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Haier 48LTV3002, Service Manual

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Haier 48LTV3002 Service Manual Download Page 23

 

23 

7. OSD is unstable or can’t work normally 

 

 

 

Key board connected properly?

Reconnect the key board 

Buttons are OK? 

Replace the button function 

Yes 

No

Key board is OK? 

Replace the key board 

Replace the main board 

No

Yes  

No

No 

OSD is unstable or can’t work normally

Enter factory mode to do “Reset” 

Yes 

Summary of Contents for 48LTV3002

Page 1: ... TRANSFOMER FOR THIS UNIT WHEN SERVICING 6 1 Main Board 24 6 2 Power Board 26 6 3 Key Board 32 6 4 IR Board 32 7 Adjustment FW Upgrade EDID 33 8 Block Diagram 46 9 Wiring Diagram 48 10 Schematic Diagram 49 10 1 Main Board 49 10 2 Power Board 59 10 3 Key Board 63 10 4 IR Board 64 Table of Contents 1 Important Safety Notice 2 Revision List 3 1 General Specification 4 2 Operating Instructions 5 2 1 T...

Page 2: ...cs might create shock fire or other hazards Under no circumstances should the original design be modified or altered without written permission from Haier Haier assumes no liability express or implied arising out of any unauthorized modification of design Servicer assumes all liability FOR PRODUCTS CONTAINING LASER DANGER Invisible laser radiations when open AVOID DIRECT EXPOSURE TO BEAM CAUTION U...

Page 3: ...3 Revision List Version Release Date Revision Instructions Customer Model Model A00 Sep 10 2010 Initial release 48LTV3002 E199AANRW4H16N 55LTV3002 E229GANRW4H16N ...

Page 4: ...4 1 General Specification ...

Page 5: ...5 2 Operating Instructions 2 1 The Use of Remote Control ...

Page 6: ...6 2 2 To Use the Menus ...

Page 7: ...7 ...

Page 8: ...8 ...

Page 9: ...9 ...

Page 10: ...10 2 3 Front Panel Control Knobs ...

Page 11: ...11 2 4 How to Connect ...

Page 12: ... 13 H Sync 6 Red Ground 14 V Sync 7 Green Ground 15 Serial Clock for DDC 8 Blue Ground HDMI Pin No Description Pin No Description 1 TMDS Data2 11 TMDS Clock Shield 2 TMDS Data2 shield 12 TMDS Clock 3 TDMS Data2 13 CEC 4 TMDS Data1 14 Reserved N C on device 5 TMDS Data1 shield 15 SCL 6 TMDS Data1 16 SDA 7 TMDS Data0 17 DDC CEC Ground 8 TMDS Data0 shield 18 5V Power 9 TMDS Data0 19 Hot Plug Detect 1...

Page 13: ...13 3 2 Input Signal Timing ...

Page 14: ...14 4 Mechanical Instructions Step1 Remove the STAND BASE Step2 Remove the REAR COVER ...

Page 15: ...15 Step3 Remove the POWER BOARD MAIN BOARD and separate the PANEL and BEZEL Step4 Separate the PANEL and MAIN FRAME ...

Page 16: ...16 Step5 Remove the KEY BOARD IR BOARD and SPEAKERS ...

Page 17: ...w Chart 1 No power No power LED Off Check the AC input and the power is ON Power On Check the IR board and LED Replace the IR board Replace the main board Power board output 5V Replace the power board No Yes No Yes No ...

Page 18: ...ed Replace the main board Replace the Power board No Yes No Yes No No Power board output 12 16V Check the power key is under control Check the IR receiver is normal Replace the power board Replace the key board Yes Replace the IR board ...

Page 19: ...splay Reset the source Check the source Check the panel Replace the main board Replace the LVDS cable Replace the panel No No No Yes Yes Yes No No Check the main board Enter factory mode to do EEPROM initial Reset Check the LVDS cable ...

Page 20: ...e Panel No display LED white Replace the main board Check the backlight is On Check the LVDS cable Reinsert or replace the LVDS cable Replace the main board Replace the Panel No Yes Yes No Yes No No Yes Yes No Yes No Power board output 12 16V Check TV is under control and power on off by remote control and power key ...

Page 21: ...me or enter the menu to reset Reinsert the audio cable or change the TV system Replace the cable Replace the speaker Replace the main board No Yes Check the speaker resistance value is in spec Remark The value is marked on the speaker Check the audio source connection and the TV system are correct Yes No Yes No Enter factory mode to do Reset No ...

