Haier HL22T Service Manual
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Haier HL22T Service Manual

Haier HL22T Service Manual

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Summary of Contents for Haier HL22T

  • Page 1 HL22T...

  • Page 2: Table Of Contents

    WARNING This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products powered b electricity should be serviced or repaired only by experienced professional technicians.
  • Page 3 11.1. Simple check…………………………………………………………..…………...53 11.2. PSU failure check…………………………………………………..………………54 11.3. DC/DC board failure check………………………………………………...……...55 11.4. Main board failure check…………………………………………………………. .55 11.5. Pannel failure ……………..…………………………………………………………57 12. MAINTENANCE……………………………………………………………………………60...

  • Page 4: Specifications

    1. Specification Model HL22T Screen size 21.6inch Aspect ratio 16:10 1680*1050 Resolution Response Time（ms) Angel of view H:170/V:160 Color display 16.7M NO.of preset channels OSD language English/Spanish/French Color system NTSC Audio system Audio output 2×1.5W power(Built-in)(W) Audio output power(outer)(W) ＜＝60W Total power input（W）...
  • Page 5 2. Warning WARNING RISKELECTRIC SHOCK DONOT OPEN WARNING: To reduce the risk of electric shock don’t remove cover or back. No user-serviceable parts inside refer service to qualified service personnel. Safety of operators has been taken into consideration at the design and manufacture phase, but inappropriate operation may cause electric shock or fire.

  • Page 6: Important Safety Instructions

    FC C STATEMENT This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rule. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, use and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
  • Page 7 product unless proper ventilation is provided. 8)Power Source ---this TV should be operated only from the type of power source indicated on the rating label. If you are not sure of the type of power supply to your home, consult your appliance dealer or local power company.

  • Page 8: Location Of Controls And Components

    Thank you for using our Haier product. This easy-to-use manual will guide you in getting the best use of your product. Remember to record the model and serial number. They are on label in back of the unit. Staple your receipt to your manual. You will need it to obtain warranty service.

  • Page 9: Main Board & Av Board

    3.2.1 Function Description: Main Board： Process signal which incept from exterior equipment，then translate into signal that panel can display. 3.2.2 Connector definition Main board connector Power connectors(CN3,CN5) Pin number Signal name Pin number Signal name +12VEXT +12V +12VEXT BLON PWR-ON Notes: CN3-Pin 3: Backlight on/off: The system can turn on or turn off the backlight of TFT LCD Panel through the power supply unit path.
  • Page 10 Power Power for panel Ground RXE0- LVDS EVEN 0 - Signal RXE0+ LVDS EVEN 0 + Signal RXE1- LVDS EVEN 1 - Signal RXE1+ LVDS EVEN 1 + Signal RXE2- LVDS EVEN 2 - Signal RXE2+ LVDS EVEN 2 + Signal 13,14 Ground RXEC-...

  • Page 11: Power Board

    DVD VIDEO Connector: CN6 Pin number Signal name Description GPIO GPIO PB_IN PB1 IN Y_IN Y1_IN PR_IN PR1 IN DVD IR DVD AUDIO Connector: P1 Pin number Signal name Description YPBPR1L_IN YPBPR1R_IN Other connectors: 1, CN19 to Upgrade the program of MTK5380(U13) AND FLASH(U17) +3V3SB 1 U0RX U0TX...

  • Page 12: Lcd Panel

    3.3.1 Function Description: Supply power for Main board, Panel. 3.3.2Connectordefinition INPUT CONNECTOR (CN6) Signal name +12V +12V 3.4. LCD PANNEL.
  • Page 13 3.4.1 Function Description: Display the signal. 3.4.2 Connector definition Pin number Signal name Description Power Power for panel Ground RXE0- LVDS EVEN 0 - Signal RXE0+ LVDS EVEN 0 + Signal RXE1- LVDS EVEN 1 - Signal RXE1+ LVDS EVEN 1 + Signal RXE2- LVDS EVEN 2 - Signal RXE2+...

  • Page 14: Features And Techinical Description

    EVEN 19-24 LVDS LVDS ODD Signal 4. FEATURES AND TECHINICAL DESCRIPTION Factory model(reference only) L22T1W-A HAC model HL22T Tuner Integrated NTSC&ATSC Video Signal System NTSC/ATSC(8VSB,Clear QAM) Digital Comb Filter Video Noise Reduction Stereo Surround Sound MTS Stereo Tone Control Mute...

