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Service Manual

Model No.:

Poor sound

Poor sound

Verify if sound system is
correct .

No

Change sound
system

For ease of use, recommend that customer format the picture and
sound settings in the automatic option.

Still having
problems

Updata the software and
make the reboot; or
change the maiboard

42

LE40B7000TF

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Содержание LE40B7000TF

Страница 1: ... a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death 2013 Qingdao Haier Electronics Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law Ìi ÊÜ Ì ÊÌ i...

Страница 2: ...anual 6 1 4 How to Read this Service Manual 6 Using icons 6 Chapter 2 Speciﬁcation 2 1 Speciﬁcation list 8 2 2 External pictures four faces 9 Chapter 3 Disassemble and Assemble 3 1 11 3 1 1 Remove the Stand 11 3 1 2 Remove the Back Cabinet 11 3 1 3 Remove the Mainboard 11 3 1 4 Remove the Power Supply Module 11 3 1 5 Remove the Speaker 11 3 1 6 Remove the Remote Control Board 12 3 1 7 Remove the K...

Страница 3: ...l Parts 7 1 Block Diagram 23 7 2 Circuit Diagram 30 Chapter 8 Measurements and Adjustments 8 1 Service Mode 31 8 1 1 How to enter into Service Mode 31 8 1 2 How to exit 31 8 2 Measurements and Adjustments 31 8 2 1 The Main Menu 31 8 2 2 General Setting 32 8 2 3 Picture 32 8 2 4 Sound 33 8 2 5 Debug 33 8 3 Software Update 34 8 3 1 software update 34 Chapter 9 Trouble shooting 9 1 Simple check 35 9 ...

Страница 4: ...st up the potential hazard or risk for the service personnel to open the units and disassemble the units For example we need to describe properly how to avoid the possibility to get electrical shock from the live power supply or charged electrical parts even the power is off This symbol indicates that high voltage is present inside It is dangerous to make any king of contact with any inside part o...

Страница 5: ...emoving an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to prevent electrostatic charge buildup or exposure of the assembly 1 3 4 About lead free solder PbF This product is manufactured using lead free solder as a part of a movement within the consumer products industry at large to be environmentally responsible Lead free solder must...

Страница 6: ...ngth CAUTION This is a ﬂammable mixture Unless speciﬁed otherwise in this service manual lubrication of contacts is not required Capacitors may result in an explosion hazard 5 Do not defeat any plug socket B voltage interlocks with which receivers covered by this service manual might be equipped 6 Do not apply AC power to this instrument and or any of its electrical assemblies unless all solid sta...

Страница 7: ...e bodily motions when handling unpackaged replacement ES devices Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted ﬂoor can generate static electricity sufﬁcient to damage an ES device 1 3 7 Ordering Spare Parts Please include the following informations when you order parts Particularly the Version letter 1 Model number seria...

Страница 8: ...damage equipment loose data get an unexpected result or has to restart part of a procedure Warning A warning is used when there is danger of personal injury Reference A reference guides the reader to other places in this binder or in this manual where he she will ﬁnd additional information on a speciﬁc topic 7 LE40B7000TF ...

Страница 9: ...VB T C DVB C Audio System BG DK I L Audio Output Power Built in W 8W 2 Audio Output Power outer W No Total Power Input W 100W Voltage Range V AC100V 240V Power Frequency Hz 50 60Hz Time of Sleep Timer MINS 240Min Net Weight KG 6 85 Gross Weight KG 8 70 Net Dimension MM 883 86 548 05 248 5 Packaged Dimension MM 972 604 156 Service Manual Model No Chapter 2 Speciﬁcation 2 1 Speciﬁcation list 8 LE40B...

Страница 10: ...Service Manual Model No 2 2 External pictures four faces Front Side Up Side 9 LE40B7000TF ...

Страница 11: ...Service Manual Model No Right Side Back Side 10 LE40B7000TF ...

Страница 12: ...3 Remove the four screws indicated with red circles 4 Remove the power main board 1 Lay down the TV set 2 Remove the four screws from the stand which in the picture above 3 Remove the stand 3 1 2 Remove the Back Cabinet 3 1 4 Remove the Speaker Remove the speaker directly 1 Remove the fifteen screws indicated with red circles 2 Flip machine panel side up 3 Carefully raise the Front shell from bott...

Страница 13: ...Service Manual Model No 3 1 6 Remove the Remote Control Board And the Key Board Remove the Remote Control Board and the Key Board indicated byred circle in below picture 12 LE40B7000TF ...

