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Service Manual

Model No.: 42D3500

9-3. Mainboard Failure Check

No picture but have sound

Check the power output

No

Change the Power Board

Yes

Check the CN2 (BLO)
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

QB3 output 5V

Yes

No

Verify if

QM1

output

Change

the QM1

Yes

Still having
problems

Change Panel

Change LVDS wire

39

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Summary of Contents for 42D3500

Page 1: ...technical individuals of potential dangers in attempting to service 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 Unaut...

Page 2: ...ed in this manual 6 1 4 How to Read this Service Manual 6 Using icons 6 Chapter 2 Speci cation 2 1 Speci cation list 8 2 2 External pictures four faces 9 Chapter 3 Disassemble and Assemble 3 1 42D3500 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 1...

Page 3: ... 7 Electrical 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 T VST59 software update 34 Chapter 9 Trouble shooting 9 ...

Page 4: ...ng is to list 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 in...

Page 5: ...t 2 After removing 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 ...

Page 6: ...l 90 99 strength CAUTION This is a ammable mixture Unless speci ed 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 al...

Page 7: ...17 Minimize 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 oor can generate static electricity suf cient 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 num...

Page 8: ...lation may 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 nd additional information on a speci c topic 7 ...

Page 9: ...tem NTSC Audio System MN 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 17 8lbs Gross Weight KG 20 9lbs Dimensions with Stand 38 23 x 24 94 x 8 66 Dimensions without Stand 38 23 x 22 68 x 3 60 Service Manual Model No 42D3500 Chapter 2 Speci cation 2 1 Spec...

Page 10: ...Service Manual Model No 42D3500 2 2 External pictures four faces Front Side Up Side 9 ...

Page 11: ...Service Manual Model No 42D3500 Right Side Back Side 10 ...

Page 12: ...from the stand which in the picture above 3 Remove the stand 3 1 4 Remove the Power Supply Module 3 1 2 Remove the Back Cabinet 1 Remove the five screws indicated with red circles in below picture 2 Remove the Power Supply Module 3 1 5 Remove the Speaker Remove the Speaker indicated by red circle in below picture 1 Remove the twenty five screws indicated with red circles 2 Flip machine panel side ...

Page 13: ...Service Manual Model No 42D3500 3 1 6 Remove the Remote Control Board And the Key Board Remove the Remote Control Board and the Key Board indicated by red circle in below picture 12 ...

Page 14: ...42D3500 Chapter 4 Location of Controls and Components 4 1 Board Location 13 C Panel B Board A Board B No Model Description A Board HKL 420406 Power Supply Module B Board T MS3393 72B Mainboard C Panel AUO T420HVN04 5 LCD Panel ...

Page 15: ...into signal that panel can display 4 2 2 Connector de nition 14 IR Key Interface CN6 Pin number Signal name 1 5V 2 RED 3 GRE 4 IR 5 GND 6 K0 7 K1 8 K2 9 K3 10 K4 11 K5 12 K6 13 K7 14 GND Inverter connector CN2 Pin number Signal name 1 12V 2 12V 3 BLO 4 ADJ 5 GND 6 GND Speaker connector CN18 Pin number Signal name 1 ROUT 2 ROUT 3 LOUT 4 LOUT ...

Page 16: ... GND 3 VCC 4 VCC Mainboard power supply connector CN5 Pin number Signal name 1 12V 2 12V 3 GND 4 GND 5 5V 6 5V 7 GND 8 GND 9 STB 10 5VSB Service Manual Model No 42D3500 4 3 Power Supply Module 4 3 1 Function Description To supply power for Mainboard Panel 4 3 2 Connector de nition CN6 CN5 CN4 CN1 CN9 CN10 CN1 is the Power cord connector 15 ...

Page 17: ...Service Manual Model No 42D3500 4 4 LCD Panel 42D3500 Backlight Unit LVDS CONNECTOR CN1 Connector De nition 16 ...

Page 18: ...Service Manual Model No 42D3500 17 ...

Page 19: ...Service Manual Model No 42D3500 Chapter 5 Installation Instructions 5 1 Accessories Remote Control 18 Batteries ...

Page 20: ...n to select 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 rstly ...

Page 21: ...TV channel up 4 VOL Press to decrease the volume 5 VOL Press to increase the volume 6 MENU Press to select the main menu 7 INPUT Toggles between all the vailable input sources Service Manual Model No 42D3500 Chapter 6 Operation Instructions 6 1 Front Panel Controls 20 ...

Page 22: ...al Model No 42D3500 6 2 Back Panel Controls 21 1 Earphone output 2 Coax output 3 Line output 4 USB input 5 HDMI1 input 6 HDMI2 MHL input 7 HDMI3 input 8 VGA input 9 PC Audio input 10 ANT input 11 YPbPr input 12 Video in input 13 Audio in input ...