  • Page 15: Choose Your Connection

    outdoor antenna . location and antenna positioning ■ To improve the picture quality in a poor signal area, please purchase a signal amplifier and install properly. ■ If the antenna needs to be split for two TV`s, install a “2- Way Signal Splitter”...
  • Page 16 2. Insert a video tape into the VCR and press PLAY on the VCR. (Refer to the VCR owner`s manual.) 3. Select the input source with using the INPUT button on the remote control, and then press ▲/▼ button to select the source,press the ►button to confirm.

  • Page 17: Digital Audio Output

    if you do receive Digital signals from a digital set-top box or other digital external device, refer to the figure as shown below. This TV supports HDCP (High-bandwidth Digital Contents Protection) protocol for Digital Contents (480p,720p,1080i). How to connect Use the TV`s (Y, PB, PR) , VGA or HDMI jack for video connections, depending on your set-top box connector.
  • Page 18 3. Then, make the corresponding audio connection. If using a sound card, adjust the PC sound as required. How to use 1. Turn on the PC and the TV. 2. Turn on the display by pressing the POWER button on the TV's remote control. 3.

  • Page 19: Take The Table Stand Off

    Polarized AC Cord Plug Take the table stand off You can take off the table stand if you don’t want to use the table stand. HL22T Please release the screw, See the picture 7. OPERATION INSTRUCTIONS Basal information 7.1 Front panel controls...

  • Page 20: Back Panel Controls

    7.2 Back panel controls...
  • Page 21 7.3 Setting Up Your Remote Control...

  • Page 22: Disassembly Instructions

    8. DISASSEMBLY INSTRUCTIONS 8.1.whole machine The whole machine includes Packaging subassembly、Front-frame subassembly、Back-cover subassembly、Base subassembly、MAINBOARD SUBASSEMBLY、Remote Control Board Subassembly、Control Board Subassembly、Assembly Material Subassembly、Romoter Contral...

  • Page 23: Base Subassembly

    Per-setting Subassembly. 3..3 Components List Name Description Parts number HL22T whole machine Packaging Base subassembly Rear cover subassembly Front Frame Subassembly Control Board Subassembly Remote Control Board Subassembly Mainboard Subassembly 8.2. Base subassembly...

  • Page 24: Back Cover Subassembly

    Spare Location Spare Parts Name Subassembly parts Specification in English number Base subassembly Base pannel Base subassembly Iron patch SJ2824-87 Bolt ST3×10F 8.3. Back cover subassembly Components List Spare Location Spare Parts Name Subassembly parts Specification in English number...
  • Page 25 Rear cover subassembly Rear cover panel bracket Rotate axis Rotate axis board panel orientation bracket support cushion Bolt SJ2825-87 ST3*6F Bolt GB9074.4 M3*8 Bolt SJ2824-87 ST4×12F Rear cover subassembly Terminal board Rear terminal label Bolt SJ2824-87 ST4*12F Bolt SJ2824-87 ST3*8F Bolt SJ2824-87 ST4×16F Bolt...

  • Page 26: Front Frame Subassembly

    Spare Location Spare Parts Name Subassembly parts Specification in English number Front frame subassembly Front frame Arnament show lamp Front FRAME Subassembly Net cloth Key board button bracket Button cap Cloth 603*8*0.3 8.5. Assembly Material Subassembly 8.5.1. Location Photo...

  • Page 27: Components List

    8.5.2 Components List Spare Spare Parts Location Subassembly parts Name in Specification number English Assembly Assembly Material Material Subassembly Subassembly LVDS Wire LVDS Wire Speaker Wire JT4801-J3750Y Connective Wire PH-12P-570mm-PH-7P-450mm-PH-6P Power Cord 2.1 Meter Power Cord Power Mainboard （TJC3-7）-500mm-（TJC3-7） Inverter Connective Wire Power Supply PCA060FB-011-P-R...

