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Service Manual

Model No.:

9. Trouble shooting

9-1. Simple check

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Содержание LT32C360

Страница 1: ...not contain warnings or cautions to advise non 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 WARNING ...

Страница 2: ...k Cover 15 4 3 Remove the Adhesive Tape 15 4 4 Remove the Terminal Bracket 16 4 5 Remove the Power Module 16 4 6 Remove the Main Board 16 4 7 Remove the Speaker 17 4 8 Remove the Remote Control Board 17 5 Installation Instructions 18 5 1 External Equipment Connections 18 5 2 HDMI Connections 21 6 Operation Instructions 24 6 1 Front Panel Controls 6 2 Back Panel Controls 6 3 Universal Remote Contro...

Страница 3: ...Service Manual Model No 02 9 Trouble shooting 49 9 1 Simple Check 49 9 2 Main Board Failure Check 9 3 Panel Failure 50 57 ...

Страница 4: ...ngerous to make any king of contact with any inside part of this product This symbol indicates that there are important operating and maintenance instructions in the literture accompanying the appliance 1 3 2 Be careful to the electrical shock to rain or excessive moisture This TV must not be exposed to dripping or splashing water 1 3 3 Electro static discharge ESD Some semiconductor solid state d...

Страница 5: ... with which receivers covered by this service manual might be equipped CAUTION J eiver 3 Do not spray chemicals on or near this receiver or any of its assemblies 4 Unless specified otherwise in this service manual clean electrical contacts only by applying the following mixture to the contacts with a pipe cleaner cotton tipped stick or comparable non abrasive applicator 10 by volume Acetone and 90...

Страница 6: ... Some semiconductor solid state devices can be damaged easily by static electricity Such components commonly are called Electrostatically Sensitive ES Devices Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor chip components The following techniques should be used to help reduce the ncidence of component damage caused by static by static ele...

Страница 7: ...below Note A note provides information that is not indispensable but may nevertheless be valuable to the reader such as tips and tricks Caution A caution is used when there is danger that the reader through incorrect manipulation 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...

Страница 8: ...r Display 16777216 No of Preset Channels 99 OSD Language English Color System PAL SECAM Audio System DK BG I M L L Audio Output Power Built in W 8W 2 Audio Output Power outer W No Total Power Input W 135W Voltage Range V AC100V 240V Power Frequency Hz 50 60Hz Net Weight KG 10 3 Gross Weight KG 12 8 Net Dimension MM 790 215 576 Packaged Dimension MM 960 197 610 ...

Страница 9: ...08 Service Manual Model No 3 Location of Controls and Components 3 1 Board Location No Description A Board Main Board B Board Power Board 3 2 Main Board AV Board A Board B Board 514C3201M22 DC1JQ0M0100M ...

Страница 10: ...LJQDO QDPH 9 1 1 0 9 high voltage 9 1 32 5 21 2 967 9 9 1 1 1 9 9 Notes J25 Pin 2 Backlight on off The system can turn on or turn off the backlight of TFT LCD Panel through the power supply unit path J2 Pin 5 System power on standby System board will use this pin to control system power J25 T Pin 3 Control the luminance of backlight The system can generate the PWN signal to control the strength of...

Страница 11: ... 10 Service Manual Model No 3LQ QXPEHU 6LJQDO QDPH HVFULSWLRQ B5 03 5 B 03 5 1 5 5 027 21752 1 1 9 32 5 25 5 027 3LQ QXPEHU 6LJQDO QDPH HVFULSWLRQ 1 remote connector J21 Keypad and connector J22 ...

Страница 12: ...cription Supply power for Main board Panel Service Manual Model No 11 Speaker connectorJ26 Pin number Signal name Description 1 RSPK RSPK 2 RSPK RSPK 3 LSPK LSPK 4 LSPK LSPK 21 3LQ QXPEHU 6LJQDO QDPH 1 1 21 2 9 9 1 1 9 9 9 67 32 5 21 2 ...

Страница 13: ...3 4 LCD Panel 12 Service Manual Model No 07 ...

Страница 14: ...ound 7 GND Ground 8 GND Ground 9 SELLVDS Select LVDS data format 2 10 ODSEL Overdrive Lookup Table Selection 3 11 GND Ground 12 RX0 Negative transmission data of pixel 0 13 RX0 Positive transmission data of pixel 0 14 GND Ground 15 RX1 Negative transmission data of pixel 1 16 RX1 Positive transmission data of pixel 1 17 GND Ground 18 RX2 Negative transmission data of pixel 2 19 RX2 Positive transm...

