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S/M NO. :

Service Manual

LED TV

CHASSIS :

SE-V26XB

Model :

EX236E2BCFA

Caution

: In this Manual, some parts can be changed for improving. their

performance without notice in the parts list. So, if you need the latest parts
information, please refer to PPL(Parts Price List)in Service Information Center.

Содержание EX236E2BCFA

Страница 1: ...B Model EX236E2BCFA Caution In this Manual some parts can be changed for improving their performance without notice in the parts list So if you need the latest parts information please refer to PPL Pa...

Страница 2: ...rica Specification 5 LT716B 1 South America Specification 12 Product Specification 19 Service Remote Controller 21 Block Diagram 22 LT908X Trouble shooting 23 LT716X Trouble shooting 31 Schematic 40 S...

Страница 3: ...s holding PCBs are working as electric circuit grounding make sure to check if any screw is missing when assembling reassembling Do not leave any screws inside the set A LCD Set contains different kin...

Страница 4: ...generated in HDMI mode Reconnect HDMI jack DVI signal has no sound Check the output signal of device to be connected to LCD TV If you want to use DVI HDMI cable you should also connect audio cable int...

Страница 5: ...on Up To 1920x1080 Video Input TV Tuner Receiving Range 55 25MHz 801 25MHz Input Impedance 75fi Video System PAL NTSC Sound System M N MTS Max storage Channels 181CH PC RGB Format Up to 1920x1080 60Hz...

Страница 6: ...standby 0 6W Come Filter 2D Deinterlace 2D Weak signal enhancement YES Noise reduction YES...

Страница 7: ...F Connector 75ft HDMI 1 HDMI terminal PC RGB 1 D SUB 15Pin terminal CVBS 1 RCA terminal Component 3 RCA terminals CVBS Audio 2 RCA terminals Component Audio PC RGB Audio 1 Earphone terminal Output Ear...

Страница 8: ...F T VST26 7X CN19 Key CN14 NC CN17 LVDS Interface CN15 NC CN24 NC CN3 Inverter CN2 NC CN26 NC CN20 Speaker Coaxial NC DC Power HDMI In PC RGB In PC Audio In CVBS Monitor Output R L Ear phone Coaxial N...

Страница 9: ...Supply for Panel 2 VSEL 3 VSEL 4 GND Ground 5 GND 6 GND 7 RXO0 LVDS ODD 0 Signal 8 RXO0 LVDS ODD 0 Signal 9 RXO1 LVDS ODD 1 Signal 10 RXO1 LVDS ODD 1 Signal 11 RXO2 LVDS ODD 2 Signal 12 RXO2 LVDS ODD...

Страница 10: ...IR BOARD CONNECTOR NO SYMBOL DESCRIPTION 1 5V 5V DC Power Supply 2 RED Red Indicator 3 GRN Green Indicator 4 IR IR Receiver 5 GND Ground 6 K0 K0 7 K1 K1 8 K2 K2 9 K3 K3 10 K4 K4 11 K5 K5 12 K6 Power O...

Страница 11: ...Product Specification Available Input Signal i TV Mode Color Standard NTCS PAL M N Reception Channel Ch 2 13 VHF Ch 14 69 UHF Ch 1 14 125 Cable Sound Transmission System FM Mono 2 Carrier IF Subcarrie...

Страница 12: ...24 60Hz O O X VESA Standard 1360 X 768 60Hz O O X 1440 X 900 60Hz O O X 1680X1050 60Hz O O X 720 X 480i 60Hz O X O 720 X 576i 50Hz O X O 720 X 480p 60Hz O X O 750 X 576p 50Hz O X O 1280 X 720p 50Hz O...

Страница 13: ...class circuit of L4 L11 is not ground short circuit Change the 5V 12V power boards U4 Dry joint or damage Find the ground short circuit point or change main chip U14 Change damaged circuit component...

Страница 14: ...ontact ok Is LCD OK Change the driever lcd wire Y N Change LCD N Y Check output network eg U14 driver lcd Y N Check the circuit of U14 Repair this circuit Display Trouble Display Trouble flower screen...

Страница 15: ...screen N Y Q8 AO3401 s G pole voltage 3 3V 0Vor5V 0 Whether U14 has signal output CN17 contact badly Or Q8 damage Check circuit of U14 pins Or U14 I O damage N Y LCD damage or driever lcd wire damage...

Страница 16: ...the BLON of CN3 has 5V Is inverter power is normal Check the circuit from BLON pin to U14 or U14 I O damage pin 67 N N Y Y Check and repair power supply Inverter power damage Display Trouble Display...

Страница 17: ...pair the U21 power supply Whether Volume MUTE setting is normal Reset the setting U1 s 11th and 6th pin Whether there is signal output Y N Check external speaker N Y Repair D47 or R257 And whether Q28...

Страница 18: ...RF equipment Y check the 7th pin of t1 whether it is 5V Repair this pin power net Y N whether the 4th 5th pin of T1 has data of I2C N Y whether the 8th pin of T1 has signal N check the network betwee...

