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Haier HL42XD1 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............................................5
2.1 The Use of Remote Control...................................5
2.2 To Use the Menu.................................................6
2.3 How to Connect................................................11
2.4 Front Panel Control Knobs..................................12
3. Input/Output Specification.......................................13
4. Mechanical Instructions.........................................15
5. Repair Flow Chart ..............................................19
6. PCB Layout .......................................................23
6.1 Main Board.......................................................23
6.2 Power Board.....................................................25
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
6.3 Inverter Board.................................................28
6.4 Key Board.....................................................28
6.5 IR Board.......................................................29
7. Adjustment..............................................................30
8. Block Diagram........................................................33
9. Wiring Diagram......................................................34
10. Schematic Diagram........................................35
10.1 Main Board..................................................35
10.2 Power Board.................................................47
10.3 Inverter Board................................................52
10.4 Key Board...................................................53
10.5 IR Board.....................................................54
11. Exploded View...............................................55
12. BOM List.....................................................57
SAFETY NOTICE
1
Haier HL42XD1
Horizontal Frequency
31~68 kHz
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  Summary of Contents for Haier HL42XD1

  • Page 1: Table Of Contents

    42 LCD TV Haier HL42XD1 Service Service Service Horizontal Frequency 31~68 kHz TABLE OF CONTENTS Description Page Description Page Table of Contents..……........…..1 6.3 Inverter Board……..…...……..…………..……..28 Important Safety Notice........……..2 6.4 Key Board………………………..……..………..28 Revision List…………………………………………………3 6.5 IR Board…………………………..……….……..29 1. General Specification.........………..4 7. Adjustment..............30 2.
  • Page 2: Revision List

    Haier HL42XD1 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: General Specification

    42 LCD TV Haier HL42XD1 1. General Specification...
  • Page 4: Operating Instructions

    42 LCD TV Haier HL42XD1 2. Operating Instructions 2.1 The Use of Remote Control...
  • Page 5: To Use The Menu

    42 LCD TV Haier HL42XD1 2.2 To Use the Menus 1. Press the MENU/EXIT button to display or close the main menu. 2. Use the Navigation Ring to move around to select, adjust or confirm an item in the OSD (On Screen Display) menu.
  • Page 6 42 LCD TV Haier HL42XD1 3. Contrast: Video contrast adjustment, the tuning range is 0 ~ 100. 4. Sharpness: Video sharpness adjustment, the tuning range is 0 ~ 100. 5. Color: Video color chroma adjustment, the tuning range is 0 ~ 100.
  • Page 7 42 LCD TV Haier HL42XD1 1. Menu Language: Select the menu display language. (English / Français / Español) 2. Time: Set current time. The sub-menu includes Time Mode, Time Zone and Daylight Savings. [Time Mode] – Choose from Auto or Manual.
  • Page 8 42 LCD TV Haier HL42XD1 6. Parental Control: provide the parental Control (V-chip) function setting. Before entering the Parental Control sub-menu, user has to key in the password first. Enter the Parental Locks item, then the user can modify the restricted table about MPAA or TV Rating respectively.
  • Page 9 42 LCD TV Haier HL42XD1 13. Reset to Default: Restore all the default settings. VGA Menu This option only shows and is available in VGA mode, which provides several items for the VGA display fine tuning. 1. H-Position: Adjust the horizontal position of the picture. (0-100) 2.
  • Page 10: How To Connect

    42 LCD TV Haier HL42XD1 2.3 How to Connect 1. HDMI – Connect the primary source for digital video such as a DVD multimedia player or set top box through this all digital connector. The white color band on the rear of the TV indicates this connection.
  • Page 11: Front Panel Control Knobs

    42 LCD TV Haier HL42XD1 2.4 Front Panel Control Knobs...
  • Page 12: Input/Output Specification

    42 LCD TV Haier HL42XD1 3. Input/Output Specification 3.1 RGB Signal input 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 13 42 LCD TV Haier HL42XD1 3.3 Signal type AV (Composite Video input) Video System NTSC Amplitude 1.0 V(p-p), negative sync. Impedance 75 ohm terminated S-Video (Y / C input) S-Video System NTSC Y signal amplitude 1.0Vpp (including sync) C signal amplitude 0.286Vpp...
  • Page 14: Mechanical Instructions

