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Acer X221, Руководство по обслуживанию

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Table of contents

 

Chapter 1 MONITOR FEATURE

 …………………………………………………………….9 

 

Chapter 2 OPERATING INSTRUTION

 …………………………………………………….

..26

 

Chapter 3 MACHINE ASSEMBLY

……………………………………………………………

32

 

 

Chapter 4 TROBLE SHOOTING

 …………………………………………………………….

44

 

 

Chapter 5 CONNECTOR INFORMATION

…………………………………………………..

47

 

 

Chapter 6 FRU LIST

…………………………………………………………………………..

49

 

Chapter 7 SCHEMATIC DIAGRAM

 …………………………………………………………

53

 

 

Chapter 8 POWER BOARD INFORMATION

 ………………………………………………

62

 
 
 
 
 
 
 
 
 
 

 

 

 

 

 

Содержание X221

Страница 1: ... 1 Acer X221W Service Guide Service guide files and updates are available on the CSD web for more information Please refer to http csd acer com tw 100 Recycled Paper ...

Страница 2: ...ect to the contents hereof and specifically disclaims any warranties of merchantability or fitness for any particular purpose Any Acer Incorporated software described in this manual is sold or licensed as is Should the programs prove defective following their purchase the buyer and not Acer Incorporated its distributor of its dealer assumes the entire cost of all necessary servicing repair and any...

Страница 3: ... bits and pieces of additional information related to the current topic Warning Alerts you to any damage that might result from doing or not doing specific actions Caution Gives precautionary measures to avoid possible hardware or software problems Important Reminds you to do specific actions relevant to the accomplishment of procedures ...

Страница 4: ...l NOT be covered in this generic service guide In such cases please contact your regional offices or the responsible personnel channel to provide you with further technical details 2 please not WHEN ORDERING FRU PARTS that you should check the most up to date information available on your regional web or channel If for whatever reason a part number change is made it will not be noted in the printe...

Страница 5: ...ceiving antenna 2 Increase the separation between the equipment and receiver 3 Connect the equipment into an outlet on a circuit different from that to which the receiver is connected 4 Consult the dealer or an experienced radio TV technician for help NOTICE 1 The changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the ...

Страница 6: ...any z The monitor is equipped with a three pronged grounded plug a plug with a third grounding pin This plug will fit only into a grounded power outlet as a safety feature If your outlet does not accommodate the three wire plug have an electrician install the correct outlet or use an adapter to ground the appliance safely Do not defeat the safety purpose of the grounded plug z Unplug the unit duri...

Страница 7: ...ay find slightly uneven brightness in the screen depending on the desktop pattern you use z The LCD screen has effective pixels of 99 99 or more It may include blemishes of 0 01 or less such as a missing pixel or a pixel lit all of the time z Due to the nature of the LCD screen an afterimage of the previous screen may remain after switching the image when the same image is displayed for hours In t...

Страница 8: ...ONITOR FEATURE 9 Chapter 2 OPERATING INSTRUTION 26 Chapter 3 MACHINE ASSEMBLY 32 Chapter 4 TROBLE SHOOTING 44 Chapter 5 CONNECTOR INFORMATION 47 Chapter 6 FRU LIST 49 Chapter 7 SCHEMATIC DIAGRAM 53 Chapter 8 POWER BOARD INFORMATION 62 ...

Страница 9: ...Display Color 16 7 million Colors Maximum Dot Clock 146MHz Max Resolution 1680x1050 60HZ Plug Play VESA FPMPMI ON Mode 50W EPA ENERGY STAY OFF Mode 1W Audio output Rated Power 2 0W rms Per channel Input Connector D Sub 15 pin DVI connector on DVI box Input Video Signal Analog 0 7Vp p 75OHM Horizontal 473 76mm Screen Size Active Vertical 296 1mm Power Source 90 264 Vac 47 63HZ Environmental Conside...

Страница 10: ...T Volume Volume AUTO ENTER External Controls Contrast brightness Focus Clock H Position W Position Language OSD Color temperature OSD Position Timeout Auto Config Input Information Reset Exit Regulatory Compliance cUL FCC TUV CE TCO03 ...

