Haier HL24XD2 Service Manual
Haier HL24XD2 Service Manual

Haier HL24XD2 Service Manual

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23.6" LCD TV
Service
Service
Service
Description
Table of Contents............................................................1
Important Safety Notice...................................................2
Revision List.........................................................3
1. General Specification..................................................4
2. Operating Instructions............................................6
2.1 The Use of Remote Control...................................6
2.2 To Use the Menus...............................................7
2.3 Front Panel Control Knobs..................................12
2.4 How to Connect................................................13
3. Input/Output Specification.......................................14
4. Mechanical Instructions.........................................16
5. Repair Flow Chart ..............................................19
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
All manuals and user guides at all-guides.com

TABLE OF CONTENTS

Page
6.1 Main Board..................................................24
6.2 Power Board..................................................26
6.3 Key Board.....................................................29
6.4 IR Board.......................................................29
7. Adjustment..............................................................30
8. Block Diagram........................................................31
9. Wiring Diagram......................................................32
10. Schematic Diagram........................................33
10.1 Main Board..................................................33
10.2 Power Board.................................................43
10.3 Key Board...................................................45
10.4 IR Board.....................................................46
11. Exploded View...............................................47
SAFETY NOTICE
1
Description
Haier HL24XD2
Horizontal Frequency
31~68 KHz
Page

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Summary of Contents for Haier HL24XD2

  • Page 1: Table Of Contents

    All manuals and user guides at all-guides.com 23.6″ LCD TV Haier HL24XD2 Service Service Service Horizontal Frequency 31~68 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………………………..……..………..29 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 Apr.30,2010 Initial release E24AMZNK3WH3NN...
  • 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 1360x768@60Hz:For HL19D2 / HL32D2 only. 1280x1024@60Hz,1440x900@60Hz,1680x1050@60Hz 1920x1080@60Hz: For HL24XD2 / HL42XD2 only. Rear Connectors Recommended: For HL19D2 / HL32D2: 1360x768 For HL24XD2 / HL42XD2: 1920x1080 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. HL19D2 HL24XD2 HL32D2 HL42XD2 WEIGHT & DIMENSIOIN Dimensions 457.3 mm 572.2 mm 790.5 mm 1015.36 mm with Stand 324.8 mm 407.6 mm 569.1 mm 703.03 mm (W x H x D) 171.29 mm...
  • Page 6: Operating Instructions

    All manuals and user guides at all-guides.com 2. Operating Instructions 2.1 The Use of Remote Control Power Press to power ON/OFF(standby) TV. Press "Fav" to open or toggle channel (Note: 1. TV is never completely power item in Favorite Channel List. off unless physically unplugged.
  • Page 7: To Use The Menus

    All manuals and user guides at all-guides.com 2.2 To Use the Menus 1. Press the Menu 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 8 All manuals and user guides at all-guides.com AUDIO MENU The Audio menu in TV mode shows as below. It provides audio adjustment for user to modify the audio setting. Audio language setting is only available with ATSC TV source, the option is disable under other source modes. Sound Mode: Choose the audio mode: Personal, Music, or Speech.
  • Page 9 All manuals and user guides at all-guides.com 3. Transparency: Adjust the transparency of the on-screen menu from range 0 to 10. 4. Password Setting: Change the 4-numeral parental control password. Three steps are required for changing the password: Enter Old Password -> Enter New Password ->Confirm New Password. Note: This item is only available in TV, Composite and S-Video source modes.
  • Page 10 All manuals and user guides at all-guides.com 6. Closed Captions: Select a closed caption options. (Off / On / With Mute) 7. Analog Captions: Select an analog caption options. (CC 1-4 / TEXT 1-4) 8. Digital Captions: Select a digital caption options. (SERVICE 1-6) 9.
  • Page 11 All manuals and user guides at all-guides.com • Rotate Photo: Rotate selected picture. (0/90/180/270) •• Back to Upper Folder: Return to the upper folder. •• Back to Root Folder: Return to root folder. •• Back To Browser: Return to Browser mode. (Photo page with control menu.) ••...
  • Page 12: Front Panel Control Knobs

    All manuals and user guides at all-guides.com 2.3 Front Panel Control Knobs VOL + VOL +: Press to increase the sound volume level. VOL - VOL -: Press to decrease the sound volume level. CH ▲ CH ▲: Press to select the next higher Programme number. CH ▼...
  • Page 13: How To Connect

