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LCD TV Service Manual

Hisense Confidential

2. Product Function Specifications

2.1 Product Function

Front Cabinet

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Содержание LCD-24V87P

Страница 1: ...LCDTelevision Service Manual Chassis MTK8222 Product Type LCD42P69P LCD47P69P Ver 1 0 Hisense Electric Co Ltd March 2009 ...

Страница 2: ...nu and Adjustment 17 5 1 To enter the Factory OSD Menu 17 5 2 Factory OSD Menu 17 6 Software Upgrading 21 6 1 Get ready for upgrading 21 6 2 Upgrading with the MtkTool 23 6 3 Update with USB directly 27 7 Troubleshooting 29 7 1 Troubleshooting for Remote Control 29 7 2 Troubleshooting for Function Key 30 7 3 TV won t Power On 31 7 4 Troubleshooting for Audio 32 7 5 Troubleshooting for TV VGA HDMI ...

Страница 3: ... of tools specially designed for the purpose The special tools should be used when and as recommended It is important to note that this manual contains various CAUTIONS and NOTICES which should be carefully read in order to minimize the risk of personal injury to service personnel The possibility exists that improper service methods may damage the equipment It is also important to understand that ...

Страница 4: ...pecified safety characteristics may create shock fire or other hazards Under no circumstances should the original design be modified or altered without written permission from Hisense Hisense assumes no liability express or implied arising out of any unauthorized modification of design Serviceman assumes all liability 1 1 2 All ICs and many other semiconductors are susceptible to electrostatic dis...

Страница 5: ...lly inserted to prevent blade exposure To prevent electrical shock match wide blade or plug to wide slot fully insert 1 1 4 When replacement parts are required be sure to use replacement parts specified by the manufacturer or have the same characteristics as the original part Unauthorized substitutions may result in fire electric shock or other hazards 1 1 5 Safety regulations require that after a...

Страница 6: ...diately turn off the power Continuing to use the product may cause fire or electric shock 5 If the product emits smoke and abnormal smell or makes an abnormal sound immediately turn off the power Continuing to use the product it may cause fire or electric shock 6 Do not disconnect or connect the connector while power to the product is on It takes some time for the voltage to drop to a sufficiently...

Страница 7: ...portant for ensuring the safety of the product and the servicing work Be sure to follow these instructions Before starting the work secure a sufficient working space At all times other than when adjusting and checking the product be sure to turn OFF the POWER Button and disconnect the power cable from the power source of the TV during servicing To prevent electric shock and breakage of PC board st...

Страница 8: ... When handling the circuit board be sure to remove static electricity from your body before handling the circuit board Be sure to handle the circuit board by holding the large parts as the heat sink or transformer Failure to observe this precaution may result in the occurrence of an abnormality in the soldered areas Do not stack the circuit boards Failure to observe this precaution may result in p...

Страница 9: ...y that the screws parts and cables removed for servicing purposes have all been returned to their proper locations in accordance with the original setup The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of elect...

Страница 10: ... 10 LCD TV Service Manual Hisense Confidential 2 Product Function Specifications 2 1 Product Function Front Cabinet ...

Страница 11: ... 11 LCD TV Service Manual Hisense Confidential Back Cabinet ...

Страница 12: ... 12 LCD TV Service Manual Hisense Confidential 2 2 Specifications NOTE Specifications and design are subject to possible modifications without notice Due to improvements ...

Страница 13: ... 13 LCD TV Service Manual Hisense Confidential 3 LCD Panel Spec LCD42P69P Panel LC420WUN SBD1 ROH SN 1056497 3 1General Description 3 2 General Features ...

Страница 14: ... 14 LCD TV Service Manual Hisense Confidential LCD47P69P Panel LC470WUN SBC1 ROH SN 1056802 3 1General Description ...

Страница 15: ... 15 LCD TV Service Manual Hisense Confidential 3 2 General Features ...

Страница 16: ...8 ROH RSAG7 820 1101 VER B ROH 4 IR board 113523 RSAG2 908 1029 2 ROH 40RSAG7 820 996 VER C ROH 5 Led board 117467 RSAG2 908 1279 1 ROH RSAG7 820 1343 VER D ROH LCD47P69P No Description Part No Type Model PCB Model 1 Main board 120028 RSAG2 908 1497 1 ROH RSAG7 820 1637 VER D ROH 2 Power board 115259 RSAG2 908 1131 2 ROH RSAG7 820 977 VER F ROH 3 Keypad PCA 113354 RSAG2 908 1088 ROH RSAG7 820 1101...

