Hisense MT5303C Service Manual Download Page 22 | Manualshive

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Hisense MT5303C Service Manual Download Page 22

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LCD TV Service Manual

Hisense Confidential

5. Troubleshooting

5.1 Troubleshooting 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

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Summary of Contents for MT5303C

Page 1: ...LCDTelevision Service Manual Chassis MT5303C Product Type LEDN24K15PUK LEDN32K15UK LEDN42K15PUK 9HU Hisense Electric Co Ltd September 2010...

Page 2: ...Menu 10 4 Software Upgrading 13 4 1 Get ready for upgrading 13 4 2 Upgrading with the MtkTool 15 4 3 Upgrading with the USB 20 5 Troubleshooting 22 5 1 Troubleshooting for Remote Control 22 5 2 Troub...

Page 3: ...his Service Guide are effective methods of performing service operations Some of these service operations require the use of tools specially designed for the purpose The special tools should be used w...

Page 4: ...or altered without written permission from Hisense Hisense assumes no liability express or implied arising out of any unauthorized modification of design Servicetech assumes all liability 1 1 2 All IC...

Page 5: ...horized substitutions may result in fire electric shock or other hazards and will void the manufacturer s warranty 1 1 5 Safety regulations require that after a repair the set must be returned in its...

Page 6: ...he product it may cause fire or electric shock 5 Do not pull out or insert the power cable from to an outlet with wet hands It may cause electric shock 6 Do not damage or modify the power cable It may...

Page 7: ...talling and removing the power board start servicing at least 2 minutes after the main power has been turned off While the main power is on do not touch any parts or circuits other than the ones speci...

Page 8: ...at the peripherals of the serviced points have not undergone any deterioration during servicing Also verify that the screws parts and cables removed for servicing purposes have all been returned to th...

Page 9: ...9 LCD TV Service Manual Hisense Confidential 2 Product Function Specifications Product Function Specifications...

Page 10: ...r factory OSD menu with Factory Remote b With user s RC 1 Power TV On 2 Press Menu button and call up User OSD Menu 3 Select Sound Balance 4 When Balance value is 0 Enter 1 9 6 9 in sequence Note If n...

Page 11: ...ata Clean Protected Clean the user data keep the factory data Version Version Panel Type FLASH Pattern Test Test pattern NULL Set channel QingDao HuangDao Hungary France Australia Factory Option SOURC...

Page 12: ...enu are reference only please refer to the actual units to determine the appearances Picture Mode Brightness Standard Soft Sound Mode Speech User Music Standard Mode User 120Hz 10 500 Hz 10 1 5KHz 10...

Page 13: ...of the unit MTKTool2 48 01 PL 2303 Driver Installer rar 4 1 Get ready for upgrading 4 1 1 Install the driver Double click the icon install the driver Select the default value the driver will be insta...

Page 14: ...dential 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 USB connector to PC S...

Page 15: ...green program needing no installation It is saved in the folder There are five folders files in this folder altergether The MtkTool using log is restored in the MtkLog folder It records the running ti...

Page 16: ...e following picture Flash chip model Please refer to follow steps to update the software 1 Select mode of Flash chip to MT536X as the below picture 2 Refer to the next page instruction to select the c...

Page 17: ...he TV In above picture COM4 is connected to the TV so select COM4 in the MtkTool main interface Select the right baud rate according to chip model For this unit chip model is MT536X select 115200 8 Au...

Page 18: ...nds on the chip type If the flash chip does not support high speed transport do not select this option otherwise reserve the selected mood Click Browse button find the upgrading program file and selec...

Page 19: ...19 LCD TV Service Manual Hisense Confidential MT536X...

Page 20: ...th the USB MT5303C Series can update with USB directly the Main software should named his_upgrade pkg Turn on the TV then Insert the USB The following appear Choose YES on the screen and press the OK...

Page 21: ...ll out the USB then restart the TV The new software start working If software upgrading defeated First turn off the TV insert the USB and restart the TV It can automatic upgrade nothing on the screen...

Page 22: ...oubleshooting 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 c...

Page 23: ...ial 5 2 Troubleshooting for Function Key Buttons does not work Check switches Check key board Check Key BD cable Change Key BD Replace main board Check solder connections and see if any switches are s...

Page 24: ...pad PCA TV won t power on Is LED light NO YES Check Power Output 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...

Page 25: ...ense Confidential 5 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...

Page 26: ...sense Confidential 5 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 Re...

Page 27: ...ense Confidential 5 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 Replac...

Page 28: ...se Confidential 5 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 C...

Page 29: ...29 LCD TV Service Manual Hisense Confidential 6 Explode View and Explode Bom List 7 Schematic circuit diagram...

Page 30: ...SC1608N HX 100K R488 R RESC1608N HX 100K 1 2 VD9 1N4148 VD9 1N4148 1 2 C168 0 1uF C168 0 1uF 1 2 VD7 1N4148 VD7 1N4148 1 2 C439 0 1uF NC C439 0 1uF NC 1 2 L24 FB L24 FB 1 2 R111 47K R111 47K 1 2 C709...