    All manuals and user guides at all-guides.com 2.4 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. 2. PC IN – Connect the video and audio cables from a computer here. 3.
  • Page 14: 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.
  • Page 15 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 16: Mechanical Instructions

    All manuals and user guides at all-guides.com 4. Mechanical Instructions Step1. Remove the STAND ASS’Y. Step2. Remove the REAR COVER.
  • Page 17 All manuals and user guides at all-guides.com Step 3. Disconnect the WIRE HARNESS. Step 4. Remove the MAIN BOARD and POWER BOARD and separate the PANEL and BEZEL.
  • Page 18 All manuals and user guides at all-guides.com Step 5. Separate the MAIN FRAME and PANEL. Step 6. Remove the KEY BOARD, IR BOARD and SPEAKERS.
  • Page 19: 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 20 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=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 21 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 22 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 23 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 24: Pcb Layout

    All manuals and user guides at all-guides.com 6. PCB Layout 6.1 Main Board 715G3759M0F000005K...
  • Page 25 All manuals and user guides at all-guides.com...
  • Page 26: Power Board

    All manuals and user guides at all-guides.com 6.2 Power Board 715G3754P01W30003H...
  • Page 27 All manuals and user guides at all-guides.com...
  • Page 28 All manuals and user guides at all-guides.com...
  • Page 29: Key Board

    All manuals and user guides at all-guides.com 6.3 Key Board 715G3303 1 6.4 IR Board 715G3963R01000004S...
  • Page 30: 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 31: Block Diagram

    All manuals and user guides at all-guides.com 8. Block Diagram Main Board Power System System Block Diagram P24V/16V PANEL Inve rte r TDA7491P13TR P24V/16V For Audio Am plifie r Tuner LVDS LCD PANEL ENV56U03D8F U706 G5655P12U U708 G9084-50TU3U TU101 ENV56U03D8F For TUNER+5V VIDEO CVBS...
  • Page 32: Wiring Diagram

    All manuals and user guides at all-guides.com 9. Wiring Diagram Panel To Panel LVDS Cable 13 Pin 12 Pin 32 Pin CN902 CN701 CN408 2 Pin CN804 2 Pin ZR39787HGCF CN805 U401 Board Scaler IC Power Board 2 Pin CN802 2 Pin CN01 CN803...
  • Page 33: Schematic Diagram

