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Sanyo DP42841 Service Manual

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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
DP42841, Z5VG, PRODUCT CODE 113026406
Remote Control Digital
Color Television
FILE NO.
DP42841
ORIGINAL VERSION
Chassis No. P42841-00
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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
780184

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  Summary of Contents for Sanyo DP42841

  • Page 1: Table Of Contents

    HEIGHT ....... 704mm DEPTH INCLUDING BASE ....307mm DP42841, Z5VG, PRODUCT CODE 113026406 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 prevent 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. LCD PANEL REMOVAL CHASSIS BASE REMOVAL Lift up the LCD panel from front cabinet. Remove 4 screws (D: 4x8) to take off the chassis base.
  • 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 C5531 F1G1C104A077 CERAMIC 0.1U K “ASSY,PWB,DIGITAL_Z-Z5VG” C5532 F1J0J106A004 CERAMIC 10U K 6.3V CAPACITORS F1J0J106A020 CERAMIC 10U K 6.3V C001 F1G1C104A077 CERAMIC 0.1U K C5533 F1G1C104A077 CERAMIC 0.1U K C003 F1G1C104A077 CERAMIC 0.1U K C5534...
  • Page 10 Schematic Schematic Part No. Part No. Description Description Location Location C5586 F1G1E473A091 CERAMIC 0.047U K C6330 F1G1C104A077 CERAMIC 0.1U K C5588 F1G1E473A091 CERAMIC 0.047U K C6332 F2G1C221A066 ELECT 220U M C5590 F1G1E473A091 CERAMIC 0.047U K C6500 F1G1C104A077 CERAMIC 0.1U K C5592 F1G1C104A077 CERAMIC...
  • Page 11 Schematic Schematic Part No. Part No. Description Description Location Location C0JBAA000505 IC 74AHCT1G08GW B1ABDF000024 TR 2SC3928A1S IC6560 C0JBAA000502 “IC TC7SET08FU(5L,JF,T” TXXLBB006—-P TR MMBTSC3928R C0JBAA000505 IC 74AHCT1G08GW Q6329 TCPH3338-T-EP TR CPH3338-T-TL-E IC6600 C0DBZYY00458 IC RT9711CGB Q6330 T2SC2859-Y—P TR 2SC2859-Y TE85L IC6700 C0CBAYG00009 IC LM1117S-ADJ Q6331...
  • Page 12 Schematic Schematic Part No. Part No. Description Description Location Location R5525 D0GB472JA072 MT-GLAZE 4.7K JA 1/10W R5583 D0GB101JA069 MT-GLAZE 100 JA 1/10W R5526 D0GB472JA072 MT-GLAZE 4.7K JA 1/10W R5584 D0GB101JA069 MT-GLAZE 100 JA 1/10W R5527 D0GBR00JA071 MT-GLAZE 0.000 ZA 1/10W R5585 D0GBR00JA071 MT-GLAZE...
  • Page 13 Schematic Schematic Part No. Part No. Description Description Location Location R6704 D0GBR00JA071 MT-GLAZE 0.000 ZA 1/10W R6324 D0GBR00JA071 MT-GLAZE 0.000 ZA 1/10W R6330 D0GZ151JA019 MT-GLAZE 150 JA R6705 D0GBR00JA071 MT-GLAZE 0.000 ZA 1/10W R6331 D0GZ151JA019 MT-GLAZE 150 JA R6706 D0GB471ZA037 MT-GLAZE 470 FA 1/10W R6332...
  • Page 14 Schematic Schematic Part No. Part No. Description Description Location Location C1643 F1H1H104A220 CERAMIC 0.1U Z IC1640 C0CBAYG00009 IC LM1117S-ADJ C1644 F2A1V4710080 ELECT 470U M IC1680 C0CBAYG00009 IC LM1117S-ADJ C1666 F2A1V4710080 ELECT 470U M IC2401 C0JBAA000570 “IC TC7SH08F,LJ(T” C1680 F1J0J106A004 CERAMIC 10U K 6.3V IC2402...
  • Page 15 Schematic Schematic Part No. Part No. Description Description Location Location R1802 D0GB102JA071 MT-GLAZE 1K JA 1/10W Q3902 B1ABDF000013 TR 2SC3928A1R B1ABDF000024 TR 2SC3928A1S R1803 D0GBR00JA071 MT-GLAZE 0.000 ZA 1/10W TXXLBB006—-P TR MMBTSC3928R R1804 D0GB222JA072 MT-GLAZE 2.2K JA 1/10W D3904 B0BC6R100010 ZD UDZS-TE-176.2B R1805 RGFR000ZTAANL...
