Table of Contents
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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
TABLE OF CONTENTS
Page
Description
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
Haier HL24XD2
Horizontal Frequency
31~68 KHz
Page
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Summary of Contents for Haier HL24XD2
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Page 1: Table Of Contents
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 6.4 IR Board…………………………..……….……..29 1. General Specification.........………..4 7. -
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 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 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 176.8 mm 239.6 mm 280.50 mm Dimensions 457.3 mm...
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Page 6: Operating Instructions
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. 2. Press to turn on TV after the power on Source status, LED had changed to blue and Press repeatedly to choose the various... -
Page 7: To Use The Menus
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. Press the Menu button to enter the main OSD. Adjust the items including Video menu,Audio menu, Feature menu, Channel menu, and VGA menu. - Page 8 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 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 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. Digital Captions Setup: Provide numerous options for setting the digital closed caption style in the sub-menu. [Style] –...
- Page 11 • 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.) •• Exit: Exit JPEG Viewer and return to original source. (Browser with Control menu.) [MP3 MusicBox] ••...
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Page 12: Front Panel Control Knobs
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 ▼ CH ▼: Press to select the next lower Programme number. -
Page 13: How To Connect
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
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 Green Ground Serial Clock for DDC Blue Ground HDMI... - Page 15 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 37.861 72.809 31.500 640x480@75Hz 840 x 500...
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Page 16: Mechanical Instructions
4. Mechanical Instructions Step1. Remove the STAND ASS’Y. Step2. Remove the REAR COVER. - Page 17 Step 3. Disconnect the WIRE HARNESS. Step 4. Remove the MAIN BOARD and POWER BOARD and separate the PANEL and BEZEL.
- Page 18 Step 5. Separate the MAIN FRAME and PANEL. Step 6. Remove the KEY BOARD, IR BOARD and SPEAKERS.
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Page 19: 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 20 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 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 LVDS cable Replace main board...
- Page 22 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? Replace the cable...
- Page 23 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. OSD is unstable or can’t work normally Remote Control malfunction Check the remote control battery is Replace the battery...
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Page 24: Pcb Layout
6. PCB Layout 6.1 Main Board 715G3759M0F000005K... -
Page 26: Power Board
6.2 Power Board 715G3754P01W30003H... -
Page 29: Key Board
6.3 Key Board 715G3303 1 6.4 IR Board 715G3963R01000004S... -
Page 30: Adjustment
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. Take the following picture for example: Step2: Change TV, press the “Current Source”... -
Page 31: Block Diagram
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 DDRII * 2 P12V Q403 AO4449 PANEL LVDS Pow e r... -
Page 32: Wiring Diagram
9. Wiring Diagram Panel To Panel LVDS Cable 13 Pin 12 Pin 32 Pin CN902 CN701 CN408 2 Pin CN804 2 Pin ZR39787HGCF Board CN805 U401 Scaler IC Power Board 2 Pin CN802 2 Pin CN01 CN803 CN401 4 Pin 10 Pin IR Board Speaker R/L... -
Page 33: Schematic Diagram
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 SIF_P C105 10N 50V 0402 SIF_AINP 100N16V 1UF16V 0402 2N2 50V RF-AGC Monitor R101 R102 L101 IF_AINN... - Page 34 04) AV/YPbPr Inputs U401F CN121 Place parts very close to U401 JACK Video In I/F CVBS AV_CVBS FB105 30 OHM AV & AV_S_Y C165 220N 10V 0402 SVIDEO0Y AV_S_C 0402 C166 220N 10V SVIDEO0C R130 S-Video ZD103 DVD_S_Y FB111 NC/30 OHM C169 NC/220N 10V 0402...
- Page 35 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 NC/BAT54C HDMI0_D2P U502 TMDSD0- HDMI0_D2P HDMI0_D2N BAT54C HDMI0_D2N HDMI0_D1P HDMI0_CLKN HDMI0_CLKN TMDSD1+ Line-1 HDMI0_D1N HDMI0_CLKP HDMI0_D1P L501 NC/90OHM TMDSD1- Line-2...
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Page 36: Usb Port
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 4.7K 1/10W 1K 1/10W I2C2_SCL TRSTN R408... - Page 37 07) GPIO Block D3V3 TVMicro Bootstrap 3V3_STB Bootstrap Configuration U401K Configuration 3V3_STB R456 R460 GPIO 3V3_STB BOOT_STRAP0 BOOT_STRAP0 4.7K 1/10W 4.7K 1/10W GPIO_P0 DEMOD_RSTN 3 BOOT_STRAP1 BOOT_STRAP1 GPIO_P1 BOOT_STRAP2 BOOT_STRAP2 TEST_MODE BOOT_STRAP2 BOOT_STRAP3 R458 R461 4.7K 1/10W GPIO_P2 BOOT_STRAP3 BOOT_STRAP3 GPIO_P3 BOOT_STRAP1 NC/10K 1/10W...
- Page 38 08) DDRII SDRAM I/F S0_DQ[0:15] D1V8 D1V8 S0_VREF Bottom Trace (mil) Trace (mil) U401A 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 S0_A12 S0_A0 S0_DQ0 S0_VREF S0_A2 1250 S0_DQ2...
- Page 39 09) LVDS I/F PANEL_POWER FB423 U401J U401R U401N 73G253S505 300 OHM D3V3 LVDS I/F D3V3 Power D3V3 Ground LVDS_CKE_P VCC1V1 C4D9 C4E3 C4E4 R495 PANEL_PW AF24 L402 NC/90OHM LVDS_CE_P GND48 GND49 LVDS_CKE_N AE24 100N25V 22uF/50V 1K 1/4W LVDS_CE_N CORE_VDD0 IO_VDD0 GND47 GND50 LVDS_CKO_P...
- Page 40 10) Audio Inputs/Earphone Output U401E Audio IN CN102 AV_Audio_L C601 2.2uF 10V AV_Audio_L LINE_IN1_L FB601 300 OHM R601 10K 1/10W PC_Audio_R AV_Audio_R 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 R602 10K 1/10W PC_Audio_L DVD_Audio_R C604...
- Page 41 11) Audio Amplifier D3V3 +5VSB AMPP POP NOISE D604 RB160M-60TE25 D3V3 D3V3 R629 R628 C649 NC/10K OHM 1/10W 10K 1/10W 47uF/35V D602 +5VSB AMPP VCC5D PD_MUTE R624 R625 R630 NC/10K OHM 1/10W R639 PD_MUTE NC/10K OHM 1/10W LL4148 10K 1/10W R626 R633 C638...
- Page 42 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 PS_ON R701 NC/100 OHM 1/10W 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 300 OHM 2.2uH Power FB701...
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Page 43: Power Board
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 R907 ZD904 R929 C905 100K 1/4W 100K 1/4W... - Page 44 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 L802 BAW56...
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Page 45: Key Board
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 PWR-SW FUNC_KEY TACT SW FWRD H1.5MM CONN 1K 1/10W 1% 33T8032 4F HR... -
Page 46: Ir Board
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...