Haier HL42XP22 Service Manual
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Haier HL42XP22 Service Manual

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42" LCD TV
Service
Service
Service
Description
Table of Contents............................................................1
Important Safety Notice...................................................2
Revision List.........................................................3
1. General Specification..................................................4
2. Operating Instructions............................................6
3. Input/Output Specification.........................................7
4. Mechanical Instructions...........................................9
5. Repair Flow Chart .............................................12
6. PCB Layout ......................................................17
6.1 Main Board.......................................................17
6.2 Power Board.....................................................19
6.3 LED Board........................................................22
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
All manuals and user guides at all-guides.com

TABLE OF CONTENTS

Page
6.4 Key Board.....................................................22
6.5 IR Board.......................................................23
7. Adjustment..............................................................24
8. Block Diagram........................................................25
9. Wiring Diagram......................................................26
10. Schematic Diagram........................................27
10.1 Main Board..................................................27
10.2 Power Board.................................................39
10.3 LED Board...................................................40
10.4 Key Board...................................................41
10.5 IR Board.....................................................42
SAFETY NOTICE
1
Description
Haier HL42XP22
Horizontal Frequency
31~68 KHz
Page

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Summary of Contents for Haier HL42XP22

  • Page 1: Table Of Contents

    All manuals and user guides at all-guides.com 42″ LCD TV Haier HL42XP22 Service Service Service Horizontal Frequency 31~68 KHz TABLE OF CONTENTS Description Page Description Page 6.4 Key Board………………………..……..………..22 Table of Contents..……........…..1 6.5 IR Board…………………………..……….……..23 Important Safety Notice........……..2 7. Adjustment..............24 Revision List…………………………………………………3...

  • Page 2: Important Safety Notice

    All manuals and user guides at all-guides.com 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.

  • Page 3: Revision List

    All manuals and user guides at all-guides.com Revision List Version Release Date Revision Instructions Model Jul.7,2010 Initial release E42AAZNKWNH6NNX...

  • Page 4: General Specification

    Supported scan rate: 640x480@60/72/75Hz, 720x400@70Hz, 800x600@56/60/72/75Hz, 1024x768@60/70/75Hz, 1280x720@60Hz, 1280x768@60Hz. Note: 1360x768@60Hz: For HL32P2 only. 1280x1024@60Hz, 1440x900@60Hz, 1680x1050@60Hz, 1920x1080@60Hz: For HL42XP22 only. Rear Connectors Recommended: For HL32P2: 1360x768@60Hz For HL42XP22: 1920x1080@60Hz Component Video and L/R Audio input Supported resolution: 480i,480p,720p,1080i, 1080p...
  • Page 5 All manuals and user guides at all-guides.com Model No. HL32P2 HL42XP22 WALL MOUNTING VESA-compatible wall bracket 200 x 200 mm 400 x 200 mm (W x H) Screw type Metric 6 x 10 mm Metric 6 x 10 mm POWER...

  • Page 6: Operating Instructions

    All manuals and user guides at all-guides.com 2. Operating Instructions Please refer to user manual which is attached in this service manual.

  • Page 7: Input/Output Specification

    All manuals and user guides at all-guides.com 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 SDA(Remote Control) SCL(Remote Control) Serial Data for DDC Ground H-Sync Red Ground V-Sync...
  • Page 8 All manuals and user guides at all-guides.com 3.2 Input Signal Timing Analog RGB VESA MODES Horizontal Vertical Nominal Nominal Nominal Sync Sync Pixel Mode Resolution Total Frequency Freq. Polarity Polarity Clock (KHz) (Hz) (MHz) 640x480@60Hz 800 x 525 31.469 59.940 25.175 640x480@72Hz 832 x 520...

  • Page 9: Mechanical Instructions

    All manuals and user guides at all-guides.com 4. Mechanical Instructions Step1. Remove the REAR COVER and BASE. Step2. Remove the MAIN BOARD and POWER BOARD.
  • Page 10 All manuals and user guides at all-guides.com Step3. Remove the BKT and SPEAKERS.
  • Page 11 All manuals and user guides at all-guides.com Step4. Separate the BEZEL and PANEL. Step5. Remove the IR BOARD, KEY BOARD and LED BOARD.

  • Page 12: Repair Flow Chart

    All manuals and user guides at all-guides.com 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 13 All manuals and user guides at all-guides.com 2. Can’t start Can’t start (LED Red) Replace the power board Power board output＝24V? 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 14 All manuals and user guides at all-guides.com 3. No display No display (LED Blue) 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...
  • Page 15 All manuals and user guides at all-guides.com 4. 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? Check the cable between the speakers and main board is ok?
  • Page 16 All manuals and user guides at all-guides.com 5. Remote Control malfunction OSD is unstable or can’t work normally Key board connected properly? Reconnect the key board Buttons are ok? Replace the button function Replace the key board Key board is ok? Replace the main board 6.

