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Sanyo LCD-DP55441 Service Manual

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SERVICE MANUAL

LCD TV
FILE NO
LCD- DP55441
PRODUCT CODE No.: 113027304
CHASSIS NO. :
P55441-00
P55441-01
REFERENCE No.:SM0945009-01

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Summary of Contents for Sanyo LCD-DP55441

  • Page 1: Service Manual

    FILE NO SERVICE MANUAL LCD- DP55441 PRODUCT CODE No.: 113027304 LCD TV CHASSIS NO. : P55441-00 P55441-01 REFERENCE No.:SM0945009-01...

  • Page 2: Table Of Contents

    CONTENTS 1. Safety precautions ....................3 2. Alignment instructions and method of software upgrading........5 3. Working principle analysis of the unit ..............15 4. Block diagram ...................... 16 5. IC block diagram ....................18 6. Wiring diagram ....................20 7.

  • Page 3: Safety Precautions

    Attention: This service manual is only for service personnel to take reference with. Before servicing please read the following points carefully. Safety precautions 1. Instructions Be sure to switch off the power supply before replacing or welding any components or inserting/plugging in connection wire Anti static measures to be taken (throughout the entire production process!): a) Do not touch here and there by hand at will;...
  • Page 4 2.11 Special care must be taken in transporting or handling it. Exquisite shock vibration may lead to breakage of screen glass or damage to driving circuit. Therefore it must be packed in a strong case before the transportation or handling. 2.12 For the storage make sure to put it in a place where the environment can be controlled so as to prevent the temperature and humidity from exceeding the limits as specified in the manual.

  • Page 5: Alignment Instructions

    2. Alignment instructions 2.1. Test equipment VG-848 (Video, YPbPr and VGA signal generator) VG-849 ( Video, YPbPr, VGA and HDMI signal generator) FLUKE 54200(TV signal generator) CA210 (white balancer) 2.2. Power test Connect main board, power board and IR board according the wiring diagram, connect the power and press power key(Remote controller or Keypad) button to turn on the TV.
  • Page 6 2.3. Alignment flow-chart The alignment flow-chart is shown as fig-1 Check if DDC, HDCP KEY, FLASH are written Combined test for general assembly White balance adjustment Connect to the center signal source and check each Function of TV (station leaking, analog control, etc.) Check the output of earphone and speaker.

  • Page 7: Adjustment Instruction

    2.4. Adjustment instruction At any input source then press the remote controller buttons “<”, “EXIT” and “>” to enter factory mode. During Factory menu, if “MENU” or “EXIT” key is pushed, system will exit factory mode. 2.4-1. Source Calibration 4-1.1. Set the TV input source to YPbPr;...
  • Page 8 4-1.3. Change input source to PC. Change Astro-859 Timing to No.953 (640x480@60Hz) and pattern on 953(8step V-grayscale). Repeat step 4-1.2 to do source calibration, 2.4-2. Color Temperature Adjustment & Check 4-2.1. Set input source. Set the signal generator Astro-859 timing to PG2-924 on Video & YPbPr, PG2-860 on HDMI, and PG2-963 on PC.
  • Page 9 4-2.2. In factory mode OSD menu, select “Color Temperature” item, press “OK” key to enter the item. R, G, B drive values are set for Warm, Medium, and Cool independently. 4-2.3. Set Color Temperature for “Warm”, “Medium” and “Cool” with following spec table. Color temperature(for 42") Color Temp.
  • Page 10 2.5. Items of Factory menu Vendor may customize design and add adjustment items Factory menu as far as all required items are included. Press up and down key can move high light item from Color Temperature Warn -> Color Temperature Medium ->...
  • Page 11 5-1) Color Temperature for Warm Press up or down key can select high light item function. Press enter key to enter the item. Following data for color temp shall be edited manually. -R, G, B data for each preset. -Press “Up” or “Down” key to select “R”, “G”, “B” item -Press “Left”...
  • Page 12 Video: Contrast maximum value, Brightness maximum value, Backlight maximum value. Audio: Volume maximum value. Press right key to turn on Full Power and OSD stay display until press enter key to recover from Full Power. 5-8) Source Calibration Auto Calibration (gain/offset) must be adjusted color by firmware automatic adjustment in PC, and Video3(Component) input source.
  • Page 13 5-14) MEMC Demo Mode To separate screen into two parts that left side is 60Hz and right side is 120Hz for display. 5-15) MEMC Level Changing MEMC level to Weak, Medium or Strong. 2.6. Performance check 6-1 TV function Connect RF to the center signal source, enter Channel menu → Channel Scan, check if there are channels be skipped, check if the picture and speaker are normal.
  • Page 14 6-5 HDMI terminal Input HDMI signal (VG-859 signal generator), separately input the signals listed in table6 and check the display and sound (32KHz, 44.1KHz, 48KHz) at any situation (power on, channel switch and format convert, etc.) Table6 HDMI signal format Horizontal Dot clock Signal mode...

