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Owner's Manual
21.5" 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...............................................8
2.3 Front Panel Control Knobs..................................16
2.4 How to Connect................................................17
3. Input/Output Specification.......................................18
4. Mechanical Instructions.........................................20
5. Repair Flow Chart .............................................22
6. PCB Layout ......................................................29
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....................................................29
6.2 Power Board..................................................31
6.3 Key Board.....................................................37
6.4 IR Board.......................................................37
7. Adjustment..............................................................38
8. Block Diagram........................................................39
9. Wiring Diagram......................................................40
10. Schematic Diagram........................................41
10.1 Main Board..................................................41
10.2 Power Board.................................................51
10.3 Key Board...................................................55
10.4 IR Board.....................................................56
SAFETY NOTICE
1
Haier HL22XLT2&HL22XLTW2
Horizontal Frequency
31~68 KHz
Page
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Summary of Contents for Haier HL22XLT2
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Page 1: Table Of Contents
21.5″ LCD TV Haier HL22XLT2&HL22XLTW2 Service Service Service Horizontal Frequency 31~68 KHz TABLE OF CONTENTS Description Page Description Page 6.1 Main Board………..…………………...…….…..29 Table of Contents..……........…..1 6.2 Power Board…..…………..………….…..……..31 Important Safety Notice........……..2 6.3 Key Board………………………..……..………..37 Revision List…………………………………………………3 6.4 IR Board…………………………..……….……..37 1. General Specification.........………..4 7. -
Page 2: Revision List
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
PC IN: D-SUB and PC Audio (Headphone mini-jack) Supported scan rate: 640x480@60/72/75Hz, 720x400@70Hz, 800x600@56/60/72/75Hz, 1024x768@60/70/75Hz, 1280x720@60Hz, 1280x768@60Hz. Note: 1280x1024@60Hz, 1440x900@60Hz, 1680x1050@60Hz, 1920x1080@60Hz: For HL22XLT2 / HL22XLTW2 only. Recommended: HL22XLT2 / HL22XLTW2: 1920x1080@60Hz Rear Connectors Component Video and L/R Audio input Supported resolution: 480i@59.94/60Hz, 480p@59.94/60Hz, 720p@59.94/60Hz, 1080i@59.94/60Hz, 1080p@59.94/60Hz HDMI input Supported scan rates: 480i@59.94/60Hz, 480p@59.94/60Hz,... - Page 4 Model No. HL22XLT2 HL22XLTW2 WALL MOUNTING VESA-compatible wall bracket 100 x 100 mm (W x H) Screw type Metric 4 x 10 mm POWER Power Consumption Standby <1W Mains Power 120V 60Hz Audio Power 3W + 3W Ambient Temperature 41°F ~ 95°F...
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Page 5: Operating Instructions
2. Operating Instructions 2.1 The Use of Remote Control... -
Page 7: To Use The Menus
2.2 To Use the Menus... -
Page 15: Front Panel Control Knobs
2.3 Front Panel Control Knobs Press to turn on / off (standby) the TV set. POWER VOL + Press to increase the volume. VOL - Press to decrease the volume. CH ▲ Press to increase the channel number. CH ▼ Press to decrease the channel number. -
Page 16: 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 17: 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 18 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 19: Mechanical Instructions
4. Mechanical Instructions Step1. Remove the STAND ASS’Y and REAR COVER. Step2. Remove the AC COVER, HINGE BKT, MAIN BOARD and POWER BOARD. - Page 20 Step3. Remove the AC BKT, KEY BOARD, IR BOARD and SPEAKERS. Step4. The PANEL.
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Page 21: 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 Replace the power board output=5.2V? Check the IR board and LED Replace the IR board Replace the main board... - Page 22 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 23 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 24 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 25 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 26 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 27 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 28: Pcb Layout
6. PCB Layout 6.1 Main Board 715G3759M02000005K... -
Page 30: Power Board
6.2 Power Board HL22XLT2/HL22XLTW2 715G3895P01L30002H... - Page 33 HL22XLTW2 715G4147P01H21002S...
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Page 36: Key Board
6.3 Key Board 715G4105K01000004L 6.4 IR Board 715G4104R01000004S... -
Page 37: 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 38: 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 39: Wiring Diagram
9. Wiring Diagram Panel To Panel LVDS Cable 12 Pin 32 Pin CN701 CN408 CN905 CN906 ZR39787HGCF Board U401 Scaler IC Power Board CN902 CN001 CN401 6 Pin CN903 10 Pin IR Board Speaker R/L CN201... -
Page 40: Schematic Diagram
10. Schematic Diagram 10.1 Main Board 715G3759M02000005K 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 41 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 42 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 HDMI0_D1N HDMI0_CLKP L501 NC/90OHM HDMI0_D1P TMDSD1- Line-2...
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Page 43: 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 44 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 45 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 46 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 47 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 48 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 49 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 50: Power Board
10.2 Power Board HL22XLT2/HL22XLTW2 715G3895P01L30002H R930 C901 150 OHM 1/4W R901 T901 150 OHM 1/4W POWER X''FMR 2N2 500V Coil R902 L901 150 OHM 1/4W +16V BD901 R903 R904 D901 100K 1/4W 100K 1 /4W FME-220B C902 C903 R906 C907... - Page 51 +16V LED1 LED2 LED3 LED4 LED5 LED6 C934 L904 1U25V C906 100UH 42.9V C941 47UF 35V FB901 270UF 25V D913 BEAD 1N4148-B4006 B360B D907 D903 D904 D905 D906 D914 1N4148-B4006 1N4148-B4006 1N4148-B4006 1N4148-B4006 1N4148-B4006 C936 R979 R980 R981 470NF 25V IC904 Q920 C932...
- Page 52 HL22XLTW2 715G4147P01H21002S R9 01 C901 1 0 0 O HM 1 /4W R9 02 1 0 0 O HM 1 /4W 1N 500V Coil T901 R9 03 L901 POWER X''FMR 1 0 0 O HM 1 /4W +12V BD901 R90 4 R9 05 D901 C9 4 4...
- Page 53 +12V C927 L904 100N 50V C929 100UH IC904 C928 47UF 35V 42.9V RT8482GS 330UF 35V D906 B360B GBIAS GATE FB901 R987 GATE BEAD JUMPER C931 C932 C933 120UF 63V 120UF 63V R927 R928 R929 470NF 25V 20K 1/4W 20K 1/4W 20K 1/4W C934 Q902...
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Page 54: Key Board
10.3 Key Board 715G4105K01000004L 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 SW004 CN001 1.24V ~ 1.45V... -
Page 55: Ir Board
10.4 IR Board 715G4104R01000004S CN201 CONN U201 IRRV VOUT R201 15K 1/10W C201 KSM-603TM2M 56G 627911 100N16V 33G8032 3F HR...