Страница 17: ... appears 6 Press Menu again and leave factory OSD 5 2 Factory OSD Menu 5 2 1 White Balance Note Different source has different WB values Before adjusting please change to desired source 1 Auto Color For VGA and Component Video sources WB values must be adjusted And at others signal sources the auto colour does not work Before adjusting prepare the signal instruments such as DVD or K 8256 first and...

Страница 18: ...rial Park Hungary Hisense Hungary Australia Hisense Australia France Hisense France Auto Color For VGA and Component Video sources WB values must be adjusted And at others signal sources the auto colour does not work Color Temp Standard cool warm R Offset G Offset Color Temp B Offset Brightness Min Min Brightness Brightness Mid Mid Brightness Brightness Max Max Brightness Contrast Min Min Contrast...

Страница 19: ...the default value To clear the EEPROM a Select the item Clean All b Press VOL button to clear the EEPROM data c Close the OSD menu after 5 seconds d Restart the TV 5 3 Designer Menu Item 0 Item 1 Item 2 Note Picture Mode SOURCE The current program source VIVID Brightness Brightness of VIVID mode VIVID Contrast Contrast of VIVID mode VIVID Saturation Saturation of VIVID mode STD Brightness Brightne...

Страница 20: ...before adjusting Volume 75 When value is 75 Think about the Audio out power before adjusting Volume Max When value is 100 Think about the Audio out power before adjusting Audio Mode Audio Mode Standard user Music Speech Music 120HZ 500HZ 1 5kHZ 5kHZ 10kHZ Different frequencies for different Audio Mode The above Factory Service OSD Menu are reference only please refer to the actual units to determi...

Страница 21: ...unit 6 1 Get ready for upgrading 6 1 1 Install the driver Double click the icon MTKtools2 44 04 cp210xDriver rar install the driver Select the default value the driver will be installed step by step 6 1 2 Hardware connecting Connect the unit to your pc with a USB to serial port cable USB port connects to your pc and serial port to the TV s RS232 port USB connector to PC Serial connector to TV s RS...

Страница 22: ...TV Service Manual Hisense Confidential For the first connecting the pc will recognize and automatically install the USB device The process is just like the installation of a mini disk see the following picture ...

Страница 23: ...the running time and date whenever the tool is used The log will be a txt file named by the date and time After connecting the TV with your PC double click icon open the MtkTool If following error appears it means the related port is not be set properly Ignore these errors click Confirm and enter the MtkTool main interface see the following picture Flash chip model Please refer to follow steps to ...

Страница 24: ...een as the below picture 4 Set the flash baud rate to 115200 as the below picture 5 Click the browse button to select the bin file that will be updated 6 Click the start button to update software Select mode of Flash chip Communicate port Set Flash Baud Rate Select bin file Start upgrade Information of upgrade process Choose the current USB conversion Port Later choose com5 ...

Страница 25: ...the MtkTool main interface Select the right baud rate according to chip model For this unit chip model is MT8226 select 115200 So choose Auto Set Flash BaudRate Note Whether or not click the Auto Set Flash Baud Rate in the window menu depends on the chip type If the flash chip does not support high speed transport do not select this option otherwise reserve the selected mood ...

Страница 26: ...ce Manual Hisense Confidential Click Browse button find the upgrading program file and select it Press Upgrade button and start upgrading The following interface appears on the screen indicating upgrading successfully ...

Страница 27: ...can update with USB the software name should be HISENSE bin The Updating Steps is set the Source to DMP interface insert the USB the update file HISENSE bin which should be in root directory The TV automatic identify the upgrading software step by step according as the informations of the upgrading process USB to the Main board directly ...

Страница 28: ... 28 LCD TV Service Manual Hisense Confidential After upgrading you must confirm the software in the Factory Menu and you d better CLEAR UNPROTECTLY ...