Page 22: ...function Replace the battery Replace the remote control Whether the IR board is abnormal Yes No Replace the IR board Replace the main board No Yes No Yes Use the other remote controls Check the remote control battery is not properly placed or no power ...

Page 23: ...y board connected properly Reconnect the key board Buttons are OK Replace the button function Yes No Key board is OK Replace the key board Replace the main board No Yes No No OSD is unstable or can t work normally Enter factory mode to do Reset Yes ...

Page 24: ...24 6 PCB Layout 6 1 Main Board 715G3365M03000004K ...

Page 25: ...25 ...

Page 26: ...26 6 2 Power Board 48LTV3002 715G2783 3 7 ...

Page 27: ...27 ...

Page 28: ...28 ...

Page 29: ...29 55LTV3002 715G2783 2 7 ...

Page 30: ...30 ...

Page 31: ...31 ...

Page 32: ...32 6 3 Key Board 715G3303 1 6 4 IR Board 715G3540R1A000004M ...

Page 33: ...e balance for this model 1 Enter into the factory mode Turn on the TV press MENU key with remote control then press number key 1 Æ 9 Æ 9 Æ 9 It will achieve the factory mode 2 Click on Auto Color in the PC and Component modes PC mode TIM 107 PAT 42 Component mode TIM 311 PAT 185 ...

Page 34: ...34 7 2 FW Upgrade Step1 ISP instruction Himax tool number 715GT118 B Step2 Setup ISP tool ...

Page 35: ...35 Step3 The USB tool connect to computer computer will prompt you to install USB drivers Weltrend board select Drivers WelTrend Usb2IIC directory of drive the installation 3 1 ...

Page 36: ...36 3 2 3 3 ...

Page 37: ...37 3 4 Step4 ISP Tool Flash Update step ...

Page 38: ...38 4 1 4 2 ...

Page 39: ...39 4 3 4 4 ...

Page 40: ...40 Step5 Programming Step6 Verify FW version ...

Page 41: ...writing EDID Tool 715G2005 C2 Cable a LPT cable a VGA cable a DVI to HDMI cable and a 12V DC adapter 715G2005 C2 male to male LPT cable VGA cable DVI to HDMI cable Step2 Connection for writing VGA EDID Connect to PC LPT Connect to TV VGA 12v DC input ...

Page 42: ... this icon to install 2 Double click this icon to run 2 Choose the VGA EDID file 3 Click anyone file to add VGA EDID file 4 Click here to Read the file This red frame contents detail information in VGA EDID file 1 Click here to open this interface ...

Page 43: ...43 Step4 Click FPD to open the another interface as follows figure 4 2 1 Tick LPT1 2 Click here to read file as figure 4 2 2 Click open to read the dat file ...

Page 44: ...iting failly Please check the whether the connection of tool and cables is nomal and retry Another way is to change a new ISP board and retry 1 Click here to write EDID 2 OK represents writing successfully Write fail 3 Click Read EDID can read out the EDID info checked in Edid Conten interface ...

Page 45: ... for writing HDMI EDID Notice When writing HDMI EDID the TV must be AC on or the process can t continue and will prompt NG info The other steps refer to the writing VGA EDID sop Connect to PC LPT port Connect to TV HDMI port 12V DC input ...

Page 46: ... ADCINN ADCINP IF U201 SAWFILTER RF IF Tuner Option BACK BACK SIDE SCL SDA BACK BACK BACK U404 EEPROM 24C32 ADC KEY IR RS232 RS232 Hotel Pin P0 P1 IR_DAT PC Audio Himax M2D Audio RS232 RAIN0 LAIN0 AV S Video Audio CN107 CN103 AV1 SCART Option Audio CN104 CN105 BACK BACK RAIN1 LAIN1 RAIN2 LAIN2 SIDE SIF Tuner U603 AMP TDA7297 MUX_AUL R COM1_AUL R MONO_AUD U601 Switch 4052 YPbPr Audio CN603 Connecto...