  • Page 17: Pcb Layout

    All manuals and user guides at all-guides.com 6. PCB Layout 6.1 Main Board 715G3269M01003005K...
  • Page 18 All manuals and user guides at all-guides.com...

  • Page 19: Power Board

    All manuals and user guides at all-guides.com 6.2 Power Board 715G3885P01W20003M...
  • Page 20 All manuals and user guides at all-guides.com...
  • Page 21 All manuals and user guides at all-guides.com...

  • Page 22: Led Board

    All manuals and user guides at all-guides.com 6.3 LED Board 715G4252T01000004S 6.4 Key Board 715G4234K01000004S...

  • Page 23: Ir Board

    All manuals and user guides at all-guides.com 6.5 IR Board 715G4247R01000004S...

  • Page 24: Adjustment

    All manuals and user guides at all-guides.com 7. Adjustment It’s no need to adjust the white balance for this model, do ADC only. Step1: Turn on the TV, press “Menu”, then press number key 1 9 and “ENTER”, it will achieve the factory mode.

  • Page 25: Block Diagram

    All manuals and user guides at all-guides.com 8. Block Diagram P24V P24V Inverter & Audio Amplifier P12V P12V U708 G9084 Tuner P12V Tuner LVDS U710 SC4525BSETRT PANEL_5V Reserve ENV56S02D8F LCD PANEL With MEMC MEN,MCFG0,MCFG1,MODE +5VSB 3V3_STB 1V8_STB GPIO*4 POWER +5VSB U706 G5622ADJ U702 AIC1084-18PE System...

  • Page 26: Wiring Diagram

    All manuals and user guides at all-guides.com 9. Wiring Diagram Panel LVDS Cable 42 Pin 12 Pin CN405 CN905 ZR39785HGCF (U401) Scaler IC CN606 Power Board CN701 Board AC IN 10 Pin CN901 CN403 CN001 IR Board Speaker Speaker CN01 CN301 6 Pin LED Board...

