Sanyo LED-DP32242 Service Manual
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Sanyo LED-DP32242 Service Manual

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SERVICE MANUAL
LED TV
FILE NO
LED-DP32242
PRODUCT CODE No.: 1-130-292-04
CHASSIS NO. :
SSD32TA-00/ P32242-02
REFERENCE No.:SM0945010-02

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  • Page 1 FILE NO SERVICE MANUAL LED-DP32242 PRODUCT CODE No.: 1-130-292-04 LED TV CHASSIS NO. : SSD32TA-00/ P32242-02 REFERENCE No.:SM0945010-02...

  • Page 2: Table Of Contents

    CONTENTS 1. Safety precautions ....................3 2. Alignment instructions .................... 5 3. Working principle analysis of the unit ..............13 4. Block diagram ...................... 14 5. IC block diagram ....................17 6. Wiring diagram ....................29 7. Troubleshooting guide ..................33 8.

  • 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 (1) Test equipment VG-859 (YPbPr, VGA, HDMI signal generator) FLUKE 54200(TV signal generator) CA210 (white balancer) (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. a) Test the pin voltage of P802/power board , the data is shown in table1: Table1 voltage data of P802 For32”...
  • Page 6 (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 speaker.
  • Page 7 (4) Adjustment instruction At any input source then press the “←”, “EXIT” and “OK” (Remote control) to enter factory mode During Factory menu, if “MENU” key is pushed, system will exit factory mode. (5) Items of Factory menu When in PC/ Component/ Video (Composite)/ ANT inputs then press the “Left -> Exit -> OK” key of remote control to enter factory mode..
  • Page 8 or no” to do the initial or not. Notice: After this item is processed then the DUT needs to be powered off then AC powered off. Full power (For factory test only) This is for power consumption testing. To measure the maximum power consumption of TV set, we adjust the value of following items to maximum.
  • Page 9 59.94 Negitive 59.94Hz 720x480i 31,469 Negitive 59.94 Negitive 59.94Hz 720x480P 1650 Positive 74.25 1280 Positive 60Hz 1280x720P 33.75 2200 Positive 74.25 1920 1125 Positive 1080 60Hz 1920X1080i 67.5 2200 Positive 148.5 1920 1125 Positive 1080 60Hz 1920X1080P 6-4 HDMI terminal Input HDMI signal (VG859 signal generator), separately input the signals listed in table6 and check the display and sound (32 KHz, 44.1 KHz, 48 KHz) at any situation (power on, channel switch and format convert, etc.) Table6 HDMI signal format...
  • Page 10 6-5 other functions check a) Check the turn on/turn off timer, sleep timer, picture/sound mode, OSD, stereo and analog TV Teletext, etc. (7) USB Software updated (1) Insert the USB with the firmware which the file name is matched with the model name in factory mode.

  • Page 11: Working Principle Analysis Of The Unit

    3. Working principle analysis of the unit 1. NTSC signals flow: Antenna signal will be send to tuner ENV56U05D8F, t h e n T u n e r w i l l b e demodulating and output standard video signal TV-CVBS, and sound SIF signal. TV-CVBS will send to the master control IC ZR39748 to video decode, de-interlace and scaler, then output LVDS level drive for panel display.

  • Page 12: Block Diagram

    4. SSD32T Block Diagram 4-1 Block Diagram...
  • Page 13 4-2. Power/B block diagram. a. FSP(1 source) power block diagram.
  • Page 14 b. Chicony(2 source) power block diagram.

  • Page 15: Ic Block Diagram

    5. IC block diagram 1. Zoran ZR748 • Integrated Digital & Analog Demodulator • 8VSB/QAM-B • NTSC/BTSC/A2K • Video Inputs • Three (3) 1080p HDMI (v1.4a/DC)* • One (1) 1080p YPbPr • One (1) VGA, up to WUXGA resolution • Two (2) CVBS*, One (1) S-Video •...
  • Page 16 • 64MByte typical for most designs • Power • 1.1V core voltage, 1.8V memory I/F, 3.3V I/O • Two Package Options • 365-ball BGA, 23x23mm • 256-pin LQFP with e-pad, 28x28mm (*) Slight variation of support with QFP package 1.1. SupraHD 748 IC Description ®...
  • Page 17 • Royalty-free Zoran True Fonts for OSD and closed-captioning • Transport, video decode (single MP@HL), audio decode (AC-3, MPEG Layer I & II), graphics, and display drivers • Drivers for tuner, HDMI and analog inputs • ThreadX royalty-free RTOS 1.2.2. Video Processing •...

