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Hisense LHD24K26AMN, Service Manual

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Hisense LHD24K26AMN Service Manual Download Page 6

 

 

 

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touch EMI ground part and Heat Sink of Film Filter. 

(2) Do not supply a voltage higher than that specified to this product. This may damage 

the product and may cause a fire. 

(3) Do not use this product in locations where the humidity is extremely high, where it 

may be splashed with water, or where flammable materials surround it. Do not install 

or use the product in a location that does no satisfy the specified environmental 

conditions. This may damage the product and may cause a fire. 

(4) If a foreign substance (such as water, metal, or liquid) gets inside the panel module, 

immediately 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 low level after the power has 

been turned off. Confirm that the voltage has dropped to a safe level before 

disconnecting or connecting the connector. 

(7) Do not pull out or insert the power cable from/to an outlet with wet hands. It may 

cause electric shock. 

(8) Do not damage or modify the power cable. It may cause fire or electric shock. 

(9) If the power cable is damaged, or if the connector is loose, do not use the product: 

Summary of Contents for LHD24K26AMN

Page 1: ...LCDTelevision Service Manual Chassis MSD1309BT Product LHD24K26AMN LHD24K300AMN LHD24N10AMN Ver 1 0 Hisense Electric Co Ltd March 2013 ...

Page 2: ...2 2 2 Main Board 14 3 Factory Service OSD Menu and Adjustment 16 3 1 To enter the Factory OSD Menu 16 3 2 Factory OSD Menu 16 4 Software Upgrading 18 4 1 Upgrading with the ISP_TOOL 18 4 2 Upgrading with the USB 21 5 Circuit instruction 22 5 1 Main board block diagram 22 5 2 Troubleshooting 23 6 Schematic circuit diagram 30 7 Explode View 30 ...

Page 3: ...esigned 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 these CAUTIONS and NO...

Page 4: ...aracteristics 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 discharges ESD Carele...

Page 5: ...t 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 repair the set must b...

Page 6: ...ower 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 low level after the p...

Page 7: ...he 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 start the servicing work...

Page 8: ...rcuit 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 problems resulting fro...

Page 9: ...s 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 electric shock The exclamat...

Page 10: ... 10 2 Product Specifications LHD24K300AMN Front Cover Rear Terminal ...

Page 11: ... 11 LHD24N10AMN Front Cover Rear Terminal ...

Page 12: ... 12 2 1 Specification ...

Page 13: ... 13 ...

Page 14: ... 14 2 2 Main Board 5165 LHD24K26AMN LHD24K300AMN ...

Page 15: ...lia MSD1309BT Chassis Series includes model Model Panel Mode LVDS Main Panel Main board PCB LHD24K26AMN V236BJ1 LE1 JK ROH FFC 30 450 P ROH 2RSAG7 820 5165 VER C ROH LHD24K300AMN V236BJ1 LE1 C2 ROH FFC 30 450 P ROH 2RSAG7 820 5165 VER C ROH ...

Page 16: ...ction TOFAC you can select M or U default is U M Means you can enter factory mode with factory RC or user RC U Means you can enter factory mode only with user s RC 2 Mode M is only used for factory production b With user s RC Power on the TV 1 Press button Menu and call up User OSD Menu 2 Select Sound Menu Balance item 3 Press number key 1 9 6 9 in sequence when Balance item is focused Note If nec...

Page 17: ... Picture Mode Audio Mode Picture Curve Audio Curve SSC Adjust Saving Mode Overscan Not Stand Factory Menu White Balance Auto Calibrate Function Init Test Pattern Function TOFAC M or U Power Mode Save Software Update LOGO Hisense OSD language English PVR RECORD ALL OFF WDT ON UART Debug None White Balance RDRV GDRV BDRV RCUT GCUT BCUT TEMPERATURE Normal ...

Page 18: ...ard to the TV use VGA interface or the RS232 4 pin the other USB port to the compute 4 1 2 Install the ISP_TOOL4 5 0 4 only for the first time update 1 The software is upgraded by a burning tool ISP_TOOL exe 2 Find the folder where the ISP_TOOL4 5 0 4 lies in There are three folders files in this folder together DLPORTIO dll and FTD2XX DLL must be in the same folder ...