    All manuals and user guides at all-guides.com 10. Schematic Diagram 10.1 Main Board 715G3759M0F000005K 03) Tuner/VGA Inputs U401P TU101 ENV56U03D8F TUNER Demodulator ET-29DHRV D3V3 C101 C103 C104 C102 10N 50V 0402 SIF_N SIF_AINN C105 10N 50V 0402 SIF_P SIF_AINP 100N16V 1UF16V 0402 2N2 50V...
  • Page 34 All manuals and user guides at all-guides.com 04) AV/YPbPr Inputs U401F CN121 Place parts very close to U401 JACK Video In I/F CVBS FB105 30 OHM AV_CVBS AV_S_Y 0402 AV & C165 220N 10V SVIDEO0Y AV_S_C C166 220N 10V 0402 SVIDEO0C R130 S-Video...
  • Page 35 All manuals and user guides at all-guides.com 05) HDMI Inputs Run As 100 Ohm Differential Pairs 3V3_STB +5VSB CN501 HDMI U401G ZD501 HDMI0 I/F HDMI0_D0P ZD502 VCC5D 3V3_STB TMDSD0+ HDMI0_D0N HDMI0_D2P U502 NC/BAT54C TMDSD0- HDMI0_D2P HDMI0_D2N BAT54C HDMI0_D2N HDMI0_D1P HDMI0_CLKN HDMI0_CLKN TMDSD1+ Line-1...
  • Page 36 All manuals and user guides at all-guides.com 06) SIO I/F D3V3 D3V3 EJTAG I/F System MCU RESET For uMCU Debug U401C R401 R402 R403 R404 R405 R406 R407 3V3_STB CN410 SIO I/F 4.7K 1/10W 4.7K 1/10W 1K 1/10W 1K 1/10W NC/4.7K 1/10W CN406 I2C2_SCL...
  • Page 37 All manuals and user guides at all-guides.com 07) GPIO Block D3V3 TVMicro Bootstrap 3V3_STB Bootstrap Configuration U401K Configuration 3V3_STB GPIO R456 R460 3V3_STB BOOT_STRAP0 BOOT_STRAP0 4.7K 1/10W 4.7K 1/10W DEMOD_RSTN 3 GPIO_P0 BOOT_STRAP1 BOOT_STRAP1 GPIO_P1 BOOT_STRAP2 BOOT_STRAP2 TEST_MODE R458 BOOT_STRAP2 BOOT_STRAP3 R461 4.7K 1/10W...
  • Page 38 All manuals and user guides at all-guides.com 08) DDRII SDRAM I/F S0_DQ[0:15] D1V8 D1V8 S0_VREF U401A Bottom Trace (mil) Trace (mil) C442 R484 S0_A0 1250 S0_DQ0 S0_A[0:12] S0 Memory I/F 100N16V 100R 1/10W 1% S0_A1 1250 S0_DQ1 S0_DQ15 S0_A13 0402 S0_DQ15 S0_A13 S0_DQ14...
  • Page 39 All manuals and user guides at all-guides.com 09) LVDS I/F PANEL_POWER FB423 U401J U401R U401N 73G253S505 300 OHM D3V3 LVDS I/F D3V3 Power D3V3 Ground LVDS_CKE_P C4D9 C4E3 C4E4 R495 VCC1V1 AF24 L402 NC/90OHM PANEL_PW LVDS_CE_P GND48 GND49 LVDS_CKE_N AE24 100N25V 22uF/50V 1K 1/4W...
  • Page 40 All manuals and user guides at all-guides.com 10) Audio Inputs/Earphone Output U401E Audio IN CN102 AV_Audio_L C601 2.2uF 10V AV_Audio_L LINE_IN1_L PC_Audio_R AV_Audio_R FB601 300 OHM R601 10K 1/10W C602 2.2uF 10V AV_Audio_R LINE_IN1_R DVD_Audio_L C603 NC/2.2uF 10V Audio DVD_Audio_L LINE_IN2_L FB602 300 OHM...
  • Page 41 All manuals and user guides at all-guides.com 11) Audio Amplifier D3V3 +5VSB AMPP POP NOISE D604 D3V3 D3V3 R629 RB160M-60TE25 R628 C649 NC/10K OHM 1/10W 10K 1/10W 47uF/35V D602 +5VSB AMPP VCC5D R624 R625 R630 NC/10K OHM 1/10W PD_MUTE R639 PD_MUTE NC/10K OHM 1/10W LL4148...
  • Page 42 All manuals and user guides at all-guides.com 12) Power D24V P12V Standby Power 3,5,9,11 +5VSB 3,5,6,10,11 VCC5D +5VSB U701 73G253S 38 3V3_STB 3V3_STB U702 1V8_STB R701 NC/100 OHM 1/10W PS_ON FB702 R703 0R05 1/10W G5622ADJT11U AZ1084D-1.8TRE1 From L701 R702 100 OHM 1/10W BL_ON_OFF 7 3,5,6,7,9 3V3_STB...
  • Page 43: Power Board

    All manuals and user guides at all-guides.com 10.2 Power Board 715G3754P01W30003H R920 Vbus 100 OHM 1/4W MOF 270 OHM 3W 5% FB905 R921 C921 L902 100 OHM 1/4W 1000PF500V R923 R928 MOF 270 OHM 3W 5% R922 +16V 100 OHM 1/4W BEAD 3.5uH R905...
  • Page 44 All manuals and user guides at all-guides.com CN804 BAW56 C825 3pF 6KV CONN INVERTER X'FMR 118uH 10% YS04170422 T801 R822 MOS_1 1K 1/8W D804 +16V C801 C802 CN805 220uF 35V 100N 50V C826 CONN R818 3pF 6KV C803 1000PF 50V NPO 120 +-5% 33ohm 1/4W +/-5% R823 1K 1/8W...
  • Page 45: Key Board

    All manuals and user guides at all-guides.com 10.3 Key Board 715G3303 1 SW01 VOL+ TACT SW FWRD H1.5MM 7K5 1/10W 1% SW02 VOL- TACT SW FWRD H1.5MM 2K7 1/10W 1% SW03 3V3_STB TACT SW FWRD H1.5MM 1.8K OHM 1% 1/10W CN01 1uF/16V SW04...
  • Page 46: Ir Board

    All manuals and user guides at all-guides.com 10.4 IR Board 715G3963R01000004S LED201 BLUE 3V3_STB 14 24 EL LED_R LED_B CN201 U201 IRRV CONN VOUT R201 15K OHM 1/10W C201 KSM-603TM2M 56G 627911 0.1uF 10V 0402 33G8032 5F HR GNDPIN...

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