Page 47: ...01 U405 V33AUD HX6201 U405 12V_SB V18AUD PVDD_LV V33AUD USB 2 0 HOST V33HDMI VCCADC VDDA33 AVDD18 VCCLV VCC3AD VCC3IO V33LV A1117D5 0 U202 VCC8 74HC4052 U601 AUDIO SWITCH VCC12 BA17808 U706 POWER_ON AO3407 Q701 V12_ADP M24C02 U301 5VSB 5VT TUNER TU100 AO4449 Q406 PANEL PANEL_VCC AO4449 Q406 M24C32 U404 M24C02 U101 VCC5 VCC5 AP2176 U604 EARPHONE AMP V12_ADP PANEL PANEL_VCC V12_ADP TDA7297 U603 VCC5...

Page 48: ...d CN01 4 Pin CN404 Panel 30 Pin HX6201 A06MLAG U405 Scaler IC LVDS Cable 12 Pin CN701 CN402 8 Pin 4 Pin CN603 IR Board 5 Pin CN01 To Panel Speaker R L Power Board 11 Pin CN902 CN901 2 Pin CN802 2 Pin CN801 2 Pin CN804 2 Pin CN803 ...

Page 49: ...726 0 1uF 50V R704 22K OHM 1 16W R710 10K OHM 1 16W 2008 9 23 C749 0 001uF C719 0 1uF 50V Q710 PMBS3904 R729 1K OHM 1 16W C723 NC R713 1K OHM 1 16W C718 220uF 16V R734 1K OHM 1 16W C720 0 1uF 50V C722 100uF 16V C740 220uF 16V C708 100uF 16V Q707 PMBS3904 R717 10K OHM 1 10W C728 0 1uF 50V Q704 PMBS3904 C730 0 1uF 50V Q705 PMBS3904 R709 10K OHM 1 10W 1 1 H1 NC R712 1K OHM 1 16W C713 4 7uF 16V 12V SW...

Page 50: ...7 GND 8 OUT2 9 OUT1 10 U302 NC DDCA_SCL DDCA_SDA IN1 1 IN2 2 GND 3 IN3 4 IN4 5 OUT4 6 OUT3 7 GND 8 OUT2 9 OUT1 10 U303 NC HDMIA_CEC HA5V_DET 1 2 D302 NC TMDSD0 7 TMDSD0 9 TMDSD1 4 TMDSD1 6 TMDSD2 1 TMDSD2 3 SCL 15 DSHLD1 5 VCC5 18 CSHLD0 11 HPD 19 NC 14 DSHLD0 2 CEC 13 SDA 16 DDC_GND 17 DSHLD2 8 TMDSC 10 TMDSC 12 SHLD_GND1 20 SHLD_GND2 21 SHLD1 22 SHLD2 23 SHLD3 24 SHLD4 25 SHLD5 26 CN301 HDMI 1 2...

Page 51: ... Q202 NC 1 R215 NC 5VT VCC3 R224 NC Put Near to IC C239 NC C227 NC TUN_AUD C213 NC R219 NC GND C229 NC C230 NC C234 NC 1 R217 NC IF_AGC IF OUT ADS 5V for Tuner 1 R214 NC IF OUT SDA_A_Tuner 12 TGND T_CVBS C206 0 1uF 50V L201 2 2uH R210 56 OHM 1 16W TV_CVBS R208 100 OHM 1 10W TSCL TSDA C204 100uF 16V SIF PHILIPS TUNER FQ 1236 NTSC FQ 1216 PAL C207 220PF50V C202 0 1uF 50V C208 220PF50V C220 NC 5VT Q2...

Page 52: ...133 NC RGB_R1 1 R_OUT 1 2 D112 NC 1 2 D111 NC R145 75R C116 10uF 16V C108 NC 1 2 SP113 A0 1 A1 2 A2 3 VSS 4 SDA 5 SCL 6 WP 7 VCC 8 U101 NC COM1_AUL_O C125 4 7uF 16V C117 0 22uF R117 27K OHM 1 16W C110 0 047uF 1 2 SP108 NC R112 2 2K OHM 1 10W R106 2 2K OHM 1 10W 1 2 3 CN103 PHONEJACK 1 2 D108 1 2 SP110 NC 1 2 SP102 NC FB605 100R 1 10W 5 R123 NC 1 2 SP111 NC R124 NC 1 2 SP103 NC C102 100pF 1 2 SP105...

