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Sanyo DP19649 Service Manual

Remote control digital color television.
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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 . . . . . . . . . . . . . . . 10
BLOCK DIAGRAM POWER LINES. . . . . . . . . . . . . . . . . 24
BLOCK DIAGRAM SIGNAL LINES . . . . . . . . . . . . . . . . 25
IC BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . 26
TROUBLESHOOTING FLOW CHARTS . . . . . . . . . . . . . 32
CONTROL PORT FUNCTIONS. . . . . . . . . . . . . . . . . . . . 35
ZORAN 772 PERIPHERICALS . . . . . . . . . . . . . . . . . . . . 37
SCHEMATIC NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
SCHEMATIC DIAGRAMS. . . . . . . . . . . . . . . . . . . . . . . . 42
DP19649, N7BE, PRODUCT CODE 113019104
Remote Control Digital
Color Television
FILE NO.
DP19649
ORIGINAL VERSION
Chassis No. P19649-00
NOTE: Match the Chassis No. on
the unit's back cover with
the Chassis No. in the
Service Manual.
If
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. . . . . . . . . 32 KEY REMOTE CONTROL
SOUND OUTPUT. . . . . . . . . . . . . . . . . . . . . . . . 3.0 W/CH
INTERMEDIATE FREQUENCY
PICTURE IF CARRIER . . . . . . . . . . . . . . . . . . 45.75MHz
SOUND IF CARRIER . . . . . . . . . . . . . . . . . . . 41.25MHz
COLOR SUB CARRIER . . . . . . . . . . . . . . . . . 42.17MHz
CABINET DIMENSIONS
WIDTH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 458mm
HEIGHT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361mm
DEPTH INCLUDING BASE . . . . . . . . . . . . . . . . 207mm
REFERENCE No.
(U.S.A.)
(CANADA)
the
Original
Version
39 W (AVG.)
UHF/VHF/CATV
DIGITAL
14 - 69 (UHF),
01, 14-94, 95-135 (CATV)
1-135 (DIGITAL)
SM
780156

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   Summary of Contents for Sanyo DP19649

  • Page 1: Table Of Contents

    HEIGHT ....... 361mm DEPTH INCLUDING BASE ....207mm DP19649, N7BE, PRODUCT CODE 113019104 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 – : 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 4: 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 5: 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 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. 1. CABINET BACK REMOVAL Remove 7 screws (3X10), 1 screw (3X6), and 2 screws (4X10) Grasp the bottom of the back and tilt forward to release the hooks.

  • 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. 3. POWER UNIT AND MAIN BOARD REMOVAL 3.1 Remove 4 screws (A) to take off the power unit. 3.2 Remove 4 screws (A) to take off the main board.

  • Page 8

    MECHANICAL DISASSEMBLY (CONT.) 6. SPEAKER REMOVAL Remove the speaker (L) and (R). 7. RC LED BOARD REMOVAL Remove 1 screw (A) to take the RC LED board off. Cabinet Front DEC IND RC LED Board Speaker(L) Speaker(R) – 8 –...

  • Page 9: 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 10

    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 C1624 CEXLB1V471VDN ELECT 470U M C1640 CEXLB1C101VDN ELECT 100U M C016 CK1E105KGMBNG CERAMIC...

  • Page 11

    Schematic Schematic Part No. Part No. Description Description Location Location C5593 CK1A105KLZBNG CERAMIC 1U K C5527 CK1H104ZLZFNG CERAMIC 0.1U Z C5594 CK1A105KLZBNG CERAMIC 1U K C5528 CC1H471JLZCNG CERAMIC 470P J C5529 CC1H471JLZCNG CERAMIC 470P J C5595 CK1A105KLZBNG CERAMIC 1U K C5530 CK1A105KLZBNG CERAMIC...

  • Page 12

    Schematic Schematic Part No. Part No. Description Description Location Location C5750 CK1H104ZLZFNG CERAMIC 0.1U Z C6600 CK1H104ZLZFNG CERAMIC 0.1U Z C5751 CK1H104ZLZFNG CERAMIC 0.1U Z C6601 CK1A105KLZBNG CERAMIC 1U K C5752 CEXLB0J221VEN ELECT 220U M 6.3V C6602 CEXLB1V471VDN ELECT 470U M C5800 CC1H680JLZCNG CERAMIC...

  • Page 13

    Schematic Schematic Part No. Part No. Description Description Location Location IC1690 QXXAVD055—-P IC XC61CN4202MR L1708 1LB4L26B0740G “INDUCTOR , 220 OHM” IC2401 QTC7SH08FU—P IC TC7SH08FU(TE85L) L1709 1LB4L26B0740G “INDUCTOR , 220 OHM” IC2402 QTC7SH08FU—P IC TC7SH08FU(TE85L) L1710 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W IC2403 QLE24C023M-EP IC LE24C023M-TLM-E...

  • Page 14

    Schematic Schematic Part No. Part No. Description Description Location Location Q804 TISA1235AC1EP TR ISA1235AC1E TISA1235AC1FP TR ISA1235AC1F TISA1235AC1FP TR ISA1235AC1F TXXLBB005—-P TR MMBTSA1235F TXXLBB005—-P TR MMBTSA1235F Q5803 T2SC3928A1R-P TR 2SC3928A1R Q805 T2SC3928A1R-P TR 2SC3928A1R T2SC3928A1S-P TR 2SC3928A1S T2SC3928A1S-P TR 2SC3928A1S TXXLBB006—-P TR MMBTSC3928R TXXLBB006—-P...