  • Page 15: Working Principle Analysis Of The Unit

    3. Working principle analysis of the unit 1. NTSC/ATSC signal flow: Antenna reception NTSC/ATSC signal will be send to tuner U32, t h e n T u n e r w i l l b e demodulating and output differential IF+ IF- signal . These differential IF+ IF- signal will send to the master control IC U1 to video/MPEGII decode, de- interlace and scaler, then output LVDS level drive for panel display.
  • Page 16 4. Block diagram-SANYO 55” ATSC model System Diagram DDRII 512M ProMOS V59C1512164QDJ25...

  • Page 17: Block Diagram

    Block diagram-POWER-55”...

  • Page 18: Ic Block Diagram

    5.IC block diagram 5-1. Renesas , R8J66977BG-RFJZ Model - SubModel Surround Maximum panel size Number of HDMI ports R8J66977BG-RFJZ Simple surround FullHD (1920 x 1080) Features Main CPU 32bit RISC Super-H architecture SH3 CPU core Demodulator ATSC A/53 compliant 8VSB receiver /w QAM. IF AGC control interface x1ch System decoder (Stream demultiplexer) Video and audio ES stream filtering x1...
  • Page 19 5-2. C7 Block diagram...
  • Page 20 5.3 Pixelworks PA131 Features • • • • Fourth Generation MotionEngine Technology – Significantly improved Content Adaptive Motion Estimation and Motion Compensation (MEMC) using Pixelworks’ proprietary technology – Support for up to 120Hz displays at 1080p and WUXGA resolutions – Progressive hardware film mode detection with 3:2/2:2 inverse pull down and programmable random cadence detection –...
  • Page 21 5-4. PA131 Block diagram...
  • Page 22 55” Block 55" Connection T-Con. Board CN16 LVDS -30 pin CN15 LVDS -40 pin Speaker-4 pin To inverter Inverter Inverter Power-16 pin Main Board Board Inverter-14 pin Board Inverter-14 pin IR / 6 pin Power-16 pin Power Board Inverter Board IR Board Speaker Speaker...
  • Page 23 6.Wiring Connection VTV-L55712 VTV-L55712 VTV-L55712 VTV-L55712 CN15 CN16 1 GND 1 5V 1 VDD 21 GND 1 TX3OUT0M 16 TX3OUT4P 2 GND 2 IR Receive 2 VDD 22 GND 2 TX3OUT0P 17 GND 3.5V 3 12V 3 GND 3 VDD 23 Panel SEL 3 TX3OUT1M 18 GND...
  • Page 24 Power/B P802 P803 P804 1 GND 1 24V 1 24V 2 GND 2 24V 2 24V 3 12V 3 24V 3 24V 4 12V 4 24V 4 24V 5 GND 5 24V 5 24V 6 GND 6 GND 6 GND 7 GND 7 GND 7 GND...
  • Page 25 7. Trouble Shooting 7-1. Fault clearance...

  • Page 26: Troubleshooting Guide

    7-2. Troubleshooting guide The flow chart shown below will help you to troubleshoot your Televison set with it doesn’t display normally. Each procedure offers a simple way to check for system errors. Before starting, ensure that there is a signal in and that the Televison is turned on. 7.2-1 Power LED no light Change to new power board.
  • Page 27 7.2-2 Has audio but no video out P802, pin#16 Change to new power board. P/N : PK101V2540I (SSC55T)
  • Page 28 7.2-3 Has video but no audio out Have a video but no sound MUTE Cancel mute function Check volume or Or adjust volume up Mute Check Input Change source device source Check speaker Change speaker Change main pcb...
  • Page 29 Change to new power board. P/N : PK101V2540I (SSC55T)

