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Sanyo LCE-32R83DT Service Manual
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Sanyo LCE-32R83DT Service Manual

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SERVICE MANUAL
LED-LCD TV
FILE NO.
LCE-32R83DT
PRODUCT CODE No.
PRODUCT CODE No.
1 682 352 15: PAL/SECAM
INPUT
1
2
3
4
5
6
7
8
9
FREEZE
0
SLEEP
DISPLAY
ENTER
MENU
EXIT
MUTE
VOL
CH
FAVORITE
FUNCTION
TTX
ZOO M
MIX
AUTO/STEREO
INDEX
PICTURE
SUBTITLE
SOUND
TEXT/USB
REFERENCE No.:SM0915239
-B/G, D/K, I
NTSC(AV)

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  • Page 1 FILE NO. LCE-32R83DT SERVICE MANUAL PRODUCT CODE No. PRODUCT CODE No. 1 682 352 15: PAL/SECAM -B/G, D/K, I NTSC(AV) LED-LCD TV INPUT FREEZE SLEEP DISPLAY ENTER MENU EXIT MUTE FAVORITE FUNCTION ZOO M AUTO/STEREO INDEX PICTURE SUBTITLE SOUND TEXT/USB...

  • Page 2: Table Of Contents

    CONTENTS Safety precautions………………………………………………………………………..… Alignment instructions …………………………….…….………………………………… Software upgrade instructions .................. Working principle analysis……………………………….………….…………....Block diagram…………………………………..………………………………….………… IC block diagram………………………………………………………………………..…… Wiring diagram ……………………………………………………………………………. Troubleshooting flow chart ………………………………………………………………..…… Schematic diagram………………………………………………………………………… APPENDIX-A: Assembly list APPENDIX-B: Exploded View Assembling the Stand WALL MOUNTING INSTRUCTIONS...

  • 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.
  • Page 4 would be unable to work and no way to get it repaired. If the connection wires, connections or components fixed by the thermotropic glue need to disengage when service, please soak the thermotropic glue into the alcohol and then pull them out in case of dagmage.
  • Page 5 Adjustment Instructions Safety Instructions 1.1 Power supply must be cut off when replacing or welding any component or inserting / pulling out connective lines; 1.2 Anti-electrostatic measures must be carried out during the whole producing processes! Do not touch IC by hands at will; Use anti-electrostatic iron;...

  • Page 6: Alignment Instructions

    Typical(V) 24.0 12.0 5.00 5.00 5.00 3.30 5.00 Max. (V) 23.6 12.6 5.35 5.35 5.35 3.35 5.07 3.14 Model LC-29ME70/LE-32ME77 for domestic market, all-in-one model LE-29/32/39ME83, model LC-24ME70/LC-24ME77 Test voltage of X301 each pin on power board in turn shown as Table 3(a): Table 3(a) Voltage of X301 each pin X301 Pin 1、2...
  • Page 7 4 Adjustment Instructions 4.1 The unit adjustments 4.1.1 According to the wiring diagram “9232ME7001JL”, connect power/backlight board assembly, data processing assembly, IR/Key board assembly correctly, supply with power, turn on the TV set. Check display. 4.1.2 Factory menu instruction a) Press key “INPUT”, press digital keys “2、5、8、0” in turn to enter into primary factory menu; b) Press keys “...
  • Page 8 d）BBY：Insignia-Dynex TV Spec Part of chromatic coordinates are listed as Fig. 2: Fig.2 Chromatic coordinates of white balance 4.2.2 Four groups of white balance adjustments 4.2.2.1 DVI channel adjustment (HDMI,USB channel with the same adjustment method of this one) Input signal (VG848 Timing: 854，PAT: 921 (16-gray-step)), enter into factory menu page Color Temp, fix item G-GAIN, adjust items R-GAIN、B-GAIN to set chromatic coordinates of the reversed scale as the date of NORMAL;...
  • Page 9 R OFF/ B OFF to be up to the requirements and then save the date. 4.2.2.4 AV channel adjustment（TV channel with the same adjustment method of this one） Input signal (VG848 Timing: 969，PAT: 921 (16-gray-step)), enter into factory menu page Color Temp, fix item G-GAIN, adjust items R-GAIN、B-GAIN to set chromatic coordinates of the reversed scale as the date of NORMAL;...
  • Page 10 3）Clear up the date of channel and favorite list; 4）Menu language: simplified Chinese 6.2 SANYO Models for Middle East market （1）Reset default date of picture mode (TV channel picture mode: STANDARD, TV channel color temperature: NORMAL; VGA channel picture mode: STANDARD, VGA channel color temperature: WARN;...
  • Page 11 （3）Menu language: English 6.3 Models for domestic market or South Africa market (1) Reset default date of picture mode (Picture mode of all channels: STANDARD, color temperature of all channels: NORMAL, VGA channel color temperature: WARN ); reset sound mode as SANDARD and the volume as 20;...