  • Page 18: Video Input

    • Vertical scaler - 5-tap FIR, 64-phase FIR - Programmable up scaler [64x] - Programmable down scaler [1/32x] 1.2.3. Video Input • Integrated HDMI link and PHY • Three physical ports (BGA package) - One physical port (QFP package) • Single instance of the PHY •...
  • Page 19 • Standard definition (SD) video inputs • Two (2) CVBS inputs (BGA package) - One (1) CVBS input (QFP package) • One (1) S-Video input • No low-pass filter (LPF) required on SD inputs 1.2.4. Video Output • Gradient recovery •...
  • Page 20 - 82dB dynamic range and -75dB THD A/D conversion - Supported audio sampling rates from 32 to 96 KHz • Up to six (6) channels of audio output, on DDX or I2S lines • Two (2) DDX differential speaker outputs for direct power-stage drive (channels 0-1) - Or four (4) single-ended DDX for analog output (channels 0-3) - Or one (1) stereo I2S output (channels 0-1) I2S data aligned in I2S format;...

  • Page 21: Video Decoders

    1.2.6. Video Decoders • MPEG MP@HL decoder • Decode of a single HD (MP@HL) stream • Decodes of ISO-13818-2 MP@ML, MP@HL • Decode of all ATSC-compliant formats • Slice-level and frame-level error concealment • The decoder engine can decode MPEG-compressed bitstreams as defined in the following specifications: - ISO/IEC 13818-2, “Information Technology - Generic Coding of Moving Pictures and Associated Audio Information: Video,”...
  • Page 22 1.2.7. Front-End Demod / Demux • Integrated 8VSB/QAM-B demodulator • ATSC 8-VSB demodulation - Enhanced 8-VSB multi-path performance with wide equalizer coverage - Superior VSB indoor reception using enhanced equalization and synchronization algorithms, enabling Brazil and other 0 dB ghost reception - Adaptive control loops dependent upon channel conditions for fast channel acquisition and optimal tracking - Advanced doppler ghost rejection...
  • Page 23 • Excellent (110%) over modulation at all white signal (100IRE) • Digital video IF AGC and optional delayed tuner AGC with programmable take over point • AM interference rejection •  B TSC/A2 demodulator • BTSC mono, stereo and SAP DBX decoding for US NTSC TV reception •...
  • Page 24 • IRR input • General-purpose 8-bit ADC with 5 multiplexed inputs • i.e. Voltage monitoring • Sleep timer • Watchdog timer • GPIO interrupt control • Support for A/V input monitoring • Monitors the HDMI inputs for activity • Integrated EDID memory for HDMI inputs and VGA inputs •...
  • Page 25 • Two (2) PWM outputs • Three (3) 2-signal UARTs • Maximum baud rate: 115200 • 16550 compatible • Third UART is allocated to TVuC and shared with main CPU UART • Two (2) I2C master or slave interfaces • Maximum bitrate: 400 Kb/s •...
  • Page 26 2. TEXAS INSTRUMENTS TAS5707L 20-W STEREO DIGITAL AUDIO POWER AMPLIFIER...

  • Page 27: Wiring Diagram

    6. SSD32T 32-inch Wiring Diagram BLOCK...
  • Page 28 II. Wiring Connection SAMSUNG panel Main board to Panel Main board to Speaker SSD32T SSD32T DC02L00410I DC02V03730I 310 mm L:330 & R:730 mm Panel side Main board CN17 Main board CN3 Speaker IS 100-L30O-C23 LVDS cable A2006WV0-2X20P JWT A2001WV2-4P Color LEFT 1 VIN 1 LVDS_PWR...
  • Page 29 17 GND BLACK 4 GND 3 LED_R Orange 4 LED_R 18 LV2_N ORANGE 10 LVDS_D2O_N 5 Light Sensor 19 LV2_P WHITE 9 LVDS_D2O_P 20 GND BLACK 17 GND 21 LVCLK_N BROWN 16 LVDS_CO_N 22 LVCLK_P WHITE 15 LVDS_CO_N 23 GND BLACK 18 GND 24 LV3_N...
  • Page 30 Power/B to Main board Power/B to Panel Inverter/B SSD32T SSD32T DC02P01250I DC02P01590I 400 mm 370 mm Power/B P802 Main board CN2 Power/B P803 Panel BL A2008H00-16P Color A2001H02-16P A2008H00-14P Color A2001H02-14P 1 GND Black 1 GND 1 24Vcc Black 1 24Vcc 2 GND Brown 2 GND...