  • Page 28: Measurements And Adjustments

    Electric Sponge20*15*30 9. MEASUREMENTS AND ADJUSTMENTS The way to the factory mode menu: 1st, press nemu, 2en, input 8893, Finished these operations ,system will be into the factory mode menu. 9.1 Version ,S/N, Panel Resoution Version:The first line is the model Name and the second line is current software version.
  • Page 29 9.2 Video 9.2.1，Auto Color The option could only be used in the VGA and Component model. When we found the color in the two models was abnormal. Then we can use the function to adjust it automatically. 9.2.2，Color Temperature The function could adjust the Color Temperature., used when debugging. 9.3 Audio...
  • Page 30 Dolby Banner: When turn it “ON”, the model will be in Dolby authentication state. Compression: Compression style. RF： atv line：AV/S-Video/YPbPr/VGA Compression Factor: Compression state. Downmix: output model. MTS System: used when debugging. The parameters only used when debugging, no need to be modified. 9.4 Channel Range Scan: The function could make it to search the channels by differentiation the analog and digital channels.
  • Page 31 Factory Scan: According to ANTENNA-ANALOG---〉ANTENNA-DIGITAL---〉CABLE- ANALOG---〉 CABLE- DIGITAL to search channels, used only in project debugging. Tuner Diagnostic: Project debugging setting, used to inspect the audio function. 9.5Gamma Gamma: Bright：GAMMA0.8 Middle：default settings in the programme Dark：GAMMA1.2...
  • Page 32 9.6 Backlight Backlight: adjust the backlight. 9.7 Function Burning Mode:...
  • Page 33 Turn it “ON” to enter the aging model, This is for factory run-in testing. The screen would display red, green, blue and black screen repeatedly. Each color screen could be exam at that time. Clean Storage：The function could make the model turn back to the factory default setting.