Страница 14: ...anual Model No Chapter 4 Location of Controls and Components 4 1 Board Location 13 A Board B Panel B No Parts number Description A Board power main board B Panel LCD Panel LE40B7000TF DH1U71D0M04M 2002CM39500630 ...

Страница 15: ...gnal that panel can display 4 2 2 Connector deﬁnition 14 IR Key Interface CN7 Pin number Signal name 1 GND 2 K7 3 K6 4 K5 5 K4 6 K3 7 K2 8 K1 9 K0 10 GND 11 IR 12 GRE 13 RED 14 5V LED Backlight interface CN804 CN805 Pin number Signal name 1 LED 2 NC 3 LED Speaker connector CN18 Pin number Signal name 1 ROUT 2 ROUT 3 LOUT 4 LOUT LE40B7000TF ...

Страница 16: ...Service Manual Model No 15 LE40B7000TF ...

Страница 17: ...Service Manual Model No 4 3 LCD Panel Backlight Unit LVDS CONNECTOR CNF1 16 LE40B7000TF LE40B7000TF ...

Страница 18: ...Service Manual Model No 17 LE40B7000TF ...

Страница 19: ...Service Manual Model No Chapter 5 Installation Instructions 5 1 Accessories Remote Control 18 Batteries LE40B7000TF ...

Страница 20: ... HDMI mode Refer to the HDMI device user guide for how to operate C Connect a D type 15 pin VGA interface cable to the VGA video interface connector on the PC Connect the other end of the cable to the PC interface connector on the TV Tighten the screws on the D E VGA connectors and connect the audio cable not supplied to the audio input socket on the back of the TV Turn on the TV ﬁrstly and then t...

Страница 21: ...n CH TV channel up VOL Press to decrease the volume VOL Press to increase the volume MENU Press to select the main menu SOURCE Press to select the input source Service Manual Model No Chapter 6 Operation Instructions 6 1 Front Panel Controls 20 LE40B7000TF ...

Страница 22: ...al Model No 6 2 Back Panel Controls 21 1 Mini AV intput 2 Mini YPbPr Coax intput 3 Coaxial input 4 SCART input 5 PC Audio input 6 VGA input 7 RF input 8 Earphone output 9 HDMI1 input 10 HDMI2 ARC input 11 HDMI3 input 12 USB1 IN input 13 USB2 IN input LE40B7000TF ...

Страница 23: ...Service Manual Model No 6 3 Setting Up Your Remote Control When using the remote control aim it towards the remote sensor on the TV 22 LE40B7000TF ...

Страница 24: ...CODB808 PIEB101 PIEB102 COEB1 PIEB10101 PIEB10102 COEB101 PIEB10201 PIEB10202 COEB102 PIEB10301 PIEB10302 COEB103 PIEB10401 PIEB10402 COEB104 PIEB10501 PIEB10502 COEB105 PIEB10601 PIEB10602 COEB106 PIEB10701 PIEB10702 COEB107 PIEB80101 PIEB80102 COEB801 PIEB80201 PIEB80202 COEB802 PIEB80301 PIEB80302 COEB803 PIEB80401 PIEB80402 COEB804 PIFB101 PIFB102 COFB1 PIHS102 COHS1 PIHS202 PIHS203 COHS2 PIHS...

Страница 25: ... PVCC QM21000mA LDO UL11 3V3_M SIS23X DDR3 4 75V 500mA USB LDO UL61 1V5_DDR 500mA 230mA USBA_5V 50mA 460mA 5V Max 2380mA Power Tree UD1 DCDC 12V WPM2341 5V_STB QM32 DCDC 1200mA UD41 1V0_M AMP 3110 12V Max 1380mA Max 3600mA LDO UT5 3V3_Demo Demo 395mA AMP 174 1500mA 3V3_M LDO UA7 1 8V_AMP 60mA M_5V 20mA ...

Страница 26: ...5 5 1 8W R12V 0ohm 0805 5 1 8W ED3 NC 470uF 16V 20 8 12 105 XL VI 3 VO 2 ADJ 1 VO 4 UL1 LC1117CLTR33 ED30 470uF 16V 20 8 12 105 SZ LED_SHORT RM11 100ohm 0402 5 1 16W RG6 510ohm 0402 5 1 16W PWM REF PWM REF R3 4K7ohm 0402 5 1 16W R9 4K7ohm 0402 5 1 16W PWM REF PWM REF TEST PI1V00M01 CO1V00M PI1V50DDR01 CO1V50DDR PI3V30M01 CO3V30M PI3V30STB01 CO3V30STB PI5V01 CO5V PICD101 PICD102 COCD1 PICD201 PICD2...

