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9-3. Mainboard Failure Check

Symptom: No Sound

No Sound

(All Mode)

Check the input

Source

Change Source input

Check the

input/output

Re-soldering or change

IC U13

Check the

input/output

Re-soldering or change

IC U55

Check the

input/output

Re-soldering or change

IC U2

Check the

Speaker

Change the Speaker

Check the

Sperker wire

Fail

Pass

Fail

Fail

Fail

Fail

Pass

Pass

Pass

Pass

49

Service Manual

Model No.: HL22F2a

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Содержание HL22F2

Страница 1: ... Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death Haier Group 2010 Qingdao Haier Electronics Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law SERVICE MA...

Страница 2: ...n this manual 6 1 4 How to Read this Service Manual 6 1 4 1 Using icons 6 KDSWHU 6SHFL FDWLRn 6SHFL FDWLRQ OLVW 8 2 2 External pictures four faces 9 Chapter 3 Disassemble and Assemble 11 11 11 12 12 12 Chapter 4 Location of Controls and Components 4 1 Board Location 13 4 2 Main Board 13 4 2 1 Function Description 14 RQQHFWRU GH QLWLRQ 14 3 1 Remove the Pedestal 3 2 Remove the Front Cover 3 3 Remov...

Страница 3: ...25 7 3 Circuit Diagram 27 7 2 Wiring Connection Diagram Chapter 8 Measurements and Adjustments 8 1 Service Mode 40 8 1 1 How to enter into Service Mode 40 8 1 2 How to exit 40 8 2 Measurements and Adjustments 40 8 2 1 Version S N Panel Resoution 40 8 2 2 Video 41 8 2 3 Audio 42 8 2 4 Channel 42 8 2 5 Gamma 44 8 2 6 Backlight 44 8 2 7 Function 45 Chapter 9 Trouble shooting 9 1 Simple check 47 9 2 P...

Страница 4: ...tant thing is to list up the potential hazard or risk for the service personnel to open the units and disassemble the units For example we need to describe properly how to avoid the possibility to get electrical shock from the live power supply or charged electrical parts even the power is off This symbol indicates that high voltage is present inside It is dangerous to make any king of contact wit...

Страница 5: ...nder test IWHU UHPRYLQJ DQ HOHFWULFDO DVVHPEO HTXLSSHG ZLWK 6 GHYLFHV SODFH WKH DVVHPEO RQ D conductive surface such as aluminum foil to prevent electrostatic charge buildup or exposure of the assembly 1 3 4 About lead free solder PbF This product is manufactured using lead free solder as a part of a movement within the consumer products industry at large to be environmentally responsible Lead fre...

Страница 6: ...lcohol 90 99 strength CAUTION 7KLV LV D ÀDPPDEOH PL WXUH 8QOHVV VSHFL HG RWKHUZLVH LQ WKLV VHUYLFH PDQXDO OXEULFDWLRQ RI FRQWDFWV LV QRW UHTXLUHG Capacitors may result in an explosion hazard 5 Do not defeat any plug socket B voltage interlocks with which receivers covered by this VHUYLFH PDQXDO PLJKW EH HTXLSSHG 6 Do not apply AC power to this instrument and or any of its electrical assemblies unl...

Страница 7: ...Minimize bodily motions when handling unpackaged replacement ES devices Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot IURP D FDUSHWHG ÀRRU FDQ JHQHUDWH VWDWLF HOHFWULFLW VXI FLHQW WR GDPDJH DQ 6 GHYLFH 1 3 7 Ordering Spare Parts Please include the following informations when you order parts Particularly the Version letter 1 Model number ...

Страница 8: ...SXODWLRQ PD GDPDJH HTXLSPHQW ORRVH GDWD JHW DQ XQH SHFWHG UHVXOW RU KDV WR restart part of a procedure Warning A warning is used when there is danger of personal injury Reference A reference guides the reader to other places in this binder or in this manual where KH VKH ZLOO QG DGGLWLRQDO LQIRUPDWLRQ RQ D VSHFL F WRSLF ...

Страница 9: ...600x216x485 HL22F2a 21 6 inch 16 9 1366x768 5 GRAY TO GRAY H 170 V 60 16777216 181 English French Spanish NTSC M BG I L L 3W 2 No 50W AC100V 240V 60Hz 120Min 21 6 inch 16 9 1366x768 5 GRAY TO GRAY H 170 V 60 16777216 181 English French Spanish NTSC M BG I L L 3W 2 No 50W AC100V 240V 60Hz 120Min 4 4 7 600x216x485 600x216x485 21 6 inch 16 9 1366x768 5 GRAY TO GRAY H 170 V 60 16777216 181 English Fre...

Страница 10: ...Service Manual Model No HL22F2a 9 2 2 External pictures four faces Front Side Left Side ...

Страница 11: ...Service Manual Model No HL22F2a 10 TOP Side Back Side ...

Страница 12: ...Service Manual Service Manual Model No HL22F2a ...

Страница 13: ...Service Manual Model No HL22F2a ...