Страница 29: ...roubleshooting for Remote Control Remote control does not work Try new batteries Replace RC Check IR receiver Change Led IR board Change Led IR cable Replace main board Replace battery Replace remote control Replace Led IR BD Replace Led IR cable YES YES NO YES NO YES NO ...

Страница 30: ...al Hisense Confidential 7 2 Troubleshooting for Function Key Buttons does not work Check switches Check key board Check Key BD cable Change Key BD Replace main board Replace tact switch Replace Key BD OK YES YES NO YES NO NO ...

Страница 31: ...k replace IR BD or Keypad PCA TV won t power on Is LED light NO YES Check Power Inlet YES NO Check Power Cord Only one works Replace Main BD Try Power on by RC and Button Neither works Both Work Power on OK YES NO Replace Power BD YES NO RED BLUE OSD NO Replace Main BD NO YES Check signal Source YES NO YES Replace Panel OK ...

Страница 32: ... Hisense Confidential 7 4 Troubleshooting for Audio No sound Check connecter Check speaker wire Replace main board Reconnect Replace speaker wire YES YES NO NO Check speaker set Replace speaker set YES NO OK YES NO Replace PSU ...

Страница 33: ...isense Confidential 7 5 Troubleshooting for TV VGA HDMI input No picture on the screen Check Signal Source Check connect Check cable Replace main board Make sure signal source is available Reconnect Replace cable NO YES YES NO NO ...

Страница 34: ...sense Confidential 7 6 Troubleshooting for YPbPr input No picture on the screen Check Source work or not Check connect Check Wires Green Blue Red Replace main board Check Source Device Reconnect Replace wires NO YES YES NO YES NO ...

Страница 35: ...nse Confidential 7 7 Troubleshooting for Video S Video input No picture on the screen Check Source work or not Check connect Check Cable Wires Replace main board Check Signal Source Reconnect Replace Cable Wires NO YES YES NO YES NO ...

Страница 36: ... 36 LCD TV Service Manual Hisense Confidential 8 Explode View 9 Schematic circuit diagram ...

Страница 37: ......

Страница 38: ... 16V C234 4 7uF 16V RA39 10K NC RA39 10K NC R679 4 7k R679 4 7k R683 47k R683 47k L66 FB L66 FB R244 100 R244 100 R674 10k R674 10k Q57 3904 Q57 3904 1 2 3 R239 4 7k R239 4 7k Q55 3904 Q55 3904 1 2 3 U7 CS4344 2CH AudioDac U7 CS4344 2CH AudioDac SDIN 1 DEM SCLK 2 LRCK 3 MCLK 4 VQ 5 FILT 6 AOUTL 7 GND 8 VA 9 AOUTR 10 R698 0 R698 0 R680 8 2k R680 8 2k RA31 10K RA31 10K R684 47 R684 47 R246 330 R246 ...

Страница 39: ...0 GPIO_11 INT Audio MUX select bit 0 DDR1 WITH TERMINATION Low Normal power on LVDS RESERVED LVDS RESERVED Hi LVDS power on BL ON OFF CONTROL MT8222 4052 SWITCH FCI FCI AMP_MUTE CONTROL LVDS POWER ON OFF DIMMING CONTROL GPIO Definition GPIO usage MT8222_P1V1 DDR1 NORMAL POWER ON OFF Audio MUX VERSION V1 0 AMP_SD FCI SCART1 VIDEO OUTPUT SW FCI SFlash RF Tuner HDMIx3 Power Distribution DDR1 VGA USBx...

Страница 40: ...B18 0603_Bead FB18 0603_Bead U9 LM7805 U9 LM7805 GND 3 VOUT 2 VIN 1 CB217 0 1uF CB217 0 1uF CB5 0 1uF CB5 0 1uF M2 MARK M2 MARK CB860 0 1uF CB860 0 1uF TP98 TP98 CB576 0 1uF CB576 0 1uF R258 1K R258 1K D188 B240A D188 B240A D62 SCHOTTKY DIODE B340A D62 SCHOTTKY DIODE B340A TP99 TP99 CE15 220uF 16v CE15 220uF 16v R1161 3K R1161 3K U3 AP1533 SOP 8 U3 AP1533 SOP 8 FB 1 EN 2 OCSET 3 Vcc 4 O P 5 O P 6 ...