Страница 27: ...1 NC 0ohm 0402 5 1 16W USBB_DP USBB_DM USBA_5V POWER 1 DM 2 DP 3 GND 4 GND 5 GND 6 AV4 USB 042M 002DP RF2 5R1ohm 0402 5 1 16W RF3 5R1ohm 0402 5 1 16W USBB_P USBB_M CF2 NC 10uF 0603 X5R 20 10V A K DF2 AIES12U020R2 A K DF3 AIES12U020R2 AV_IN AV_R AV_L L 4 5 SW 2 1 R 3 AV11 PJ 322A H 7 0mm IR Transmitter Vin 1 Vcc 2 GND 3 GND 4 GND 5 AV33 NC GQ 03 08 PIAV401 PIAV402 PIAV403 PIAV404 PIAV405 PIAV406 CO...

Страница 28: ...43 PIAV20044 PIAV20045 PIAV20046 PIAV20047 PIAV20048 PIAV20049 PIAV20050 PIAV20051 PIAV20052 PIAV20053 PIAV20054 PIAV20055 PIAV20056 PIAV20057 PIAV20058 PIAV20059 PIAV20060 PIAV20061 PIAV20062 PIAV20063 PIAV20064 PIAV20065 PIAV20066 PIAV20067 PIAV20068 PIAV20069 PIAV20070 PIAV20071 PIAV20072 COAV20 PICC101 PICC102 COCC1 PICC201 PICC202 COCC2 PICC401 PICC402 COCC4 PICC901 PICC902 COCC9 PICH6101 PIC...

Страница 29: ...2 5 1 16W 3V3_M M_SCL M_SDA RF65 NC 0ohm 0402 5 1 16W Display PWM DIM RF68 NC 100ohm 0402 5 1 16W 3V3_M R17 33ohm 0402 5 1 16W C2 33pF 0402 NPO 5 50V C3 33pF 0402 NPO 5 50V Y1 24 576MHz 30PPM 20PF HC 49S XTALI XTALO GPIO23 SPI_CLK R2 10Kohm 0402 5 1 16W R1 4K7ohm 0402 5 1 16W R7 10Kohm 0402 5 1 16W R8 1Kohm 0402 5 1 16W C13 1uF 0402 X5R 20 6 3V 3V3_STB S 1 Q 2 W VPP 3 VSS 4 D 5 C 6 HOLD 7 VCC 8 U5...

Страница 30: ... 3V AVDD3P3_HDMI AVDD3P3_HDMI R6 0ohm 0402 5 1 16W 3V3_M_DDR 3V3_M C64 1uF 0402 X5R 20 6 3V 3V3_M_DDR 3V3_M C5 1uF 0402 X5R 20 6 3V C11 1uF 0402 X5R 20 6 3V 1V5_DDR C10 1uF 0402 X5R 20 6 3V 1V0_M C15 1uF 0402 X5R 20 6 3V 3V3_STB C55 1000pF 0402 X7R 10 50V C18 10uF 0603 X5R 20 6 3V 1V0_M C59 1uF 0402 X5R 20 6 3V C60 10uF 0603 X5R 20 6 3V 1V5_DDR C70 1uF 0402 X5R 20 6 3V C73 0 1uF 0402 X7R 10 16V C6...

Страница 31: ...6 NC 0 22uF 0805 X7R 10 50V CA54 NC 0 22uF 0805 X7R 10 50V CA30 NC NC 1000pF 0402 X7R 10 50V CA48 NC NC 1000pF 0402 X7R 10 50V CA50 NC NC 1000pF 0402 X7R 10 50V CA58 NC NC 1000pF 0402 X7R 10 50V CA17 NC 0 1uF 0805 X7R 10 50V CA47 NC 0 1uF 0805 X7R 10 50V CA49 NC 0 1uF 0805 X7R 10 50V CA57 NC 0 1uF 0805 X7R 10 50V PIAV3001 PIAV3002 PIAV3003 PIAV3004 PIAV3005 PIAV3006 PIAV3007 COAV30 PICA101 PICA102...