Страница 14: ...ion of Controls and Components 4 1 Board Location No Parts number Description A Board DC14C0E0D00M Main Board 0090724734 B Board 094001244B Power Board 4 2 Main Board Service Manual Model No HL22F2a 13 A Board B Board ...

Страница 15: ...n on or turn off the backlight of TFT LCD Panel through the power supply unit path System board will use this pin to control system power CN1 Pin 4 Control the luminance of backlight The system can generate the PWN signal to control the strength of TFT LCD Panel s backlight through this connector CN1 Pin number Signal name Pin number Signal name 1 IR 6 12 2 5VSB 3 LED_G 4 GND 5 LED_R Keypad and re...

Страница 16: ...VDS EVEN 2 Signal 12 LVDS_D2E_P LVDS EVEN 2 Signal 13 GND Ground 14 LVDS_CE_N LVDS EVEN Clock Signal 15 LVDS_CE_P LVDS EVEN Clock Signal 16 GND Ground 17 LVDS_D3E_N LVDS EVEN 3 Signal 18 LVDS_D3E_P LVDS EVEN 3 Signal 19 GND Ground 20 NC NC 21 NC NC 22 NC NC 23 GND Ground 24 GND Ground 25 GND Ground 26 Panel_power Power for panel 27 Panel_power Power for panel 28 Panel_power Power for panel 29 Pane...

Страница 17: ... GH QLWLRQ INPUT CONNECTOR CN10 Service Manual Model No HL22F2a 16 Power supply and Inverter Connector CN10 Pin number Signal name Description 1 1 Ground 1 Ground 867 19 57 5 LJKWQHVV GMXVW 21 2 19 57 5 6ZLWFK RQWURO 9 9 Power 9 9 Power Other Connector Power supply for panel CNC2 4 4 LCD Panel ...

Страница 18: ... RXIN2 Negative LVDS differential data input 2 12 RXIN2 Positive LVDS differential data input 2 13 GND Power Ground 14 RXCLKIN Negative LVDS differential clock input clock 15 RXCLKIN Positive LVDS differential data input clock 16 GND Power Ground 17 RXIN3 Negative LVDS differential data input 3 18 RXIN3 Positive LVDS differential data input 3 19 GND Power Ground 20 NC No contact For AUO internal u...

Страница 19: ...l Wire 75 ohm Single family Dwellings Houses Connect to wall jack for outdoor antenna Outdoor Antenna 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 in the connections To install the antenna properly please contact a professional in your area Note All cables s...

Страница 20: ...nding external equipment B Refer to external equipment operating guide Component Setup How to connect Connect the DVD video outputs COMPONENT to A the Y Pb Pr jacks on the TV and connect the DVD audio outputs to the YPbPr Audio IN jacks on the TV as shown in the figure If your DVD only has an S VIDEO output jack connect B this to the S VIDEO input on the TV as shown in the figure Note If your DVD ...

Страница 21: ...ovider you can watch cable TV programming The TV cannot display TV programming unless a TV tuner device or cable TV converter box is connected to the TV For further information regarding cable TV service contact your local cable TV service provider s Connection Option 1 Select 3 or 4 with channel switch on cable box A Tune the TV channel to the same selected output B channel on cable box Select ch...

Страница 22: ... product 2 A separated audio connection is necessary 3 If the source device has an analog audio output connector connect the source device audio output to DVI Audio In port located on the left side of HDMI port How To Use If the source device supports Auto DVI function the output resolution of the source device will be automatically set to 1280x720p If the source device does not support Auto DVI y...

Страница 23: ...eadphone out S VIDEO Power source TO USE AC POWER SOURCE Use the AC polarized line cord provided for operation on AC Insert the AC cord plug into a standard polarized AC outlet NOTES Ƶ Never connect the AC line cord plug to other than the specified voltage Use the attached power cord only Ƶ If the polarized AC cord does not fit into a non polarized AC outlet do not attempt to file or cut the blade...

Страница 24: ...nt to watch In the MENU screen the INPUT button serves as the ENTER button 3 MENU Menu display Press to access the on screen menu display 4 VOL Presstoadjustthevolume IntheMENUscreen thesebuttonsserveasleft rightbuttons 5 CH Connect a USB flash drive to view JPEG images or listen to MP3 songs 6 Power indicator 7 Remote Sensor Receivers IR signals from the remote control Do not put anything near th...

Страница 25: ... For example to enter 54 3 QSFTT i w it w BOE i w J MUTE Switches the sound on or off K ENTER Accesses the highlighted item in the on screen menu L RECALL Press to jump back and forth between two channels M USB REPEAT N USB STOP O USB Next Chapter P USB Previous Chapter Q CH LIST Open the channel list inTV R FAVORITE Open the favourite channel list inTV For TV without DVD PICTURE CCD INPUT ARC MEN...

Страница 26: ...r 7 Electrical Parts 7 1 Block Diagram 25 HDMI1 VGA YPbPr tuner Composite MT5305 Main IC YPbPr Composite L R VGA P11 L R DDR Flash TDA1517 P A N E L USB LVDS EEPROM I2C Bus Service Manual Model No HL22F2a DDR ...

