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Related Manuals for XOCECO LC-32HU56S
Summary of Contents for XOCECO LC-32HU56S
- Page 1 LCD TELEVISION LC-32HU56S...
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Page 2: Table Of Contents
CONTENTS Safety precautions………………………………………………………………………..… Alignment instructions …………………………….…….………………………………… Working principle analysis of the unit……………………………….………….…………. Block diagram…………………………………..………………………………….………… IC block diagram………………………………………………………………………..…… Wiring diagram ……………………………………………………………………………. Troubleshooting guide ………………………………………………………………..…… Schematic diagram………………………………………………………………………… APPENDIX-A: Assembly list APPENDIX-B: Exploded View... -
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 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
Alignment instructions 1. Test equipment PM5518 (video signal generator) VG-848 (VGA, HDMI signal generator) VG-849 (digital video signal generator) CA210 (color analyzer) 2. Power test Connect main board, power board and IR board according the wiring diagram, connect the power and press “standby”... - Page 6 Performance check Preset ex-factory Fig-1 adjustment flow-chart 4. Adjustment instruction 4.1 Unit adjustments Connect all the boards according to wiring diagram, then power on and observe the display. Method for entering factory menu: press “INPUT”, “2”, “5”, ”8” and “0” in turn to enter factory menu;...
- Page 7 4.4 White balance adjustment 4.4.1 white balance adjustment of HDMI a. Input VG-849 signal from HDMI: TIMING854 (800* 600/60Hz) and eighth-level gray scale signal of PAT920. Use color analyzer CA210 to adjust white balance. b. Enter submenu of COLOR TEMP, Select 9300k of color temperature c.
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Page 8: Working Principle Analysis Of The Unit
6. Software instruction Table6 software instruction Code No. Type Function Flash written Method before paste NS14 5270008001 ATMEGA8L Power image Written with instrument like 5272540001 PM25VF040 Main CPU program ALL11 5272402002 24C02N-10SI27 HDMI EDID 5272402002 24C02N-10SI27 VGA EDID 5272404002 24C02N-10SI27 Store some important written information software... -
Page 9: Block Diagram
Block diagram POWER MEG. ATMEG8L EDID 24C02 FLASH YPbPr HDTV SW. EEPROM PI5V330 SCART1-RGB LCD TV CONTROLLER SCART1-V SCART1-L/R PANEL MST9E19B HDMI L/R-VGA L/R-YPbPr AUDIO AMP. TUNER PRE AMP R2S15102NP SPEAKER TV-SIF IF AMP TV-V TDA4470 2*AMP SCART1-V OUT PRE AMP TV-L/R SCART1-L/R OUT LM358D... -
Page 10: Ic Block Diagram
IC block diagram 1. MST9E19A The MST9E19A is a high performance and fully integrated IC for multi-function LDC monitor/TV with resolutions up to SXGA (1280X1024)/WXGA+(1440X900). It is configured with an integrated triple-ADC/PLL, an integrated DVI/HDCP/HDMI receiver, a multi-standard TV video and audio decoder, a video de-interlacer, a scaling engine, the MStarACE-3 color engine, an on-screen display controller, an 8-bit MCU, and a built-in output panel interface. - Page 11 2. R2S15102NP...
- Page 13 3. TDA4470 The TDA4470 is an integrated bipolar circuit for multi-standard video/sound IF(VIF/SIF) signal processing in TV/VCR and multimedia applications. The circuit processed all TV video IF signals with negative modulation (e.g., B/G standard), positive modulation (e.g., L standard) and the AM, FM/NICAM sound IF signals.
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Page 15: Wiring Diagram
Wiring diagram power board speaker key board IR board main board... - Page 16 Trouble shooting 1. Fault clearance Before servicing please check to find the possible causes of the troubles according to the table below. 1.1 Antenna (signal): Picture is out of focus or jumping Bad status in signal receiving Poor signal Check if there are failures with the electrical connector or the antenna.
- Page 17 signal types. Picture too bright and there is Check if the contrast setting is too high. distortion in the brightest area Possibly the output quality of DVD broadcaster is set too high. It maybe also due to improper terminal connection of the video frequency signal in a certain position of the system.
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Page 18: Troubleshooting Guide
2. Troubleshooting guide 2.1. No raster Turn-on power supply, check if the red indicator is light in the STANDBY? Check if PIN9(5V) of XS15 Press POWER button in the on main board is normal? unit or sensor control and check the indicator. blue Check if the PIN2,3 of XS14 Check STANDBY circuit of... - Page 19 2.2. Raster, but no picture Check if the unit button Does display remote control menu in screen when operation? press menu button? Check if all channels have no signal? VGA/SCART(CVBS)/HDMI Enter factory-menu, Which is no signal initialization EEPROM, of channels Replace then turn off the TV, Replace...
- Page 20 2.3.no sound Check if PIN2, 9,10 and Check the wave of 14 voltage of NV4 is PIN5,11 of NV4 Check NV4 and its normal? periphery Check power supply Check PIN24 wave of Check NS2 and its periphery Check N3 and its Check PIN11 wave of periphery TUNER101...
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Page 21: Schematic Diagram
main board sheet 1/5... - Page 22 main board sheet2/5...
- Page 23 main board sheet 3/5...
- Page 24 main board sheet 4/5...
- Page 25 main board main board sheet 5/5 sheet 5/5...
- Page 26 IR, key board...
- Page 27 power board...
- Page 28 APPENDIX-A: Main assembly 9232HU5610 MAIN COMPONENT AND IT'S NO. NAME TDA4470MFL (5274470001) Main board 6HU02101E0 R2S15102 （5271510201） MST9E19B （5270919002） Key board 6HU0860510 IR board 6HC0040910 Power board 6HU0212010 Remote control RC-Y35-0A 6010Y03502 Panel CLAA320WF01U 5203325207...
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Page 29: Appendix-B: Exploded View
APPENDIX-B: Exploded view (LC-32X56) - Page 30 PART LIST OF EXPLODED VIEW DESCRIPTION Front cabinet Panel push board Main board Power board Wall mounting bracket Interface baffle Back cabinet Stand column Stand Key board Power socket Speaker IR board LCD panel fixed bracket Panel Decorative bar Note: design and specifications are subject to change without notice.
- Page 31 9232HU5610 Ver.1.0...
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