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Sanyo DP50749 Service Manual

Remote control digital color television
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Sanyo Service Tip
SYMPTOM:
If the power LED on front of the TV is turning ON for 10-20 seconds, OFF for
1-2 second and keeps repeating, the problem is most likely IC5750A. Affected models are
the 2009 & 2010 TVs (LCD and Plasma) listed.
IC5750A is located under the large shield. IC 5750A is a 48 pin NAND FLASH IC with
easy access for replacement. This will fix +80% of the boards with the symptom below.
Sanyo Part Number: QXXAVD058- - -M
Chassis
IC 5700
Version
Samsung
P37819-00
SW84
P42849-00
SW84
P42849-01
SW84
P42849-02
SW84
P42849-04
SW84
P42849-05
SW84
P46849-00
SW84
P46849-01
SW84
P46849-02
SW84
P46849-03
SW84
P46819-00
SW84
P50749-00
SW84
P50749-01
SW84
P50749-02
SW84
P50749-03
SW84
P50719-00
SW84
P52449-01
SW85
P42840-02
SW84
P42840-03
SW84
P42840-04
SW84
P46840-01
SW84
P46840-02
SW84
P50740-01
SW84
IC 5700
Quimonda
SW82
SYMPTOM:
SW82
for 10-20 seconds, OFF for 1-2 second and keeps repeating, the
SW82
problem is most likely IC5750A. Affected models are the 2009 &
SW82
2010 TVs (LCD and Plasma) listed.
SW82
SW82
SW82
SW82
SW82
SW82
SW82
SW82
SW82
SW82
SW82
SW82
IC5750 to be replaced
SW83
The IC 5750A you receive will have software 84 installed in it. If
SW82
SW82
IC 5700's manufacture is Quimonda or TV is a 52" then the
SW82
software will need to be changed with the use of a USB drive.
SW82
SW82
Note : Only use this software in the Sanyo TVs listed.
If used in wrong chassis, it could cause TV not to come
SW82
on and IC 5750 will need to be changed again.
USIK / YX6E CHASSIS
You must use the 3
dashes when ordering
this IC.
If the power LED on front of the TV is turning ON
Check IC manufacture for either Samsung or Quimonda
07/27/12

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Table of Contents
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  Summary of Contents for Sanyo DP50749

  • Page 1 SW84 SW82 P46840-02 SW84 SW82 Note : Only use this software in the Sanyo TVs listed. If used in wrong chassis, it could cause TV not to come P50740-01 SW84 SW82 on and IC 5750 will need to be changed again.
  • Page 2 This self test is only for the DP50749-00, with the Samsung panel. DP50749-00 The self test will not work with the Panasonic panel. Panel: Self Test Panel is capable of generating internal patterns without the Main Signal Board attached. (rotating: white / red / green / blue / and...
  • Page 5: Table Of Contents

    HEIGHT ....... 842mm DEPTH INCLUDING BASE ....360mm DP50749, J4FE, PRODUCT CODE 1-110-109-04 REFERENCE No.
  • Page 6: 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 7: 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 8: On-Screen Service Menu

    ON-SCREEN SERVICE MENU Table 1. ON-SCREEN SERVICE MENU When IC801 (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 (HDMI)
  • Page 9: Power Failure Circuit