Страница 11: ... dots 3 175 96 dots 4 064 128 dots H Active us 25 42 720dots 25 422 640 dots 21 164 640 dots 20 317 640 dots H F P us 0 636 18dots 0 636 16 dots 2 116 64 dots 0 762 24 dots f v 70Hz 70 087 60Hz 59 940 66 7 HZ 66 667 72 809Hz V Total ms 14 27 449 lines 16 683 525 lines 15 000 525 lines 13 735 520 lines V Sync ms 0 064 2 lines 0 064 2 lines 0 086 3 lines 0 079 3 lines V B P ms 1 112 35 lines 1 049 3...

Страница 12: ...ines V F P ms 0 027 1 line 0 03 1 line 0 026 1 line 0 021 1 line SYNC H V POLARITY SEP SYNC Y Y Y Y MODE NO 9 10 11 12 RESOLUTION 800 x 600 832 x 624 1024 x 768 1024 x 768 Dot clock MHz 50 57 283 65 75 f h 48 077kHz 49 72kHz 48 363kHz 56 48kHz H Total us 20 80 1040dots 20 11 1152 dots 20 677 1344 dots 17 71 1328 dots H Sync us 2 400 120 dots 1 12 64 dots 2 092 136 dots 1 81 136 dots H B P us 1 280...

Страница 13: ... V F P ms 0 02 1 lines 0 016 1 line 0 013 1 lines 0 015 1 lines SYNC H V POLARITY SEP SYNC Y Y Y Y MODE NO 17 18 19 20 RESOLUTION 1280 x 960 1600 x 1200 1280 x 720 1280 x 768 Dot clock MHz 108 162 74 481 79 5 f h 60 000 KHz 75 000 KHz 44 760KHz 47 776KHz H Total us 16 667 1800dots 13 333 2160 dots 22 341 1664dots 20 931 1664dots H Sync us 1 037 112 dots 1 185 192 dots 1 826 136 dots 1 61 128 dots ...

Страница 14: ... lines 0 126 6 lines 0 107 6 lines 0 085 6 lines V B P ms 0 448 27 lines 0 377 18 lines 0 447 25 lines 0 467 33 lines V Active ms 12 739 768 lines 16 097 768 lines 16 09 900 lines 12 741 900 lines V F P ms 0 05 3 lines 0 063 3 lines 0 054 3 lines 0 042 3 lines SYNC H V POLARITY SEP SYNC Y Y Y Y MODE NO 25 26 RESOLUTION 1680 x 1050 848 x 480 Dot clock MHz 146 25 33 75 f h 65 29 KHz 31 02 KHz H Tota...

Страница 15: ...B2P LVB1M LVB3M HPD_CTRL DET_DVI VCTRL MUTE VOLUME STBY A2 2 POWER on_BACKLIGHT Adj_BACKLIGHT VCC1 8 VCC3 3 5V VCC12 VCTRL PC5V A3 3 INPUT RIN GIN BIN VSYNC GNDR GNDG GNDB DET_VGA HSYNC SOG DDCA_SDA DDCA_SCL B G G R CLK R CLK B DDCD_SDA DDCD_SCL PC5V DET_DVI HPD_CTRL A5 5 PANEL LVB1M LVB0M LVB2P LVA1M LVB2M LVB3M LVA3P LVBCKP LVB3P LVA1P LVB1P LVA0M LVBCKM LVA3M LVA0P LVB0P LVACKP LVA2P LVACKM LVA...

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Страница 26: ...nction Press to view OSD Press again to exit a selection in OSD 3 UP PLUS If OSD is active press to select or adjust OSD options If OSD is inactive press once then press the buttons marked or to adjust the volume 4 DOWN MINUS If OSD is active press to select or adjust OSD options If OSD is inactive press once then press the buttons marked or to adjust the volume 5 AUTO If OSD is active press to en...

Страница 27: ... you desire Focus This removes any horizontal distortion and makes the picture clear and sharp Clock If there are any vertical stripes seen on the background of the screen this renders them less noticeable by minimizing their size It also changes the size of the horizontal screen H Position This adjusts the horizontal screen position V Position This adjusts the vertical screen position Color temp ...

Страница 28: ...alian Spanish Simplified Chinese Traditional Chinese Japanese and Russian OSD H Position OSD V Position OSD Time out This changes the position of the OSD window on the screen and staying time Factory Mode You can entry into factory mode when press Auto and then press Power Key LED light it is successful if Power LED Light is amber Factory1 Adjustment R G B OFFSET Adjust current RGB cut off level ...

