Acer AT1921 Service Manual Download

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Acer AT1921/22

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

Summary of Contents for AT1921

Page 1: ... 1 Acer AT1921 22 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 ...

Page 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...

Page 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 ...

Page 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...

Page 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 ...

Page 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...

Page 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...

Page 8: ...ontents Chapter 1 LCD TV FEATURE 9 Chapter 2 OPERATING INSTRUTION 20 Chapter 3 MACHINE ASSEMBLY 25 Chapter 4 TROBLE SHOOTING 39 Chapter 5 CONNECTOR INFORMATION 42 Chapter 6 FRU LIST 43 Chapter 7 SCHEMATIC DIAGRAM 45 ...

Page 9: ...lor 16 7 M colors RGB 6 bits HiFRC Contrast Ratio 800 1 Typical 600 1 Min Brightness 300 cd m 2 Typical Response Time 5 ms Typ LCD Panel View Angle 80 L 80 R 80 U 80 D HDMI For Audio Video RCA Jack 3 For Audio Video Din Jack For S Video SCART 1 21 Pin for Video S Video RGB PH Jack For TV Input PAL system Earphone Jack For Audio Output SPDIF For Audio output I2S 3 5mm Stereo Jack For PC Stereo Audi...

Page 10: ... No Signal within 8 seconds and LED is green Standard x 300 y 310 Y 250cd m 2 center Warm x 317 y 327 Y 250cd m 2 center Color Temperature Cold x 285 y 293 Y 220cd m 2 center Key count 43 Keys Effective Distance More than 5 m 45 45degree Remote Controller Supplier Panasonic Local Control Key 7 Keys Power Left Right Up Down Menu Select Display Area 19W inches diagonal H Phase A B Less than 1 5mm V ...

Page 11: ...Watts Max Mechanical VESA Mount 100 100 mm Input Output Signal Specification Type Analog Polarity Positive Level 1Vp p with Sync Impedance 75Ω 5 CVBS Input Interface RCA jack Yellow color Type Analog Polarity Positive Level Y 1Vp p with Sync C 0 286Vp p Impedance 75Ω 5 S Video Input Interface DIN Jack Type Analog Polarity Positive Impedance 75Ω 5 SCART Input Interface 21 Pin Euro SCART Type Stereo...

Page 12: ...W Max at Max Volume Type Stereo R L Channels Level 400Vrms Audio Line Output Interface 3 5mm Stereo Jack Input Impedance 75 ohms Frequency Range 48 25 855 25 MHz PAL Video S N Ratio 45 d B Typical RF Input Audio S N Ratio 63 d B Typical Level Low 0 to 0 8V High 2 0 to 5 V Polarity Positive or Negative Sync Impedance 1 k ohm or higher Level 0 to 700mV Positive VGA Input RGB Signal Impedance 75Ω 5 1...

Page 13: ...3 3 85 VESA 8 800 600 35 156 56 VESA 9 800 600 37 879 60 VESA 10 800 600 48 077 72 VESA 11 800 600 46 875 75 VESA 12 800 600 53 674 85 VESA 13 832 624 49 72 74 5 MAC 14 1024 768 48 36 60 VESA 15 1024 768 56 48 70 VESA 16 1024 768 60 02 75 VESA 17 1280 720 44 772 59 86 VESA 16 9 18 1280 720 56 456 74 78 VESA 16 9 19 1360 768 47 72 59 8 VESA 16 9 20 1360 768 60 288 74 89 VESA 16 9 21 1440 900 55 935...

Page 14: ...dio input SCART Audio input Tuner Audio input SCART Audio output S Video input CVBS input PC Video input Tuner Video input LVDS SCART RGB input SCART S VIDEO input SCAR CVBS input ADC GPIO Earphone 2 Wire Bus Speaker DDC EEPROM HDMI DDC EEPROM I2S Bus HDMI receiver MT8293 HDCP Keys 16bit 4 2 2 MTK format User Keypad SPDIF 2 Wire Bus DDRAM GPIO RS232 Monitor Block Diagram ...

Page 15: ...PCB CONDUCTOR VIEW MAIN BOARD ...

Page 16: ......

Page 17: ...BUTTON BOARD ...