Страница 15: ...1 RXCLK Negative of clock 22 RXCLK Positive of clock 23 GND Ground 24 RX3 Negative transmission data of pixel 3 25 RX3 Positive transmission data of pixel 3 26 GND Ground 27 TST_AGE Aging Mode 4 28 NC No connection 5 29 GND Ground 30 GND Ground ...

Страница 16: ... assemble 4 1 Remove the Pedestal 4 3 Remove the adhesive tape The location of the adhesive tape as follows Remove the adhesive tape indicated on the faces upward 4 2Remove the Back Cover unit Service Manual Model No 15 ...

Страница 17: ...4 4 Remove the Terminal Bracket 4 5 Remove the power module 4 6 Remove the Main board J Service Manual Model No 16 ...

Страница 18: ...4 7 Remove the speaker Take out the speaker 4 8 Remove the remote control Remove the screw take out the remote control board Service Manual Model No 17 ...

Страница 19: ...axial cable not included to the ANT IN jack on the back of your TV DVD combo then connect the other end of the cable into the antenna or cable TV wall outlet To improve picture quality from an antenna in a poor signal area install a signal If you need to split the antenna signal to connect two TVs install a two way splitter Service Manual Model No 18 ...

Страница 20: ...he following appliances VCR multi disc player DVD camcorder video game or stereo system etc YPbPr can support these video fomats 480i 576i 480p 576p 720p 1080i Note 1 When HDMI port get DVI signal the PC Audio channel is changed to receive the audio for HDMI port Service Manual Model No 19 HDMI Red audio R White audio L Red Pr R W R W R To audio outputs VIDEO EQUIPMENT TO VIDEO output W R W R G B ...

Страница 21: ...computer are set to Power off 1 Connect VGA and audio cable 2 Connect the power cord 3 Power on the TV switch to PC mode 4 Power on the PC This sequence is very important 8 SCART HDMI1 INPUT HDMI2 INPUT PC AUDIO INPUT L R AV1 Pr Y Pb RF INPUT COMMON INTERFACE CI ...

Страница 22: ... menu When the source devicesupports DVI How To Connect 1 Connect the source device to HDMI port of this TV with a HDMI to DVI cable not supplied with this product 2 A separated audio connection is necessary 3 If the source device has an analog audio output connector connect the source device audio output to DVI Audio In port located on the PC port How To Use If the source device supports Auto DVI...

Страница 23: ...Cable sample HDMI Cable not supplied with the product HDMI to DVI Cable not supplied with the product Analog Audio Cable Stereo to RCA type not supplied with the product Service Manual Model No 22 ...

Страница 24: ...tion on AC Insert the AC cord plug into a standard polarized AC outlet NOTES Use the attached power cord only _ _ electrician replace the obsolete outlet _ simply unplug the unit from the AC outlet and plug it back in The unit should return to normal operation Service Manual Model No 23 ...

Страница 25: ...NU mode press VOL or VOL to adjust the item that you selected 5 STANDBY Press this button to turn the unit ON from STANDBY mode Press it again to turn the set back to STANDBY Service Manual Model No 24 All the terminals are from left to right AC POWER SOCKET HDMI AV YPbPr AUDIO INPUT PC AUDIO SCART CI CARD VGA ANTENNA Note 1 AV and YPbPr share one audio channel 2 When HDMI port get DVI signal the ...

Страница 26: ... DTV mode To Play Pause in DVD mode 12 FAV To access your favourite channels list in TV or DTV mode To Stop in DVD mode 13 DVD USB Please refer DVD Operation 14 15 16 17 18 Please refer DVD Operation 19 TELETEXT KEYS Please refer to next page 20 MUTE To disable or enable the sound output 21 TV AUDIO To select the available audio language of TV programs 22 RECALL GOTO To access the previously viewe...

Страница 27: ...7 Electrical parts 7 1 Block diagram Service Manual Model No 26 06 ...

Страница 28: ...RX2BCLKP RX2BCLKN DDC2BSCL DDC2BSDA HDMI_E_CEC RX3B2P RX3B2N RX3B1P HOTPLUG2 RX3B1N RX3B0P HOTPLUG3 RX3B0N RX3BCLKP RX3BCLKN RX2B2P DDC3BSDA RX2B2N DDC3BSCL Page 7 07_PCMCIA OTG_DM OTG_DP OTG_DP1 OTG_DM1 USB_DETEC1 ON_USB1 TSSTART TSVALID TSCLK TS_MDI 7 0 TS_D 7 3 TS_CLK TS_MOSTART TS_MOVAL PCM_D 7 0 PCM_A 14 0 PCM_IRQA_N PCM_CE_N PCM_IOWR_N PCM_IORD_N PCM_WE_N PCM_OE_N PCM_REG_N PCM_WAIT_N PCM_RE...

