R6530 RGF4702JTCANL MT-GLAZE 47K JA 1/10W R5903 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R6531 RGF4702JTCANL MT-GLAZE...
  • Page 14 Schematic Schematic Part No. Part No. Description Description Location Location R6743 RGF2202JTCANL MT-GLAZE 22K JA 1/10W C6101 1LB4L26B0700G INDUCTOR, 120 OHM R6744 RGF1002JTCANL MT-GLAZE 10K JA 1/10W C6102 CK1H102KGQBNG CERAMIC 1000P K R6745 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W C6104 CC1H270JGQCNG CERAMIC 27P J R6746...
  • Page 15 Schematic Schematic Part No. Part No. Description Description Location Location L1707 1LB4L26B0740G “INDUCTOR , 220 OHM” R1621 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W L1708 1LB4L26B0740G “INDUCTOR , 220 OHM” R1622 RGF1001FTCANL MT-GLAZE 1K FA 1/10W L1709 1LB4L26B0740G “INDUCTOR , 220 OHM” R1623 RGF1002JTCANL MT-GLAZE...
  • Page 16 Schematic Schematic Part No. Part No. Description Description Location Location R2411 RGF1002JTCANL MT-GLAZE 10K JA 1/10W MISCELLANEOUS R2412 RGF1002JTCANL MT-GLAZE 10K JA 1/10W A100 1AA0B10N30200 “ASSY,PWB,DIGITAL_Z-N7AP” R2413 RGF1002JTCANL MT-GLAZE 10K JA 1/10W A200 1AA0B10N30300 “ASSY,PWB,ANALOG-COMP- R2414 RGF1000JTCANL MT-GLAZE 100 JA 1/10W N7AP”...
  • Page 17 Schematic Schematic Part No. Part No. Description Description Location Location ASSY, PWB, POWER BOARD C704 CE1V681M2FANN ELECT 680U M PARTS LIST CE1V681M6QANN ELECT 680U M C705 CE1V471M2FANN ELECT 470U M CAPACITORS CE1V471M6QANN ELECT 470U M C605 CGXAV27224ABC MT-POLYEST 0.22U M 275V C706 CK3A102KANHAN...
  • Page 18 Schematic Schematic Part No. Part No. Description Description Location Location DD1SS355——G DIODE 1SS355-TE-17 D636 DD1SS352——G DIODE 1SS352-(TPH3) DDXLBB053—-G DIODE 1SS35 DD1SS355——G DIODE 1SS355-TE-17 D611 DDAG01A——-N DIODE AG01A DDXLBB053—-G DIODE 1SS35 DDXLBB093—-N DIODE HER106 D637 DD1SS352——G DIODE 1SS352-(TPH3) D612 DD1SS352——G DIODE 1SS352-(TPH3) DD1SS355——G DIODE 1SS355-TE-17 DD1SS355——G...
  • Page 19 Schematic Schematic Part No. Part No. Description Description Location Location TXXLBB006—-P TR MMBTSC3928R R642 RGB10R0JTBANL MT-GLAZE 10 JA 1/4W Q607 T2SC3928A1R-P TR 2SC3928A1R R644 RGF4702JTCANL MT-GLAZE 47K JA 1/10W T2SC3928A1S-P TR 2SC3928A1S R646 RGF5600JTCANL MT-GLAZE 560 JA 1/10W TXXLBB006—-P TR MMBTSC3928R R648 RXXAVA105JABN RESISTER...
  • Page 20 Schematic Schematic Part No. Part No. Description Description Location Location R746 RGF1002JTCANL MT-GLAZE 10K JA 1/10W R747 RGF2202JTCANL MT-GLAZE 22K JA 1/10W R750 RN1R010FTDANL MT-FILM 0.01 FA R751 RN2R020FTEANL MT-FILM 0.02 FA R752 RN2R020FTEANL MT-FILM 0.02 FA R754 RS21501JGDAGN OXIDE-MT 1.5K JA R765 RGB4701JTBANL...
  • Page 21: Component And Test Point Locations

    COMPONENT AND TEST POINT LOCATIONS DIGITAL BOARD PARTS SIDE K5LV C6700 R6710 R6705 C6703 2ndReflow 1LG4B10Y06900 PWB,MAIN DIGITAL N7AP L6314 L6312 L6310 ***.??? C6707 CL11 K6500 L6315 L6313 L6311 A30C5 R5504 R5503 K56CPU R6307 CL10 R5528 R5529 R5531 C6332 C5575 IC5500 R5533 R5950...
  • Page 22 ANALOG BOARD PARTS SIDE 4 K8CTRA K8CTR J1627 J1628 J1681 K8FRA J1630 J1629 J1631 J1632 J1623 J1633 J1634 J1622 J1620 J1635 J1621 J1619 J1637 J1618 J1638 J1639 J1640 J1643 J1641 J1642 24/15V J1647 J1610 J1648 J1649 JW1603 J1650 J1604 AUDIO_P 3.3V_STBY J1606 JW1602...
  • Page 23 CONTROL BOARD PART SIDE SW1902 SW1902A SW1901 SW1903 SW1904 SW1905 SW1906 SW1907 SW1901A MENU SW1903A SW1904A SW1905A SW1906A SW1907A POWER INPUT VOL.+ VOL.- CH.+ CH.- K19CTRB L1901 (4PIN) J1901 K19K PWB,KEY_SW N8LJ K19CTRA 1LG4B10Y0660B K19CTR (4PIN) A30C5 (8PIN) SIDE SIDE CONTROL BOARD SOLDER SIDE SW1901A SW1901...
  • Page 24 POWER BOARD PART SIDE K604 L611 PARTS SIDE PWB.POWER.N7AL A30C5 K605 1LG4B10Y04800 _ A R650 T602 Q601HD Q602HD R650H2 R650H1 C705 R628 R628H2 R628H1 Q601 Q602 J653 C653 D601AH3 Q601HS D601AH4 C703 C704 J660 J604 VA603 C702A C702 D628H2 D629H2 C645 R755 C645H2...
  • Page 25: Block Diagram Power Lines