  • Page 12: Software Upgrade Instructions

    Fig. 4 AUTO upgrading interface 8.4 Click option Config Setting in AUTO interface, set option Protect as All Protect, and set option SRWD as Enable, then click ‘OK’ to complete write-protect setup. Make sure the above both options are reset when executing ALL-100 upgrading software again after exiting it. If there is no option SRWD, please upgrade ALL-100 upgrading software.
  • Page 13 9 HDCP KEY upgrading methods 9.1 Connect to upgrading device; 9.2 Execute file ISP_ToolV1.04.exe which interface is shown as Fig. 6; Location address: 0x3B0000 Information frame Fig. 6 ISP tool 9.3 Click button “Open” to load encrypted KEY file; 9.4 Click button “Run” to begin KEY upgrading. upgrading information will display in the information frame after upgrading completed.
  • Page 14 Fig. 7 Device configuration dialog c) Select label Config to make configuration shown as Fig. 8; Fig. 8 Config configuration dialog Note: I2C speed is set as about 60% commonly and should not be set too fast. If it is not easy to connect successfully, please set I2C speed slower.
  • Page 15 Fig. 9 Successful connect interface f) Click button “Run” to begin software upgrading after successful connection . Please refer to Fig. 10; Fig. 10 Software upgrading interface g) Successful software upgrading interface is shown as Fig. 11;...
  • Page 16 Fig. 11 Successful software upgrading interface 10.3 Software upgrading method from USB port (it is advised to use the method if the picture could not display because of wrong panel parameters) a) Copy file offered by RD department to the root directory of U disk. Note that the file name must be MERGE.bin and kept in the root directory of U disk.

  • Page 17: Working Principle Analysis

    Working principle analysis of the unit RF signal from antenna is sent into Tuner chip N401 to be processed by HF-amplifier and mixer to get digital IF signal DIF, then DIF signal is sent to main chip N101（MST6E182VG）. HDMI signal is sent to HDMI switch chip N201 to be switched by three-way-signal-selection switch and then sent to main chip N101 （MST6E182VG）.

  • Page 18: Block Diagram

    Block Diagram SPI FLASH Panel LVDS TUNER SPEAKER YPbPr MST6E182VG S 6 182 G HDMI 1 HDMI 2 HDMI 2...