    42 LCD TV Haier HL42XD1 4. Mechanical Instructions 1. Remove the stand and base. 2. Remove rear cover.
  • Page 15 42 LCD TV Haier HL42XD1 3. Release the connectors and remove inverter board. 4. Remove main board and power board.
  • Page 16 42 LCD TV Haier HL42XD1 5. Remove BKT, speakers IR board and key board.
  • Page 17 42 LCD TV Haier HL42XD1 6. Remove the BKT and separate panel and bezel.
  • Page 18: Repair Flow Chart

    42 LCD TV Haier HL42XD1 5. Repair Flow Chart No Picture (LED Orange) No picture Check key board/IR board Change key board/IR board Check 24V power supply Check the power supply circuit Check main board Standby power supply Change U706...
  • Page 19 42 LCD TV Haier HL42XD1 Abnormal Display Reset source Check the source Replace the filter or resistance Check signal filter circuit Check input RF signal Check TV system setup Replace LVDS cable Check Tuner Check LVDS cable Check panel Replace panel...
  • Page 20 42 LCD TV Haier HL42XD1 No Power (No LED Indicator) Plug in power cord and interface Check power cord and board interface Replace F901 or BD901 or C929 Check F901, BD901, C929 Check IC901 Replace IC901 Replace T901 Check T901...
  • Page 21 42 LCD TV Haier HL42XD1 Key Board OSD is unstable or not working Is Key Pad Board connecting normally? Connect Key Pad Board Is Button Switch normally? Replace Button Switch Replace Key Pad Board Is Key Pad Board Normally? Check Main Board...
  • Page 22: Pcb Layout

    42 LCD TV Haier HL42XD1 6. PCB Layout 6.1 Main Board 715G3269 1...
  • Page 23 42 LCD TV Haier HL42XD1...
  • Page 24: Power Board

    42 LCD TV Haier HL42XD1 6.2 Power Board 715G3351 1...
  • Page 25 42 LCD TV Haier HL42XD1...
  • Page 26 42 LCD TV Haier HL42XD1...
  • Page 27: Inverter Board

    42 LCD TV Haier HL42XD1 6.3 Inverter Board 715G3358 1 6.4 Key Board 715G3528K01000001M...
  • Page 28: Ir Board

    42 LCD TV Haier HL42XD1 6.5 IR Board 715T3107 1...
  • Page 29: Adjustment

    42 LCD TV Haier HL42XD1 7. Adjustment 7.1 ADC Adjustment . In the TV mode adjust volume to zero, press menu key and then press number key 1 Æ 9 Æ 9 Æ 9. It will achieve the factory mode. Select the item of White Balance and press right key to enter it.
  • Page 30 42 LCD TV Haier HL42XD1 Note: We do the HDMI white balance to cover the white balance of all source modes, this method is meeting to the Zoran 775 software. HDMI mode: . In the TV mode adjust volume to zero, press menu key and then press number key 1 Æ 9 Æ 9 Æ 9. It will achieve the factory mode.
  • Page 31 42 LCD TV Haier HL42XD1 black balance, until the Ca210 show x =266, y =277. 6. Use the item R Gain and B Gain to adjust white balance: use 100 IRE (Pattern 105) signal, and adjust the white balance, until the Ca210 show x =266, y =277.
  • Page 32: Block Diagram

    42 LCD TV Haier HL42XD1 8. Block Diagram P24V P24V Inverter & Audio Amplifier P12V P12V U708 G9084T43U U709 AZ1117D-5.0-E1 Tuner P12V U710 SC4525BSETRT PANEL_5V ENV56S02D8F CVBS LVDS LCD PANEL +5VSB 3V3_STB 1V8_STB POWER +5VSB U701 G1084-33T43Uf U702 AIC1084-18PE BOARD...
  • Page 33: Wiring Diagram

    42 LCD TV Haier HL42XD1 9. Wiring Diagram Panel LVDS Cable CN8801 24 Pin CN405 CN8802 Inverter CN802 Board ZR39785HGCF-B U401 CN606 CN903 Power Board Scaler IC CN801 CN701 Board 10 Pin CN403 4 Pin CN001 5 Pin IR Board...
  • Page 34: Schematic Diagram

