Table of Contents
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18.5" 21.6" LCD TV
Service
Service
Service
Description
Table of Contents............................................................1
Important Safety Notice...................................................2
Revision List.........................................................3
1. General Specification..................................................4
2. Operating Instructions............................................5
2.1 The Use of Remote Control...................................5
2.2 To Use the Menus...............................................6
2.3 Front Panel Control Knobs..................................10
2.4 How to Connect................................................11
3. Input/Output Specification.......................................12
4. Mechanical Instructions.........................................14
5. Repair Flow Chart .............................................17
6. PCB Layout ......................................................24
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS
AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
TABLE OF CONTENTS
Page
Description
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
SAFETY NOTICE
1
Haier 48(55)LTV3002
Horizontal Frequency
31.5~48 KHz
Page
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Summary of Contents for Haier 48LTV3002
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Page 1: Table Of Contents
18.5″ 21.6″ LCD TV Haier 48(55)LTV3002 Service Service Service Horizontal Frequency 31.5~48 KHz TABLE OF CONTENTS Description Page Description Page 6.1 Main Board………..…………………...…….…..24 Table of Contents..……........…..1 6.2 Power Board…..…………..………….…..……..26 Important Safety Notice........……..2 6.3 Key Board………………………..……..………..32 Revision List…………………………………………………3 6.4 IR Board…………………………..……….……..32 1. -
Page 2: Important Safety Notice
Important Safety Notice Proper service and repair is important to the safe, reliable operation of all Haier Company Equipment. The service procedures recommended by Haier and described in this service manual are effective methods of performing service operations. Some of these service operations require the use of tools specially designed for the purpose. -
Page 3: Revision List
Revision List Revision Version Release Date Customer Model Model Instructions 48LTV3002 E199AANRW4H16N Sep.10,2010 Initial release 55LTV3002 E229GANRW4H16N... -
Page 4: General Specification
1. General Specification... -
Page 5: Operating Instructions
2. Operating Instructions 2.1 The Use of Remote Control... -
Page 6: To Use The Menus
2.2 To Use the Menus... -
Page 10: Front Panel Control Knobs
2.3 Front Panel Control Knobs... -
Page 11: How To Connect
2.4 How to Connect... -
Page 12: Input/Output Specification
3. Input/Output Specification 3.1 Input Signal Connector D-SUB Pin No. Description Pin No. Description Red Video No Pin Green Video Sync Ground Blue Video Serial Data for DDC Ground H. Sync Red Ground V. Sync Green Ground Serial Clock for DDC Blue Ground HDMI Pin No. - Page 13 3.2 Input Signal Timing...
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Page 14: Mechanical Instructions
4. Mechanical Instructions Step1. Remove the STAND BASE. Step2. Remove the REAR COVER. - Page 15 Step3. Remove the POWER BOARD, MAIN BOARD and separate the PANEL and BEZEL. Step4. Separate the PANEL and MAIN FRAME.
- Page 16 Step5. Remove the KEY BOARD, IR BOARD and SPEAKERS.
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Page 17: Repair Flow Chart
5. Repair Flow Chart 1. No power No power (LED “Off”) Check the AC input and Power “On” the power is “ON”? Power board output=5V? Replace the power board Check the IR board and LED Replace the IR board Replace the main board... - Page 18 2. Can’t start Can’t start（LED red） Replace the power board Power board output＝12/16V? Replace the key board Check the power key is under control? Replace the IR board Check the IR receiver is normal? Replace the main board Replace the Power board...
- Page 19 3. Abnormal Display Abnormal Display Reset the source Check the source Enter factory mode to do “EEPROM initial”&“Reset” Replace the main board Check the main board Check the LVDS cable Replace the LVDS cable Check the panel Replace the panel...
- Page 20 4. No display No display (LED white) Check TV is under control and power Replace the main board on/off by remote control and power key? Check the backlight is “On”? Check the LVDS cable Check the B/L signal is available? Reinsert or replace the LVDS cable Replace main board...