Страница 29: ...tory mode AUTO BURN Use the chip set internal pattern for hot running monitor panel and inverter AUTO COLOR Perform Auto Balance measurement COLOR UPDATE Force presently R G B offset and gain parameters update to currently temperature memory address FACTORY RESET Recall to factory setting and power off immediately Display F W version and panel vender and DDC serial no ...

Страница 30: ...lities according to the VESA DDC STANDARD It allows the monitor to inform the host system of its identity and depending on the level of DDC used communicate additional information about its display capabilities The communication channel is defined in two levels DDC2B The DDC2B is a bi directional data channel based on the I2 C protocol The host can request EDID information over the DDC2B channel S...

Страница 31: ...stored and the display is automatically redrawn The appearance is similar to a Screen Saver feature except the display is completely off The display is restored by pressing a key on the keyboard or clicking the mouse USING THE RIGHT POWER CORD The accessory power cord for the Northern American region is the wallet plug with NEMA 5 15 style and is UL listed and CSA labeled The voltage rating for th...

Страница 32: ...TE 1 The screws for the different components vary in size During the disassembly process group the screws with the corresponding to avoid mismatch when putting back the components 2 Note The monitor surface is susceptible to scratching Therefore lay the monitor on a soft surface when mounting or removing the base 3 Wear gloves Front View unit inch ...

Страница 33: ... 33 Real View Top View ...

Страница 34: ... 34 Side View unit mm ...

Страница 35: ...S RUBBER ON THE LOCATION OF SHIELDING AS LEFT SHOW PUT 1 PCS FLOW CARD ON THE PRODUCTION LINE CHECKING THE MAIN BOARD WHETHER BAD CHECKING THE LVDS CABLE AND INSERT IT TO THE SINK OF MAIN BOARD CHECKING THE CONNECT CABLE OF BUTTON BOARD AND INSERT IT TO THE SINK OF MIAN BOARD PUT THE FINISHED SUBASSEMBLY TO THE PRODUCTION LINE Assembly process ...

Страница 36: ...ENT OF PANEL CONNECT THE CABLE AND POWER B BY WHITE GOOEY MARK THE APPOINTED LOCATION BY PEN AS LEFT SHOW PUT THE POWER BOARD TO PRODUCTION LINE CONNECT THE MAIN BOARD AND POWER BOARD PUT 1 PCS SPRING TO THE SINK OF DVI THEN PUT THE M B P B TO THE PCB SHIELDING NO NEED TO FINISH THIS STEP WHEN NO DVI ...

Страница 37: ...TO THE SHIELDING LOCK UP 1 PCS SCREWS M4 8 B ON THE LOCATION OF POWER BOARD AS LEFT SHOW LOCK UP 3 PCS SCREWS M3 6 B ON THE LOCATION OF POWER BOARD AS LEFT SHOW MOVE THE SHIELDING ON FRONT OF POWER BOARD TEAR OFF THE PACKING OF PANEL PUT PANEL ON THE PRODUCTION LINE AND TEAR OFF THE COLLOID ...

Страница 38: ...EL TURN OVER THE PANEL AND TEAR OFF THE PLASTIC FILM TEAR OFF 1 PCS CODE ON THE PANEL FROM FLOW CARD SCAN THE FLOW CARD S N AND CODE AND P N OF PANEL GETTING AND CHECKING THE RIGHT BRACKET WHETHER ANAMORPHIC AND RUSTY PUT THE RIGHT BRACKET ON THE LEFT OF PANEL AND LOCK UP 2 PCS SCREWS OF IT ...

Страница 39: ... ON THE LOCATION AS LEFT SHOW TURN OVER THE PANEL AND TEAR OFF PLASTIC FILM GET THE BEZEL AND TEAR OFF PACKING THEN CHECKING WHETHER BAD PUT THE BEZEL TO THE PANEL STICK THE PLASTIC FILM ON THE BEZEL TURN OVER THE LCD AND CHANGE THE PANEL TO DOWNSIDE SCAN THE FLOW CARD S N AND CODE OF MAIN BOARD LOCK UP3 PCS SCREWS ON THE LOCATION OF THE RIGHTSIDE OF BEZEL ...

