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- Page 1 FILE NO. LCD-32XR12F SERVICE MANUAL PRODUCT CODE No. PRODUCT CODE No. 1 682 351 88: PAL-B/G (Australia) NTSC(AV) LCD TV INPUT Q.TOOL RECALL LIST EXIT MENU MUTE INFO ZOO M STEREO FRZ/MIX FAV.LIST INDEX TV/RADIO SUBTITLE REFERENCE No.:SM0915234...
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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.
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Page 5: Alignment Instructions
Adjustment Instruction 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 3.2 Adjustment flow as Fig. 1: Check if EDID、 HDCP KEY、 FLASH has been written? General assembly and combined adjustment White balance adjustment Input central signal, check TV function (omitted channel, analog parameters control, etc. ), check earphone, speakers output. Check accessory and packing Check AV input, output and relevant functions.
- Page 7 4.1.2 Factory menu instruction Press key “INPUT”, then press digital keys “2、5、8、0” in turn to enter into primary factory menu; Press keys “▲” and “▼” to move cursor to each page of primary factory menu, then press key “OK” to enter into submenu page; Press keys “▲”...
- Page 8 4.1.4 ADC calibration for Component channel a) Switch to Component channel; b) Press key “INPUT”, then press digital keys “2、5、8、0” in turn to enter into primary factory menu; c) Move cursor to item “ADC ADJUST” and press key “OK” to enter into the inferior submenu; d) Input Component signal (VG-849 Timing:972(1080i), Pattern:918 100% color bar);...
- Page 9 Gain/Offset upward, coordinates of Y will increase, adjust G Gain/Offset downward, coordinates of Y will decrease; Note: Sanyo requires that default color temperature is Normal, adjust white balance of color temperature Normal and Cool in Dynamic picture mode; for other customers, please adjust white balance of color temperature Cool in Dynamic picture mode.
- Page 10 5.4 D-SUB port Input D-SUB signal from VG-849 with formats listed as Table 3 separately, check picture and sound; if H./V. of picture displays abnormally, enter into main menu Picture->Screen->Auto Adjust to perform auto calibration. Table 3 D-SUB signal formats H.- Freq.
- Page 11 Table 5 Video & audio signal formats of digital HDMI Item Unit Parameter Note Deep color：RGB 4:4:4（24 bit/pixel，30 bit/pixel，36 bit/pixel）、 YUV 4:4:4 （24 bit/pixel，30 bit/pixel，36 bit/pixel）、 Video For "1080p，deep color＂， only support "30 bit/pixel" YUV 4:2:2(16 bit)、YUV 4:2:2(20 bit)、YUV 4:2:2(24 bit) Audio sample 32、44.1、48 freqence...
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Page 12: Software Upgrade Instructions
Software Upgrading Instruction Software Upgrading Instruction as Table 6 Table 6 Software Upgrading Instruction Software SMT before Location Part No. Part model Upgrading method function upgrading Upgrade with ALL100, etc., N103 5272532007 EN25Q32B-104HIP FLASH need write protection, refer to Note1; N105 5272404005 CAT24C04WI-GT3... - Page 13 Fig. 3 Device MX25L64 successful connection If connection is failed, press the first menu “Device” and choose “MX25L64” manually, then press “Connect”; 4） Press “Read”, choose upgrading file, such as “MERGE.bin”; please refer to Fig. 4; Fig. 4 Choosing upgrading file 5）...
- Page 14 6） Press “Run” shown as Fig. 4 to perform upgrading in two steps, “Erase” and “Program”; Normal upgrading process: The first step “Erasing…， Flash Status: 03” will last for some time, or erasing is failed if the step passes over immediately; please confirm procedure 2) to perform upgrading again; The second step is “Programming…，Flash Status:00”;...
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Page 15: Working Principle Analysis
Working Principle of the Unit 1、 ATV PAL signal flow Receive RF PAL analog signal and sent it to XC5200C (D/A silicon Tuner controlled by main chip MSD309PX through I C bus) to be demodulated, then differential IF signal is send out to main chip MSD309PX analog demodulation to be demodulated to get analog CVBS video signal and SIF sound signal. - Page 16 sent to main chip MSD309PX to be processed by acoustic effect processor and volume controller to get two parts of signals: the analog part of signal is sent to earphone power amplifier MAX9820 to be amplified and then outputted to earphone jack; the digital part of signal I2S is sent to digital audio power amplifier APA3160 to be processed by D/A convertor and power amplifier, then outputted to drive speakers.
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Page 17: Block Diagram
Block Diagram XC5200C LVDS Silicon Tuner HDMI1 w/ARC ＡＰＡ３１６０ Audio HDMI2 Amplfier MSD309PX-LF YPbPr DDR2 Video In 512Mbit X 2PCS YPbPr Audio In Flash AV Audio In VGA Audio／Ｍｕｓｉｃ In SPDIF IN USB(Only for service) POWER SUPPLY... -
Page 18: Ic Block Diagram
IC Block Diagram 1、 TUNER IC XC5200C The Single-Chip Multi-Standard Tuner XC5200C supports all analog TV formats transmitted worldwide in the 42-1000 MHz band on either cable or terrestrial broadcast channels. It implements on-chip tuning, and channel filtering without external (SAW) filters and has no manually tunable parts. The broadband tuner converts the selected channel into an Intermediate Frequency (IF), which is then sampled by an internal high-resolution analog-to-digital converter (A/D) for further processing. - Page 19 2、 AMP IC APA3160 The APA3160 is a digital input, stereo, high efficiency, Class-D audio amplifier available in a TQFP7x7-48P package. The APA3160 accepts the digital serial audio data and using the digital audio processor to convert the audio data becomes the stereo Class-D output speaker amplifier.