Страница 32: ...5R 10 10V IF_AGC RT7 0ohm 0402 5 1 16W RT8 0ohm 0402 5 1 16W ATC_IF_N ATC_IF_P ATC_IF_P ATC_IF_N MXL_IF_AGC RL1 0ohm 0402 5 1 16W 3V3_STB CT34 0 1uF 0402 X7R 10 16V CT35 0 1uF 0402 X7R 10 16V T2_IF_N T2_IF_P T2_IF T2_IF RT67 0ohm 0402 5 1 16W RT68 0ohm 0402 5 1 16W T2_IF_N T2_IF_P T2_IF_N T2_IF_P VI 3 VO 2 ADJ 1 VO 4 UT1 NC LC1117CLTR33 1 2 3 4 5 RF GND GND GND GND 6 GND RFT2 NC T 25 14 5 9 IEC14 ...

Страница 33: ...TS_D2 TSI_D5 TSI_D6 TSI_D7 Demo_TS_D5 Demo_TS_D6 Demo_TS_D7 1 3 5 7 8 6 4 2 RP2 4 47ohm 0402 5 1 16W TSI_D3 Demo_TS_D4 TSI_D4 Demo_TS_D3 CT64 33pF 0402 NPO 5 50V CT65 33pF 0402 NPO 5 50V CT46 10uF 0805 X5R 10 10V CT66 10uF 0603 X5R 20 6 3V CT67 NC 10uF 0603 X5R 20 6 3V TSI_START TSI_VLD TSI_CLK Demo_TS_VAL Demo_TS_SYNC Demo_TS_CLK RDT22 47ohm 0402 5 1 16W RDT23 47ohm 0402 5 1 16W RDT24 47ohm 0402 ...

Страница 34: ...X7R 10 16V CA43 NC 0 1uF 0402 X7R 10 16V CA44 NC 0 1uF 0402 X7R 10 16V RA6 NC 4K7ohm 0402 5 1 16W RA15 NC 4K7ohm 0402 5 1 16W RA4 NC NC 10Kohm 0402 5 1 16W RA16 NC 10Kohm 0402 5 1 16W RA5 NC NC 10Kohm 0402 5 1 16W RA17 NC 10Kohm 0402 5 1 16W CA60 NC 33pF 0402 NPO 5 50V CA32 NC 33pF 0402 NPO 5 50V RA18 NC 1Mohm 0402 5 1 16W GND CA59 NC 1uF 0603 X5R 10 25V GND RA26 NC 100ohm 0402 1 1 16W LRCK I2S_OU...

Страница 35: ...Service Manual Model No 7 2 Wiring Connection Diagram 30 LE40B7000TF ...

Страница 36: ...of the main factory menu you can see the edition of the software like this BUILD TIME Kernel Version SVN1358 8 1 2 How to exit If you want to exit this factory menu please press the button Exit on the remote system will be out the factory mode menu 8 2 Measurements and Adjustments 8 2 1 The Main Menu In factory mode menu press up down button to choose the up down item press right or OK button to t...

Страница 37: ...ode Adjust the Picture Mode Picture Curve 1 Brightness 2 Contrast 3 Sharpness 4 Color 5 Tint 8 2 3 ColorTmp Mode Adjust the ColorTmp Mode White Balance 1 R Gain 2 G Gain 3 B Gain 4 R Offset 5 G Offset 6 B Offset 7 Gamma Table 32 LE40B7000TF ...

Страница 38: ...IF AGC_L 4 ATS 5 WSS 6 DTG Scan 7 ADC White Balance 8 Auto Power On 9 Back Light 10 LCN Switch 11 AGC Mode 8 2 5 Version Used to view detailed information of the software including 1 Build Time 2 Kernel Version 3 BootRom Version 4 8051Rom Version 5 AudioRom Version 6 Customer SW Version 7 HDCP Key 8 CI Key 33 LE40B7000TF ...

Страница 39: ...umber key 1001 to enter into Hotel Mode Hotel lock Set Hotel mode on off Lock channel Lock the channel which you want Set source Set to the default source Dtv Channel Number Set to the default channel of the DTV source Atv Channel Number Set to the default channel of the ATV source Picture Lock Lock the picture Key Lock Lock the keyboard Max Volume Set max volume limited this option allows you to ...

Страница 40: ...y Fine Tune and MANUAL Scan No color for some channel program black and white Verify that the same problem exists on other channels Check the picture and sound systems Refer to the relevant instructions in the manual to adjust the colour Spots with some or all pictures Verify if the antennal is correctly connected Verify if the antennal is in good condition Make ﬁne adjustment of channel Televisio...

Страница 41: ...Service Manual Model No 9 2 Mainboard IC Introduction Top view 36 7 1 8 5 2 3 6 4 9 LE40B7000TF ...

Страница 42: ...Service Manual Model No Bottom view 37 LE40B7000TF ...