  • Page 30: Schematic Diagram

    8.SCHEMATIC DIAGRAM ELECTRON-55"...
  • Page 31 Sheet Index MAIN PCB1 MAIN PCB1 Page 03 - System Power FIRMWARE FIRMWARE Page 04 - C7 & MCU / Key FW SSC55T REV1.0 FW SSC55T REV1.0 Page 05 - C7 & Tuner Input Page 06 - C7 & Video Input EMIcover1 EMIcover1 Page 07 - C7 &...
  • Page 32 3.3V_STB Power Module Input DC - DC FROM VCC TO 1.25V(2A) JWT A2001WV2-16P JWT A2001WV2-16P ACOFF_DET ACOFF_DET B201212K800TM B201212K800TM Audio PW L0805D L0805D 2.2K 2.2K KHB0805W121SA_6A KHB0805W121SA_6A 1.25VD P_DAMP FB68 FB68 P_DAM P G5694 G5694 2.2uH/3.8A 2.2uH/3.8A B201212K800TM/NC B201212K800TM/NC R182 R182 L0805D L0805D...
  • Page 33 3.3V_STB 3.3V_STB 3.3V_STB 3.3V_STB C7 MCU R760 R760 R8J66977BG R8J66977BG 10K/0402 10K/0402 R0402D R0402D BGA1090-1 BGA1090-1 10K/0402 10K/0402 56K/0402 56K/0402 R0402D R0402D R0402D R0402D AB22 TP20 TP20 POWER_ON3 GPIO0 SCISCK0 AB21 MEMC Reset RSTn GPIO1 SCIRXD0 2010/1/3 MEMC UART to VGA romve TP31 TP31 PC_DET...
  • Page 34 close to Tuner Default Setting Samsung tuner 5V_TUNER TUNER & C7 5V_TUNER 4.7K/0402 4.7K/0402 4.7K/0402 4.7K/0402 B201212K800TM B201212K800TM L0805D L0805D C109 C109 10uF/10V/0805 10uF/10V/0805 SAMSUNG 100/0402 100/0402 100/0402 100/0402 R8J66977BG R8J66977BG DTVA50CVH1019B DTVA50CVH1019B C108 C108 0.1uF/10V/0402 0.1uF/10V/0402 BGA1090-1 BGA1090-1 close to Tuner 1-NC 2-B+...
  • Page 35 VIDEO C7 5VSW R8J66977BG R8J66977BG KHB0603Q300SA KHB0603Q300SA AV3_PB_IN AV3_PB KHB0603Q300SA KHB0603Q300SA C146 C146 0.1uF/10V/0402 0.1uF/10V/0402 BGA1090-1 BGA1090-1 AV3_L_IN AV3_AL AV3_AL P9 SSIN1 C137 C137 C159 C159 C141 C141 0.1uF/10V/0402 0.1uF/10V/0402 R104 R104 R115 R115 C176 C176 C177 C177 AV3_Y VIN2A 0.1uF/10V/0402 0.1uF/10V/0402 C144...
  • Page 36 ESD Strategy PC-RED PC-GREEN PC-BLUE 5VA_VGA VGA INPUT INTERFANCE R137 R137 100/NC 100/NC PC_DET PC_DET P4 IO11 IO11 DSUB15P-CONTECK DSUB15P-CONTECK R140 R140 C184 C184 10nF/25V/0402 10nF/25V/0402 D-SUB C7 R8J66977BG R8J66977BG CAB_P PC-RED RED+ BGA1090-1 BGA1090-1 VGA_SDA PC-GREEN R141 R141 C185 C185 10nF/25V/0402 10nF/25V/0402...
  • Page 37 HDMI INPUT IO19 IO19 NIKTTECH/HDMI_SMD_V NIKTTECH/HDMI_SMD_V R169 R169 HPD0 R174 R174 1K/1%/0402 1K/1%/0402 R178 R178 5VD_HDMI0 R173 R173 CH0_SDA HDMI_HPD0 HDMI_HPD0 P4 CH0_SCL PDTC124ET PDTC124ET (RSD) R179 R179 HDMI_CEC CH0_CLK- CLK- 3.3V_STB CLKShield CH0_CLK+ 3.3VA_HDMI 5VD_HDMI0 3.3V_STB 3.3V_STB 3.3V_STB CLK+ CH0_D0- 3.3V_STB R185...
  • Page 38 C203 4.7uF/10V/0805 C203 4.7uF/10V/0805 C0805D C0805D R132 R132 C7 AUDIO IN AV1_AL P6 R161 R161 AV1 (YPbPr Input) AV1_AR P6 C204 4.7uF/10V/0805 C204 4.7uF/10V/0805 C0805D C0805D R136 R136 R166 R166 R8J66977BG R8J66977BG BGA1090-1 BGA1090-1 AINL0 AINR0 C295 4.7uF/10V/0805 C295 4.7uF/10V/0805 C0805D C0805D R133...