Page 23: ... 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 POWER INPUT USB Shortcut button CC HOME Program Number Channel selection RECALL button VOL VOL Volume selection CH CH Channel selection Mute Menu button Back button Exit button DISPLAY button SAP button Sleep button Wide button Audio button Picture Mode OK button Channel List Favorite program Play Pause button only for USB EPG button Fast Reverse on...

Page 24: ...33 CL3 10uF VI 3 VO 2 ADJ 1 VO 4 UL2 LC1117CLTRAD 1V8_DDR RL1 330ohm RL2 150ohm CL6 0 1uF CL5 0 1uF 5V_M CL7 10uF RM2 NC 3K3ohm 5V_STB RB2 NC 0ohm LD1 MGSD54 6R8M LF CB1 1uF 0603 GND GND GND GND GND GND GND GND GND GND GND GND GND CM6 10uF RB11 NC 2K2ohm BL_ON GND QB3 MMBT3904 f 350MHz GND 5V_M RB4 1Kohm RB10 33ohm RB3 10Kohm RB12 NC 100ohm BL_EN BL_ON PW_ON RE2 4K7ohm RE3 10Kohm QE2 MMBT3904 f 35...

Page 25: ... 119 RX0P_D 120 RX1N_D 121 RX2N_D 123 RX2P_D 124 RX1P_D 122 RXCP_B 126 RX0N_B 127 RXCN_B 125 VRM 38 AUL4 39 SAR1 102 SAR0 101 SAR2 103 GPIO5 GPIO49 60 ARC 88 AVDD3P3_DADC 48 U1 MSD3393LU BL_EN PWM ADJ CVBS1_OUT MHL_CABLE DET HDMI3_DET AMP MUTE ARC_DET AU_VRM IF_AGC VIFP VIFM AU_VAG 3_3V_AU 1 15V_STB GIN1M HD1_SOG HD1_Pr HD1_Y HD1_Pb VGA_RIN VGA_GIN VGA_BIN GIN0M VGA_HS VGA_VS AV_LIN AV_RIN AV_IN V...

Page 26: ... CN6 14PIN 2 0 D H G RK4 4K7ohm 3V3_STB LED_R LED_G RK8 10Kohm KEY RK11 1Kohm RK2 1Kohm LED_RED RK1 22ohm CON2 RF5 NC 1Kohm GND VCC_Panel GND GND VCC_Panel VCC_Panel GND GND GND GND CON1 GND GND RXE3_P RXE2_N RXE1_P RXE1_N RXE0_N RXE0_P RXE2_P RXE3_N RXEC_N RXEC_P RXO2_N RXO3_P RXO3_N RXO2_P RXO0_N RXO1_P RXO1_N RXO0_P RF6 NC 1Kohm RF8 NC 2Kohm M_SCL M_SDA RF7 NC 2Kohm GND GND RXEC_N RXEC_P 5V_M 5...

Page 27: ...15 16 17 18 19 20 HPD HDMI 5V GND SDA SCL ARC CEC RXC GND RXC RX0 GND RX0 RX1 GND RX1 GND RX2 RX2 21 22 23 GND GND GND GND AV1 161031041 外壳SPCC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 HPD HDMI 5V GND SDA SCL ARC CEC RXC GND RXC RX0 GND RX0 RX1 GND RX1 GND RX2 RX2 21 22 23 GND GND GND GND AV2 161031041 外壳SPCC CH18 NC 0 1uF CH16 NC 0 1uF CH13 NC 0 1uF CH12 NC 0 1uF 1 2 3 4 5 6 7 8 9 10 11...

Page 28: ...325 GNDGND PC_LIN PC_RIN GND CV19 1uF CV20 1uF VCOM RI7 68ohm CI7 0 047uF IR Transmitter Nin 1 Vcc 2 GND 3 NC1 4 NC2 5 AV26 NC GQ 08 GND SPDIF_OUT COAX 5V_M RF2 NC 0ohm LINE_OUTR LINE_OUTL C9 1000pF C10 1000pF GND LINE_L_OUT LINE_R_OUT R9 200Kohm R10 200Kohm R7 100ohm R8 100ohm RI1 75ohm GND GND AV_R_OUT AV_L_OUT GND 5V_M F2 NC FSMD110 USB0_DP USB0_DM USB_5V GND GND 1 2 3 4 GND DM DP 5V 5 6 GND GN...