- Page 20 3、 AUDIO IC MAX9820 The MAX9820 Windows Vista®-compliant stereo headphone amplifier is designed for portable Equipment where board space is at a premium. It features Maxim’s DirectDrive® architecture to produce a ground-referenced output from a single supply, eliminating the large output-coupling capacitors required by conventional single-supply headphone amplifiers.
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Page 21: Wiring Diagram
Wiring Diagram Panel TCON X504 Panel X503 X501 LVDS X308 X602(Pin4-13) Main Board X606 X605 X604 Board Debug X603 Board... -
Page 22: Troubleshooting Flow Chart
Troubleshooting Block Diagram 1．Panel doesn’t light up. Supply with power, check if red indicator lights up in STANDBY state? Press key POWER on remote control or unit, check indicator. Check if 5V is supplied Blue to X601-PIN11 ? Check if level of X601-PIN13 on main Check STANDBY... - Page 23 No picture, but backlight is normal: 2． Can control the TV set Press key MENU, by keys on remote can OSD display control or the unit? normally? Do no channel have picture at all? 有 Enter into factory menu to initialize EEPROM, then cut off main power and then turn on the TV set again, check if there is picture?
- Page 24 No sound, but picture is normal: 3． No sound Check if level of Check there Check N606-PIN19&25 signal inputted (signal input are all high? N606-PIN15&20&21 circuits) on main &22 ? board. Check +12V on Check if level of Check power voltage power board.
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Page 25: Schematic Diagram
N101 MSD309PX-LF-V1 N 1 0 7 N 1 0 4 N T 5 T U 3 2 M 1 6 D G - A C N T 5 T U 3 2 M 1 6 D G - A C MIUA MIUB Close to 309... - Page 26 +3.3V_TUNER N101 MSD309PX-LF-V1 +1.8V_TUNER +3.3V_TUNER R247 +3.3V_T PCMCIA +3.3V_T +1.8V_TUNER R238 JUMPER GND-D GND-D C215 100n +3.3V_TUNER PAD_PCM_D[0] PAD_TS1_D[0] C277 DIF_M IF_N AD14 R241 R243 L202 PAD_PCM_D[1] PAD_TS1_D[1] C219 R263 AD15 4.7K 4.7K C262 C265 C266 C271 R269 STLI1608_R12KT PAD_PCM_D[2] PAD_TS1_D[2] 150p 100n...
- Page 27 X304 RCA-386A-02 C318 R340 YPBPR-Y_IN 001:H5 C319 R341 C307 R312 YPBPR-Y YPBPR-SOG_IN V305 C314 X311 SPDIF R337 001:H5 UBA-100/W 001:F5 2SC4081 C330 R360 100p +3.3V C320 R342 GND-D YPBPR-PB YPBPR-PB_IN R393 USB-D+ 001:H5 R324 001:B5 C331 R361 X303 R394 V304 100p USB-D- SPDIF_CL...
- Page 28 +5V-S +3.3V-S +3.3V-S X603 TJC3S-13A X604 +5V-S R635 +3.3V-S X605 X602 R611 TJC10S-04A TJC10-04A TJC10S-03A R641 R618 R638 R615 +3.3V-S V606 BL_SW- 001:B4 C610 R606 2SC4081 2-3: Common Key,R639=4.7K 001:D6 100n 2.2K V602 R665 1-3: Touch Key,R639=5.6K 1% GND-D R644 R645 R642 2SC4081...
- Page 29 Power board...
- Page 30 APPENDIX-A: Main assembly 9232KI7013 LCD-32XR12F NAME MAIN COMPONENT AND IT'S NO. N101 MSD309PX-LF-SV (5270309003) N104, N107 NT5TU32M16DG_AC(5273216001) Main processing XI6KI00201D0 N106 APX810-29SAG-7 (5270810002) board N205 XC5200C (5275200002) N606 APA3160 (5273160001) IR board XI635KI00105 Key board XI635KI00104 Power board XI6KI00220D0 Remote control...
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Page 31: Appendix-B: Exploded View
APPENDIX-B: Exploded view (LCD-32XR12F) - Page 32 PART LIST OF EXPLODED VIEW REF.No. DESCRIPION Front cabinet assembly Display panel Main board assembly Power board assembly Power board connecter Key board assembly Back cover assembly Pedestal assembly Standing pole Pedestal connecter assembly Interface baffle (down) Interface baffle (right) Main board connecter assembly Speaker assembly IR assembly...
- Page 33 PART LIST LCD-32XR12F ver. REF.No. PARTS No. DESCRIPION Q'TY REMARK XI663270109A Front cabinet assembly XI5203328311 Display panel 1 T320HVN01.4 Main board assembly XI6KI00201D0 XI6KI00220D0 Power board assembly Power board connecter XI58A010060A XI635KI00104 Key board assembly XI673270012A Back cover assembly Pedestal assembly...
- Page 34 Appendix: Installing the Stand If the stand is provided, please read these instructions thoroughly before attempting this installation. You must install your TV into the stand in order for it to stand upright on a cabinet or other flat surface. If you intend to mount your TV on a wall or other vertical surface, you must remove the stand column.
- Page 36 May 2012...