  • Page 34: Circuit Diagram

    Remark: The date of the chart only is a example,please don’t adjust the factory mode base on it. 10. CIRCUIT DIAGRAM...
  • Page 35 MT5380 (DDR1) +3V3SB NEED TO CONFIRM MODEL NAME: MT5380P1-V2 20070620 XINGQI R1701 R1703 75 R0603/SMD R1702 ADIN1 R1704 2K R0603/SMDC628 D161 0.1uF MLVS0603M07 01. INDEX INVR PWR Main PWR R1705 5K6 R0603/SMDC/SMD/0603 C629 1000pF JATG,J2 R1706 18K R0603/SMD C0603/SMD 02. DIGITAL POWER Speaker R1707 5K6 R0603/SMD...
  • Page 36 1,3,4,5,6,7,8,9,10,11,12,13,14 1,3,5,8,9,13,14 +5VSB 1,7,9,11 +5VSB +3V3SB 1,4,7,8,9,13 +3V3SB AZ1117/adj DV10 DV10 DV33 AV33 MEM_VREF L134 MEM_VREF DDRV 6,7 DDRV 0.1uF DV33 4,7,9,14 DV33 4.7uF/10V AV33 3,5,8,9,13 AV33 4.7K +12V 2,3,8,9,14+12V CB33 CB37 100uF/6.3v 0.1uF 0.1uF DDRV DDRV PVIN 100uF/10v VSENSE AVIN MEM_VREF VREF...
  • Page 37 1,2,4,5,6,7,8,9,10,11,12,13,14 1,2,5,8,9,13,14 +5V AV33 2,5,8,9,13 AV33 AV12 5,8,10 AV12 AZ1117/adj +5V_TUNER 5,12 +5V_TUNER AV12 AV25 5,12 AV25 AV25 AZ1117/adj AV33 +12V 1,8,9,14 +12V OPWM2 4,7 OPWM2 CB23 C575 0.1uF CE28 100uF/6.3v C573 CE19 CE30 CB32 470uF/6.3v 100uF/10v 0.1uF CB18 CE22 0.1uF 100uF/10v 1.25 x (1+0/100) = 1.25V...
  • Page 38 1,2,3,5,6,7,8,9,10,11,12,13,14 U13B DV33 2,7,9,14 DV33 OSDA0 +3V3SB OSDA0 1,2,7,8,9,13 +3V3SB OSCL0 GPIO_0 GPIO_3 OSDA1 OSCL0 1 GPIO_3 8 OSDA1 GPIO_0 OSDA1 GPIO_10 OSCL1 8 OSCL1 OSDA1 GPIO_1 1 GPIO_10 OSCL1 GPIO_3 OPWRSB 1 OPWRSB OSCL1 GPIO_3 TP34 GPIO_4 GPIO_11 ADIN3 OPWM0 5 ADIN3 GPIO_4...
  • Page 39 1,2,3,4,6,7,8,9,10,11,12,13,14 AV12 3,8,10 AV12 1,2,3,8,9,13,14 +5V AV33 2,3,8,9,13 AV33 U13D AV12 AV25 3,12 AV25 USB_VRT AVDD12_PLL 5.1K 1% USB_VRT AVDD12_ADCPLL FB19 AVDD12_PLL AVDD12_PLL USB_VRT ADIN3 USB_DM AVDD12_TVDPLL ADIN3 AVDD12_PLL CB450 CVBS0T USB_DP AVDD12_HDMIPLL 12 CVBS0T AVDD33_USB AVDD12_PLL NS/100pF +5V_TUNER AVDD33_USB AVDD12_APLL 3,12 +5V_TUNER AVDD12_PLL...
  • Page 40 1,2,3,4,5,7,8,9,10,11,12,13,14 DDRV DDRV MEM_VREF U13A MEM_VREF DDRV 2,7 DDRV RDQS0 RDQS0 RDQM0 RDQM0 RDQ0 RWE# RDQ0 RWE_ RDQ1 RBA0 MEM_DQ0 MEM_DQ14 Swap for layout RDQ1 RBA0 DQ15 RDQ2 RDQ2 VDDQ VSSQ RDQ3 RBA1 MEM_DQ1 MEM_DQ15 RDQ3 RBA1 DQ14 RDQ4 MEM_DQ2 MEM_DQ13 RDQ4 DQ13...
  • Page 41 1,2,3,4,5,6,8,9,10,11,12,13,14 OIRI OIRI +5VSB U13J 1,2,9,11 +5VSB +3V3SB 1,2,4,8,9,13 +3V3SB U2RX U2RX POCE0# U0RX DV33 POOE# DV33 U2TX POCE0_ U0RX HOLD# SCLK U2TX DV33 DV33 PDD1 POOE# U0TX POCE0# OSDA1 POOE_ U0TX 4,8 OSDA1 PDD0 PDD0 R1208 DV33 OSCL1 PDD0 4,8 OSCL1 HOLD_ PDD1...
  • Page 42 +3V3SB 1,2,3,4,5,6,7,9,10,11,12,13,14 HDMI_PLUGPWR0 AV33 U13K D153 FB35 AVDD33_H 1,2,3,5,9,13,14 +5V RX0_CB TP44 CB138 AV33 RX0_CB EXT_RES 2,3,5,9,13 AV33 RX0_C OPWR0_5V 0.1uF HDMI TYPE-A AV12 OPWR0_5V RX0_C RB520S-30 3,5,10 AV12 RX0_0B OSDA1 CB145 OSDA1 RX0_0B 0.1uF RX0_0 RX0_2 OSCL1 OSCL1 RX0_0 RX0_1B R1605 C0603/SMD...
  • Page 43 1,2,3,4,5,6,7,8,10,11,12,13,14 GND U13C +12V 1,3,8,14 +12V 1,2,3,5,8,13,14 +5V AV33 2,3,5,8,13 AV33 AVDD33_LVDS AVDD33_LVDSA AVDD33_LVDS GPIO_[4..11] AVDD33_LVDSB 4,8,13,14 GPIO_[4..11] AVDD33_LVDS AV33 AVDD33_LVDSC AVDD33_VPLL FB55 AVDD33_VPLL AVDD33_VPLL CK1N CK1N CK1N CK1P CK1P CK1P TP45 CE580 C106 1,2,3,4,5,6,7,8,10,11,12,13,14 GND TP46 100uF/6.3v CB192 0.1uF LVDSVDD LVDSVDD +5VSB...
  • Page 44 1,2,3,4,5,6,7,8,9,11,12,13,14 GND 1,2,3,5,8,9,13,14 +5V AV12 AV12 3,5,8 AV12 HSYNC U13E HSYNC FB40 AVDD12_RGBADC VSYNC VSYNC SOY0 DVDD12_VGA AV12 SOY0 DVDD12_VGA AVSS12_RGBADC C119 AVSS12_RGBADC AVDD12_RGBADC FB41 DVDD12_VGA AVDD12_RGBADC PB0P AVSS12_RGBFE CB158 PB0P AVSS12_RGBFE AVDD12_RGBFE 0.1uF PBR0N PBR0N AVDD12_RGBFE C0603/SMD PR0P AVSS12_RGBADC C116 PR0P SOY1...
  • Page 45 1,2,3,4,5,6,7,8,9,10,12,13,14 +5VSB NEARLY IC 1,2,7,9 +5VSB +5VSB D-SUB15 FEMALE SVGA R161 4.7nF C131 NEARLY VGA CON. RED_GND U0TX R24 0 80/100MHz FB67 R163 10nF C132 GRN_GND 1N4148 VGASDA_IN VSYNC VSYNC BLU_GND HSYNC HSYNC HSYNC# AIN2_L R165 C134 AIN2_L 1N4148 VGA_PLUGPWR NS/EZJZ0V800AA AIN2_R AIN2_R...
  • Page 46 1,2,3,4,5,6,7,8,9,10,11,13,14 AV25 3,5 AV25 AIN0_L U13F AIN0_L AIN0_R AIN0_R CVBS0T CVBS0T FAT_IN2+ CVBS0 DVDD25_VADC C112 NS/24pF C214 NS/43pF FAT_IN2+ CVBS0 DVDD25_VADC CVBS1 DVSS25_VADC FAT_IN2- Near chip CVBS1 FAT_IN2- DVSS25_VADC TP51 GND_TUNER C566 +5V_TUNER 3,5 +5V_TUNER GND_TUNER TP52 GND_CVBS FAT_IN2+ 10nF VIP_ATV GD_CVBS GND_SV...
  • Page 47 1,2,3,4,5,6,7,8,9,10,11,12,14 AV33 AV33 U13G FB50 AVDD33_AADC FB51 AVDD33_ADAC0 +12V 1,3,8,9,14 +12V AIN0_L ASPDIF AV33 2,3,5,8,9 AV33 AIN0_L ASPDIF AIN0_R 1,2,3,5,8,9,14 +5V AIN0_R AOMCLK AIN1_L AOLRCK CE55 C201 C202 AIN0_L AIN1_L AOLRCK AIN0_L AIN1_R AOBCK CB170 CB171 AIN0_R AIN0_R AIN1_R AOBCK AIN2_L 100uF/6.3v 0.1uF...
  • Page 48 R1713 33K/NC C631 120pF/NC 3.3X GAIN C665 R1714 R1715 5.1K/NC U53A CE624 10 uF/10v/NC R1716 20/NC AL2_OUT C0805/SMD OPAVREF 10K/NC R1717 C632 22uF/10v/NC R1719 10K/NC AR2_OUT AOUTR 820pF/NC NJM4558/NC R1718 MUTE 2SD2653K/NC NS/10K OPAV120 NS/10K 1,2,3,4,5,6,7,8,9,10,11,12,13 GND R1720 33K/NC AL2_OUT DV33 AOUTL 2,4,7,9 DV33...

