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Sanyo DP42740 Service Manual
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Sanyo DP42740 Service Manual

Sanyo DP42740 Service Manual

Remote control digital color television
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See also: 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 . . . . . . . . . . . . . . . . 8
BLOCK DIAGRAM POWER LINES. . . . . . . . . . . . . . . . . 23
BLOCK DIAGRAM SIGNAL LINES . . . . . . . . . . . . . . . . 24
IC BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . 25
TROUBLESHOOTING FLOW CHARTS . . . . . . . . . . . . . 31
SCHEMATIC NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
SCHEMATIC DIAGRAMS. . . . . . . . . . . . . . . . . . . . . . . . 39
DP42740, J4HG, PRODUCT CODE 111011104
Remote Control Digital
Color Television
VOL
CH
POWER
MENU ENTER
FILE NO.
DP42740
ORIGINAL VERSION
Chassis No. P42740-04
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1055mm
HEIGHT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 723mm
DEPTH INCLUDING BASE . . . . . . . . . . . . . . . . 246mm
REFERENCE No.
(U.S.A.)
(CANADA)
162 W (AVG.)
UHF/VHF/CATV
DIGITAL
14 - 69 (UHF),
01, 14-94, 95-135 (CATV)
1-135 (DIGITAL)
SM
780190

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Summary of Contents for Sanyo DP42740

  • Page 1: Table Of Contents

    HEIGHT ....... 723mm DEPTH INCLUDING BASE ....246mm DP42740, J4HG, PRODUCT CODE 111011104 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. Index ParameterName Value 0x1A NOTES: 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. Take the connectors from below lead wire off. 2. Remove 6 screws (A:4x12, 2 pcs; C:4x8, 4 pcs) to take the panel module and panel holders (Mounting Frames) Control Board ~ Analog Board: K8CTRA with boards off.
  • Page 9 MECHANICAL DISASSEMBLY (Continued) KEY SW BOARD REMOVAL Remove 1 screw (K:3x14) to take the key sw board off. KEY SW Board SPEAKER REMOVAL Remove 4 screws (A:4x12) to take off both speakers. Speaker Speaker RC LED BOARD REMOVAL Remove 1 screw (K:3x14) to take the RC Led board off. RC LED Board –...

  • Page 10: Panel Module Removal

    PANEL MODULE REMOVAL 1. Remove the 2 screws (C:4x8) from the Mounting Frames to take the Chassis Frame off. Mounting Frame Chassis Frame 2. Remove the 4 screws (C:4x8) from the Mounting Frames to take the panel moduel off. Mounting Frame CAUTION: This PDP TV uses several different kinds of screws.

  • 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_Z-J4HF” C5527 F1G1H103A706 CERAMIC 0.01U K C5528 F1G1C104A077 CERAMIC 0.1U K CAPACITORS C5531 F1G1C104A077 CERAMIC 0.1U K C001 F1G1C104A077 CERAMIC 0.1U K C5532 F1J0J106A004 CERAMIC 10U K 6.3V C003 F1G1C104A077 CERAMIC 0.1U K F1J0J106A020...

  • Page 13: Integrated Circuits

    Schematic Schematic Part No. Part No. Description Description Location Location C5580 F1G1A105A047 CERAMIC 1U K C6258 F1G1H560A541 CERAMIC 56P J C5581 F1G1E473A091 CERAMIC 0.047U K C6259 F1H0J4750004 CERAMIC 4.7U K 6.3V C5583 F1G1E473A091 CERAMIC 0.047U K C6260 F1G1H1020008 CERAMIC 1000P K C5585 F1G1H103A706 CERAMIC...
  • Page 14 Schematic Schematic Part No. Part No. Description Description Location Location C0JBAA000505 IC 74AHCT1G08GW B1ABDF000013 TR 2SC3928A1R IC6560 C0JBAA000502 “IC TC7SET08FU(5L,JF,T” B1ABDF000024 TR 2SC3928A1S C0JBAA000505 IC 74AHCT1G08GW Q6700 B1ABCE000028 TR MMBTSC3928R IC6600 C0DBZYY00458 IC RT9711CGB B1ABDF000013 TR 2SC3928A1R IC6700 C0CBAYG00009 IC LM1117S-ADJ B1ABDF000024 TR 2SC3928A1S IC6720...
  • Page 15 Schematic Schematic Part No. Part No. Description Description Location Location R5531 D0GB333JA070 MT-GLAZE 33K JA 1/10W R5588 D0GB102JA071 MT-GLAZE 1K JA 1/10W R5532 D0GB273JA072 MT-GLAZE 27K JA 1/10W R5589 D0GB102JA071 MT-GLAZE 1K JA 1/10W R5533 D0GB333JA070 MT-GLAZE 33K JA 1/10W R5591 D0GB472JA072 MT-GLAZE...
  • Page 16 Schematic Schematic Part No. Part No. Description Description Location Location R6530 D0GB473JA072 MT-GLAZE 47K JA 1/10W R6743 D0GB223JA070 MT-GLAZE 22K JA 1/10W R6531 D0GB473JA072 MT-GLAZE 47K JA 1/10W R6744 D0GB104JA068 MT-GLAZE 100K JA 1/10W R6532 D0GB102JA071 MT-GLAZE 1K JA 1/10W R6745 D0GBR00JA071 MT-GLAZE...
  • Page 17 Schematic Schematic Part No. Part No. Description Description Location Location C6109 CEXLB0J222VDJ ELECT 2200U M 6.3V D0GDR00Z0002 MT-GLAZE 0.000 ZA 1/10W C6110 F1H1H104A220 CERAMIC 0.1U Z L1712 D0GDR00JA072 MT-GLAZE 0.000 ZA 1/10W C6111 F1H1H102A219 CERAMIC 1000P K D0GDR00Z0002 MT-GLAZE 0.000 ZA 1/10W C6113 F1H1H2200008 CERAMIC...
  • Page 18 Schematic Schematic Part No. Part No. Description Description Location Location R1624 D0GB472ZA038 MT-GLAZE 4.7K FA 1/10W MISCELLANEOUS R1625 D0GB102ZA038 MT-GLAZE 1K FA 1/10W A100 1AA0B10N302B0 “ASSY,PWB,DIGITAL_Z-J4HF” R1640 D0GB121ZA038 MT-GLAZE 120 FA 1/10W A200 1AA0B10N303D0 “ASSY,PWB,ANALOG-COMP- R1641 D0GB120JA072 MT-GLAZE 12 JA 1/10W J4HG”...
  • Page 19 ASSEMBLY BOARD REPLACEMENTS For Digital board replacement please get the correct assembly name/part number" Service Name: ASSY,PWB,DIGITAL_Z-J4HF Japan BOM part number: 1AA0B10N302B0 "For Analog board replacement please get the correct assembly name/part number" Service Name: ASSY,PWB,ANALOG-J4HG Japan BOM part number: 1AA0B10N303DA NOTE: This sub assembly (A201) is from ASSY,PWB,ANALOG-COMP-J4HG (A200) "For KEW_SW unit replacement please get the correct assembly name/part number"...