Page 19: ...a dialog window will show as below 4 Click the Config button And then a dialog window will show as below Draw on the front of Use USB Port Type setting is USB Base Addr setting is 0x38C ISP Slave Address choose 0x92 Serial Debug Slave Address choose 0xB2 ...

Page 20: ...Device Type maybe different If appear the following figure It indicates that the ISP_TOOL has not connected Please click the DisCon button and Connect button to connect 6 Click the Read button Choose the correct update file 7 After the update file has been chosen successfully Click the Auto button and choose parameters as following ...

Page 21: ...and call up User OSD Menu choose Channel Software Update USB item Note 1 4 Press OK it will show a confirm message box Press button to select yes in the confirm message box to start automatic update 5 Then it will update the software automatically Please don t power off during the updating process 6 After the software is successfully upgraded TV SET will restart automatically Note 1 In some TV SET...

Page 22: ... 22 5 Circuit instruction 5 1 Main board block diagram ...

Page 23: ...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 ...

Page 24: ...ing 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 stuck Replace Key BD OK YES YES NO YES NO NO ...

Page 25: ...wer 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 Power BD YES NO RED BLUE Panel Bright NO Replace Main BD NO YES Check signal Source YES NO YES Replace Panel to contact Hisense tech support OK ...

Page 26: ...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 Power Supply Board ...

Page 27: ... 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 ...

Page 28: ... 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 ...

Page 29: ...2 7 Troubleshooting for 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 ...

Page 30: ... 30 6 Schematic circuit diagram 7 Explode View ...

Page 31: ...8 4 7k R8 4 7k C448 10u 10V C448 10u 10V L80 BLM18PG121SN1 NC L80 BLM18PG121SN1 NC R31 0R NC R31 0R NC R3 4 7k R3 4 7k L20 4 7 uH L20 4 7 uH C35 100n 16V C35 100n 16V C416 100n 16V C416 100n 16V R10 10k NC R10 10k NC R45 100k R45 100k N35 LD1117A 3 3AZ1117H 3 3 N35 LD1117A 3 3AZ1117H 3 3 ADJ 1 VOUT 4 VIN 3 VOUT 2 R48 10k R48 10k C25 1u 25V C25 1u 25V V19 AO3401L V19 AO3401L 3 1 2 C56 100n 16V C56 ...

Page 32: ...6 W12 TS0_D7 AA12 TS0_CLK T12 TS0_VLD T13 TS0_SYNC T11 PCMIRQ CI_INT T16 PCMOEN Y17 PCMIOR CI_RD W16 PCMCEN CI_CS AA16 PCMWEN M14 CI_CD K15 CI_RST L15 PCMREG CI_CLK T14 PCMIOW CI_WR U16 PCMWAIT CIWACK L13 C95 10p 50V NC C95 10p 50V NC C116 2 2u 10V C116 2 2u 10V R178 4 7k R178 4 7k R221 4 7k R221 4 7k C112 2 2u 10V C112 2 2u 10V R100 33R R100 33R R576 0R R576 0R C119 47n 16V C119 47n 16V C199 100n...

Page 33: ...J K L M N P R 1 2 3 7 8 9 VDDQ DQU5 DQU7 VSSQ VDD VSS VDDQ DQU3 DQU1 VSSQ VDDQ DMU VSS VSSQ DQL0 VDDQ DQL2 DQSL VSSQ DQL6 DQSL VREFDQ VDDQ DQL4 NC VSS RAS VDD CAS NC CS WE BA0 BA2 VDD A3 A0 A5 A2 VDD A7 A9 DQU4 VDDQ VSS DQSU DQU6 VSSQ DQSU DQU2 VDDQ DQU0 VSSQ VDD DML VSSQ VDDQ DQL1 DQL3 VSSQ VDD VSS VSSQ DQL7 DQL5 VDDQ CK VSS NC CK VDD CKE A10 ZQ NC VREFCA VSS A12 BA1 A1 A4 A11 A6 VSS ODT NC VSS V...