    42 LCD TV Haier HL42XD1 10. Schematic Diagram 10.1 Main Board 715G3269 1 3) Tuner C265 C266 0.0022uF 0.0022uF FB201 600 OHM FB202 C267 U401P FB203 600 OHM 1uF/16V C201 C202 C203 Demodulator TU201 TUNER D3V3 0.1uF/16V 0.1uF/16V SIF_IN C204 NC/0.1uF/16V...
  • Page 35 42 LCD TV Haier HL42XD1 4) AV/YPbPr Inputs D3V3 R276 10K OHM 1/10W R277 100 OHM 1/10W AV1_S_DET 5 FB204 30 OHM R214 0 OHM 1/10W S1_Y U401F FB205 30 OHM R215 0 OHM 1/10W S1_C AV1 Input U201 Video In I/F...
  • Page 36 42 LCD TV Haier HL42XD1 5) HDMI Inputs Run As 100 Ohm Differential Pairs Run As 100 Ohm Differential Pairs CN501 HDMI VCC5D U401O U501 3V3_STB HDMI2_D0P HDMI2_CLKN HDMI2_CLKN HDMI1 I/F TMDSD0+ Line-1 HDMI2_D0N HDMI2_CLKP L501 NC/90 ohm TMDSD0- Line-2...
  • Page 37 42 LCD TV Haier HL42XD1 6) VGA/HDMI Inputs VCC5D VGA Input R251 10K OHM 1/10W VGA5V R252 10K OHM 1/10W UART0_TX R253 220 OHM 1/10W UART0_TX CN206 UART0_RX R254 220 OHM 1/10W DB15 C252 UART0_RX 0.1uF/16V ZD203 FB221 30 OHM...
  • Page 38 42 LCD TV Haier HL42XD1 7) SIO I/F D3V3 +5VSB CN406 D3V3 NC/CONN UART0_TX R402 3V3_STB U401C R404 R405 R406 R407 R408 KEY _IR D3V3 R409 R401 4.7K OHM 1/10W NC/33 OHM 1/10W 4.7K OHM 1/10W 1K OHM 1/10W SIO I/F 4.7K OHM 1/10W...
  • Page 39 42 LCD TV Haier HL42XD1 8) GPIO Block D3V3 TVMicro Bootstrap D3V3 Bootstrap Configuration U401K Configuration GPIO 3V3_STB R450 R451 BOOT_STRAP0 BOOT_STRAP0 D3V3 DEMOD_RSTN 3 GPIO_P0 BOOT_STRAP1 BOOT_STRAP1 4.7K OHM 1/10W 4.7K OHM 1/10W GPIO_P1 TRIN_RESETN 7 BOOT_STRAP2 BOOT_STRAP2 GPIO_P2...
  • Page 40 42 LCD TV Haier HL42XD1 9) DDRII SDRAM I/F S0_DQ[0:15] DDR1V8 DDR1V8 U401A R492 S0 Memory I/F S0_A[0:12] C442 100 OHM 1% 1/10W 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...
  • Page 41 42 LCD TV Haier HL42XD1 10) LVDS I/F CN404 D3V3 U401J CONN U401R U401N VCC1V1 D3V3 LVDS I/F Power Ground LVDS_CKE_P LVDS_D4O_N LVDS_D4O_P C462 C463 C464 C465 C466 C467 C468 AF24 L402 NC/90 ohm LVDS_D3O_N LVDS_D3O_P LVDS_CE_P GND48 GND49 AE24...
  • Page 42: Spdif Output