  • Page 31: Trouble Shooting

    7. Trouble shooting 1. Fault clearance Before calling your dealer or service center for assistance, check the matters below once again. (1) Make sure you have connected LCD TV to your equipment as described in the section “ CONNECTING LCD TV”. (2) Check cable connection.

  • Page 32: Troubleshooting Guide

    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. 2-1 Power LED no light Power LED no Light...
  • Page 33 2-2 Has audio but no video out Check P803 Pin1~5 Change to new power board. P/N: FSP112-4F01 (PK101V1750I) or N112R001L-CP01(PK101V1780I) Has video but no audio out step 1...
  • Page 34 Has video but no audio out step 2 Change to new power board. Check P/N: FSP112-4F01 (PK101V1750I) or R831 N112R001L-CP01(PK101V1780I) Vcc+24V...

  • Page 35: Schematic Diagram

    8.SCHEMATIC DIAGRAM ELECTRON- "...
  • Page 36 PCB1 PCB1 ZR39748 Power Tree (60Hz) AMP_VCC AX1117AD50A VCC5_Tuner For Tuner TO-252 VCC12_0 EMB20P03G LVDS_PWR SOP8 For Panel VCC3_3_IO SOT-23GDS DMP2160U VCC3_3 VTV-L42612 REV:0 VTV-L42612 REV:0 AX1117AD33A VCC3_3_STB TO-252 (TVM_PWR_ON2) 748 3.3V STB power SOT23-5 AX6607 AFE_1V1 (1.1V) (TVM_PWR_ON2) EMIcover-5.3x2.8mm EMIcover-5.3x2.8mm (1.17V) VCC1_1_Core...
  • Page 37 VCC5_0 VCC5_0_STB VCC5_0_STB Reserving for Panel PWM 150Hz. 2011/11/01 (24V) AMP_VCC BKLT_EN VCC3_3 R140 R140 R191 R191 R130 R130 R132 R132 PWM2 R131 R131 560/NC 560/NC 1K/1% 1K/1% 4.7K/NC 4.7K/NC 2.2K/NC 2.2K/NC 22K/NC 22K/NC 1N4148/NC 1N4148/NC R141 R141 0/0402 0/0402 SE100uF/35V SE100uF/35V BL_CNTRL...
  • Page 38 For Development VCC3_3 VCC3_3 I2C_1_SCL 4.7K/0402 4.7K/0402 EJTAG I/F I2C_1_SDA 4.7K/0402 4.7K/0402 VCC3_3 SIO I/F SIO I/F VCC3_3 EJTDI TDI/EJTDI/SNDBUS[20] EJTDO I2C_0_SCL 4.7K/0402 4.7K/0402 TDO/EJTDO/SNDBUS[16] EJTMS EJTAG EJTAG TMS/EJTMS/SNDBUS[15] EJTCK I2C_0_SDA 4.7K/0402 4.7K/0402 TCK/EJTCK/SNDBUS[21] RESETN 47/1%/0402 47/1%/0402 HDR_2X7_2040 HDR_2X7_2040 VCC3_3_STB MCU RESET UART1_TX/GPIO_S[2] UART...
  • Page 39 RUN AS 100 OHM DIFFERENTIAL PAIRS VCC3_3_STB BAT54 BAT54 R399 R399 HDMI0_D2P HDMI_CEC TMDSD2+ DSHLD0 HDMI0_D2N TMDSD2- HDMI0_D1P TMDSD1+ DSHLD1 HDMI0_D1N 2N7002E 2N7002E TMDSD1- HDMI0_D0P TMDSD0+ DSHLD2 HDMI0_D0N TMDSD0- HDMI0_CLKP HDMI_CEC_IN HDMI_CEC_IN TMDSC+ CSHLD0 HDMI0_CLKN TMDSC- HDMI_CEC R358 R358 47K/1% 47K/1% HDMI0_DDC_SCL HDMI0_DDC_SCL...