- Page 21 5. Sound problem No sound or sound abnormal Check the audio source connection and the TV system are correct? Reinsert the audio cable or change the TV system Check the TV is muted, adjust the volume or enter the menu to reset? Enter factory mode to do “Reset”...
- Page 22 6. Remote control malfunction Remote Control malfunction Check the remote control battery is Replace the battery not properly placed or no power? Use the other remote controls Replace the remote control Whether the IR board is Replace the IR board abnormal? Replace the main board...
- Page 23 7. OSD is unstable or can’t work normally OSD is unstable or can’t work normally Reconnect the key board Key board connected properly? Replace the button function Buttons are OK? Replace the key board Key board is OK? Enter factory mode to do “Reset” Replace the main board...
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Page 24: Pcb Layout
6. PCB Layout 6.1 Main Board 715G3365M03000004K... -
Page 26: Power Board
6.2 Power Board 48LTV3002 715G2783 3 7... - Page 29 55LTV3002 715G2783 2 7...
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Page 32: Key Board
6.3 Key Board 715G3303 1 6.4 IR Board 715G3540R1A000004M... -
Page 33: Adjustment/Fw Upgrade/Edid
7. Adjustment/FW Upgrade/EDID 7.1 Adiustment It’s no need to adjust the white 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 9. It will achieve the factory mode. - Page 34 7.2 FW Upgrade Step1. ISP instruction (Himax tool number: 715GT118-B) Step2. Setup ISP tool.
- Page 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.
- Page 37 Step4. ISP Tool Flash Update step...
- Page 40 Step5. Programming Step6. Verify FW version.
- Page 41 7.3 The Writing VGA & HDMI EDID Step1. Ready for 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.
- Page 42 Step3. Install TPV edid tool. 1. Double click this icon to install. 2. Double click this icon to run. This red frame contents detail information in VGA EDID file. 1. Click here to open this interface. 4. Click here to Read the file 3.
- Page 43 Step4. Click “FPD” to open the another interface as follows. 1. Tick LPT1 2. Click here to read file as figure 4.2 2. Click “open” to read the “.dat” file. figure 4.2...
- Page 44 Step5. Click “write EDID” to write EDID. If display “NG” in the yellow blank, which represent writing 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. 2.
- Page 45 Step6. Write HDMI EDID. Connection for writing HDMI EDID. Connect to TV HDMI port. Connect to PC LPT port. 12V DC input Notice: When writing HDMI EDID, the TV must be AC on, or the process can’t continue, and will prompt “NG”...
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Page 46: Block Diagram
8. Block Diagram HDMI EDID(U301) SDA,SCL Himax M2D U405 AV Line Out CN301 CVBS_O SCART CVBS Out RX0,RX1,RX2,RXCLK HDMI (Option) HDMI_RXA0,A1,A2,CLK (CN106&CN105) CN104 Y,Pb,Pr AINA2,AINB2,AINC2,SOG2 YPbPr CVBS AINA5 CN107 AV&S-VIDEO AINB4,AINC4 R,B,G,H,V AINA1,AINB1,AINC1 CN102 HSYNC,VSYNC RS232 CN101 Himax M2D HDMI/ADC CVBS AINA3 SC_R,SC_G,SC_B... - Page 47 5VSB VCC3 1084-33 1077mA 5VSB U701 VCC3AD VCC3AD VCC3IO / V33LV VCC3 VCC3IO / V33LV MX25L4005AM2C HX6201 U402 U405 822mA AVDD18 / VCCLV AVDD18 / VCCLV 1084_1.8 VCC18_CORE HX6202A U708 U405 281mA V33ADC / VCCADC / VDDA33 V33HDMI / VCCADC / VDDA33 5VSB VCC5 1084_33...