    POWER FAILURE CIRCUIT Check the following if the unit is turned off by the power CPU (IC800) is programmed so the set will go to standby failure detector. mode when there is circuit failure as described below. (Refer to“Block Diagram Power Lines”.) 1.
  • Page 10: 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.
  • Page 11 MECHANICAL DISASSEMBLY (CONT.) 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 MAIN BOARD REMOVAL Remove 10 screws (D3x12, 3 pcs;...
  • Page 12 MECHANICAL DISASSEMBLY (CONT.) 3: SPEAKER REMOVAL 1: KEW SW BOARD REMOVAL Remove 4 screws (A: 4x10) to take off each speaker. Remove 1 screw (D: 3x12) to take the key sw board off. 2: RC LED REMOVAL Remove 1 screw (H:3x6) to take the rc led board off. KEY SW Board RC LED Board Speaker...
  • Page 13 MECHANICAL DISASSEMBLY (CONT.) 3. Remove 18 screws (F3x6) to take the mounting filter (6 pcs) and filter glass off. Mounting Filter Filter Grass PANEL MODULE REMOVAL 1. Disconnect the following socket connections. 2. Remove 6 screws (J:4x14) from the panel holders PDP Module (Power Unit) ~ Main Board: P813 (Mounting Frames) to take the panel module off.
  • Page 14: 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 15 Schematic Schematic Part No. Part No. Description Description Location Location CAPACITORS C1611 CK1H104ZLZFNG CERAMIC 0.1U Z C1612 CK1A105KLZBNG CERAMIC 1U K C016 CK1E105KGMBNG CERAMIC 1U K C1613 CK1E103KMNBNG CERAMIC 0.01U K C017 CEXLB1E102VEJ ELECT 1000U M C1614 CK1H103KLZBNG CERAMIC 0.01U K CE1E102MZVANC ELECT 1000U M...
  • Page 16 Schematic Schematic Part No. Part No. Description Description Location Location C5513 CK0J105KMNBNG CERAMIC 1U K C5583 CK0J105KMNBNG CERAMIC 1U K C5517 CK0J106KGMBNG CERAMIC 10U Z 6.3V C5584 CK1E103KMNBNG CERAMIC 0.01U K C5518 CK0J105KMNBNG CERAMIC 1U K C5585 CK0J105KMNBNG CERAMIC 1U K C5519 CK0J105KMNBNG CERAMIC...
  • Page 17 Schematic Schematic Part No. Part No. Description Description Location Location C6250 CK1H104ZLZFNG CERAMIC 0.1U Z C5709 CK0J106KGMBNG CERAMIC 10U Z 6.3V C5710 CK0J105KMNBNG CERAMIC 1U K C6251 CK1H104ZLZFNG CERAMIC 0.1U Z C5711 CK1C104KMNBNG CERAMIC 0.1U K C6252 CEXLB1V470VDJ ELECT 47U M C5712 CK0J105KMNBNG CERAMIC...
  • Page 18 Schematic Schematic Part No. Part No. Description Description Location Location DIODES IC5730 QXXAVD076—-G IC PQ018EHS2ZPH IC5750 QXXAAJQ0972— IC HY27US08561A N7AE D001 DD1SS352——G DIODE 1SS352-(TPH3) IC5750A QXXAVD058—-M IC HY27US08561A DD1SS355——G DIODE 1SS355-TE-17 IC5900 QXXAVD046—-P IC XC6108N28AMR D800 DD1SS352——G DIODE 1SS352-(TPH3) IC6250 QCS4352-CZZ-P IC CS4352-CZZ DD1SS355——G...
  • Page 19 Schematic Schematic Part No. Part No. Description Description Location Location L1655 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W TRANSISTORS L1662 1AV4L2FB3R3MG “INDUCTOR,3.3U M” Q001 TXXLBB006—-P TR MMBTSC3928R L1673 1AV4L2WK560MN “INDUCTOR,56U M” T2SC3928A1R-P TR 2SC3928A1R 1LB4L26B1030N “INDUCTOR,56UH” T2SC3928A1S-P TR 2SC3928A1S L1678 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W Q800 TXXLBB006—-P TR MMBTSC3928R...
  • Page 20 Schematic Schematic Part No. Part No. Description Description Location Location T2SC3928A1R-P TR 2SC3928A1R Q6523 TXXLBB006—-P TR MMBTSC3928R T2SC3928A1S-P TR 2SC3928A1S T2SC3928A1R-P TR 2SC3928A1R Q1802 TXXLBB006—-P TR MMBTSC3928R T2SC3928A1S-P TR 2SC3928A1S T2SC3928A1R-P TR 2SC3928A1R Q6530 T3LN01C-E—-P TR 3LN01C-TB-E T2SC3928A1S-P TR 2SC3928A1S Q6553 TXXLBB006—-P TR MMBTSC3928R...
  • Page 21 Schematic Schematic Part No. Part No. Description Description Location Location R847 RGF4701JTCANL MT-GLAZE 4.7K JA 1/10W R1047 RGF1503JTCANL MT-GLAZE 150K JA 1/10W R848 RGF4701JTCANL MT-GLAZE 4.7K JA 1/10W R1048 RGF2203JTCANL MT-GLAZE 220K JA 1/10W R851 RGF1000JTCANL MT-GLAZE 100 JA 1/10W R1049 RGF1000JTCANL MT-GLAZE...
  • Page 22 Schematic Schematic Part No. Part No. Description Description Location Location R1659 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R2406 RGF1503JTCANL MT-GLAZE 150K JA 1/10W R1660 RGF1002JTCANL MT-GLAZE 10K JA 1/10W R2407 RGF2203JTCANL MT-GLAZE 220K JA 1/10W R1661 RGF6801FTCANL MT-GLAZE 6.8K FA 1/10W R2408 RGF1503JTCANL MT-GLAZE...
  • Page 23 Schematic Schematic Part No. Part No. Description Description Location Location R5822 RGF6800JTCANL MT-GLAZE 680 JA 1/10W R5532 RGF1000FTCANL MT-GLAZE 100 FA 1/10W R5533 RGF1002JTCANL MT-GLAZE 10K JA 1/10W R5823 RGF6800JTCANL MT-GLAZE 680 JA 1/10W R5534 RGF4701JTCANL MT-GLAZE 4.7K JA 1/10W R5824 RGF6800JTCANL MT-GLAZE...
  • Page 24 Schematic Schematic Part No. Part No. Description Description Location Location R6261 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R6529 RGF1002JTCANL MT-GLAZE 10K JA 1/10W R6270 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R6530 RGF1002JTCANL MT-GLAZE 10K JA 1/10W R6271 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R6531 RGF1002JTCANL MT-GLAZE...
  • Page 25 Schematic Schematic Part No. Part No. Description Description Location Location R6623 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W MISCELLANEOUS R6624 RGF1002JTCANL MT-GLAZE 10K JA 1/10W A3900 1AV4U20C11701 “UNIT,REMOCON RECEIVER” R6630 RGF4701JTCANL MT-GLAZE 4.7K JA 1/10W A6100 1AV4F1BAZ0100 “TUNER,U/V” R6631 RGF2203JTCANL MT-GLAZE 220K JA 1/10W EL901 1AV4T44B02600 “PDP MODULE”...
  • Page 26: Component And Testpoint Locations