  • Page 20: 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 R5503 R5504 K56CPU R6307 CL10 R5528 R5529 R5531 C6332 C5575 IC5500 R5533 R5950...
  • Page 21 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 22 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) (8PIN) A30C5 SIDE SIDE CONTROL BOARD SOLDER SIDE SW1901A SW1901...

  • Page 23: Block Diagram Power Lines

    BLOCK DIAGRAM POWER LINES – 23 –...

  • Page 24: Block Diagram Signal Lines

    BLOCK DIAGRAM SIGNAL LINES BLOCK DIAGRAM SIGNAL LINES DP42740 (J4HF) 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 (or DVI) 3.3V 1.8V HDMI HDMI2 (MIPS) Scalar 1.1V...

  • Page 25: Ic Block Diagrams

    IC BLOCK DIAGRAMS IC001, Audio AMP – 25 –...
  • Page 26 IC BLOCK DIAGRAMS (CONT.) IC1600, IC1640 DC to DC Converter IC1620, DC-DC converter – 26 –...
  • Page 27 IC5650, IC5660, IC5900 Voltage detector IC5750, Flash Memory – 27 –...
  • Page 28 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 29 IC6250, Voltage comparator IC5700, DDR: Double Data Rate SDRAM – 29 –...
  • Page 30 IC BLOCK DIAGRAMS (CONT.) IC6500, IC6530, IC6560, Logic AND gate IC 6600, USB Protection – 30 –...

  • Page 31: 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 32 TROUBLESHOOTING FLOW CHARTS (CONT.) NO VIDEO Trouble Shooting Video US1Y(42-J4HF) 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 33 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 34: 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 35: 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 36: Ic, Diode, And Transistor Pin Layouts

    IC, DIODE, AND TRANSISTOR PIN LAYOUTS – 36 –...

  • Page 37: Pc Board Connections And Locations

    PC BOARD CONNECTIONS AND LOCATIONS K5LV HDMI HDMI HDMI K55SP K16A K16B TUNER K8FRA K8CTRA – 37 –...

  • Page 38: 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 June 2011 SMC Published in Mexico...

  • Page 39: Schematic Diagrams

    MODEL DP42740 Chassis No. P42740-04 SCHEMATIC DIAGRAMS For Debug C6334 K5DL J10AU045N Pch-MOSFET A12/15V K5DL_1 K5DL_2 UART0TX R5701 *Q6329 K5DL_3 UART0RX 1/10GJ GATE_PIN K5DL_4 100C H:OFF D3.3V C5701 C5703 L:ON *R6340 *R6337 16KK0.1MN 16KK0.1MN C6335 R6703 ELECTROSTATICALLY SENSITIVE DEVICES R6705...
  • Page 40 MODEL DP42740 Chassis No. P42740-04 SCHEMATIC DIAGRAMS K16A K16B R2400 1/10GZ0C JW1603 PC_AUDIOL B4J11B0500N B4J11B0740N 1/10GJ100C *R2418 GND_FLM R2402 *IC2401 LED1 K2401 B4J12B11900 R2401 3.3V_STBY *C2410 V_SYNC 1/10GZ0C SC2400 PC_AUDIOR K2401_2 C1602 IC1600 PC_VSYNC SC2401 K2401_3 LM1117S-ADJP 6.3EM220LBVD *R2416 GND_FLM...

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