Страница 29: ...16V C152 100uF 16V C134 NC 0 1u C134 NC 0 1u C159 1nF C159 1nF R274 1K R274 1K C131 220uF 16V C131 220uF 16V C143 0 1u C143 0 1u C121 0 1u C121 0 1u R282 4 7K R282 4 7K C138 0 1u C138 0 1u C151 0 1uF C151 0 1uF C150 100uF 16V C150 100uF 16V C148 0 1u C148 0 1u R278 100K R278 100K C126 100uF 16V C126 100uF 16V C124 0 1u C124 0 1u C133 0 1u C133 0 1u C144 0 1u C144 0 1u C136 100uF 16V C136 100uF 16V...

Страница 30: ...NC FB 1206 R415 NC 100K R415 NC 100K R386 NC 15K R386 NC 15K U19 TPA1517 U19 TPA1517 IN1 1 SGND 2 SVRR 3 OUT1 4 PGND 5 OUT2 6 VCC 7 M SB 8 IN2 9 GND HS 10 GND HS 11 GND HS 12 GND HS 13 GND HS 14 GND HS 15 GND HS 16 GND HS 17 GND HS 18 GND HS 19 GND HS 20 L81 NC FB 1206 L81 NC FB 1206 R355 NC 0R R355 NC 0R C217 NC 1000pF C217 NC 1000pF C242 NC 100n C242 NC 100n C197 NC 1uF C197 NC 1uF C225 NC 1000P...

Страница 31: ...uF C22 0 1uF R15 4 7K R15 4 7K R21 0R R21 0R R17 4 7K R17 4 7K C20 0 1uF C20 0 1uF L57 FB_56_OHM_4A L57 FB_56_OHM_4A C5 470uF 16V C5 470uF 16V R5 NC R5 NC C6 0 1uF C6 0 1uF C11 0 01uF C11 0 01uF R7 10K R7 10K R11 10K R11 10K R408 NC 0R R408 NC 0R C23 0 1uF C23 0 1uF R22 10k R22 10k C7 1nF C7 1nF J25 NC INVERTER J25 NC INVERTER 1 1 2 2 3 3 4 4 5 5 R10 10K R10 10K R14 4 7K R14 4 7K C14 0 1u C14 0 1u...

Страница 32: ...34 10K R34 10K J27 SCART_24 J27 SCART_24 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 23 23 22 22 24 24 25 25 26 26 R30 10K R30 10K C41 47n C41 47n J5 PC Audio Input J5 PC Audio Input 1 2 3 4 5 6 7 8 Q9 2N3904 Q9 2N3904 3 2 1 RX7 NC V800AA RX7 NC V800AA C50 100pF C50 100pF C51 1uF C51 1uF C57 100pF C57 100pF C37 100p C37 100p Q7 NC 390...

Страница 33: ... V800AA L66 FB_11_OHM_500MA L66 FB_11_OHM_500MA C80 10uF C80 10uF RX19 NC V800AARX19 NC V800AA L64 FB_11_OHM_500MA L64 FB_11_OHM_500MA R65 10K R65 10K R98 33R R98 33R R66 33R R66 33R J8 NC Audio J8 NC Audio 1 1 2 2 9 9 3 3 8 8 4 4 5 5 7 7 6 6 RX18 NC V800AARX18 NC V800AA R78 NC R78 NC C65 1nF C65 1nF R67 10K R67 10K C63 47nF C63 47nF C79 0 1uF C79 0 1uF R89 100K R89 100K R77 NC R77 NC R107 0R R107...

Страница 34: ...80010 RX46 NC V80010 RX22 NC V80010 RX22 NC V80010 D3 BAV70L D3 BAV70L 1 2 3 R120 NC 100R R120 NC 100R RX25 NC V80010 RX25 NC V80010 J15 DIP 20 2 10 J15 DIP 20 2 10 1 1 3 3 5 5 7 7 9 9 11 11 13 13 15 15 17 17 19 19 2 2 4 4 6 6 8 8 10 10 12 12 14 14 16 16 18 18 20 20 R115 1K R115 1K D4 BAV70L D4 BAV70L 1 2 3 R124 22K R124 22K R114 10K R114 10K R125 4 7K R125 4 7K R111 22K R111 22K RX47 NC V80010 RX...