Page 53: ...C 1 2 SP126 NC R142 56 OHM 1 16W Q104 NC R139 18R OHM 1 16W 5 R172 NC R162 27K 1 16W 5 1 2 SP130 R141 27K 1 16W 5 1 2 SP131 NC 1 2 SP128 NC 1 2 FB104 NC 1 2 SP118 NC C157 NC C145 NC C161 NC C158 0 1uF 50V Q108 NC SVAV_AUL CVBS_GND CVBS_IN SVAV_AUR 1 2 D118 NC 1 2 D132 NC R180 NC R176 100R 1 10W 5 R173 NC 7 8 9 10 11 12 13 G G C Y CN107A NC 1 2 SP115 NC C133 4 7uF 16V 1 2 D123 NC C151 4 7uF 16V C13...

Page 54: ...V_C 8 1 2 FB306 300 OHM GND VGA_DDCSCL VGA_DDCSDA C334 0 1UF16V V33ADC V33ADC ADC_VREF AVDD18 AINA1 23 SOG2 27 SOG3 31 AINA5 37 AINB1 24 AINB2 29 AINB3 33 AINB4 38 AINC1 26 AINC2 30 AINC3 34 AINC4 39 AIND1 35 AIND4 40 AOUT1 43 AOUT2 44 EXT_R 13 HDMI_RXA0N 6 HDMI_RXA0P 7 HDMI_RXA1N 8 HDMI_RXA1P 9 HDMI_RXA2N 10 HDMI_RXA2P 11 HDMI_RXACKN 3 HDMI_RXACKP 4 HSYNC 15 VSYNC 16 SOG1 25 AINA2 28 AINA3 32 AIN...

Page 55: ...645 1UF25V SW_AMP_LIN C666 NC R643 0R05 1 16W AU_S0 12 AU_S1 12 R616 100 OHM 1 10W R615 100 OHM 1 10W Tuner input R640 NC C647 1UF25V SIF_VREFN SIF_VREFP SIF_VCMG R641 NC VREFI_PIF HEADPHONE R L OUTPUT SIF_VREFP 1 2 FB602 300 OHM 1 2 3 Q413 PMBS3906 VCC3 COM1_AUR SW_AMP_RIN SW_AMP_RIN MONO_AUD R613 0R05 1 10W 5 USB_AUR USB_AUL R627 100K OHM 1 10W NC 13 PVDD 16 NC 4 CP 1 PGND 2 CP 3 CVSS 5 VSS 6 LO...

Page 56: ...3904 GND GND GND VCC3 VCC3 VCC3 VCC3 GND 5VSB 5VSB GND GND GND GND 5VSB GND GND SDA_A 6 BL_ADJ 4 SCL_A 6 LEDY 12 LEDG 12 MCU_WP 12 UART_TX UART_RX GND UART_RX 7 UART_TX 7 R430 0 OHM 1 16W ADC UART_TX UART_RX Check pin order 1 2 3 4 CN405 JST 4 2 54 CN25 4VS 5VSB R427 100 OHM 1 10W R428 100 OHM 1 10W C423 10uF 16V XTAL_O IRDAT GPIO39 MCU_WP C425 10uF 16V VCC3 RS 232 SCK 3 1 2 D403 BAV99 L_G 1 2 D40...

Page 57: ... BRSB2N GPO_46 149 BRSB2P GPO_45 148 BRSCLKN 136 BRSCLKP 135 BRSG0N GPO_13 138 BRSG0P GPO_12 137 BRSG1N GPO_15 140 BRSG1P GPO_14 139 BRSG2N GPO_17 142 BRSG2P GPO_16 141 BRSR0N GPO_07 129 BRSR0P GPO_06 128 BRSR1N GPO_09 131 BRSR1P GPO_08 130 BRSR2N GPO_11 134 BRSR2P GPO_10 133 TTL RSDS LVDS U405C HX6201 A 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 CN404 V33LV V...

Page 58: ...R264 NC Y_SCALER R265 NC R266 NC R267 NC C252 NC R268 NC Q212 NC C256 NC R269 NC VCC5 Q210 NC Q211 NC R270 NC R271 NC R272 NC C257 NC R273 0R05 1 10W 5 PR2_IN PB2_IN V_SEL Low Channel 2 YPbPr2 High Channel 1 USB R288 NC R289 NC USB_AUL USB_AUR 1 2 FB220 NC C250 NC C263 NC Video_SEL C258 NC C259 NC Y2_IN USB_GND PR_IN0 Y_IN0 Y_IN0 PR_IN0 Pb_SCALER Pr_SCALER PB_IN0 Y_SCALER R260 NC PB_IN0 VBUS USB_G...