Page 18: ...USB BOARD ...

Page 19: ...POWER BOARD ...

Page 20: ... Press Vol Left key to move selection left or to decrease value Press these buttons to select the volume level 6 Vol Right Press Vol Right key to move selection right or to increase value Press these buttons to select the volume level 7 Input OK Press this button to confirm selection Press this button to select the input source ATV AV S Video SCART HDMI VGA Back to ATV PS PS SCART RGB S Video CVBS...

Page 21: ... OK Selection Confirmation 26 Menu Open Exit Menu 27 Channel Up In ATV mode press this key to do Channel up 28 Channel Down In ATV mode press this key to do Channel down 29 Volume up Volume up 30 Volume down Volume down 31 MPX NICAM STEREO Broabcast Stereo Mono BILINGUAL Broadcast Sound 1 Sound 2 MONAURAL Mono FM FM STEREO Broadcast Stereo Mono BILINGUAL Sound1 Sound2 Stereo Mono 32 INDEX Go to in...

Page 22: ... 9 Panorama Letterbox1 Letterbox2 Letterbox3 OSD Tree PAL Menu Structure 1 st Sub Menu 2 nd Sub Menu 3 rd Sub Menu 4 rd Sub Menu ATV S Video AV Scart VGA HDMI Brightness Slider 50 0 100 1 v v v v v v Contrast Slider 80 0 100 1 v v v v v v Color Slider 70 0 100 1 v v v v v Hue Slider 50 0 100 1 v v v v Sharpness Slider 4 0 7 1 v v v v v Back Light Slider 100 0 100 1 v v v v v v Cold Standard Color ...

Page 23: ...mbourg Czech Republic Portugal United Arab Emirates Channel Management Country Saudi Arabia v On Skip Off v Reorder v Name v Frequency v Auto Scan v Manual Scan Scan up Scan down Scan for update v Lock This Channel Please enter your PIN Lock Unlock v English Deutsch French Italian Spanish Portuguese Settings Menu Language Cestina v v v v v v ...

Page 24: ...umber Key Page Selection Page can be selected in two ways a Press Up or Down to increase or decrease the page number by one b By entering the page number using 0 9 on the remote controller Red Green Yellow Blue Teletext RGBY soft key In fast text mode these correspond to differently coloured subjects In list mode they correspond to the different coloured page numbers HOLD Hold the page To hold the...

Page 25: ...OTE 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 mm ...

Page 26: ... 26 Real View Top View ...

Page 27: ...Side View unit mm ...

Page 28: ...E JUMP CABLE INTO THE P B AS LEFT SHOW CONNECT THE JUMP CABLE AND P B WITH WHITE GOOEY MARK THE LOCATION WITH COLOR PEN AS LEFT SHOW PUT IT TO THE PRODUCTION LINE CHECKING THE M B AND LVDS CABLE AND INSERT THE LVDS CABLE INTO THE JOINT OF M B INSERT THE M B P B CABLE INTO THE JOINT OF M B AND P B PUT THE CONNECTED M B AND P B TO THE SHIELDING THEN PUT IT TO PRODUCTION LINE Assembly process ...

Page 29: ...8 0 T TO THE P B LOCK UP 1 PCS SCREW M3 0 5 0 I TO THE P B LOCK UP 2 PCS SCREWS F3 0 6 0 T TO THE P B AS LEFT SHOW LOCK UP 1 PCS SCREW M3 0 5 0 TO THE SHIELDING LOCK UP 1 PCS SCREW M3 0 7 0 TO THE SHIELDING REMOVE THE SHIELDING FORWARD PUT THE PANEL TO THE PRODUCTION LINE AND TEAR OFF THE PROTECT FILM ...

Page 30: ...OEY TAPE FOR FIXING PROTECT FILM TURN OVER LCD AND TEAR OFF EP BAG STICK 1 PCS CODE TO PANEL AS LEFT SHOW SCAN THE FLOW CARD PANEL CODE AND P N TO TMS SYSTEM CHECKING THE LEFT BRACKET AND PUT IT TO THE LEFTSIDE OF PAENL LOCK UP 2 PCS SCREWS FOR FIXING LEFT BRACKET ...