  • Page 40 I2C clock - 100KHz(recommended) I2C Address 0x32/33(AS open) I2C ADDR 0xC2/0xC3 VCC5_Tuner VCC3_3 FB18 FB18 BLM21PG300SN1D BLM21PG300SN1D 330pF/50V/0402 330pF/50V/0402 R143 R143 10K/1%/0402 10K/1%/0402 R136 R136 10K/1%/0402 10K/1%/0402 ENV56U05D8F ENV56U05D8F C119 C119 C184 C184 C124 C124 C107 C107 C105 C105 C182 C182 C123 C123...
  • Page 41 Component input A/V input IO23 IO23 2x4_CX_COMPO-FIGHTER/NC 2x4_CX_COMPO-FIGHTER/NC R129 R129 LINEOUT_R LINEOUT_L 0/0402/NC 0/0402/NC LINEOUT_R LINEOUT_L IO22 IO22 2x3_CX_COMPO-FIGHTER 2x3_CX_COMPO-FIGHTER FB36 FB36 BLM21PG300SN1D BLM21PG300SN1D Y/CVBS Y/CVBS Coaxial Coaxial 47/1% 47/1% BLM21PG300SN1D BLM21PG300SN1D Y_HD COAX R245 R245 47/1% 47/1% Coaxial P9 VING1 75/1% 75/1%...
  • Page 42 Video IN I/F Video IN I/F AFE_SVIDEO_Y AFE_SVIDEO_C AFE_CVBS1 AFE_CVBS2 VINR1 47nF/16V/0402 47nF/16V/0402 VINR1 AFE_PR VING1 47nF/16V/0402 47nF/16V/0402 VING1 AFE_Y VINB1 47nF/16V/0402 47nF/16V/0402 VINB1 AFE_PB SOY_IN0 AFE_SOY VGA_R 1nF/50V/0402 1nF/50V/0402 AFE_VGA_R VGA_G AFE_VGA_G VGA_B AFE_VGA_B SOG_IN0 AFE_SOG 22pF/50V/0402 22pF/50V/0402 22pF/50V/0402 22pF/50V/0402 VGA_HSYNC_0 22pF/50V/0402...
  • Page 43 Audio OUT I/F Audio OUT I/F NLC322522T-470K/NC NLC322522T-470K/NC R412 R412 0/0402/NC 0/0402/NC R419 R419 150/1%/0402/NC 150/1%/0402/NC LINEOUT1_L DDXOUT_L/SNDBUS[4]/ADATAIO[2] LINEOUT1_R DDXOUT_R/SNDBUS[3]/ADATAIO[1] R418 R418 0/0402/NC 0/0402/NC R423 R423 150/1%/0402/NC 150/1%/0402/NC NLC322522T-470K/NC NLC322522T-470K/NC DDX_LP/SNDSUB[1]/BCLK C303 C303 C304 C304 C305 C305 C306 C306 DDX_LN/SNDSUB[5]/ADATAIO[0] 0.1uF/10V/0402/NC 0.1uF/10V/0402/NC 0.1uF/10V/0402/NC...
  • Page 44 GPIO I/F GPIO I/F BOOT_0 330/0402 330/0402 LRCLK GPIO_P0/SNDBUS[0]/LRCLK LRCLK P14 GPIO1 330/0402 330/0402 BCLK GPIO_P1/SNDBUS[1]/BCLK BCLK P14 100/0402 100/0402 ACLK GPIO_P4/SNDBUS[4]/ACLK ACLK P14 330/0402 330/0402 ADATAIO GPIO_P5/SNDBUS[5]/ADATAIO ADATAIO P14 R188 R188 0/0402 0/0402 GPIO_P6/SNDBUS[6] SPI_WEN P4 SYS_POWER_ON R291 R291 GPIO_P7/SNDBUS[7] LCD_POWER_ON 0/0402...
  • Page 45 MCU I/F MCU I/F Connecting to ground for 10K/1%/0402 10K/1%/0402 ADC8 calibration. FP_KEY_IN1 ADC8_IN0 ADC8_RBIAS FP_KEY_IN2 2011/11/09 ADC8_IN1 VCC3_3_STB Light_Sensor Ask Chris change the ball ADC8_IN2 RESETN RESETN BL_ERR ADC8_IN3 RESET_N name to BOOT_OPT, WDT_EN_N, UART0_TX 4.7K/0402 4.7K/0402 ADC8_IN6 KLB0402E601SA KLB0402E601SA do not confuse customer LED_R...