  • Page 39 3.3V_STB 10K/0402/NC 10K/0402/NC 10K/0402 10K/0402 10K/0402 10K/0402 10K/0402/NC 10K/0402/NC 10K/0402 10K/0402 10K/0402 10K/0402 10K/0402 10K/0402 R325 R325 R326 R326 R327 R327 R328 R328 R227 R227 R228 R228 R229 R229 R230 R230 10K/0402 10K/0402 R8J66977BG R8J66977BG Debug Port BGA1090-1 BGA1090-1 R294 R294 33/1%/0402 33/1%/0402...
  • Page 40 R8J66977BG R8J66977BG R8J66977BG R8J66977BG 1.8VA_AVD BGA1090-1 BGA1090-1 1.25VD_C BGA1090-1 BGA1090-1 3.3VD_C 1.25VD B201212K800TM B201212K800TM VDD18HDMI 0.1uF/10V/0402 0.1uF/10V/0402 0.1uF/10V/0402 0.1uF/10V/0402 0.1uF/10V/0402 0.1uF/10V/0402 PLL1AVCC VDD12 C225 C225 VDD18HDMI C226 C226 C227 C227 C228 C228 C365 C365 C313 C313 C241 C241 C229 C229 C230 C230 C242...
  • Page 41 Resistor 0402 R8J66977BG R8J66977BG K4T51163QI-HCE7 K4T51163QI-HCE7 BGA1090-1 BGA1090-1 VCCQ18 DDR2-H5PS5162FFR-HYNIX DDR2-H5PS5162FFR-HYNIX DRAM_BA1 R263 R263 22/1%/0402 22/1%/0402 SDBA1 DRAM_A0 DRAM_WE SDWE SDA0 R267 R267 22/1%/0402 22/1%/0402 SDA0 DRAM_A1 DRAM_A2 R266 R266 22/1%/0402 22/1%/0402 SDA2 SDA1 SDA1 DRAM_A2 DRAM_CS R264 R264 22/1%/0402 22/1%/0402 SDCS SDA2...
  • Page 42 R8J66977BG R8J66977BG BGA1090-1 BGA1090-1 C7 LVDS LVDS Video I/F(Debug) LVDS TX 1-2 3.3VD DCR_ADJ CN15 CN15 AA15 A2006WV0-2X20P A2006WV0-2X20P RXCLKINP_2 LV1CKOP 3.3VD R389 R389 0/NC 0/NC DCR_ADJ AB15 CN17 CN17 RXCLKINM_2 P3,4 BACKLIGHT_ADJ LV1CKOM A2006WV0-2X20P A2006WV0-2X20P R391 R391 R424 R424 0/NC 0/NC AA14...
  • Page 43 5VSW SPDIF "Coaxial" B201212K800TM B201212K800TM L0805D L0805D R351 R351 1.5K 1.5K C321 C321 R331 R331 2.2K 2.2K MMBT3904L MMBT3904L 0.1uF/10V/0402 0.1uF/10V/0402 C314 C314 R349 R349 75/1% 75/1% L77 KSI0603R56KA L77 KSI0603R56KA R8J66977BG R8J66977BG SPDIF P6 BGA1090-1 BGA1090-1 0.1uF/10V/0402 0.1uF/10V/0402 C7_SPDIF C7_SPDIF R350 R350...
  • Page 44 3.3VD 3.3VD_AU 3.3/0805 3.3/0805 SMTDR75-15uH/2A SMTDR75-15uH/2A FBMA-300LMT FBMA-300LMT SPK_OUTL+ C701 C701 0.1uF/50V 0.1uF/50V C700 C700 0.1uF/50V 0.1uF/50V C698 C698 0.1uF/50V 0.1uF/50V STA333W STA333W 330pF/50V 330pF/50V C702 C702 R403 R403 4.7/1206 4.7/1206 1nF/50V 1nF/50V DAMP_PDN OUT4A OUT3A FBMA-300LMT FBMA-300LMT OUT4B OUT3B VDD_DIG CONFIG C699...
  • Page 45 RXIN0M_2 RXIN0P_2 RXIN1M_2 RXIN1P_2 RXIN2M_2 RXIN2P_2 RXCLKINM_2 RXCLKINP_2 RXIN3M_2 RXIN3P_2 RXIN4M_2 RXIN4P_2 Put close to U1, pcb U52C U52C trace within 400mil 49.9/1%/0402 49.9/1%/0402 TXOUT0M_1 P13 LVDSRXO1N LVDSTXAO1N 0.1uF/10V/0402 0.1uF/10V/0402 49.9/1%/0402 49.9/1%/0402 TXOUT0P_1 P13 LVDSRXO1P LVDSTXAO1P R122 R122 49.9/1%/0402 49.9/1%/0402 TXOUT1M_1 P13 LVDSRXO2N LVDSTXAO2N...