Page 34: ...ate Sheet of Hisense Electric Co Ltd No 11 Jiangxi Road Qingdao China WWW HISENSE COM Doc 1 0 Hisense MSD30XBT Custom 4 11 Friday January 04 2013 Title Size Schematic Name Rev Date Sheet of Hisense Electric Co Ltd No 11 Jiangxi Road Qingdao China WWW HISENSE COM Doc 1 0 Hisense MSD30XBT Custom 4 11 Friday January 04 2013 Title Size Schematic Name Rev Date Sheet of Hisense Electric Co Ltd No 11 Jia...

Page 35: ...ense MSD30XBT Custom 5 11 Friday January 04 2013 Title Size Schematic Name Rev Date Sheet of Hisense Electric Co Ltd No 11 Jiangxi Road Qingdao China WWW HISENSE COM Doc 1 0 Hisense MSD30XBT Custom 5 11 Friday January 04 2013 R238 12k R238 12k R244 75R R244 75R C267 100n 16V C267 100n 16V RV36 RV36 R246 75R R246 75R RV37 RV37 RV65 AVLC18S02015 RV65 AVLC18S02015 V Y R PB L PR GND XS4 V Y R PB L PR ...

Page 36: ...China WWW HISENSE COM Doc 1 0 Hisense MSD30XBT A 6 11 Friday January 04 2013 R429 0R NC R429 0R NC R256 0R R256 0R R242 75R R242 75R N65 24LC02B I SN NC N65 24LC02B I SN NC A0 1 A1 2 A2 3 Vss 4 SDA 5 SCL 6 WP 7 VCC 8 R430 0R NC R430 0R NC R232 100R R232 100R XS8 XS8 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 17 16 V51 BAT54C NC V51 BAT54C NC 3 1 2 R251 75R R251 75R C289 100n 16V NC C289 100n 16V NC R115 ...

Page 37: ...MSD30XBT A 7 11 Friday January 04 2013 Title Size Schematic Name Rev Date Sheet of Hisense Electric Co Ltd No 11 Jiangxi Road Qingdao China WWW HISENSE COM Doc 1 0 Hisense MSD30XBT A 7 11 Friday January 04 2013 C130 10u 16V C130 10u 16V C82 100u 25V NC C82 100u 25V NC R125 5 1R R125 5 1R C77 100n 16V C77 100n 16V C131 100n 16V C131 100n 16V RV3 ULCE0505A015FR RV3 ULCE0505A015FR F1 1206SB2500V032T ...

Page 38: ...o China WWW HISENSE COM Doc 1 0 Hisense MSD30XBT D 8 11 Friday January 04 2013 V21 2SCR523EB V21 2SCR523EB 1 2 3 R268 10R R268 10R R260 100k R260 100k R271 10k R271 10k RV50 ASES12U020R2 RV50 ASES12U020R2 R266 10R R266 10R R276 100k R276 100k R290 10R R290 10R R262 10k R262 10k R274 10R R274 10R XS16 DC1R019JB1 XS16 DC1R019JB1 DATA2 1 DATA2S 2 DATA2 3 DATA1 4 DATA1S 5 DATA1 6 DATA0 7 DATA0S 8 DATA...

Page 39: ...20p 50V V11 AO3401L V11 AO3401L 3 1 2 R468 10k R468 10k R402 51R R402 51R V36 2SCR523EB V36 2SCR523EB 3 1 2 C751 10u 10V C751 10u 10V R111 68R R111 68R R804 4 7k R804 4 7k R254 10k R254 10k C338 100n 16V C338 100n 16V C335 56p 50V NC C335 56p 50V NC C749 22u 6 3V C749 22u 6 3V C333 56p 50V NC C333 56p 50V NC U6 CDT 9051324 10_ZLT U6 CDT 9051324 10_ZLT ANT 5V 1 RF_SW 2 B1 3 3V 3 Clock Out 7 GND 6 S...