    BLOCK DIAGRAM POWER LINES – 25 –...
  • Page 26: Block Diagram Signal Lines

    BLOCK DIAGRAM SIGNAL LINES BLOCK DIAGRAM SIGNAL LINES DP42840 (N7AP/N7AR) IC5700 IC5750 DDR2 D3.3V D1.8V_DDR 512Mbit (64Mbit) (400MHz) Video2 IC5500 (Component/ S/P DIF Composite) Video3 (Component) MPEG2 DEMUX Video UART(Debug) Decode HDMI1 3.3V (or DVI) 1.8V HDMI HDMI2 (MIPS) Scalar 1.1V...
  • Page 27: Ic Block Diagrams

    IC BLOCK DIAGRAMS IC001, Audio AMP – 27 –...
  • Page 28 IC BLOCK DIAGRAMS (CONT.) IC1600, IC1640 DC to DC Converter IC1620, DC-DC converter – 28 –...
  • Page 29 IC5650, IC5660, IC5900 Voltage detector IC5750, Flash Memory – 29 –...
  • Page 30 IC BLOCK DIAGRAMS (CONT.) IC5500 Main Chip signal processor JTAG/EJTAG CPU (300 MHz) Control Memory Interface Unit (MIF) 8VSB/QAM/ NTSC/BTSC/A2K DEMOD Xport Demux Memory Interface Unit Commom MPEG2 Decode Unit 1080P Motion Adaptive De-Interlacer 3rd Generation TCON HDMI Link List LVDS Output Graphics HDMI...
  • Page 31 IC6250, Voltage comparator IC5700, DDR: Double Data Rate SDRAM – 31 –...
  • Page 32 IC BLOCK DIAGRAMS (CONT.) IC6500, IC6530, IC6560, Logic AND gate IC 6600, USB Protection – 32 –...
  • Page 33: 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 34 TROUBLESHOOTING FLOW CHARTS (CONT.) NO VIDEO Trouble Shooting Video US1Y(42-N7AP) Check: RF(TV) ,Digital(TV) All Inputs? Line: A6100 21pin - IC5500 A12pin A6100 20pin - IC5500 B12pin only Parts: Around A6100 (TU_IF), IC5500 Check: AV1 only Line: Terminal(CV) - IC5500 B13pin Parts: Around IC5500 Check: AV2 only...
  • Page 35 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 F1pin (ACLK) IC001 3pin - IC5500 G4pin (ADATA1) IC001 4pin - IC5500 F2pin (LRCLK) IC001 5pin - IC5500 L3pin (BCLK)
  • Page 36: Main Ic(Signal Processor) & Periphericals

    MAIN IC(SIGNAL PROCESSOR) & PERIPHERICALS DDR2 SPI Flash 512Mbit (64Mbit) (400MHz) Video2 (Component/ Composite) Video3 DEMUX MPEG2 (Component) Video Decode HDMI1 HDMI2 (MIPS) UART(Debug) (or DVI) port HDMI2 HDMI UART(Factory) HDMI1 Scalar (or DVI) port Clock HDMI3 HDMI0 (25MHz) Audio (or DVI) NTSC port...
  • Page 37: 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 38: Ic, Diode, And Transistor Pin Layouts

    IC, DIODE, AND TRANSISTOR PIN LAYOUTS – 38 –...
  • Page 39: Pc Board Connections And Locations

    PC BOARD CONNECTIONS AND LOCATIONS – 39 –...
  • Page 40: 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 January 2011 SMC Published in Mexico...
  • Page 41: Schematic Diagrams

    MODEL DP42840 Chassis No. P42840-05 SCHEMATIC DIAGRAMS For Debug C6334 ELECTROSTATICALLY SENSITIVE DEVICES K5DL J10AU045N Pch-MOSFET A12/15V K5DL_1 Many solid-state devices (especially Integrated Circuits) are Electrostatically K5DL_2 UART0TX R5701 *Q6329 K5DL_3 UART0RX Sensitive, and, therefore, require special handling techniques as described under...
  • Page 42 MODEL DP42840 Chassis No. P42840-05 SCHEMATIC DIAGRAMS K16A K16B R2400 1/10GZ0C JW1603 B4J11B0500N PC_AUDIOL B4J11B0740N *R2418 GND_FLM R2402 *IC2401 LED1 QXXAVD258P K2401 B4J12B11900 R2401 3.3V_STBY 1/10GZ0C *C2410 V_SYNC SC2400 PC_AUDIOR KZ0.1GQF K2401_2 IC1600 C1602 SC2401 K2401_3 PC_VSYNC LM1117S-ADJP 6.3EM220LBVD K2401_1...
  • Page 43 MODEL DP42840 Chassis No. P42840-05 SCHEMATIC DIAGRAMS ELECTROSTATICALLY SENSITIVE DEVICES Many solid-state devices (especially Integrated Circuits) are Electrostatically Sensitive, and, therefore, require special handling techniques as described under C701 “Servicing Electrostatically Sensitive Devices,” on page two in this service literature.