Страница 40: ... 2 PCS RUBBER ON THE LOCATION OF PANEL PUT 2 PCS HOOKS ON THE LOCATION OF BEZEL LOCK UP 2 PCS SCREWS TO HOOKS FOR RIVET BEZEL INSERT THE BUTTON CABLE TO THE JACK OF BUTTON BOARD PUT THE BUTTON TO THE BEZEL DON T LET THE PLASTIC ANAMORPHIC SETTLE THE BUTTON CABLE AND STICK 1 PCS COLLOID ON IT FOR RIVET ...

Страница 41: ...OWNSIDE LAMP CABLE CHECKING THE LAMP CABLE WHETHER ANY MISS WITH INSTRUMENTS STICK 1 PCS AL FOIL 50 70 TO THE PANEL AND SHIELDING FOR CONNECTION AS LEFT SHOW STICK 1 PCS AL FOIL 50 40 TO THE PANEL AND SHIELDING FOR CONNECTION AS LEFT SHOW STICK 1 PCS AL FOIL 50 70 TO THE PANEL AND SHIELDING FOR CONNECTION IF NO DVI AS LEFT SHOW LET THE AL FOIL FIRM ON THE LCD ...

Страница 42: ...IRMED THE AL FOIL TURN OVER LCD AND CHECKIN WHETHER ANY DIRTY CHECKING THE REAR COVER AND PUT IT TO THE BEZEL STICK 1 PCS OF CODE ON THE LOCATION OF REAR COVER FROM FLOW CARD AS LEFT SHOW CHECKING REAR COVER AND MAKING SURE WHETHER SETTLED LOCK UP2 PCS SCREWS ON THE REAR COVER CHECKING THE STAND AND PUT IT TO PRODUCTION LINE ...

Страница 43: ...OCATION OF REAR COVER LOCK UP 4 PCS ON SCREWS ON THE STAND FOR RIVETING INSERT THE VGA SIGNAL CABLE TO THE SINK OF LCD PUT THE BASE ON THE STAND OF LCD STAND UP THE LCD INSERT THE POWER CABLE TO THE POWER SINK AND TURN ON IT STICK THE FLOW CARD ON THE RIGHT OF BEZEL DOWNSIDE ...

Страница 44: ...ower Board NO Check D1 1 8V U1 out 3 3V Change Q3 D1 U1 D2 NO Check Short Of Main Board No Yes Check X1 14 318MHz NO Change X1 Yes Check U5 Pin 42 43 Clock NO Change U5 or U4 RUN Software ISP Change U5 Yes Check U6 Pin 42 43 Clock Change U6 NO Check Bottom Board Chapter 4 ...

Страница 45: ...issing Color Check VGA Cable Yes Change Cable NO Check R27 R29 R31 Change R1 R5 R10 U2 NO Yes Check CN2 LVDS Signal NO Change U4 or CN2 Cable or Panel Yes Check OSD R G B Gain NO Adjustment R G B Color Change Panel Yes ...

Страница 46: ...3 Always show NO SIGNEL NO SIGNEL Check VGA Cable Yes Change Cable NO VGA Check C23 C24 R44 R4 5 Change R42 R43 FB1 R 44 R45 C23 C24 NO Change U4 Yes ...

Страница 47: ...PIN3 Audio Line in receptacle Video signal connector 15P Mini D Sub connector x 1 PIN Signal 1 Red 2 Green 3 Blue 4 No Pin 5 Ground 6 Ground Red 7 Ground Green 8 Ground Blue 9 5 V for DDC 10 Ground 11 Ground 12 SDA DDC Data 13 H Sync 14 V Sync 15 SCL DDC Clock CN6 DB15HD 1 6 2 7 3 8 4 9 5 11 12 13 14 15 10 16 17 ...

Страница 48: ...DS data2 2 TMDS data2 3 TMDS data2 shield 4 NC 5 NC 6 DDC clock 7 DDC data 8 Not connected 9 TMDS data1 10 TMDS data1 11 TMDS data1 shield 12 NC 13 NC 14 5V 15 Ground return for 5 V and H V sync 16 Hot plug detect 17 TMDS data0 18 TMDS data0 19 TMDS data0 shield 20 NC 21 NC 22 TMDS clock shield 23 TMDS clock 24 TMDS clock ...