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Page 48: Wiring Diagram
9. Wiring Diagram Panel To Panel LVDS Cable 12 Pin 11 Pin CN701 CN902 2 Pin CN802 30 Pin CN404 2 Pin HX6201-A06MLAG CN801 Board U405 Scaler IC Power Board 2 Pin CN603 CN804 2 Pin CN803 CN01 CN402 4 Pin CN901 IR Board Speaker R/L... -
Page 49: Schematic Diagram
10. Schematic Diagram 10.1 Main Board 715G3365M03000004K 03) Power 5VSB 33A3802-12B R717 CONN V12_ADP 10K OHM 1/10W +12V R718 R719 C714 C715 10K OHM 1/10W 470uF/16V V_IPWM 0.1uF 50V R720 VCC3 VCC12 BL_ADJ C723 For 26" V12_ADP 1K OHM 1/16W FB702 =>61G1206000 Q707 FB702... - Page 50 04) HDMI U302 RXACLKN_M2 9 OUT1 OUT2 RXACLKP_M2 9 RXA0N_M2 OUT3 RXA0P_M2 OUT4 CN301 RXACLKN_M2 TMDSC- RXACLKP_M2 TMDSC+ RXA0N_M2 TMDSD0- RXA0P_M2 U303 TMDSD0+ RXA1N_M2 TMDSD1- OUT1 RXA1N_M2 RXA1P_M2 RXA1P_M2 TMDSD1+ OUT2 RXA2N_M2 RXA2N_M2 TMDSD2- OUT3 RXA2P_M2 RXA2P_M2 TMDSD2+ OUT4 SP302 SP306 SP303 SP307...
- Page 51 05) Tuner 5V for Tuner Add Thermal Pad +5VT R202 U202 FB202 +5VT VCC12 AZ1117D-5.0-E1 300 OHM TUN_AUD TUN_AUD R203 47 OHM 1/2W INPUT OUTPUT R204 R205 47 OHM 1/2W Put short symbol near by 0 OHM 1/10W ADJ/GND C204 C205 1.
- Page 52 06) VGA/YPbPr Connector FB101 FB604 80 OHM R103 UART_RX 100R 1/10W 5% 33R 1/10W 5% R102 390 OHM 1/10W VGA_VIN VSYNC R/G/B : 75 Ohm Trace C102 SOGAIN VSY NC ZD602 100pF R105 390 OHM 1/10W RED_GND R104 RGB_G1 C101 R106 C103 GAIN...
- Page 53 07) Scart SV/AV L101 R139 AVI/Y 1 R140 C132 SCR_Y 100R 1/10W 5% 0.1uF 50V 2.2uH 18R OHM 1/16W 5% Csync/CVBS/ D116 C134 C135 S-Video(Y) CN101 SP115 220pF R142 AVI/Y 1 56 OHM 1/16W AV_G1 Input SCA1I_L SCA1I_L R141 C133 SCR_AU_L 4.7uF/16V 27K 1/16W 5%...
- Page 54 08) M2D HDMI/Analog I/O V33ADC HDMI 3.3V POWER V33_ADC FB302 V33ADC1 V33HDMI AVDD18 300 OHM V18_33HDMI V33HDMI V33ADC_PLL C305 C306 10uF/16V 0.1uF 50V C301 0.01UF25V C307 V33ADC_PLL 0.1uF 50V C311 R314 0.1UF16V U405A FILT 1K621/10W FILT VCC18 HSY NC HSY NC RXACLKN_M2 VSY NC HDMI_RXACKN...
- Page 55 09) M2D Audio 5VSB V33AUD SIF1+ VCC3AD VCC3 R602 0 OHM 1/16W C602 0.1uF 50V SIF1- R603 FB606 V33_AUD 10K OHM 1/10W AUDIO 1.8V POWER VCC3AD FB602 300 OHM V33AUD R604 C603 U405B 0.1uF 50V C663 C661 300 OHM SIF1- 0.1uF 50V 0.1uF 50V R605...