Страница 27: ... VSHFLDO QXPEHU DLHU W SH FXVWRPHU W SH Am eric a Haier 0DLQERDUG VXEDVVHPEO 3DQHO 3RZHU VXSSO ERDUG 9 6 ZLUH 6SHDNHU ZLUH 6SHDNHU 3RZHU FRUG H SDG VVHPEO 5HPRWH RQWURO RDUG VVHPEO RPELQDWLRQ ZLUH 3RZHU VXSSO DQG LQYHWHU CN3 CN1 CN 5HPRWH RDUG 6XEDVVHPEO Key RDUG 6XEDVVHPEO CN2 CN LA22F 3 W HL22F 2 32 DC14C0E0D00M DC14C0E0D00 AT08SR1202US49 0090724734 Model No HL22F2a ...

Страница 28: ...Service Manual Model No HL22F2a 7 3 Wiring Connection Diagram 27 ...

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Страница 30: ...Service Manual 29 Model No HL22F2a ...

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Страница 40: ...Service Manual Model No HL22F2a 39 ...

Страница 41: ... will be into the factory mode menu when 3 steps above are done 8 1 2 How to exit If you want to exit this factory menu please press the button Exit on the remote 8 2 Measurements and Adjustments 8 2 1 Version S N Panel Resoution Version info The first item is the Model Name and the second one is current software version See picture on the next page Service Manual Model No HL22F2a 40 ...

Страница 42: ...he 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 Color Temperature The function could adjust the Color Temperature used when debugging 41 Service Manual Model No HLC22F2a ...

Страница 43: ...AV S Video YPbPr VGA Compression Factor Compression state Downmix output model MTS System used when debugging The parameters only used when GHEXJJLQJ QR QHHG WR EH PRGL HG 8 2 4 Channel Range Scan The function could make it to search the channels by differentiation the analog and digital channels Service Manual Model No HL22F2a 42 ...

Страница 44: ...LQ DGYDQFH 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 43 Service Manual Model No HL22F2a ...

Страница 45: ...8 2 5 Gamma Gamma Bright GAMMA0 8 Middle default settings in the program Dark GAMMA1 2 8 2 6 Backlight Backlight adjust the backlight Service Manual Model No HL22F2a 44 ...

Страница 46: ...s 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 45 Service Manual Model No HL22F2a ...

Страница 47: ...Remark The date of the chart only is an example please don t adjust the factory mode base on it Service Manual Model No HL22F2a 46 ...

Страница 48: ...rify if correct channel is selected Adjust the antenna Make adjustments by Fine Tune and MANUAL Scan No color for some channel program black and white Verify if the same problem exists in other channels check out of picture and sound system Refer to relative instructions in the Manual for color adjust Spots with some or all pictures Verify if the antennal is correctly connected Verify if the anten...

Страница 49: ...9 2 Power Supply Board Failure Check Service Manual Model No HL22F2a 48 ...

Страница 50: ...ut Check the input output Re soldering or change IC U13 Check the input output Re soldering or change IC U55 Check the input output Re soldering or change IC U2 Check the Speaker Change the Speaker Check the Sperker wire Fail Pass Fail Fail Fail Fail Pass Pass Pass Pass 49 Service Manual Model No HL22F2a ...

Страница 51: ... Sunken TCP lead cracking ACF bonding short Awful environment and something electric enter into LCD Mis align between TCP and Panel Panel failure TCP failure V Dim Vertal gray line V L D Vertical color line light or dark forever H B D Horizontal bar H Dim Horizontal gary line H L D Horizontal line light or dark forever Service Manual Model No HL22F2a 50 ...

Страница 52: ...er Bladder between Polarizer and top glass Polarizer Scratch Polarizer Scratch Tine or rigidity arose F inside Polarizer Eyewinker inside Polarizer Eyewinker inside Polarizer Circuit Abnormal Display Abnormal Display 1 Chip lose action 2 IC ahort or jointiog bad 3 Pannel and vsc connect bad Flashing Bright and dark display alternately 51 Service Manual Model No HL22F2a ...

Страница 53: ...ent and EDS Black Screen B L normal only Black screen display FIIcker Crosstalk LCD Vcom imbalance Abnormal Color Only color abormal Capacitance improper bring crosstalk inside LCD pannel Abnormal Color Only color abnormal 1 Chip lose action 2 IC short or jointion bad 3 Pannel and vsc connect bad Service Manual Model No HL22F2a 52 ...

Страница 54: ...wire and electrode B L dark B L brightness darker than normal Connect badnessShort between wire and electrode B L wire damaged B L wire damaged Operation abnormal or systemic noise B L wire open Without backlight Operation abnormal or systemic noise B L shut down B L shutdown in sometime Short bitween lamp housing and wire Because consume power too much F M F M inB L white balck Rotundity or wirel...

Страница 55: ...lcal or B L Light leakage Brightness at bottom of LCM brighter than normal B L unit badness Uniformity B L brightness asymmetric Sheet in B L unit is uneven Mount hole Lack screw or screw damage Lack screw Screw damage Service Manual Model No HL22F2a 54 ...

Страница 56: ...Sincere Forever Haier Group Haier Industrial Park No 1 Haier Road 266101 Qingdao China http www haier com Printed in China ...

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