Страница 49: ...om tw spl For whatever reasons a part number change is made it will not be noted in the printed Service Guide For ACER AUTHORIZED CERVICE PROVIDERS your Acer office may have a DIFFERENT part number code to those given in the FRU list of this printed Service Guide You MUST use the local FRU list provided by your regional Acer office to order FRU parts repair and service of customer machines NOTE To...

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Страница 51: ... ADP INV ASP055 2PI02A 90 264V GP 1 6 FCM7TD04014 AL FOIL M7T 1 21 21WBTBMB079 WBTB M B ASSY FOR WBTD TSUMU58WHJ GP 1 7 FAWBTD01016 SHIELDING_X WBTD 1 22 MM30060IBJ8 SCREW M3 0 6 0 I NI GP 4 8 EAWBTD01016 LCD COVER_X WBTD 1 23 MBLI1004D18 IO NUT LI1 4 9 EBL9TB02013 HHINGE ASSY L0TB 1 24 MF30100PJ23 SCREW F3 10 BNI GP 2 10 EBL9TB02013 HINGE COVER L9TB 1 25 MF40080IBJ1 SCREW F4 8 I NI 4 11 MM40100B2...

Страница 52: ...list Above picture show the description of the following component Item Description Part No 1 Back Cover 25L7TBLC000 3 4 5 Picture 52 26L7TBSA001 34L7TBLB002 38L9TBBS000 MM40080BBW1 Stand Bezel Base Screw 2 ...

Страница 53: ... 0 CONTENT 1 4 Audio SHEET POWER B CONTENTS 3 SCALAR TSUMU58WHJ VGA AND TMDS INPUT SCHEMATIC 7 cover 7 7 CONTENTS WBTD D A Monday November 06 2006 Title Size Document Number Rev Date Sheet of Chapter 7 of Chapter 7 SCHEMATIC DIAGRAM of Chapter 7 SCHEMATIC DIAGRAM of SCHEMATIC DIAGRAM ...

Страница 54: ...VIN OUT CN1 CONN 4x2 R 4 5 6 1 2 3 8 7 R13 100 6 R9 0 6 5 C5 4 7uF 16V R3 10K 6 L1 CX201209813 8 C3 0 1uF 6 NC R6 10K 6 R12 2K 6 R18 330 6 1 R8 1K 6 C6 1uF 8 NC R5 10K 6 C8 330u 16V D4 SSM12LL R17 200 6 1 R1 0 1206 D2 1N4148 Q3 2SB1132PT C B E C7 330u 16V Q2 2N3904 3 1 2 Q1 MMST3906 D3 BAT54C GS08 R7 47 6 U3 A1 LT1117 TO252 NC 1 2 3 4 ADJ GND VOUT VIN OUT R4 1K 6 R11 2 2K 6 on_BACKLIGHT 4 Adj_BACK...

Страница 55: ...19 47nF 6 D5 BAV99 NC 3 2 1 D19 BAV99 NC 3 2 1 R27 56 6 1 C18 47nF 6 D23 BAV99 NC 3 2 1 D14 Z5 6V NC D17 Z5 6V NC C27 0 1uF 6 NC D13 Z5 6V NC C33 0 1uF 6 NC D16 Z5 6V NC C31 0 1uF 6 NC C25 0 1uF 6 NC R46 10K 6 NC R36 75 6 1 D8 BAT54C GS08 NC 3 1 2 D11 Z5 6V NC R61 10 6 NC D9 Z5 6V NC R44 2 2K 6 R28 30 6 bead C28 0 1uF 6 NC R56 4 7K 6 NC R38 100 6 1 FB1 0 6 D18 BAV99 NC 3 2 1 R60 10 6 NC R59 10 6 N...

Страница 56: ...0 90 89 122 2 113 56 55 57 61 64 70 67 21 106 105 47 46 48 50 49 45 68 69 63 62 60 65 66 71 125 54 58 RIN0P GIN0P SOGIN0 BIN0P RIN0M GIN0M BIN0M HSYNC0 VSYNC0 REXT REFP REFM SDO SCK CSZ SDI GPIO_P24 PWM2 LVACKM XIN XOUT LVA2P LVA2M LVA1P LVA1M LVA0P LVA0M LVB3P LVB3M LVBCKP LVBCKM LVB2P LVB2M LVB1P LVB1M LVB0P LVB0M LVACKP LVA3M LVA3P GND GND RX2P RX2N RX1P RX1N AVDD_33 RX0P RX0N RXCKP RXCKN GND G...