  • Page 27: Schematic Diagram

    All manuals and user guides at all-guides.com 10. Schematic Diagram 10.1 Main Board 715G3269M01003005K 3) Tuner FB201 600 OHM FB203 600 OHM U401P C201 C202 C203 C217 C269 0.1uF/16V 1uF/16V 0.1uF/16V 10U 16V 1uF/16V Demodulator D3V3 TU201 TUNER SIF_N SIF_AINN SIF_P C207 C205...
  • Page 28 All manuals and user guides at all-guides.com 4) AV/YPbPr Inputs D3V3 R276 10K 1/10W 5% R277 100R 1/10W 5% AV1_S_DET 5 FB204 30 OHM S1_Y U401F S1_C FB205 30 OHM AV1 Input U201 Video In I/F VCC5D AZC099-04S R216 R217 S1_Y C222 220N 10V...
  • Page 29 All manuals and user guides at all-guides.com 5) HDMI Inputs Run As 100 Ohm Differential Pairs Run As 100 Ohm Differential Pairs CN501 HDMI VCC5D U401O U501 HDMI2_D0P HDMI2_CLKN HDMI2_CLKN HDMI1 I/F TMDSD0+ Line-1 HDMI2_D0N HDMI2_CLKP L501 NC/90 ohm TMDSD0- Line-2 HDMI2_CLKP HDMI3_D2P...
  • Page 30 All manuals and user guides at all-guides.com 6) VGA/HDMI Inputs D3V3 R251 VGA5V R252 10K 1/10W 5% UART0_TX R253 220R 1/10W 5% VGA Input UART0_TX UART0_RX R254 220R 1/10W 5% UART0_RX ZD203 VGA_R FB221 30 OHM VGA_R VGA_SDA VGA_G R256 100R 1/10W 5% FB222 30 OHM...
  • Page 31 All manuals and user guides at all-guides.com 7) SIO I/F D3V3 D3V3 EJTAG I/F U401C R404 R405 R406 R407 R408 R409 R401 MCU Reset 2 Circuit SIO I/F 4K7 1/10W 5% 4K7 1/10W 5% 4K7 1/10W 5% 1K 1/10W 5% CN401 3V3_STB 3V3_STB...
  • Page 32 All manuals and user guides at all-guides.com 8) GPIO Block U401K GPIO D3V3 TVMicro Bootstrap 3V3_STB Bootstrap Configuration BOOT_STRAP0 BOOT_STRAP0 Configuration DEMOD_RSTN 3 GPIO_P0 BOOT_STRAP1 BOOT_STRAP1 GPIO_P1 BOOT_STRAP2 BOOT_STRAP2 GPIO_P2 BOOT_STRAP3 BOOT_STRAP3 R450 R451 GPIO_P3 3V3_STB BL_ON_OFF 4K7 1/10W 5% 4K7 1/10W 5% BL_ON_OFF 10,14 GPIO_P4...
  • Page 33 All manuals and user guides at all-guides.com 9) DDRII SDRAM I/F S0_DQ[0:15] D1V8 D1V8 U401A R492 S0_A[0:12] S0 Memory I/F C442 100R 1/10W 1% S0_DQ15 S0_A13 0.1uF/16V S0_DQ15 S0_A13 S0_DQ14 S0_A12 S0_A0 S0_VREF S0_VREF S0_DQ14 S0_A12 VREF S0_DQ13 S0_A11 S0_A1 S0_DQ13 S0_A11 S0_DQ12...
  • Page 34 All manuals and user guides at all-guides.com 10) LVDS I/F D3V3 D3V3 D3V3 R4A5 R4G7 U401R U401N 1K 1/10W 5% 4.7K 1/10W MCFG1 FET 2N7002K R463 Q409 VCC1V1 Power D3V3 Ground C462 C463 C464 C465 C466 C467 C468 Panel_Ctrl_1 I2C0_SCL MCFG1 MCFG0 GND48...
  • Page 35 All manuals and user guides at all-guides.com 11) Audio Inputs U401E Audio IN CN601 AV1_Audio_L C601 2.2UF6.3V LINE_IN1_L R601 10K 1/10W 5% AV1_Audio_L AV1_Audio_R C602 2.2UF6.3V LINE_IN1_R R603 10K 1/10W 5% AV1_Audio_R AV2_Audio_L C603 2.2UF6.3V Audio AV2_Audio_L LINE_IN2_L AV2_Audio_R C606 2.2UF6.3V AV2_Audio_R LINE_IN2_R...
  • Page 36 All manuals and user guides at all-guides.com 12) Audio Amplifier P12V Pop-Less Circuit +5VSB R643 R644 150R 1/10W 5% R648 22K 1/10W 5% 2K2 1/10W 5% AUD_SHDN Q602 AUD_SHDN PD_MUTE MMBT3904 U601 PD_MUTE R651 R646 R642 AUD_SHDN Q604 RESET R636 MMBT3904 3K9 1/10W 1% 10K 1/10W 5%...
  • Page 37 All manuals and user guides at all-guides.com 13) Earphone/AV Outputs 5V_HP VCC5D D605 C619 C661 RB160M-60TE25 0.1uF/16V 100uF/16V D3V3 EarPhone EarP_L EarP_R U604 R676 R677 Output C662 20K 1/10W 1% 7K5 1/10W 5% R679 R680 C663 AMP_LIN 7K5 1/10W 5% 20K 1/10W 1% R678 11,12...
  • Page 38 All manuals and user guides at all-guides.com 14) Power +5VSB 3V3_STB FB704 U706 L705 4.7uH 3V3_STB U702 1V8_STB 300 OHM AIC1084-18PE C701 100pF From PS_ON C744 C777 C767 C705 C702 C778 R741 R702 100R 1/10W 5% 10U 16V 1uF/16V 22uF 0.1uF/16V 220uF 10V 10uF 10V...

  • Page 39: Power Board

    All manuals and user guides at all-guides.com 10.2 Power Board 715G3885P01W20003M FB902 D909 1N5408-E R950 BEAD D901 FB906 4.7R 1W R951 R952 C946 BD901 L906 FMXA-1106S BEAD 100K 1/4W 0.1NF 2KV D911 GBJ1008 C931 600uH 10% C932 C905 100K 1/4W SBT15006JST L907 1uF/520V...

  • Page 40: Led Board

    All manuals and user guides at all-guides.com 10.3 LED Board 715G4252T01000004S L301 CN301 LED_B LED_R BLUE C301 0.1uF 12-22/BHR6C-C31/2C CONN L302 33G8032 4F HR R303 0R05 1/10W BLUE R304 220 OHM 1/10W 12-22/BHR6C-C31/2C L303 LED_B Q302 MMBT3904 12-22/BHR6C-C31/2C 3 EL R301 0R05 1/10W R302...

  • Page 41: Key Board

    All manuals and user guides at all-guides.com 10.4 Key Board 715G4234K01000004S SW001 VOL+ 2.48V ~ 2.72V TACT SW FWRD H1.5MM R001 7.5K +-1% 1/10W SW002 VOL- 2.04V ~ 2.22V TACT SW FWRD H1.5MM R002 2.7KOHM +-1% 1/10W SW003 1.58V ~ 1.79V TACT SW FWRD H1.5MM R003 1.8K +-1% 1/10W...

  • Page 42: Ir Board

    All manuals and user guides at all-guides.com 10.5 IR Board 715G4247R01000004S LED01 BLUE 12 10 EL CN01 LED_R U201 LED_B IRRV VOUT 15K OHM 1/10W FM-6038TM2-5AN CONN 0.1uF/16V NC/4.7uF/16V 56T 627 33G8032 5F HR...

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