Страница 35: ...0nF CS30 NC 10nF CS30 NC 10nF RS6 NC 1M RS6 NC 1M R138 NC 2 2K R138 NC 2 2K F1 U4 NC MXL301RF F1 U4 NC MXL301RF LNA_IN 2 AS 6 IDAC 3 VDD_DNX2 1 VBATT_A3 4 VAGC2 5 VBATT_A5 7 XTAL_N 8 XTAL_P 9 CLK_OUT 10 GND_XTAL 11 VREG_A_OUT1 12 VDD_DNX1 31 TF_2 30 TF_3 29 VREG_A_OUT2 28 VBATT_A2 27 VAGC1 26 NC 23 VBATT_A1 13 SCL 14 SDA 15 IF_OUTP 25 VDD_IO 16 GND_DIG 17 VREG_D_OUT 18 VREG_D_IN 19 VBATT_A4 20 VDD...

Страница 36: ...Power USB Interface PWR CTRL 5V card R411 10K R411 10K 1 2 F2 NC NSMD050 F2 NC NSMD050 J16 PCMCIA_CNT J16 PCMCIA_CNT GND 1 D3 2 D4 3 D5 4 D6 5 D7 6 CE1 7 A10 8 OE 9 A11 10 A9 11 A8 12 A13 13 A14 14 WE 15 READY 16 VCC 17 VPP1 18 MIVAL 19 MICLK 20 A12 21 A7 22 A6 23 A5 24 A4 25 A3 26 A2 27 A1 28 A0 29 D0 30 D1 31 D2 32 WP 33 GND 34 GND 35 CD1 36 MDO3 37 MDO4 38 MDO5 39 MDO6 40 MDO7 41 CE2 42 VS1 43 ...

Страница 37: ...S1_CLK Y20 PAD_TS1_SYNC R16 PAD_TS1_VLD W20 PAD_TS1_D 0 P18 PAD_TS1_D 1 R18 PAD_TS1_D 2 T18 PAD_TS1_D 3 W19 PAD_TS1_D 4 Y21 PAD_TS1_D 5 Y19 PAD_TS1_D 6 R21 PAD_TS1_D 7 T21 PAD_TS0_CLK U19 PAD_TS0_SYNC K19 PAD_TS0_VLD P20 PAD_TS0_D 0 K20 PAD_TS0_D 1 L20 PAD_TS0_D 2 M20 PAD_TS0_D 3 T14 PAD_TS0_D 4 U15 PAD_TS0_D 5 U13 PAD_TS0_D 6 T12 PAD_TS0_D 7 U18 PAD_IP W1 PAD_IM Y1 PAD_TGPIO0 RF_AGC_CTRL AA4 PAD_...

Страница 38: ...267 10k 7 5 3 1 8 6 4 2 RP20 75RX4 7 5 3 1 8 6 4 2 RP20 75RX4 7 5 3 1 8 6 4 2 RP22 22RX4 7 5 3 1 8 6 4 2 RP22 22RX4 R268 10k R268 10k 7 5 3 1 8 6 4 2 RP21 22RX4 7 5 3 1 8 6 4 2 RP21 22RX4 C119 1n C119 1n 7 5 3 1 8 6 4 2 RP25 75RX4 7 5 3 1 8 6 4 2 RP25 75RX4 7 5 3 1 8 6 4 2 RP27 75RX4 7 5 3 1 8 6 4 2 RP27 75RX4 7 5 3 1 8 6 4 2 RP24 22RX4 7 5 3 1 8 6 4 2 RP24 22RX4 7 5 3 1 8 6 4 2 RP17 22RX4 7 5 3 1...

Страница 39: ...8 NO N ame 1 Connection Wire Control for USB INPUT 2 3 4 5 6 7 Connection Wire For Keyboard Connection Wire For Speaker Connection Wire For SIDE AV INPUT Connection Wire For Remote 8 Connection Wire Control for Backlight on off LVDS Wire Connection Wire Power For Mainboard ...

Страница 40: ...o the first DTV channel 2 DTV Manual tuning You can select a DTV channel then find the program in this channel Pls press to select the channel then press OK to search the programs NOTE Bad Normal Good means signal intensity Switzerland NewZealand Norway Poland Portugal Slovenia Spain Sweden Country OK Rumania Russian Serbia Morocco Tunis Algeria UK Dansk Deutsch Hrvatski Italiano Please select an ...

Страница 41: ...Standard Contrast 82 Brightness 50 Color 50 Sharpness 50 Tint 50 Color Temperature Medium Red 40 Green 31 Blue 50 MENU Rename Only can rename ATV programs Move the cursor to the program press teletext green button to rename the program Press to choose the character Press to move the cursor Press MENU button to exit edit Press EXIT to exit the menu Note ATV programs name only can be 5 character DTV...