  • Page 46 S0_DQ[15..0] S0 Memory I/F S0 Memory I/F DDR II DDR II AA15 S0_DQ15 S0_DQ15 S0_DQ15 DQ15 S0_DQ14 S0_A12 S0_DQ14 S0_DQ14 S0_A12 DQ14 AA16 S0_DQ13 S0_A11 S0_DQ13 S0_DQ13 S0_A11 DQ13 S0_DQ12 S0_A10 S0_DQ12 S0_DQ12 S0_A10 DQ12 S0_DQ11 AB11 S0_A9 S0_DQ11 S0_DQ11 S0_A9 DQ11 S0_DQ10...
  • Page 47 3.3V Bypass Capacitors 1.8V Bypass Capacitors VCC3_3 VCC3_3 VCC1_8 10uF/10V/0805 10uF/10V/0805 1nF/25V/0402 1nF/25V/0402 10uF/10V/0805 10uF/10V/0805 1nF/25V/0402 1nF/25V/0402 1nF/25V/0402 1nF/25V/0402 C128 C128 C129 C129 C130 C130 C131 C131 C132 C132 place C129 and C130 close to balls L5 and L6, C133 C133 C141 C141...
  • Page 48 SCD0705T-220M 22uH/1.5A SCD0705T-220M 22uH/1.5A SPK_OUTL+ VCC3_3 DVDD SBK160808T-300Y 0.4A SBK160808T-300Y 0.4A 3.3/1206/NC 3.3/1206/NC C210 C210 AMP_VCC 0.1uF/50V 0.1uF/50V 10uF/10V/0805 10uF/10V/0805 0.1uF/50V 0.1uF/50V 10uF/10V/0805 10uF/10V/0805 0.1uF/50V 0.1uF/50V 10uF/10V/0805 10uF/10V/0805 0.1uF/50V 0.1uF/50V C224 C224 10nF/50V/NC 10nF/50V/NC 4.7nF/50V 4.7nF/50V 4.7nF/50V 4.7nF/50V 0.1uF/50V/NC 0.1uF/50V/NC SPK_OUTL- SCD0705T-220M 22uH/1.5A SCD0705T-220M 22uH/1.5A...
  • Page 49 LVDS TX 1-2 VCC5_0 LVDS & TCON I/F LVDS & TCON I/F LVDS_D0O_N CN17 CN17 LVDS_D0O_N LVDS_D0O_P R437 R437 A2006WV0-2X20P A2006WV0-2X20P LVDS_D0O_P LVDS_D1O_N LVDS_D1O_N LVDS_D1O_P LVDS_PWR LVDS_PWR 10K/0402/NC 10K/0402/NC R438 R438 LVDS_D1O_P LVDS_D2O_N 10K/0402/NC 10K/0402/NC LVDS_D2O_N LVDS_D2O_P LVDS_D2O_P LVDS_D3O_N LVDS_D3O_N LVDS_D3O_P LVDS_CE_P LVDS_CE_N...
  • Page 50 SCHEMATIC DIAGRAM POWER-32"...
  • Page 53 APPENDIX-A: Main assembly DP32242 Version:00 PARTS No. REF. DESCRIPTION REMARK CHASSIS No.： ： ： ： SSD32TAA10I FRONT CABINET CLAPSD32T010I LCD MODULE CLAC6VA3213R2 SPK SET(85d)(PIN20d) CLCG100509I0I PCBA IR/B CL454C3M69L01 POWER PCB BRKT TOP CLECSD32T060I KEY PLATE CLFASD32T040I MAIN PCB CLAMSD32T020I POWER PCB BRKT BOTTOM CLECSD32T040I POWER MODU LPK101V1750I...
  • Page 55 INSTALLATION POSITIONING THE LCD HDTV Installing Stand Always use a firm-flat surface when positioning 1 Place the LCD TV on a flat surface place your HDTV. Do not position the unit in a confined wheremaintained with soft materials (such as a area.
  • Page 56 CANADA SERVICE MANUAL CHANGE LIST DATE Page VERSION CHANGE ITEM 30/ Mar. 1. Cover 1. (LCD TV) change to (LED TV) on the left side. 19/ June 1. Cover 1. Change chassis no. to SSD32TA-00/P32242-02...

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