Страница 57: ...76D126 2 3 4 5 6 7 8 9 Q4 SI9435 2 3 4 5 7 6 8 1 Q5 DTC144EUA 2 3 1 R21 1 2K F NC R19 3 6K F NC R24 2 2K 6 CN2 1841 30P 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 1 H3 MTH276D126 2 3 4 5 6 7 8 9 1 H1 MTH276D126 2 3 4 5 6 7 8 9 C9 2200PF 6 R20 CX201209813 8 C12 330U 16V R105 CX2012...

Страница 58: ... AR12 10K 6 AR9 CX201209813 8 AC4 1uF 8 AL6 CX201209813 8 AC6 1uF 8 AR8 CX201209813 8 AL7 CX201209813 8 AQ1 2N3904 2 3 1 AR13 10K 6 AC1 1uF 8 AU1 TDA7496L 4 9 5 6 7 17 14 12 11 10 13 15 16 1 2 3 19 20 18 INL INR VAROUT_L VOLUME VAROUR_R OUTL OUTR MUTE STBY SVR GND VS VS GND GND GND GND GND GND AQ2 MMST3906 AL1 CX201209813 8 AC3 330U 16V ACN1 4606 04 04P R 1 2 3 4 AC8 220pF 6 AC10 0 1uF 6 AL2 CX201...

Страница 59: ... Key Board P L A 2 8 Monday October 31 2005 Title Size Document Number Rev Date Sheet of MENU_O SEL_O PWR_O RIGHT_O LEFT_O AMBER_O GREEN_O SW2 TOUCH SWITCH 4P SW3 TOUCH SWITCH 4P CN8 JST 8Pin PH2 0mm H 1 2 3 4 5 6 7 8 LD1 LED Dual 1 2 3 SW4 TOUCH SWITCH 4P LD2 LED Dual 1 2 3 SW1 TOUCH SWITCH 4P SW5 TOUCH SWITCH 4P ...

Страница 60: ...2 6 D2 5 U2 C30 R11 BRC 9 BRS 10 DBRT 11 ABRT 12 ENSYNC 13 LOK 14 PRR 15 BTR 16 SI 1 LI 2 LV 3 COMP 4 AG 5 FT 6 LCS 7 LCC 8 UGR 17 OUTR 18 VCCR 19 LGR 20 PRL 22 PGR 21 PGL 28 LGL 27 VCCL 26 OUTL 25 UGL 24 BTL 23 U1 R9 R3 R10 C6 IC_VCC IC_VCC R17 G D S Q2 C23 D14 C19 C20 R28 R29 R22 R30 R31 R23 R32 R33 R24 LI LI LI FB4 FB3 FB2 C14 FB1 C15 C16 C17 LV1 LV2 LV3 LV4 C22 R18 R7 1 2 CN1 LV4 1 2 CN2 LV3 1...

Страница 61: ...03 C114 D110 T101 R112 C115 1 3 4 5 D120 R120 R121 L120 C260 R260 D260 C263 12V 0 8A R234 C231 R232 R233 A K R IC230 R230 1 2 PC201A 12V R231 R262 C261 9 10 INVERTER Drain 1 GND 2 Vcc 3 FB 4 Ilimit 6 NC 5 U101 3 4 PC201B C120 C123 ZD120 5V 2 5A 5V D240 R240 C240 C241 L240 C242 RTN 8 ZD121 6 7 F101 CX101 CY101 VA101 1 4 2 3 LF102 TH101 3 2 4 1 BD101 L N FG CN100 R101 CY102 R102 1 4 2 3 LF101 R241 Z...

Страница 62: ...ation P N Model Name Lamp Current AAM220EW000 LCD TFT 22 M220EW01 V0 7 0mA AAO220Z1008 LCD TFT 22 M220Z1 L01 7 0mA AAO220Z1016 LCD TFT 22 M220Z1 L01 7 0mA When the lamp current value is 7 0MA the jumper should be done as the picture left show ...

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