Page 29: ... 25 UT2 MxL601 3 3VRF 1 8VRF IFN IFP CT15 0 1uF 3 3VRF 1 8VRF CT12 0 1uF 3 3VRF CT6 0 1uF GND GND CT4 0 01uF GND 1 8VRF GND CT8 1000pF LT3 33nH LT6 33nH CT9 1000pF LT2 HQ1005C8N2JT RT3 100ohm CT14 NC 0 1uF GND CT11 0 1uF GND 3 3VRF RT1 750Kohm GND GND CT2 1800pF CT1 1uF 0603 C78 1uF 0603 YT1 16MHz 20PPM RF_INPUT CT10 5 6pF CT16 1 8pF GND GND LT1 MGHB1005S102T LF CT17 1000pF IFP IFN CT23 0 1uF 5V_M...

Page 30: ...GND GND RA21 100ohm RA10 100ohm 5V_M 1 2 3 4 CN17 4PIN 2 54 D H 红色 G AMP_VCC AMP_VCC GND GND DA1 NC SK34A SMA AMPVCC EA2 470uF EA1 NC 470uF RA22 0ohm GND AMP LO AMP RO CA9 1uF CA11 1uF CA14 1uF CA19 1uF RA1 10ohm CA28 0 1uF CA2 0 1uF LA1 SMD5845 220M 03 LA2 SMD5845 220M 03 LA3 SMD5845 220M 03 LA4 SMD5845 220M 03 1 2 3 4 CN18 4PIN 2 54 D H G LOUT ROUT 1 2 3 5 4 7 6 GND RIN RSPK ERO ELO LSPK LIN CNA...

Page 31: ...Model No 42D3500 Service Manual 7 2 Wiring Connection Diagram 30 ...

Page 32: ... At the end of the main factory menu you can see the edition of the software like this BUILD TIME 2013 02 28 16 35 37 VERSION v1 0 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 r...

Page 33: ...trast Choose on or off in Dynamic Contrast 6 Power On Mode Choose on or off in Power On Mode 7 Mirror Control Choose on or off in Mirror Control 8 Front End Status 9 Timer Test 10 SSC 11 Erase Flash 12 PQ Advance Debug Choose on or off in PQ Advance Debug 13 Factory remote Open or close the Factory remote 14 Factory CH Export 8 2 3 PICTURE Adjust the Picture Mode Picture Curve White Balance and Ov...

Page 34: ...5 Panel Setting 1 LVDS Bit Mode choose the Bit 2 LVDS MAP choose the MAP 3 LVDS ODD Even choose ODD or Even 4 Bcaklight Adiust the value of backlight 5 Reset Panel Setting Date 6 6MX0 LVDS Map choose the 6MX0 LVDS MAP 7 6MX0 Channel choose the 6MX0 Channel 8 6MX0 Mirror choose the 6MX0 Mirror 9 6MX0 Demo choose the 6MX0 Demo 10 6MX0 Update 33 ...

Page 35: ...ware les to a USB disk on the root directory 2 Insert the USB disk when the AC power is off 3 Turn on the AC power in turn to begin 4 Turn off the AC power until the indicator light fast twinkling 5 Pull out the USB disk and power on the television Note Do not turn off the TV while it is updating 34 ...

Page 36: ... by 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 ne adjustment of channel Televisi...

Page 37: ...Service Manual Model No 42D3500 9 2 Mainboard IC Introduction Top view 36 1 2 3 4 5 6 7 8 ...

Page 38: ...Service Manual Model No 42D3500 Bottom view 37 ...

Page 39: ...IG UF1 4 DC DC convertor 5V 1 8V for MSD3393LU U1 LC1117CLTRAD UL2 5 voltage convertor 5V to 3 3V_STB LC1117CLTR33 UL1 6 voltage convertor 5V to 1 15V_STB LC3406CB5TR UD1 7 voltage convertor 5V to 3V for tuner LC1117CLTR33 UT1 8 Tuner SDCL1005CR33JTDF RFT1 Please check the Schematic Diagram for the particular support 38 ...

Page 40: ...o Change the Power Board Yes Check the CN2 BLO 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 QB3 output 5V Yes No Verify if QM1 output Change the QM1 Yes Still having problems Change Panel Change LVDS wire 39 ...

Page 41: ...akers Verify 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 UA1 has the right power in No Change UA1 Still having problems Change Mainboard 40 ...

Page 42: ...Change the Power supply Verify if CN4 Pin3 4 has 5V input Yes Verify if CN2 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 ...

Page 43: ...ound 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 ...

Page 44: ...me problem 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 ...

Page 45: ... is broken 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 ...

Page 46: ...LCD 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 42D3500 9 4 Pannel Failure Failure Mode 45 ...

Page 47: ...tch 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 42D3500 46 ...

Page 48: ...EDS 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 42D3500 47 ...

Page 49: ...wire 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 wirel...

Page 50: ...leakage 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 42D3500 49 ...

Page 51: ...Sincere Forever Haier Group Haier Industrial Park No 1 Haier Road 266101 Qingdao China http www haier com Printed in China ...

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