  • Page 49: Wiring Connection Diagram

    11. WIRING CONNECTION DIAGRAM...

  • Page 50: Troubleshooting Guide

    12. TROUBLE SHOOTING GUIDE 12.1. Simple check Verify if the television is properly plugged No Picture,no sound Verify if the television is properly supplied power Verify if electricity is available Verify if correct signals are input Press INPUT button to change signal input to TV input Blank screen Restart the television of power supply is interrupted Press Mute button and verify if Mute mode is set.

  • Page 51: Main Board Failure Check

    voltage : +12V ,+12V connector:CN6（P6,P7） 12.3 Main board failure check State:No picture First,check cables which connect with PSB and the Lvds wire with the panel. Second, check the output voltage of CN4 Connector: CN4. State：No sound First，check cables which connect with Main Board，then check as follows First,check speaker anode(+) and cathode(-),confirm speaker short or not.
  • Page 52 Bright dot dark Incoming Inspection Standard Dot Defect dot in pannel Panel or Polarizer Bladder Polarlzer Bladder between Polarizer and top glass Bubble Polarizer Polarizer Tine or rigidity arose Polarizer Scratch Scratch inside Eyewinker inside Eyewinker inside Polarizer Polarizer Polarizer Abnormal 1.Chip lose action Abnormal Display...
  • Page 53 Abnormal Only color Capacitance improper bring crosstalk inside LCD Color abormal pannel 1.Chip lose action Only color Abnormal 2. IC short or jointion bad abnormal Color 3.Pannel and vsc connect bad Failure Mode Part Name Description Phenomena Failure cause When turn Caused by Mechanica noise of backlight Mechanlcal...

  • Page 54: Cleaning The Screen

    Brightness Light bottom of LCM B/L unit badness leakage brighter than normal Mechanlcal B/L brightness Sheet in B/L unit is uneven Uniformity or B/L asymmetric *Lack screw Lack screw or Mount hole Screw damage screw damage 13、 MAINTENANCE To remove dirt or dust, wipe the cabinet with a soft, dry, lint-free cloth. Please be sure not to use a wet cloth.
  • Page 55 Sincere Forever...

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