    COMPONENT AND TESTPOINT LOCATIONS MAIN BOARD PARTS SIDE L1750 L1752 IC1700 C1704 K1003 C020 C024 C029 C040 C044 C046 L1735 L1755 C026 C042 SC1001 L1751 C1000 R1077 K801 L1754 R1857 R1858 C047 K_JIGU C025 C030 C041 C045 K1004 C819 C016 L006 R883 L007...
  • Page 27 MAIN BOARD SOLDER SIDE C1000 K1003 L1753 L1752 D1701 R1704 R1703 R1702 C1700 R1701 K801 Q1701 C043 C027 A30C5 K_JIGU C1664 K802 R814 Q802 C017 R815 R812 L1679 R849 R820 R850 L1678 R817 R853 L1660 C1001 R874 R822 R858 R1688 R1833 R857 R872...
  • Page 28 CONTROL BOARD PART SIDE SW1901 SW1902 SW1903 SW1904 SW1905 POWER VOL.+ VOL.- CH.+ CH.- PWB,KEY_SW N7AE L1901 1AA4B10N2320A A30C5 K19CTRA K19CTR (3PIN) (8PIN) CONTROL BOARD SOLDER SIDE SW1902 SW1905 SW1904 SW1903 SW1901 L1901 PWB,KEY_SW N7AE 1AA4B10N2320A K19CTRA (3PIN) A30C5 K19CTR (8PIN) PWB RC_LED PART SIDE PWB RC_LED SOLDER SIDE...
  • Page 29: Block Diagram Power Lines