Page 31: ...RIGHT BRACKET AS LEFT SHOW PUT THE RIGHT BRACKET TO THE PAENL LOCK UP 2 PCS SCREWS TO RIGHT BRACKET FOR FIXING SCAN FLOW CARD AND M B CODE TO THE TMS SYSTEM INSERT THE LVDS CABLE TO THE JOINT OF PANEL STICK 1 PCS ACETIC TAPE FOR FIXING LVDS CABLE ...

Page 32: ...CONNECT THE SHIELDING AND BRACKET AS LEFT SHOW LOCK UP 4 PCS SCREWS F3 6 FOR FIXING SHIELDING TRUN OVER LCD CHECKING THE BEZEL IF BAD AND PUT IT TO THE PANEL TRUN OVER THE LCD ...

Page 33: ...S FOR FIXING RIGHTSIDE BEZEL AND BRACKET LOCK UP 3 PCS SCREWS FOR FIXING LEFTSIDE BEZEL AND BRACKET INSERT THE 4PCS LAMP CABLE TO THE PUT THE SPEAKER TO THE BEZEL AS LEFT SHOW LOCK UP 4 PCS SCREWS FOR FIXING LEFT SPEAKER ...

Page 34: ... FIXING RIGHT SPEAKER GET THE B B AND CONNECT THE B B AND BEZEL WITH B B CABLE GET THE IR B AND INSERT THE IR B CABLE TO THE JOINT OF M B PUT THE IR B TO THE LOCATION OF BEZEL LOCK UP 2 PCS SCREWS F3 10 TO THE IR B FOR FIXING ...

Page 35: ...P 2 PCS IO NUTS FOR FIXING SHIELDING INSERT 1 PCS CABLE FASTNER TO SHIELDING SETTLE THE CABLE FOR B B SPEAKER IR AND INSERT THEM INTO THE JOINT AS LEFT SHOW STICK 1 PCS ACETIC TAPE FOR FIXING B B AS LEFT SHOW ...

Page 36: ... SCREWS TO FIXING FASTENER BETWEEN PAENL AND BEZEL CHECKING THE CABLE IF WRONG WAY CHECKING THE SCERWS IF LOOSE CHECKING THE AL FOIL IF WRONG WAY MARK THE AL FOIL WITH WHITE PEN SHAKE THE LCD IF SOMETHING IN IT CHECKING THE REAR COVER IF BAD CONNECT THE BEZEL AND REAR COVER WITHOUT ...

Page 37: ...R FIXING REAR COVER STICK 1 PCS FLOW CARD TO GOOEY OF REAR COVER COVER IT WITH BAG LOCK UP 5 PCS SCREWS FOR FIXING REAR COVER AND BEZEL INSERT THE VGA CABLE INTO THE JOINT OF VGA CONNECT THE POWER CORD AND LCD TV STAND UP LCD ...

Page 38: ...STICK FLOW CARD TO BASE CHECKING THE BEZEL WHETHER BAD CHECKING THE REAR COVER WHETHER BAD CHECKING FUNCTION B WHETHER BAD ...

Page 39: ...Check M B L56 3 3V L58 1 8V correct Change M B Change M B Change P B yes yes No No No No picture No backlight Check Power B CN101 Pin9 3 3V correct Change power board Check LCD panel Change power board Yes No No Chapter 4 TROUBLE SHOOTING This chapter provides trouble shooting information for AT1921 22 ...

Page 40: ...in28 30 5V correct Check LVDS cable Change M B Change LVDS cable Check LCD panel VGA always show No Signal Check VGA cable correct Check input P2 Pin13 H sync pin14 V sync correct Check PC Change VGA cable Change M B Yes Yes No No Yes Yes No No ...

Page 41: ...Video mode always show No Signal Check Video cable correct Change I O board Change Video cable Yes No ...

Page 42: ... Cable Color Black color 3 SCART Cable Quantity no Length 2 5meters 15mm 0mm Cable Color Transparent color 4 TV Antenna Cable Quantity no Length 1 8meters 15mm 0mm Cable Color Black color 5 VGA Cable Quantity no Multi function remote controller include battery 6 Remote Controller Unit Quantity one 7 TV User Guide Quantity one 8 Remote Controller User Guide Quantity no 9 Warranty Card Quantity no 1...