Page 40: ... C407 33n 50V C407 33n 50V C1117 100n 25V C1117 100n 25V R400 4 7k R400 4 7k R529 0R R529 0R R447 1M NC R447 1M NC R356 33k R356 33k VZ2 LM3Z10VT1G NC VZ2 LM3Z10VT1G NC 1 2 V34 2SCR523EB V34 2SCR523EB 1 2 3 R331 4 7k R331 4 7k C392 100n 16V C392 100n 16V C295 1u 10V C295 1u 10V R391 100R R391 100R R440 5 1R R440 5 1R C397 1n 50V NC C397 1n 50V NC R1134 15k R1134 15k C356 10u 16V C356 10u 16V R403 ...

Page 41: ...0 100n 16V C220 100n 16V C237 100n 16V C237 100n 16V R24 10k R24 10k C342 22n 25V NC C342 22n 25V NC C209 22u 6 3V C209 22u 6 3V R56 47R R56 47R RP330 47R RP330 47R 1 8 2 3 4 5 7 6 C207 100n 16V C207 100n 16V C341 22n 25V C341 22n 25V C229 100n 16V C229 100n 16V R51 0R R51 0R RP331 47R RP331 47R 1 8 2 3 4 5 7 6 C239 22u 6 3V C239 22u 6 3V R344 0R NC R344 0R NC C221 100n 16V C221 100n 16V C340 2 2u...

Page 42: ... 50V C852 104 50V C843 102 50V C843 102 50V RK05 620R RK05 620R VD805 R208 VD805 R208 1 2 C803 474 AC250V C803 474 AC250V R813 10R R813 10R VD808 R208 VD808 R208 1 2 N807 TL431 N807 TL431 1 2 3 V932 2907 V932 2907 1 2 3 C848 1000P 2KV C848 1000P 2KV RK07 0R RK07 0R M815 RIVET HX M815 RIVET HX 1 C851 1000u 25V C851 1000u 25V RK03 1 5K RK03 1 5K SWK10 SW 1 HX SWK10 SW 1 HX 1 2 R990 2K7 R990 2K7 R812...

Page 43: ...XP904 1 2 C942 104 C942 104 R808 1K R808 1K V902 4N50C V902 4N50C 1 2 3 VD923 1N4148 VD923 1N4148 1 2 R937 12K R937 12K R934 17R R934 17R R942 100k R942 100k R809 2K7 R809 2K7 R874 100K R874 100K V935 2222 V935 2222 3 1 2 VD833 1N4148 VD833 1N4148 1 2 VD832 1N4148 VD832 1N4148 1 2 R943 5K1 R943 5K1 C945 104 C945 104 Q803 Q803 1 2 3 4 R870 680 R870 680 R979 47R R979 47R C946 102 C946 102 Q901 Q901 ...

Page 44: ... AOD444 R837 R837 C821 C821 R859 OR R859 OR R825 200r R825 200r R839 R839 R858 100K R858 100K C835 102 C835 102 N834 N834 ISEN5 15 LDR 16 VERF 17 GNDP 18 ISEN8 7 ISEN6 8 ISEN7 9 OVP 10 ISET 11 RT 12 ENA 13 ISW 14 GNDA 6 ISEN4 5 ISEN3 4 ISEN2 3 ISEN1 2 PWM 1 SEL 20 COMP 21 SSTCMP 22 VIN 19 NC 23 STATUS 24 R861 100K R861 100K R898 56R R898 56R C830 C830 C837 470N C837 470N R832 10K R832 10K R826 NC ...

Page 45: ...ate Sheet of Doc RevCode Title A 1 1 Tuesday November 27 2012 SWK10 SW 1 HX SWK10 SW 1 HX 1 2 RK9 0R RK9 0R SWK15 SW 1 HX SWK15 SW 1 HX 1 2 SWK13 SW 1 HX SWK13 SW 1 HX 1 2 SWK14 SW 1 HX SWK14 SW 1 HX 1 2 RK2 3 3K RK2 3 3K RK3 2 2K RK3 2 2K SWK12 SW 1 HX SWK12 SW 1 HX 1 2 RK4 1 5K RK4 1 5K RK5 1K RK5 1K Q801 Q801 1 2 3 4 RK6 620R RK6 620R SWK11 SW 1 HX SWK11 SW 1 HX 1 2 RK8 0R RK8 0R SWK9 SW 1 HX S...

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