    BLOCK DIAGRAM POWER LINES – 25 –...
  • Page 30: Block Diagram Signal Lines

    BLOCK DIAGRAM SIGNAL LINES – 26 –...
  • Page 31: Ic Block Diagrams

    IC BLOCK DIAGRAMS IC001, Audio AMP – 27 –...
  • Page 32 IC BLOCK DIAGRAMS (CONT.) IC1660, DC to DC Converter IC801, EEPROM – 28 –...
  • Page 33 IC1670, DC to DC Converter IC1640, DC to DC Converter – 29 –...
  • Page 34 IC BLOCK DIAGRAMS (CONT.) IC5500 Block Diagram – 30 –...
  • Page 35 IC6300, Low output Amplifier IC6601, USB Protection – 31 –...
  • Page 36 IC BLOCK DIAGRAMS (CONT.) IC5700, DDR: Double Data Rate SDRAM IC6502, I2C SELECTOR – 32 –...
  • Page 37: Troubleshooting Flow Charts

    TROUBLESHOOTING FLOW CHARTS NO POWER – 33 –...
  • Page 38: Digital

    TROUBLESHOOTING FLOW CHARTS (CONT.) NO VIDEO 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 Check:...
  • Page 39 TROUBLESHOOTING FLOW CHARTS (CONT.) 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:...
  • Page 40: Control Port Functions

    CONTROL PORT FUNCTIONS System Control (CPU : IC800) Name Function Description 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 41 Name Function Description 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 Main clock input (8MHz ceramic oscillator)
  • Page 42: Main Sheet Block Diagram & Periphericals

    MAIN SHEET BLOCK DIAGRAM & PERIPHERICALS USB Power SW +1.1V/ +1.8V/ +3.3V DDR2 NAND Flash +12V +9V/ +12V 512Mb (533MHz) (256Mb) fault +24V +12V Write protect Reset RF-IN X243 USB2.0 Digital/ 8VSB/QAM Analog DEMUX Tuner MPEG2 Demod. Video Video1 USB1.1 Decode S-Detect (Composite/S)
  • Page 43: 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 44: Ic, Diode, And Transistor Pin Layouts

    IC, DIODE, AND TRANSISTOR PIN LAYOUTS – 40 –...
  • Page 45: Pc Board Connections And Locations

    PC BOARD CONNECTIONS AND LOCATIONS – 41 –...
  • Page 46: 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 47: Schematic Diagrams

    MODEL DP50749 Chassis No. P50749-00 SCHEMATIC DIAGRAMS ELECTROSTATICALLY SENSITIVE DEVICES J10EA043N Many solid-state devices (especially Integrated Circuits) are Electrostatically Sensitive, and, therefore, require special handling techniques as described under *C1618 *C1613 R1614 1/10GJ 25KK0.01MN 25KK0.01MN L1618 2.2KC “Servicing Electrostatically Sensitive Devices,” on page two in this service literature.
  • Page 48 MODEL DP50749 Chassis No. P50749-00 SCHEMATIC DIAGRAMS R6250 C6251 C6252 IC5700 <HYB18TC512160CF-1.9> L6250 R6251 C6250 1/10GZ0C 35EM B4L26B0740G KZ0.1LZF KZ0.1LZF QXXAVD057P 47LBVD D3.3V MEM_DQA[0-15] L6251 C6259 IC6250 L2FB3R3MG D1.8V_DDR 6.3KK10GMB CS4352-CZZP SN6251 C5703 C5709 C5712 GND GND 6.3KK10GMB 6.3KK10GMB R6257 6.3KK1MN...