Страница 41: ...PIO_10 6 VGASDA 8 VGASCL 8 GND 2 4 5 6 7 8 9 10 11 12 13 14 SPDIFOUT 12 OSCL0 6 8 11 14 OSDA0 6 8 11 14 SOY1 9 AV12_USB 4 GPIO_20 12 AV33_SIFDIG 4 12V_M 2 11 14 DDRV 2 4 5 E4N 14 E4P 14 DV10 2 4 DV33 4 AV12A_RGBB 4 Y0P 9 YPBPR0_GND 9 PB0P 9 PR0P 9 AOMCLK 12 13 ADIN1 6 CVBS6 10 GPIO_0 6 GPIO_1 6 CVBS5 10 GPIO_11 13 UP31 2 6 3V3 2 4 6 7 11 13 14 PWM1 11 SPDIFIN 12 SOY0 9 10 CVBS7 10 5V_M 2 6 8 12 13...

Страница 42: ...87 0 1uF C900 0 1uF C900 0 1uF C918 4 7uF 10V C918 4 7uF 10V FB66 0603_Bead FB66 0603_Bead C964 0 1uF C964 0 1uF C913 0 1uF C913 0 1uF C925 4 7uF 10V C925 4 7uF 10V FB44 0603_Bead FB44 0603_Bead C968 0 1uF C968 0 1uF C939 0 1uF C939 0 1uF FB41 0603_Bead FB41 0603_Bead FB20 0603_Bead FB20 0603_Bead C912 3300pF C912 3300pF FB56 0603_Bead FB56 0603_Bead C985 0 1uF C985 0 1uF C901 220uF 16v LowESR CAP...

Страница 43: ... 4 5 RD11 150 RD11 150 RD7 100 RD7 100 CD25 3300pF CD25 3300pF RND3 22x4 R RESCA2010 8N HX RND3 22x4 R RESCA2010 8N HX 1 8 2 7 3 6 4 5 C680 1uF C680 1uF RND11 150x4 R RESCA3216 8N HX RND11 150x4 R RESCA3216 8N HX 1 8 2 7 3 6 4 5 CD21 3300pF CD21 3300pF CD31 4 7uF 10v CD31 4 7uF 10v CD5 220uF 16v LowESR CAP CD5 220uF 16v LowESR CAP CD28 0 01uF CD28 0 01uF CD10 0 1uF CD10 0 1uF RD4 22 RD4 22 RND9 22...

Страница 44: ...4 CON3_2 0 M TJC10 3A HX CN4 CON3_2 0 M TJC10 3A HX 1 2 3 R159 NS 0 R159 NS 0 R199 NS 10K R199 NS 10K R537 33 R537 33 R539 33 R539 33 R21 220 R21 220 Q46 3904 Q46 3904 1 3 2 J9 MCU_ISP J9 MCU_ISP 1 2 3 4 R248 4 7K R248 4 7K R40 10K R40 10K D4 EZJZ0V800AA D4 EZJZ0V800AA 1 2 R217 2 2K R217 2 2K R31 100 R31 100 R543 10K R543 10K R166 1K R166 1K U26 TPS2052B R SOIC08N 1 270 6 00 HX U26 TPS2052B R SOIC...

Страница 45: ...NGXIYU20081113 VER C删除 2008 06 10 2008 06 10 2008 06 10 WANGXIYU20081113 VER C删除 WANGXIYU20081113 VER C删除 CB142 0 1uF CB142 0 1uF D113 ESD D113 ESD 1 2 R90 100 R90 100 R108 1K R108 1K D129 ESD D129 ESD 1 2 D122 ESD D122 ESD 1 2 D89 ESD D89 ESD 1 2 D90 ESD D90 ESD 1 2 CB141 0 1uF CB141 0 1uF R112 100K R112 100K P13 R HDMI L HX HDMI TYPE A P13 R HDMI L HX HDMI TYPE A 1 2 3 4 5 6 7 8 9 10 11 12 13 14...