  • Page 16 Schematic Part No. Description Location MISCELLANEOUS A100 1AA0B10N302D0 “ASSY,PWB,DIGITAL_Z-Z5VG” A300 1AA0B10N319B0 “ASSY,PWB,ANALOG-COMP- Z5VG” A310 1AA0B10N319BA “ASSY,PWB,ANALOG-Z5VG” A320 1AA0B10N319BB “ASSY,PWB,KEY_SW-Z5VG” A330 1AA0B10N319BC “ASSY,PWB,RC_LED-Z5VG” A400 1AA0B10N290B0 “ASSY,PWB,POWER Z5VG” A3900 B3RAB0000094 “UNIT,REMOCON,RECEIVER” A6100 1AV4F1BAZ0090 “TUNER,U/V” 1AV4F1BAZ0091 “TUNER,U/V” EL901 1AV4T40C27200 LCD(T420HW09 V1) F601 K5G502Y00018 FUSE 250V 5A K8CTR...
  • Page 17 Schematic Schematic Part No. Part No. Description Description Location Location “ASSY,PWB,POWER Z5VG” F2A1V4710082 ELECT 470U M C706 CK3A102KANHAN CERAMIC 1000P K CAPACITORS F1B3A102A048 CERAMIC 1000P K C605 CGXAV27224ABC MT-POLYEST 0.22U M 275V C707 CK3A102KANHAN CERAMIC 1000P K F0CAF224A030 MT-POLYEST 0.22U K 275V F1B3A102A048 CERAMIC 1000P K...
  • Page 18 Schematic Schematic Part No. Part No. Description Description Location Location DDDA2J10100LG DIODE DA2J10100L DZDZ2J062M0LG ZD DIODE DZ2J062M0L D613 B0ACCK000005 DIODE 1SS355-TE-17 D639 B0BC01700015 ZENER DIODE UDZS18B-TE-17 B0ACDJ000007 DIODE 1SS352-(TPH3) B0BC018A0383 ZENER DIODE MM3Z 18B DDDA2J10100LG DIODE DA2J10100L DZDZ2J180M0LG ZD DIODE DZ2J180M0L D640 B0BC01700015 ZENER DIODE UDZS18B-TE-17...
  • Page 19 Schematic Schematic Part No. Part No. Description Description Location Location TXXLBB006—-P TR MMBTSC3928R R705 D0GZ103JA018 MT-GLAZE 10K JA 1/4W Q611 B1ADCF000194 TR ISA1235AC1F R706 D0GB152JA072 MT-GLAZE 1.5K JA 1/10W B1ADCF000201 TR ISA1235AC1E R707 D0GB153ZA038 MT-GLAZE 15K FA 1/10W TXXLBB005—-P TR MMBTSA1235F R708 D0GB122ZA038 MT-GLAZE...
  • Page 20 "For Digital board replacement please get the correct assembly name/part number" Service Name: ASSY,PWB,DIGITAL_Z-Z5VG Japan BOM part number: 1AA0B10N302D0 "For Analog board replacement please get the correct assembly name/part number" Service Name: ASSY,PWB,ANALOG-Z5VG Japan BOM part number: 1AA0B10N319BA NOTE: This sub assembly (A310) is from ASSY,PWB,ANALOG-COMP-Z5VG (A300) "For KEW_SW unit replacement please get the correct assembly name/part number"...
  • 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 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 23 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 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 (or DVI) Clock...
  • 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 May 2011 SMC Published in Mexico...
  • Page 41: Schematic Diagrams

    MODEL DP42841 Chassis No. P42841-00 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 Sensitive, and, therefore, require special handling techniques as described under...
  • Page 42 MODEL DP42841 Chassis No. P42841-00 SCHEMATIC DIAGRAMS C701 ELECTROSTATICALLY SENSITIVE DEVICES 1000KK1000NHA Many solid-state devices (especially Integrated Circuits) are Electrostatically R650 :1000KK1000CR D628A 2SJ0.22D 2HEA0431-- Sensitive, and, therefore, require special handling techniques as described under D628B ZB13 T602 :ZB29 D628 “Servicing Electrostatically Sensitive Devices,”...
  • Page 43 MODEL DP42841 Chassis No. P42841-00 SCHEMATIC DIAGRAMS K16A K16B R2400 1/10GZ0C JW1603 SN12 B4J11B0740N PC_AUDIOL B4J11B0500N 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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Dp47840