Страница 19: ...r Process Whether the 1th 2th pins of SAW1 have signal 1 SAW1 damage 2 The circuit from SAW1 to U14 is not normal 3 U14 damage Check the network between the 2th pin of SAW1 and tuner Y N Function Trou...

Страница 20: ...R G B input signal of U14 is normal Reset the DDC settings Y N Check R G B circuit Whether VS HS signal are Ruled and stable Check the circuit of VS HS OSD settings do not match Reset the OSD or input...

Страница 21: ...m DDC settings is wrong and reset it 3 U14 damage check the circuit between U14 AV1 and AV2 whether R G B input signal of U14 is normal Y N Function Trouble Function Trouble Function Trouble Function...

Страница 22: ...6 Schematics...

Страница 23: ...3216D121T F C74 0 1uF 0402 Y5V 80 20 25V C75 0 1uF 0402 Y5V 80 20 25V C76 0 1uF 0402 Y5V 80 20 25V C77 0 1uF 0402 Y5V 80 20 25V C78 0 1uF 0402 Y5V 80 20 25V AVDDA VDDP 310mA YPbPr1080P AVDDA VDDP 310m...

Страница 24: ...6W 0Y 1 2Y 2 Y 3 3Y 4 1Y 5 SW 6 VEE 7 A 10 3X 11 0X 12 X 13 1X 14 2X 15 VDD 16 VSS 8 B 9 U8 74HC4052D C105 1uF 0603 Y5V 80 20 10V C106 1uF 0603 Y5V 80 20 10V R76 100Kohm 0402 5 1 16W R65 100Kohm 0402...

Страница 25: ...9 NC ULCE0505A015FR D40 NC ULCE0505A015FR D41 NC ULCE0505A015FR R178 33ohm 0402 5 1 16W R179 33ohm 0402 5 1 16W HDMI_SCL HDMI_SDA SDA_HDMI SCL_HDMI HDMI 5V 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18...

Страница 26: ...3V C250 0 1uF 0402 Y5V 80 20 25V C253 1uF 0603 Y5V 80 20 10V C252 4 7uF 0603 X5R 10 10V PC_ALI PC_ARI R184 68ohm 0402 5 1 16W C237 0 047uF 0402 X7R 10 16V R183 68ohm 0402 5 1 16W C236 0 047uF 0402 X7...

Страница 27: ...NC TDQ 6F6 T126CW H 33V R268 4K7ohm 0402 5 1 16W C24 0 1uF 0402 Y5V 80 20 25V C10 0 1uF 0402 Y5V 80 20 25V C9 NC 10uF 0805 Y5V 80 20 10V R166 NC 100Kohm 0402 5 1 16W 5V_IF R165 12Kohm 0402 5 1 16W AG...

Страница 28: ...402 5 1 16W R260 1K2ohm 0402 5 1 16W R263 1Kohm 0402 5 1 16W R265 1Kohm 0402 5 1 16W C270 NC 100pF 0402 NPO 5 50V C271 NC 100pF 0402 NPO 5 50V C286 1000pF 0402 X7R 10 50V R318 270Kohm 0402 5 1 16W INV...

Страница 29: ...e USB ISP tool to USB port of PC then install driver 1 2 For board upgrade Connect the USB ISP tool and blue CN18 of main board with 4pin cable as below picture 1 3 For CBU upgrade Connect the USB ISP...

Страница 30: ...pgrade method generally Please check carefully the connection of TXD and RXD between upgrade board and VGA board 2 Upgrade step 1 Run the ISP_Tool exe on your computer as below picture 2 1 Check the C...

Страница 31: ...2 2 Press Read to choose burning file as below picture 2 3 Open the burning file bin...

Страница 32: ...ill be as below Press OK continue 2 4 2 If connect fail picture will be as below Press OK check 2 4 2 1Check tool connect and driver install of USB ISP tool first 2 4 2 2Check the power connect and po...

Страница 33: ...2 4 3 1Burning Please wait 2 4 3 2Burn finished Pease power off then power on 2 If burn fail please retry again from 2 4 step...

Страница 34: ...004 40SA240036 FOAM 1 SE V26XB FOAM 1 M005 40SA240037 FOAM 2 SE V26XB FOAM 2 M006 40SA240038 FOAM 3 SE V26XB FOAM 3 ZZ140 PTCACAG716 CABINET AS EX236E2BCFA ADT1 40SA240007 ADAPTER AC SE V26XB 2PIN 12V...

Страница 35: ...LF TAPPING SE V26XB ST3X6F M003 40SA240010 SCREW SELF TAPPING SE V26XB ST3X6F M004 40SA240012 SCREW SELF TAPPING SE V26XB ST2 5X8 M005 40SA240010 SCREW SELF TAPPING SE V26XB ST3X6F M006 40SA240010 SCR...

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