- Page 56 10) M2D MCU IRDAT VCC3 IRDAT 5VSB VCC3 VCC3 Q402 5VSB C402 PMBS3906 R402 0.22uF Q403 IRVCC C403 4.7K OHM 1/16W PMBS3906 FB402 150OHM 0.22uF C423 U404 R403 FB403 150OHM IR_D IRVCC 10uF/16V IR_D 4.7K OHM 1/16W U402 LEDY LED_Y R404 10K OHM 1/10W R405...
- Page 57 11) M2D LVDS 5VSB PN swap for layout R510 10K OHM 1/10W CN407 R523 10K OHM 1/10W R522 10K OHM 1/10W R518 10K OHM 1/10W R519 10K OHM 1/10W R526 10K OHM 1/10W R512 10K OHM 1/10W U405C R509 10K OHM 1/10W GPIO_18/GVON SCL_A_Tuner 6 SDA_A_Tuner 6...
- Page 58 12) Component and USB R273 0R05 1/10W 5% PR_IN0 R209 VCC5 FB222 VBUS C265 R263 C255 USB_DM C263 CN703 USB_DP Q215 PR2_IN R211 L209 R277 R261 R294 C264 C253 ZD201 ZD202 R280 FOR EMI R274 0R05 1/10W 5% Y _IN0 USB_GND R279 C258...
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Page 59: Power Board
10.2 Power Board 48LTV3002 715G2783 3 7 R918 L904 100 OHM 1/4W C921 3.5uH R919 +12V 100 OHM 1/4W R920 0.001uF 100 OHM 1/4W R940 ZD920 C918 150 OHM +-5% RLZ13B 1000uF/25V C920 C922 470uF25V C917 0.1uF D906 1000uF/25V R943... - Page 60 CN801 C819 +12V R805 100R 1/10W 5% C820 CN802 ON/OFF JUMPER CONN D801 PT802 Q805 POWER X'FMR R833 0 OHM R806 100R 1/10W 5% L801 ZD802 RLZ5.6B C816 ZD803 D802 10pF/6KV RLZ5.6B AO4616 R803 R804 5K1 1/10W C824 10pF/6KV Q806 5K1 1/10W R807 100R 1/10W 5% C802...
- Page 61 55LTV3002 715G2783 2 7 R918 100R 1/4W C921 0.001uF F902 R919 +16V T901 100R 1/4W JUMPER C917 C918 L904 POWER X'FMR 1000uF25V 1000uF25V 3.5uH ZD920 R940 80TL22T 5 L RLZ18B R920 150R 2W C920 100R 1/4W C922 0.1uF 470UF/25V R908 R943 C906 BD901...
- Page 62 PT802 CN801 CONN C819 68pF/3KV R805 +16V 100R 1/10W C820 CN802 ON/OFF D801 68pF/3KV CONN Q805 AO4616 PT801 POWER X'FMR R806 LL4148 100R 1/10W L801 D802 C816 22pF/6KV 57T 600517 R804 ZD802 R803 ZD803 C824 5K1 1/10W 22pF/6KV RLZ5.6B 5K1 1/10W LL4148 RLZ5.6B Q806...
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Page 63: Key Board
10.3 Key Board 715G3303 1 SW01 VOL+ TACT SW FWRD H1.5MM 20K OHM 1% 1/10W SW02 VOL- TACT SW FWRD H1.5MM 8.2K1/10W 1% SW03 3V3_STB TACT SW FWRD H1.5MM 4.32K 1% 1/10W CN01 SW04 PWR-SW FUNC_KEY TACT SW FWRD H1.5MM 2.74K 1% 1/10W CONN 033G8032 4F... -
Page 64: Ir Board
10.4 IR Board 715G3540R1A000004M LED01 BLUE CONN 081T 14 24 EL LED_R LED_B IRRV VOUT 15K OHM 1/10W GP18C38BAE CN01 0.1uF/16V NC/4.7uF/16V 033T8032 5F HR GND PIN GND PIN...