  • Page 19: Ic Block Diagram

    IC Block Diagram 1、 MST6M181VG/MST6M182VG...
  • Page 20 MST6M181VG/MST6M182VG...
  • Page 21 MST6M181VG/MST6M182VG...
  • Page 22 MST6M181VG/MST6M182VG...
  • Page 23 MST6M181VG/MST6M182VG...
  • Page 24 MST6M181VG/MST6M182VG...
  • Page 25 MST6M181VG/MST6M182VG...
  • Page 26 2、 IT6633 Pin Diagram TXPWR5V CHPD REXT CSDA ARX2P CSCL ARX2M CRXCM CRXCP ARX1P CPWR5V ARX1M CRX0M CRX0P ARX0P ARX0M CRX1M CRX1P ARXCP ARXCM CRX2M ASCL CRX2P ASDA RESET Figure 1. IT6633 pin diagram...
  • Page 27 IT6633 Pin Description TMDS High Speed Differential Input Pins (All these pins provide ±8kV HBM ESD Protection) Pin Name Direction Description Type Pin No. ARX2P Input Channel 2 positive input of Port A TMDS ARX2M Input Channel 2 negative input of Port A TMDS ARX1P Input...
  • Page 28 IT6633 TXCP Output Clock channel positive output of output port TMDS TXCM Output Clock channel negative output of output port TMDS DDC, HPD and PWR5V Control Pins Pin Name Direction Description Type Pin No. ASCL Port A DDC bus clock line 5V-Tol.
  • Page 29 IT6633 Power and Ground Pins Pin Name Description Type Pin No. Chip power supply (3.3V) Power 12, 22, 38, 61 Chip ground Ground 9, 25, 41, 58...
  • Page 30 3、 TAS5707, TAS5707A 48-TERMINAL, HTQFP PACKAGE (TOP VIEW) PHP Package (Top View) 48 47 46 45 44 43 42 41 40 39 38 37 OUT_A OUT_D PVDD_A PVDD_D PVDD_A PVDD_D BST_D BST_A GVDD_OUT GVDD_OUT VREG SSTIMER TAS5707 OC_ADJ AGND AVSS DVSS PLL_FLTM DVDD...
  • Page 31 TAS5707, TAS5707A PIN FUNCTIONS TYPE TERMINATION DESCRIPTION TOLERANT NAME AGND Analog ground for power stage AVDD 3.3-V analog power supply AVSS Analog 3.3-V supply ground BST_A High-side bootstrap supply for half-bridge A BST_B High-side bootstrap supply for half-bridge B BST_C High-side bootstrap supply for half-bridge C BST_D High-side bootstrap supply for half-bridge D...
  • Page 32 TAS5707, TAS5707A PIN FUNCTIONS (continued) TYPE TERMINATION DESCRIPTION TOLERANT NAME SSTIMER Controls ramp time of OUT_X to minimize pop. Leave this pin floating for BD mode. Requires capacitor of 2.2 nF to GND in AD mode. The capacitor determines the ramp time. STEST Factory test pin.

  • Page 33: Wiring Diagram

    Wiring Diagram Panel Ｍａｉｎ　ｂｏａｒｄ　ａｓｓｅｍｂｌｙ Pｏｗｅｒ　ｂｏａｒｄ　ａｓｓｅｍｂｌｙ Ｋｅｙ　ｂｏａｒｄ　ａｓｓｅｍｂｌｙ ＩＲ　ｂｏａｒｄ　ａｓｓｅｍｂｌｙ...

  • Page 34: Troubleshooting Flow Chart

    Troubleshooting flow chart 1. No raster, no picture, no sound. No raster, no picture, no sound Does power indicator light up? Check 12V_STB Press button POWER of remote control or unit to turn on the TV set, then check if C333(5V) are normal or not? Disconnect power board from data...
  • Page 35 2. No picture, but sound is normal. No picture, but sound is normal. Are LOGO and OSD normal? Check if current channel that Check LVDS connection OSD displays is normal or not? HDMI TV/AV/VGA/ Check if power voltage of YPbPr panel backlight and backlight control pin X301-6# (3V) are normal or not?
  • Page 36 3. No sound, but the picture is normal. No sound, but the picture is normal. Check if there is output from X402? Check power 12/24V supplied Connection to speakers or for C348 is normal or not? speakers have problem. Check V309 and its power circuits...