    42 LCD TV Haier HL42XD1 11) Audio Inputs CN601 FB601 0 OHM 1/10W R601 10K OHM 1/10W AV1_Audio_L Audio FB602 0 OHM 1/10W R603 10K OHM 1/10W AV1_Audio_R U401E C604 C605 Input ZD601 ZD602 R606 R607 Audio IN 100pF 100pF...
  • Page 43 42 LCD TV Haier HL42XD1 12) Audio Amplifier A24V D601 RB160M-60TE25 C629 R634 A24V P12V +5VSB A24V VCC5D 470uF 35V 10K OHM 1/10W D3V3 D3V3 R635 D602 LL4148 PD_MUTE PD_MUTE R636 R632 R637 R638 R639 51K OHM 1/10W 100K OHM 1/10W...
  • Page 44 42 LCD TV Haier HL42XD1 13) Earphone/AV Outputs VCC5D 5V_HP R675 D605 C619 C661 RB160M-60TE25 0.1uF/16V 470uF/10V D3V3 EarPhone EarP_L EarP_R Output U604 R676 R677 C662 20K OHM 1/10W 7.5K OHM 1/10W R679 R680 AMP_LIN 7.5K OHM 1/10W 20K OHM 1/10W...
  • Page 45 42 LCD TV Haier HL42XD1 14) Power 3V3_STB 1V8_STB VCC5D U703 D3V3 U702 From R701 100 OHM 1/10W PS_ON AIC1084-18PE G1084-33T43Uf R702 100 OHM 1/10W Power BL_ON_OFF 3.3V VOUT FB701 120 OHM Board BL_BR_CTRL 0~3.3V 10 C706 C704 C717 C713...
  • Page 46: Power Board

    42 LCD TV Haier HL42XD1 10.2 Power Board 715G3351 1 SG901 RV902 R901 300K OHM 1/4W SG903 C902 680pF 2.0MH 20.0MH RV903 L901 L902 L903 R902 RV901 300K OHM 1/4W Varistor C901 C904 0.47uF 0.47uF 20.0MH BD901 CN901 FB901 D10XB60...
  • Page 47 42 LCD TV Haier HL42XD1 R801 0.1 ohm HEAT SINK (Q806) C802 T802 2.2uF 25V X7R R843 D801 Q801 C822 T801 R839 200 OHM 1/8W 1N4148-B4006 2SK4086LS 2.2uF 25V X7R R845 D808 Q806 T803 10R 1/8W 5% R832 R841 200 OHM 1/8W...
  • Page 48 42 LCD TV Haier HL42XD1 1.5 KOHM +-5% 1/4W 1.5 KOHM +-5% 1/4W R908 T902 R907 POWER X'FMR FB902 BEAD R904 4.7 OHM 1W R905 R906 100K OHM 1/4W 100K OHM 1/4W R985 R986 C907 C908 L906 D907 1.5 KOHM +-5% 1/4W 1.5 KOHM +-5% 1/4W...
  • Page 49 42 LCD TV Haier HL42XD1 L904 D901 FMXA-1106S P:S=50:28 D920 C927 1uF/520V SUF305B C929 C930 C928 100uF M 450V 100uF M 450V 0.1NF2KV D908 1N5408-E3/73 0.1OHM2W R943 R942 3.3M OHM 1/14W 1N4148 R944 D909 0.1OHM2W 100R 1/8W 5% VCC1 R945...
  • Page 50 42 LCD TV Haier HL42XD1 T901 POWER X'FMR R963 R964 L907 100K OHM 1/4W 100K OHM 1/4W C942 D910 0.1NF2KV SBT15006JST D911 D919 JUMPER PR1007 3.5uH R965 R966 D912 C944 C948 100K OHM 1/4W 100K OHM 1/4W SARS01-V1 0.0022uF C961 C962 0.1uF...
  • Page 51: Inverter Board

    42 LCD TV Haier HL42XD1 10.3 Inverter Board 715G3358 1 R8801 D8801 100R 1/8W 5% 1N4148 CN8801 R8802 D8802 100R 1/8W 5% 1N4148 D8825 R8803 D8803 1N4148 100R 1/8W 5% 1N4148 R8804 10K 1/8W 5% R8806 D8804 100R 1/8W 5%...
  • Page 52: Key Board

    42 LCD TV Haier HL42XD1 10.4 Key Board 715G3528K01000001M SW001 VOL+ ~2.59V R001 7.5KOHM +-1% 1/10W SW002 ~2.12V VOL- R002 2.7KOHM +-1% 1/10W 3V3_STB SW003 ~1.72V R003 C001 1.8K OHM 1% 1/10W CN001 NC/0.1uF/16V SW004 ~1.29V PWR-SW FUNC_KEY R004 1K OHM 1% 1/10W...
  • Page 53: Ir Board

    42 LCD TV Haier HL42XD1 10.5 IR Board 715T3107 1 LED01 LED_R CN01 LED_R LED_B 0.1uF IRRV LED_B VOUT KSM-2003TN2E IRRV CONN 14 24 EL 56T 627 14...