Page 59: ...75A PS RT 1 COMP 2 CS 3 GND 4 OUT 5 VCC 6 NC 7 HV 8 C919 100N 50V R929 33K 1 8W D910 NC R930 2 43K OHM 1 1 8W C901 1000pF C925 NC C927 0 1uF C902 1000pF FG BD901 GBU408 2 1 3 4 R931 NC R904 8 2K OHM 1 4W R908 100KOHM 5 R905 8 2K OHM 1 4W NR901 NTCR C923 470pF 25V IC902 KIA431A AT P C916 0 1uF C920 0 1uF ZD920 RLZ13B C903 0 47uF 275V C924 220pF Q903 PMBS3904 L904 3 5uH D909 LL4148 IC903 PC123X2YFZO...

Page 60: ...616 S2 1 G2 2 S1 3 G1 4 D1 5 D1 6 D2 7 D2 8 R848 NC C823 NC R849 0R05 1 10W 5 R846 0R05 1 10W 5 D802 D803 D804 Q804 NC 3 2 1 D809 BAV99 3 1 2 C803 NC R833 0 OHM PT802 POWER X FMR 5 9 1 8 2 6 IC801 OZ9938GN DRV1 1 VDDA 2 TIMER 3 DIM 4 ISEN 5 VSEN 6 OVPT 7 NC1 8 NC2 9 ENA 10 LCT 11 SSTCMP 12 CT 13 GNDA 14 DRV2 15 PGND 16 C811 0 1uF R819 100K 1 10W 5 R843 10K 1 10W 5 R845 NC R844 10K 1 10W 5 R817 1M ...

Page 61: ...906 R922 200 1 8W C927 0 1uF R904 8K2 1 4W FG 1 2 FB901 Jumper 6 8 5 4 2 3 11 10 12 9 7 T901 POWER X FMR 80TL22T 5 L 1 2 3 D904 SP10100 C907 NC 1 2 HS2 HEAT SINK D904 C903 0 47UF L904 3 5uH ZD902 NC C916 0 1uF C920 0 1uF FG C900 NC R900 620K 1 4W R902 620K 1 4W C931 0 001uF 250V R901 620K 1 4W R941 100KOHM 1 2 3 D906 YG906C2RSC 93G 64 53 F ZD920 RLZ18B C932 0 001uF Q903 PMBS3904 57G 417 4 1 2 4 3 ...

Page 62: ...C R849 0R05 1 10W R846 0R05 1 10W D802 LL4148 D803 LL4148 D804 LL4148 3 1 2 D809 BAV99 C803 NC C812 1000uF 35V 5 9 1 8 2 6 PT801 POWER X FMR 5V DRV1 1 VDDA 2 TIMER 3 DIM 4 ISEN 5 VSEN 6 OVPT 7 NC1 8 NC2 9 ENA 10 LCT 11 SSTCMP 12 CT 13 GNDA 14 DRV2 15 PGND 16 IC801 OZ9938GN 56G 608900 C811 0 1uF R818 75K 1 10W R843 10K 1 10W R817 1M 1 10W R844 10K 1 10W C805 0 01uF R845 10K 1 10W 1 2 ZD802 RLZ5 6B ...

Page 63: ...L Power ON OFF CH CH SW01 TACT SW FWRD H1 5MM R02 8 2K1 10W 1 R03 4 32K 1 1 10W R04 2 74K 1 1 10W R05 1 8K OHM 1 1 10W C01 NC FUNC_KEY C07 NC C05 NC C03 NC C06 NC C02 NC C04 NC PWR SW C08 NC 77G 607 2 FD SW02 TACT SW FWRD H1 5MM SW03 TACT SW FWRD H1 5MM 3V3_STB SW04 TACT SW FWRD H1 5MM SW05 TACT SW FWRD H1 5MM SW06 TACT SW FWRD H1 5MM SW07 TACT SW FWRD H1 5MM ...

Page 64: ...G3540R1A000004M IRRV C02 NC 4 7uF 16V 033T8032 5F HR 081T 14 24 EL C01 0 1uF 16V BLUE VCC R11 15K OHM 1 10W RED 1 2 3 4 5 CN01 CONN 1 2 3 4 RED BLUE LED01 LED VOUT 1 GND 2 VCC 3 U01 GP18C38BAE LED_B LED_R 1 GND PIN GND PIN ...

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