  • Page 37: Schematic Diagram

    2.5V_PGA 1.2V 1.8V_DDR2 ADC2P5 AVDD_33 AVDD_33_PM 3.3V L103 AVDD_33 3.3V_STB L107 AVDD_33_PM 1.2V 120ohm 3A 120ohm 3A 1.26V R133 DDR1 2.5V 2.5V 3.3V 002:A1 HOTPLUGD DDR2 1.8V RXCKN_D RXCKP_D MVREF 001:H2 RX0N_D MVREF 2.2u C127 1.8V_DDR2 RX0P_D DVDD_NODIE C129 RX1N_D 100n C128 RX1P_D...
  • Page 38 HDMI 3.3V_HDMI X201 YPBPR_PR 001:A3 3.3V_HDMI HDMI2_RX2+ HDMI2_RX2- R249 HDMI2_RX1+ HDMI_EN 001:E5 HDMI2_RX1- YPBPR_PB 001:A3 R250 HDMI2_RX0+ HDMI_HPD 001:A2 HDMI2_RX0- R224 R251 HDMI2_RXC+ HDMI2_HPD HDMI_SDA 001:A3 BHPD TXSDA YPBPR_Y 001:A3 HDMI2_RXC- HDMI2_SDA BSDA TXSCL HDMI_SCL 001:A3 R252 CEC 001:A2;002:A2 HDMI2_SCL H D M I _ R X C - 001:A2 BSCL...
  • Page 39 5V_STB N303 R305 12V_STB MP1494 C322 R366 V301 100n 5. 0 9 V 3 .3 7 V 1 5 0 mA BC847AW V311 R314 N306 L301 5V_STB 5V_STB 3.3V_STB AO3401A 3.3V V303 R351 NR6045T4R5M POWER_ON 001:E3;003:D3;003:D5;003:H2 AP1117-ADJ BC847AW EN/SYNC R352 R338 D303 R362...
  • Page 40 3.3V L417 3.3V_AMP 120ohm 3A 3.3V L407 3.3V_TUNER 120ohm 3A R430 12V_AMP 002:H3 POWEROFF_MUTE 3.3V_TUNER 3.3V_RFA R432 L408 D403 LL4148 R434 R435 C440 15nH 531A3A51H0 BC857AW C448 V401 C441 D404 2.2n L419 4.7n LL4148 NR6045T150M C449 1.9A R433 3.3V_TUNER 3.3V_RFB 3.3V_AMP 12V_AMP L409...
  • Page 41 X901 POWER SOURCE MENU VOL+ VOL- S907 S906 S905 S903 S904 S901 S902 R906 R905 R904 R903 R902 R901 1.5K 2.4K 4.3K Key board...
  • Page 42 LED1 GPR2503/P322 X911 R911 HRM538BB5117 R913 N911 Vout IR board...
  • Page 43 Power board...
  • Page 44 Backlight board...
  • Page 45 APPENDIX-A: Main assembly 9232ME8313 LCE-32R83DT NAME MAIN COMPONENT AND IT'S NO. N101 MST6E182VG_LF_Z1 (5270182005) N401 R620D (5270620002) Main processing XI6ME02501B0 N102 EN25Q32B-104HIP (5272532007) board N402 TAS5707 (5275707001) N201 IT6633E-P(5276633001) IR board XI635ME01701 Key board XI635ME01700 Power board XI6ME0252010 Remote control...

  • Page 46: Appendix-B: Exploded View

    APPENDIX-B: Exploded view (LCE-32R83DT)
  • Page 47 PART LIST OF EXPLODED VIEW REF.No. DESCRIPION Display panel assembly Main board assembly Power board assembly Back cover assembly Pedestal assembly Pedestal assembly Standing pole Speaker assembly Key board assembly Interface baffle (side) Interface baffle (down) IR assembly IR assembly Note: Design and specification are subject to change without notice.
  • Page 48 PART LIST LCE-32R83DT ver. REF.No. PARTS No. DESCRIPION Q'TY REMARK XI6377321010 Display panel assembly 1 XH32M22I XI6ME02501B0 Main board assembly Power board assembly XI6ME0252010 XI673283H040 Back cover assembly Pedestal assembly Pedestal assembly XI6150112000 XI6150112000 XI58D003031A Standing pole XI6170973000 Speaker assembly...
  • Page 49 Appendix: Installing the Stand If the stand is provided, please read these instructions thoroughly before attempting this installation. afety Precautions: 1.Please read these instructions thoroughly prior to attempting this installation. 2.Be sure to handle this product very carefully when attempting assembly. If you are unsure of your capability, or the use of tools necessary to complete this activity, refer to a professional installer or service personnel.
  • Page 51 Nov. 2012...

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