  • Page 15

    Schematic Schematic Part No. Part No. Description Description Location Location R828 RGF4701JTCANL MT-GLAZE 4.7K JA 1/10W R1022 RGF3303JTCANL MT-GLAZE 330K JA 1/10W R829 RGF1000JTCANL MT-GLAZE 100 JA 1/10W R1036 RGF4700JTCANL MT-GLAZE 470 JA 1/10W R830 RGF1000JTCANL MT-GLAZE 100 JA 1/10W R1037 RGF1001JTCANL MT-GLAZE...

  • Page 16

    Schematic Schematic Part No. Part No. Description Description Location Location R1620 RGF4700FTCANL MT-GLAZE 470 FA 1/10W R1830 1LB4L26B0700G “INDUCTOR , 120 OHM” R1621 RGF1001FTCANL MT-GLAZE 1K FA 1/10W R1831 1LB4L26B0700G “INDUCTOR , 120 OHM” R1622 RGF1002FTCANL MT-GLAZE 10K FA 1/10W R1833 RGF1002JTCANL MT-GLAZE...

  • Page 17

    Schematic Schematic Part No. Part No. Description Description Location Location R2456 RGF1000JTCANL MT-GLAZE 100 JA 1/10W R5700 RGF1000FTCANL MT-GLAZE 100 FA 1/10W R2457 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R5701 RGF1000FTCANL MT-GLAZE 100 FA 1/10W R2458 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R5702 RGG56R0FTHANL MT-GLAZE...

  • Page 18

    Schematic Schematic Part No. Part No. Description Description Location Location R6116 RGF2201JTCANL MT-GLAZE 2.2K JA 1/10W R6381 RGF1000JTCANL MT-GLAZE 100 JA 1/10W R6130 RGF1001JTCANL MT-GLAZE 1K JA 1/10W R6382 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R6201 RGF22R0JTCANL MT-GLAZE 22 JA 1/10W R6384 RGF1002JTCANL MT-GLAZE...

  • Page 19

    Schematic Schematic Part No. Part No. Description Description Location Location R6562 RGF4701JTCANL MT-GLAZE 4.7K JA 1/10W R6565 RGF4701JTCANL MT-GLAZE 4.7K JA 1/10W R6566 RGF1002JTCANL MT-GLAZE 10K JA 1/10W R6567 RGF1002JTCANL MT-GLAZE 10K JA 1/10W R6569 RGF4702JTCANL MT-GLAZE 47K JA 1/10W R6570 RGF4702JTCANL MT-GLAZE...

  • Page 20

    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 A100 1AA0B10N259E0 “ASSY,PWB,MAIN_Z-N7BE”...

  • Page 21: Component And Testpoint Locations

    COMPONENT AND TESTPOINT LOCATIONS MAIN BOARD PARTS SIDE L1640 R1660 R1661 CL14 C1680 C1641 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 22

    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 23

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

  • Page 24: Block Diagram Power Lines

    BLOCK DIAGRAM POWER LINES – 24 –...

  • Page 25: Block Diagram Signal Lines

    BLOCK DIAGRAM SIGNAL LINES – 25 –...

  • Page 26: Ic Block Diagrams

    IC BLOCK DIAGRAMS IC001, Audio AMP – 26 –...

  • Page 27

    IC BLOCK DIAGRAMS (CONT.) IC1670 Voltage Regulator IC803 EEPROM – 27 –...

  • Page 28

    IC1680 DC to DC Regulator IC1600, DC to DC Converter – 28 –...

  • Page 29

    IC BLOCK DIAGRAMS (CONT.) IC5500 Video Processing – 29 –...

  • Page 30

    IC6270, Low output Amplifier IC6600, USB protection – 30 –...

  • Page 31

    IC BLOCK DIAGRAMS (CONT.) IC5700, DDR: Double Data Rate SDRAM – 31 –...

  • 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? 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 33

    TROUBLESHOOTING FLOW CHARTS (CONT.) NO VIDEO Trouble Shooting Video US1K(42/46) 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...

  • Page 34: Digital

    NO AUDIO Trouble Shooting Audio US1K(42/46) 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 35: 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 36

    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 37: 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 NTSC Audi o Pr oc essing...

  • Page 38: 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 39: Ic, Diode, And Transistor Pin Layouts

    IC, DIODE, AND TRANSISTOR PIN LAYOUTS – 39 –...

  • Page 40: Pc Board Connections And Locations

    PC BOARD CONNECTIONS AND LOCATIONS – 40 –...

  • Page 41: 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 April 2009 SMC Published in Mexico.

  • Page 42: Schematic Diagrams

    MODEL DP19649 Chassis No. P19649-00 SCHEMATIC DIAGRAMS J10EA043N ELECTROSTATICALLY SENSITIVE DEVICES Many solid-state devices (especially Integrated Circuits) are Electrostatically Sensitive, R1601 R1603 R1604 1/10GF 1/10GF 1/10GJ 10KC 2.2KC 220C and, therefore, require special handling techniques as described under “Servicing C1609 R1602 1/10GJ4.7KC...

  • Page 43

    MODEL DP19649 Chassis No. P19649-00 SCHEMATIC DIAGRAMS R2449 R6329 IC2445 C2445 R6330 R2447 KZ0.1LZF C6302 1/10GZ0C TC7SH08FUP LVDS_POW KZ0.1LZF 6.5V H_SYNC R2448 L2400 IC6750 C6752 1/10GJ D2401 R2402 *C6303 1/10 L6270 100C GZ0.0 6.3EM220LBVD C6753 R6271 1%%oA 5V_STBY L6750 1/10GZ0.0...

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