  • Page 46 MVREF0 DDRV18 U52B U52B C135 C135 RMDM0 R343 R343 22/1%/0402 22/1%/0402 H5PS5162GFR-S6C H5PS5162GFR-S6C MDM0 RMDM1 R344 R344 22/1%/0402 22/1%/0402 470pF/50V/0402 470pF/50V/0402 MDM1 Vref VDDQ0 VDDQ1 R358 R358 100/0402 100/0402 MCK_0P VDDQ2 MCK_0N V18_VDDLA VDDQ3 RMDQSP0 22/1%/0402 22/1%/0402 DQSP0 RMCKEA V18_VDDLA MDQSP0 VDDQ4 RMDQSN0...
  • Page 47 U52A U52A SCL_S 100/0402 100/0402 R387 R387 PA_TDI TWOWSCL0 SDA_S SDA_S R384 R384 100/0402 100/0402 PA_TMS TWOWSDA0 100/0402 100/0402 PA_TCK TWOWSCL1 PA_TRST R114 R114 JWT A2001WV2-4P JWT A2001WV2-4P 100/0402 100/0402 R400 R400 R385 R385 R364 R364 TWOWSDA1 TRSTN 2010 / 12/ 16 R383 change to 1K R382 R382...
  • Page 48 DPLLVDD1V LPLLVDD1V VDDDLL1V LVRAVDD1V VDD1V C103 C103 C106 C106 C390 C390 C132 C132 C107 C107 C114 C114 C375 C375 C362 C362 C116 C116 C382 C382 C355 C355 C122 C122 C361 C361 C393 C393 1uF/6.3V/0402 1uF/6.3V/0402 470pF/50V/0402 470pF/50V/0402 1uF/6.3V/0402 1uF/6.3V/0402 470pF/50V/0402 470pF/50V/0402 470pF/50V/0402 470pF/50V/0402...
  • Page 49 V33A B201212K800TM B201212K800TM L0805D L0805D PA131 V10 (0.93V~1.2V) C757 C757 C755 C755 C756 C756 DC - DC FROM VCC TO 1.08V(3A) 10uF/10V/0805 10uF/10V/0805 10nF/25V/0402 10nF/25V/0402 0.1uF/10V/0402 0.1uF/10V/0402 C0805D C0805D DC - DC FROM VCC TO 3.3V(2A) B201212K800TM B201212K800TM L0805D L0805D B201212K800TM B201212K800TM B201212K800TM...
  • Page 50 SCHEMATIC DIAGRAM POWER 55”(P554410-00)
  • Page 51 12Va/1.72A L203 12Va PRIMARY SECONDARY P801 F101 LF101:1 24Vi/10.8A TH101 LF103:1 LF102:1 D201 BD101 L601 24Vi C120 R104 C601 C602 R127 D105 D202 R105 T101:8 D103 R121 R106 C603 U101 Q101 LF103:2 R123 12Vcc/1.0A LF101:2 LF102:2 R107 T101:11 D204 L202 N.C.
  • Page 52 DP55441-00 DP55441-01 APPENDIX-A: Main assembly DP55441 Version:01 REF. PARTS No. REMARK DESCRIPTION CHASSIS No.： ： ： ： CHASSIS No.： ： ： ： CHASSIS No.： ： ： ： SSC55TTA10I SSC55TTZ10I SSC55TGA11I ← ← FRONT CABINET CLAPSC550000I SPK SET(SSA19I) CLCG101016C0I ← ← IR PCB ASS'Y CL454C2U69L01 ←...
  • Page 54 Removing or Installing the Stand Cautions: 1. Carefully handle the unit during setup and consult authorized service personnel to ensure successful installation. 2. Before performing work spread cushioning over the base area to lay the Display on. This will prevent it from being damaged.
  • Page 55 CANADA SERVICE MANUAL CHANGE LIST DATE Page VERSION CHANGE ITEM 13 / July 2011 1. Cover page 1. Add the Chassis no.: P55441-01 2. Page 52 ( part list) 2. Add the SSC55TTZ10I & SSC55TGA11I item on the part list.

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