Страница 46: ...AA D98 EZJZ0V800AA 1 2 黄白红左中右下 P16B 黄白红左中右下 P16B SIGNAL 8 GND 9 GND 11 GND 13 SIGNAL 10 SIGNAL 12 SIGNAL 14 L6 FB L6 FB C9 47pF C9 47pF D97 EZJZ0V800AA D97 EZJZ0V800AA 1 2 R347 510 R347 510 D72 EZJZ0V800AA D72 EZJZ0V800AA 1 2 Q5 3904 Q5 3904 1 3 2 R138 100 R138 100 R116 10K R RESC1005L HX R116 10K R RESC1005L HX R206 NC 0 R206 NC 0 D99 BAV70 R SOT3N 0 95 2 75 HX D99 BAV70 R SOT3N 0 95 ...

Страница 47: ... Only for US EU not stuff R76 75 R76 75 C77 10nF C77 10nF R55 68 R55 68 R435 10K R435 10K FB29 80 100MHz FB29 80 100MHz R418 10K R418 10K FB21 80 100MHz FB21 80 100MHz C74 10nF C74 10nF R77 68 R77 68 绿蓝红左中右 P8 绿蓝红左中右 P8 1 1 3 3 2 2 4 4 6 6 5 5 7 7 9 9 8 8 R416 12K R416 12K C75 15pF C75 15pF R72 68 R72 68 C83 4 7nF C83 4 7nF D43 EZJZ0V800AA D43 EZJZ0V800AA 1 2 C56 10nF C56 10nF D37 EZJZ0V...

Страница 48: ...IC Only for EU US not stuff WANGXIYU20081113 VER C更改 WANGXIYU20081113 VER C更改 D47 EZJZ0V800AA D47 EZJZ0V800AA 1 2 D58 EZJZ0V800AA D58 EZJZ0V800AA 1 2 C93 47nF C93 47nF R209 100 R209 100 R39 100 R39 100 D147 EZJZ0V800AA D147 EZJZ0V800AA 1 2 R470 12K R470 12K FB13 0 FB13 0 R212 75 R212 75 C70 47pF C70 47pF D74 EZJZ0V800AA D74 EZJZ0V800AA 1 2 C55 47pF C55 47pF R213 0 R213 0 FB34 0 FB34 0 R210 100 R21...

Страница 49: ...10K R RESC1005L HX R152 10K R RESC1005L HX Q32 C1815TL1 Q32 C1815TL1 1 3 2 L79 10uH L79 10uH R196 NC R196 NC R44 75 R RESC1005L HX R44 75 R RESC1005L HX D6 IN4148 D6 IN4148 C617 22pF C617 22pF SAW U16 N9455 SAW U16 N9455 2 ING 4 OUT1 GND 3 5 OUT2 1 IN R201 1K R201 1K D132 NC IN4148 D132 NC IN4148 QF1 2N7002 R SOT3N 0 95 2 75 HX QF1 2N7002 R SOT3N 0 95 2 75 HX 1 2 3 D11 IN4148 D11 IN4148 CE6 100uF ...

Страница 50: ... 3904 1 3 2 R334 47K R334 47K CA69 4 7uF 16v CA69 4 7uF 16v R408 100 R408 100 C415 2 2uF C415 2 2uF R397 100 R397 100 R59 10K R59 10K R425 47K R425 47K R465 100 NC R465 100 NC RA10 10K RA10 10K C382 2 2uF C382 2 2uF R403 47K R403 47K R331 100 R331 100 C322 0 1uF C322 0 1uF C353 0 1uF C353 0 1uF C417 2 2uF C417 2 2uF R332 47K R332 47K C413 2 2uF C413 2 2uF C418 2 2uF C418 2 2uF C321 0 1uF C321 0 1u...

Страница 51: ...100K R439 100K R428 0R R428 0R D95 IN4148 D95 IN4148 R24 4 7K R24 4 7K C440 0 1uF NC C440 0 1uF NC C192 10uF C192 10uF D140 IN4148 D140 IN4148 C421 0 47uF C421 0 47uF R395 10K R395 10K C448 NC C448 NC R361 NS 0R R361 NS 0R C450 0 1uF C450 0 1uF R392 0 NC R392 0 NC C443 NC C443 NC CE85 47uF 16v CE85 47uF 16v R14 4 7K R14 4 7K C410 0 1uF C410 0 1uF C424 0 47uF C424 0 47uF D136 IN4148 D136 IN4148 Q41...

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