Страница 42: ...tem LOCK Block Program Parental Guidance Off 7 EPG Menu Electronic Program Guide The EPG menu is used to look at what is being broadcasted on DTV or Radio channel in the day To access the EPG menu press the EPG botton the following menu will be displayed 28 Apr 04 39 800 SZTVM01 No Information 801 SZTVM02 802 SZTVM03 803 SZTVM04 804 Date No Information No Information No Information No Information ...

Страница 43: ...lue of user s menu 3 adjust the color temperature and white balance of each signal source 4 SSC to adjust the spectrum for passing the EMC test 5 special set 1 2hour off for Aging test 2 WDT watch dog 3 white pattern set pure color output for the panel used at the checking and aging test for panel 4 reset 5 set the recorder 6 set power on screen display 6 QMAP adjust adjust color quality 7 PEQ set...

Страница 44: ...you should choose Yes TV begin to update You should reset TV after update Note When Upgrade on the process please don t Power Off Haier MSD306 F W upgrade with USB SOP Step 1 Ready for F W Upgrade 1 1 Prepare a USB memory it from computer s USB port Step 2 F W Upgrade 2 1 AC ON 8 2 How to update software 43 ...

Страница 45: ...Service Manual Model No 9 Trouble shooting 9 1 Simple check 44 ...

Страница 46: ... Manual Model No 9 2 Main board failure check 1 Black creen 2 White screen 6 J2 11 8 11 on VCC pins of CJ20 Check if Q1is working Check if CJ20 is Signal on CJ20 Check QS Q6 and the 5 Is power LCD normal J2 45 ...

Страница 47: ...Service Manual Model No 46 3 Panel display abnormally connector j20 is at normal level ...

Страница 48: ... Check the speakers Y N Check if there is output at CJ26 Check if there is 12V input at PIN7of U19 Check if the power supply system is damaged short circuit or mis connected N Y Check if MUTE PIN of U19 is low voltage Check the volume control circuit from R302 U19 Y N Check if there is signal input at PIN1 PIN9 of U19 Check the volume input circuit from U8 to U19 N Y Replace U19 ...

Страница 49: ... PIN6 of TUU2 N Y Y Y N Check the power supply circuit to this PIN Check if there is intermediate frequency signal output at PIN12 of TUU2 Check if there is I2C signal at PIN4 PIN5 of TUNER1 Check the I2C circuit between U8and TUU2 Check the tuner Check the signal circuit between U8 and TUU2 Fix the RF set N 48 ...

Страница 50: ...Service Manual Model No 6 HDMI no picture or picture abnormal If J3 is R111 R112 R113 R114 R116 R117 Q11 Q12 49 ...

Страница 51: ...Service Manual Model No 7 PC no picture or picture abnormal 50 ...

Страница 52: ...Service Manual Model No 8 YPBPR AV SCART no picture or picture abnormal Check Y 51 ...

Страница 53: ...cracking Dim or L D TCP Sunken TCP lead cracking ACF bonding short Awful environment and something electric enter into LCD Mis align between TCP and Panel Panel failure TCP failure V Dim Vertal gray line V L D Vertical color line light or dark forever H B D Horizontal bar H Dim Horizontal gary line H L D H o r i z o n t a l line light or dark forever 52 ...

Страница 54: ...er Bubble Bladder in Polarizer Bladder between Polarizer and top glass Polarizer Scratch Polarizer Scratch Tine or rigidity arose F M i n s i d e Polarizer Eyewinker inside Polarizer Eyewinker inside Polarizer Circuit Abnormal Display Abnormal Display 1 Chip lose action 2 IC ahort or jointiog bad 3 Pannel and vsc connect bad Flashing B r i g h t a n d d a r k display alternately 53 ...

Страница 55: ...ge current and EDS Black Screen B L normal only Black screen display FIIcker Crosstalk 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 I C s h o r t o r jointion bad 3 Pannel and vsc connect bad Service Manual Model No 54 ...

Страница 56: ...ss between wire and electrode B L dark B L brightness darker than normal Connect badnessShort between wire and electrode B L wire damaged B L wire damaged Operation abnormal or systemic noise B L wire open Without backlight Operation abnormal or systemic noise B L shut down B L shutdown in sometime Short bitween lamp housing and wire Because consume power too much F M F M inB L white balck Rotundi...

Страница 57: ...ause Mechanlcal or B L Light leakage Brightness at bottom of LCM brighter than normal B L unit badness Uniformity B L brightness asymmetric Sheet in B L unit is uneven Mount hole Lack screw or screw damage Lack screw Screw damage Service Manual Model No 56 ...

Страница 58: ...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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