Page 43: ...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...

Page 44: ......

Page 45: ... SCHEMATIC 2 AT1920 M B 3 4 5 6 7 8 9 LDO MT8201 LQFP256 E PAD DDR FLASH HDMI INPUT MT8293 VGA IN PC AUDIO IN TUNER INPUT GPIO AV SV AUDIO SCART FULL FUNCTION MT8291 AUDIO ADC LVDS OUT AUDIO AMP Keypad IR 10 11 12 13 14 Chapter 7 SCHEMATIC DIAGRAM ...

Page 46: ...3904 SOT23 2 1 3 R352 4 7k 6 L3 Bead_121_4A 8 L2 Bead_121_4A 8 CE1 330uF 25V 1 2 R6 10k 6 CB1 0 1uF 6 C211 22P 6 NC 1 2 D1 PSM A Q8 2N3904 SOT23 2 1 3 C5 0 1uF 6 CE3 47uF 16V 1 2 Q25 SI9435 NC 2 3 4 5 7 6 8 1 R3 2 2K 6 1 H3 MTH276D126 2 3 4 5 6 7 8 9 CE47 330uF 25V 1 2 R353 4 7k 6 NC Q7 2N3904 SOT23 2 1 3 R5 1k 6 C2 0 1uF 6 Q26 2N3904 NC SOT23 2 1 3 C3 10uF 25V 1 2 C212 22P 6 NC 1 2 CB96 0 1uF 6 C...

Page 47: ...OUT 2 VIN 3 CB95 0 1uF 6 NC 1 2 L55 Bead_121_4A 8 R27 200 6F C13 0 1uF 6 CB8 0 1uF 6 1 2 C43 10uF 10V 8 CC0805 C34 0 1uF 6 R24 100R 6F FB4 Bead_121_4A 8 CE5 10uF 10V 8 1 2 U5 AP1117ELA TO252 ADJ GND 1 VOUT 2 VIN 3 L65 Bead_121_4A 8 C12 10uF 25V 1 2 R20 2 2K 6F R19 1 4K 6F C39 10uF 25V 1 2 L46 Bead_121_4A 8 C44 10uF 10V 8 CC0805 C21 10uF 25V 1 2 CB14 0 1uF 6 1 2 CE46 10uF 25V NC 1 2 L64 Bead_121_4A...

Page 48: ...F 6 1 2 R50 0R 6 CB27 0 1uF 6 TP5 C48 10uF 10V 8 CC0805 TP2 C223 0 1uF 6 TP53 TP51 CB28 0 1uF 6 WR1 C213 10P 6 NC 1 2 C56 3300pF 6 1 2 Y1 27MHz 1 2 CB22 0 1uF 6 R45 10k 6 C230 3300pF 6 1 2 C231 3300pF 6 1 2 ALE1 RD1 TP1 C226 0 1uF 6 C51 3300pF 6 1 2 TP15 C55 3300pF 6 1 2 R42 4 7k 6 CB26 0 1uF 6 C46 22pF 6 1 2 C228 10uF 10V 8 CC0805 R47 0R 6 R48 10k 6 NC C222 0 1uF 6 TP50 C50 4 7uF 25V 1 2 TP3 C49 ...

Page 49: ...2 0 1uF 6 CB117 0 1uF 6 RN4 22R 8P4R 1 8 2 7 3 6 4 5 RN1 22R 8P4R 1 8 2 7 3 6 4 5 C244 0 1uF 6 CE51 10uF 25V 1 2 R52 0R 6 CB100 0 1uF 6 RN15 75R 8P4R 1 8 2 7 3 6 4 5 R364 150R 6 R359 75R 6 R59 22R 6 CE50 10uF 25V 1 2 CB114 0 1uF 6 CE8 330uF 25V 1 2 R358 75R 6 CB101 0 1uF 6 R58 22R 6 RN16 75R 8P4R 1 8 2 7 3 6 4 5 C233 10uF 25V 1 2 RN19 75R 8P4R 1 8 2 7 3 6 4 5 RN3 22R 8P4R 1 8 2 7 3 6 4 5 C232 3300...