Page 31: ...2 R23 R RESC1005L HX 10K R23 R RESC1005L HX 10K 1 2 C202 10uF 10v R CAPC2012N HX C202 10uF 10v R CAPC2012N HX 1 2 R100 0R R100 0R 1 2 R99 R RESC1005L HX 10K NC R99 R RESC1005L HX 10K NC 1 2 C349 R CA...

Page 32: ...or 11 Digital Audio OUT monitor 10 HDMI Power monitor 24 CI_GPIO1 CI_GPIO2 CI_GPIO3 CI_GPIO6 CI_GPIO9 TRAP 5V CI_VCC Control CI_GPIO4 AnySource Bypass Sel NANDFlash CE Test in 3 SerialFlash RE NAND Fl...

Page 33: ...System MT8295 DVB T DEMO CI CONNECTOR 0 R Serial TS Parallel TS Parallel TS Parallel TS COMMON I F NAND Flash I F Serial TS IN Serial TS OUT TUNER TDA10023 DVB C DEMO IF CONN IF IF 0 R 0 R Serial TS T...

Page 34: ...101 R CAPC1005L HX 0 1uF 1 2 C45 0 1uF C45 0 1uF 1 2 C165 R CAPC1005L HX 0 1uF C165 R CAPC1005L HX 0 1uF 1 2 C175 R CAPC1005L HX NC C175 R CAPC1005L HX NC 1 2 R2 5K6 1 R2 5K6 1 1 2 CE55 220 0u 16V CE5...

Page 35: ...RDQ8 18 RDQ9 19 RDQ10 20 RDQ11 21 RDQ12 22 RDQ13 23 RDQ14 24 RDQ15 25 VCC2IO_24 26 RCLK0_ 27 RCLK0 28 VCC2IO_27 29 AVDD12_MEMPLL 30 RCKE 31 RA12 32 RA11 33 RA9 34 RA8 35 RA7 36 RA6 37 RA5 38 RA4 39 R...

Page 36: ...ST_ 64 GPIO3 66 GPIO2 67 OPWM2 68 OPWM1 70 OPWM0 71 VCXO 72 OSCL1 73 OSDA1 74 OSCL0 75 OSDA0 76 USB_DM0 78 USB_DP0 79 AVDD33_USB 80 USB_VRT 81 AVDD12_USB 82 U0TX 83 U0RX 84 OPCTRL5 85 OPCTRL4 86 OPCTR...

Page 37: ..._3 69 VCCK_4 77 VCCK_5 144 VCCK_6 182 VCCK_7 193 VCC3IO_8 198 POCE1_ 204 PDD0 205 PDD1 206 PDD2 207 PDD3 208 PDD4 209 VCCK_15 210 PDD5 211 PDD6 212 PDD7 213 PARB_ 214 POOE_ 215 PACLE 216 PAALE 217 POW...

Page 38: ...CAPC1005L HX 0 1uF 1 2 R109 R RESC1005L HX 47K R109 R RESC1005L HX 47K 1 2 R194 6K8 R194 6K8 1 2 VD87 VD87 1 2 R165 4 7K NS R165 4 7K NS 1 2 R492 0 NC R492 0 NC 1 2 VD37 R RESC1005L HX EZJZ0V800AA VD...

Page 39: ...HX 75 R64 R RESC1005L HX 75 1 2 R78 R RESC1005L HX 100 R78 R RESC1005L HX 100 1 2 XS13 HDTV1 XS13 HDTV1 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 R62 R RESC1005L HX 75 R62 R RESC1005L HX 75 1 2 XS5 VGA AUDI...

Page 40: ...N HX 18 1 2 VD52 EZJZ0V800AA VD52 EZJZ0V800AA 1 2 C153 NS 47pF C153 NS 47pF 1 2 C267 4 7nF C267 4 7nF 1 2 R347 R RESC1005L HX 68 R347 R RESC1005L HX 68 1 2 R154 47K R154 47K 1 2 C290 1uF C290 1uF 1 2...

Page 41: ...C1608N HX FB L76 R INDC1608N HX FB 1 2 R320 R RESC1005L HX 10K R320 R RESC1005L HX 10K 1 2 R339 R RESC1005L HX 100 R339 R RESC1005L HX 100 1 2 R333 R RESC1005L HX 100 R333 R RESC1005L HX 100 1 2 C10 R...

Page 42: ...TP142 TP142 1 R434 4 7K NC R434 4 7K NC 1 2 L15 FB L15 FB 1 2 C176 0 1uF C176 0 1uF 1 2 C154 0 1uF C154 0 1uF 1 2 CE48 100uF 16V CE48 100uF 16V 1 2 V26 R SOT3N 095 280 HX 2N3904 NC V26 R SOT3N 095 28...

Page 43: ...R202 4 7K 1 2 C490 22uF C490 22uF CE13 100uF 6 3v CE13 100uF 6 3v 1 2 R768 10k R768 10k R37 4 7K R37 4 7K 1 2 R764 10K R764 10K Q1 TJC3 4A Q1 TJC3 4A 1 1 2 2 3 3 4 4 R42 22K R42 22K 1 2 R213 R RESC100...

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