Страница 43: ...nvertor 12V 1 0V for SIS231C1CI U1 RT7237CHGSP UD4 4 DDR NT5CB64M16FP DH U2 5 Mainchip SIS231C1CI U1 6 Main Flash Memory U5 7 voltage convertor 5V to 1 5V_DDR LC1117CLTRAD UL61 8 voltage convertor 5V to 3 3V for tuner LC1117CLTR33 UL11 Tuner BW21S7511A01TF RFT1 9 Audio Ampliﬁer TPA3110LD2PWPR UA11 Please check the Schematic Diagram for the particular support 38 LE40B7000TF ...

Страница 44: ...ge the Power Board Yes Check the CN6 INVERTER Backlight on off Yes No There s something wrong with FRC Verify if the DC DC convertor can output the right Voltage No Change the corresponding DC DC Yes No Verify if QM2 output Change the QM2 Yes Still having problems Change Panel Change LVDS wire 39 LE40B7000TF ...

Страница 45: ...fy if the main board has the right input according to the source TV COMPONENT AV VGA HDMI etc Yes Verify if UA1 has the right output Yes Check CN17 input is right No No Check the corresponding audio input circuit you connect Verify if U31 has the right power in No Change UA1 Still having problems Change Mainboard 40 LE40B7000TF ...

Страница 46: ... Power supply Verify if CN4 Pin3 4 has 5V input Yes Verify if CN4 Pin1 has 12V input Yes Verify if DC DC convertors have the right output Yes No No No Change Power board Change Power board Change corresponding DC DC convertor Still having Change Change the software 41 Problems Mainboard LE40B7000TF ...

Страница 47: ...y if sound system is correct No Change sound system For ease of use recommend that customer format the picture and sound settings in the automatic option Still having problems Updata the software and make the reboot or change the maiboard 42 LE40B7000TF ...

Страница 48: ... exists in other channels Yes check out of picture and sound system No No Check out of picture and sound system of this channel Change the channel to the right sound system PAL BG SECAM L Yes Refer to relative instructions in the Manual for color adjust Updata the software and Still having problems 43 make the reboot or change the maiboard LE40B7000TF ...

Страница 49: ... Check if the power cord co nnect well Yes Check if the Power board output 5V and 12V No No Reconnect the power cord with the outlet or Power board Replace the Power board pls Still having problems Check if Main board LVDS wire Panel are in good condition 44 LE40B7000TF ...

Страница 50: ...D Mis align between TCP and Panel Panel failure TCP failure Name Description Phenomena Failure cause V B D Vertical bar V Dim Vertal gray line V L D Vertical color line light or dark forever TCP H B D Horizontal bar H Dim Horizontal gary line H L D Horizontal line light or dark forever Service Manual Model No 9 4 Pannel Failure Failure Mode 45 LE40B7000TF ...

Страница 51: ...h Tine or rigidity arose Eyewinker inside Polarizer Eyewinker inside Polarizer Abnormal Display Bright and dark display alternately 1 Chip lose action 2 IC ahort or jointiog bad 3 Pannel and vsc connect bad Part Name Dot Defect Polarizer Bubble Panel or Polarlzer Polarizer Scratch F inside Polarizer Abnormal Display Circuit Flashing Service Manual Model No 46 LE40B7000TF ...

Страница 52: ...S Black Screen B L normal only Black screen display Circuit Crosstalk FIIcker LCD Vcom imbalance Abnormal Color Only color abormal Capacitance improper bring crosstalk inside LCD pannel Abnormal Color Only color abnormal 1 Chip lose action 2 IC short or jointion bad 3 Pannel and vsc connect bad Service Manual Model No 47 LE40B7000TF ...

Страница 53: ...re and electrode B L dark B L brightness darker than normal Connect badnessShort between wire and electrode B L wire damaged Without backlight B L wire damaged B L wire open Operation abnormal or systemic noise Operation abnormal or systemic noise Short bitween lamp housing and wire Because consume power too much B L shut down B L shutdown in sometime F M F M inB L white balck Rotundity or wirelik...

Страница 54: ...akage B L unit badness Brightness at bottom of LCM brighter than normal Mechanlcal or B L B L brightness asymmetric Uniformity Sheet in B L unit is uneven Mount hole Lack screw or screw damage Lack screw Screw damage Service Manual Model No 49 LE40B7000TF ...

Страница 55: ...Sincere Forever Haier Group Haier Industrial Park No 1 Haier Road 266101 Qingdao China http www haier com ted in China ...

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