Page 50: ...1uF 6 MT8293 U15 MT8293 LQFP128 CVCC18 66 CGND18 65 CGND18 126 RX2 63 IOGND33 30 CVCC18 112 RX2 62 AVCC 61 AGND 64 AVCC 57 AGND 60 AGND 56 RX0 55 RX0 54 AGND 52 RXC 51 RXC 50 AVCC 49 Q11 108 SD1 73 SPDIF 70 IOGND33 78 Q10 109 MCLK 79 CI2CA 38 IOGND33 118 XTALVCC 86 REGVCC 87 IOVCC33 68 Q4 117 MUTE 67 RSVD 48 CVCC18 45 IOGND33 69 IOVCC33 107 IOGND33 97 Q3 121 IOVCC33 120 CGND18 113 IOGND33 106 Q7 1...

Page 51: ...4 15 R297 100R 6 L47 Bead_121_4A 8 NC R88 100R 6 C258 0 1uF 6 NC R131 0R 6 NC R124 0R 6 NC C72 4 7nF 6 1 2 R77 10k 6 R315 0R 6 NC R103 0R 6 NC R125 0R 6 NC R107 2k 6 D26 BAT54C R130 0R 6 NC R137 0R 6 NC R98 0R 6 NC R82 100R 6 R120 0R 6 NC R104 0R 6 NC R118 0R 6 NC C203 33pF 6 C73 0 01uF 6 1 2 R132 0R 6 NC R115 0R 6 NC R80 100R 6 R113 0R 6 NC C75 0 01uF 6 1 2 C201 0 1uF 6 NC R94 0R 6 NC D22 EZJZ0V8...

Page 52: ...CB71 0 1uF 6 Q10 2N3904 2 1 3 CE55 330uF 25V NC L20 2 2uH 8 R395 56R 6 C87 1uF 6 NC 1 2 C206 22uF 25V NC C209 10uF 16V NC R154 56R 6 L50 Bead_121_4A 8 NC R153 75R 6F R146 3 3k 6 R396 75R 6F Q34 2N3904 2 1 3 C204 100uF 16V NC L49 Bead_121_4A 8 R150 0R 6 R152 0R 6 U26 7805 NC GND 2 OUT 3 VIN 1 U18 FQ1216ME NC VTout 2 Vb 5V 3 SCL 4 SDA 5 AS 6 2ndIFout 11 CVBSout 12 VIF 5V 13 AFout 14 AF R 9 TH1 17 TH...

Page 53: ... 6 C104 330pF 6 1 2 C92 330pF 6 C99 330pF 6 NC L23 0R 6 D34 EZJZ0V800AA NC 1 2 C100 330pF 6 NC C98 330pF 6 1 2 FB7 0R 6 G G C Y CN2 S VIDEO RCA TEKCON_RCAJACK SJACK 1 2 3 4 5 7 6 8 9 10 C95 47nF 6 1 2 R158 75R 6F D31 EZJZ0V800AA NC 1 2 L25 0R 6 C94 330pF 6 1 2 L26 0R 6 FB5 0R 6 R159 0R 6 C96 330pF 6 C91 47nF 6 1 2 C93 330pF 6 R402 47K 6 NC D32 EZJZ0V800AA NC 1 2 R161 18R 6 R160 75R 6F R157 0R 6 C9...

Page 54: ...124 330pF 6 NC CE18 330uF 25v C123 15pF 6 1 2 D35 EZJZ0V800AA NC 1 2 R184 75R 6F Q11 2N3904 2 1 3 C115 330pF 6 NC R163 0R 6 R389 47k 6 NC C107 4 7nF 6 1 2 L27 0R 6 R178 100R 6 R169 47k 6 NC C125 330pF 6 NC C122 0 01uF 6 1 2 C238 0 1uF 6 NC 1 2 CB73 0 1uF 6 1 2 Q30 2N3906 2 1 3 R172 100R 6 R170 68R 6 C126 0 01uF 6 1 2 C119 330pF 6 NC C111 330pF 6 1 2 CE17 10uF 25V R176 68R 6 R167 56R 6 C114 330pF 6...

Page 55: ...221 0R 6 CE20 10uF 25V 1 2 R190 34 5K 6 CB78 0 1uF 6 CC0603 R411 3 3k 6 R406 20 6 R336 10K 6 NC L31 Bead_121_4A 8 RC0805 CB85 10pF 6 NC 1 2 R196 34 5K 6 CE135 10uF 25V CAR200 1 2 R337 10K 6 CB75 0 1uF 6 CC0603 R339 200R 6 CB87 0 1uF 6 1 2 R382 1k 6 Q28 2N3904 2 1 3 CB89 0 1uF 6 1 2 CB74 0 1uF 6 CC0603 R407 4 7k 6 CE35 10uF 25V CAR200 1 2 R230 1k 6 TP42 R199 33R 6 CE23 10uF 25V 1 2 R346 470R 6 R326...

Page 56: ...LVDS POWER HI LVDS POWER ON LO LVDS POWER OFF PROJECT E9T PV LVDS LOCATION LVDS VCC L33 L34 VCC 12V CE42 330uF 25V 1 2 C143 47uF 16V 1 2 C145 0 1uF 6 1 2 R244 1M 6 NC CB91 0 1uF 6 R237 10k 6 NC CE40 330uF 25V 1 2 CE41 330uF 25V CAR315 R239 0R 6 NC L33 Bead_121_4A 8 C246 0 1uF 6 R243 200k 6 R312 10k 6 NC R236 0R 6 NC QF3 2N7002 SOT23 2 1 3 C144 0 1uF 6 R238 10k 6 NC R241 100k 6 L34 Bead_121_4A 8 NC...

Page 57: ...246 10k 6 C178 180pF 6 C148 0 1uF 6 L38 Bead_121_4A 8 C151 0 1uF 6 R273 47k 6 R251 10k 6 CON2 4606 04 04P R 1 2 3 4 CE43 100uF 16V 1 2 L36 Bead_121_4A 8 C158 470pF 6 C184 180pF 6 C156 220nF 6 C160 0 1uF 6 L45 22uH C168 330nF 6 TP45 C150 330uF 25V C183 220nF 6 L40 Bead_121_4A 8 R271 10R 12 R267 1M 6 NC TFA9810 VDDA1 4 VSSA1 5 IN1P 2 IN1M 3 IN2P 15 IN2M 14 OUT2P 23 OUT1P 26 OUT1M 28 OUT2M 21 VDDP1 2...

Page 58: ...4 FB 6 R278 1k 6 D57 BAV99L 2 3 1 R282 9 1k 6 C192 0 1uF 6 NC L62 Bead_121_4A 8 R275 6 8k 6 C250 NC 10pF R285 0R 6 L71 FB 6 C193 0 1uF 6 NC C252 NC 10pF Q23 2N3906 2 1 3 C255 NC 10pF C191 0 1uF 6 NC R276 10k 6 C187 0 1uF 6 NC R413 1AFUSE 6 L68 FB 6 R279 2k 6 Q24 2N3906 2 1 3 D53 BAV99L 2 3 1 D55 BAV99L NC 2 3 1 D58 BAV99L NC 2 3 1 R334 10k 6 J1 HEADER 10pin 2mm 1 2 3 4 5 6 7 8 9 10 C257 NC 10pF C1...

Page 59: ... WN B B 01 Contents 1 1 Tuesday May 29 2007 B3A Key Board POWER MENU AUTO RIGHT LEFT Up Down SW2 TOUCH SWITCH 4P SW7 TOUCH SWITCH 4P SW3 TOUCH SWITCH 4P CN1 JST 8Pin PH2 0mm H 1 2 3 4 5 6 7 8 SW4 TOUCH SWITCH 4P PROJECT AT1922 SW1 TOUCH SWITCH 4P SW5 TOUCH SWITCH 4P SW6 TOUCH SWITCH 4P ...

Page 60: ...4 4 3 3 2 2 1 1 Title Size Document Number R ev Date Sheet o f IR BOARD B2A IR 1 1 Tuesday May 29 2007 green orange SEN1 1 2 3 PROJECT AT1922 1 H2 MTH276D126 CN1 4501 04 05P R 1 2 3 4 5 1 H1 MTH276D126 LED1 EL 209 2EGW A1 C A2 ...

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