Acer G225HQ Service Manual Download Page 50

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6. Level 2 Circuit Board and Standard Parts Replacement

6.1. Trouble Shooting Guide

No Display or display is unstable (Interface Board):

OSD shown when key pressed?

Yes

Follow instructions from OSD dialog

Keypad OK?

Yes

Screen is Blank and
Power LED is White.

Backlight turned

ON?

Scalar output

Data ?

Yes

Proceed to

“Check Power Board”

Yes

“Check LCD Module”

Proceed to

“Check Scalar”

Proceed to

“Check Control Board”

Summary of Contents for G225HQ

Page 1: ...J 11016 L1A 9J 11016 41A Applicable for All Regions Version 001 Date 2009 9 7 Notice For RO to input specific Legal Requirement in specific NS regarding to responsibility and liability statements First Edition Sept 2009 Copyright Acer Corporation 2009 All Right Reserved ...

Page 2: ...ication 20 3 9 Packing 22 4 Disassembly Assembly 23 4 1 Exploded View 23 4 2 Disassembly Assembly 25 5 Level 1 Cosmetic Appearance Alignment Service 35 5 1 Alignment procedure for function adjustment 35 5 2 Software Firmware Upgrade Process 38 5 3 EDID Upgrade Procedure 43 5 4 OSD Operation Guide 46 6 Level 2 Circuit Board and Standard Parts Replacement 50 6 1 Trouble Shooting Guide 50 6 2 Circuit...

Page 3: ...erform diagnostics tests troubleshoot problems and align the acer product 1 1 Trademark The following terms are trademarks of Acer Inc Acer Importance Only trained service personnel who are familiar with this Acer Product shall perform service or maintenance to it Before performing any maintenance or service the engineer MUST read the Safety Note ...

Page 4: ...nd meets all government safety requirements 2 Ensure that other persons are safe while you are servicing the product DO NOT perform any action that may cause a hazard to the customer or make the product unsafe 3 Use proper safety devices to ensure your personal safety 4 Always use approved tools and test equipment for servicing 5 Never assume the product s power is disconnected from the mains powe...

Page 5: ...ature items Specifications Remark Panel supplier module name LGD LM215WF1 TLA1 AUO M215HW01 TN Normally white Screen diagonal 21 5 W 495 5 H x 292 2 V Display Format 1920 H x 1080 V Panel Display information Pixel Pitch LGD 0 248 mm x 0 248 mm SEC 248 25 um x 248 25 um per one triad Viewing Angle Contrast Ratio 10 R L 170 degrees typ U D 160 degrees typ Analog interface with Scaling supported Yes ...

Page 6: ...Key function DDC function supported EDID ver 1 3 Yes DDC2B DDC CI support version 1 1 or later Yes DDC CI Audio speakers supported Yes Audio Jack input connector supported Yes Line in connector Earphone Jack Output connector supported No Microphone function supported No Mechanical Tilt base design Yes From 5 to 23 degree VESA wall mounting design Yes Mechanical Rotate design No Mechanical Lift bas...

Page 7: ...DPMS Off state 1 W LED OFF Inrush Current 110 VAC 220 VAC 30 A peak 60 A peak Cold start Earth Leakage Current 264 VAC 50Hz 3 5 mA Hi Pot 1 1500VAC 1 sec 2 Ground test 30A 1sec Without damage 0 1 ohm on line test in lab test Power Line Transient IEC1000 4 4 1KV IEC1000 4 5 Surge Common 2KV Differential 1KV CCFL operation range 90 264VAC LGD 3 8mA SEC 4 8mA Depends on panel source CCFL Frequency 90...

Page 8: ...ype Separate H V sync Positive Negative For 15 pin D sub Level Logic High 2 4V 5 5V Logic Low 0V 0 5V TTL level Refer to VESA VSIS Standard V1R1 Impedance Minimum 2 2KΩ pull down 10KΩ for application Sync Pulse Width SPW 0 7μs H SPW 1H V SPW Digital input Level 600mV for each differential line Impedance 50 Ohm TDR Scan needed for DVI cable and interface board Note 1 The pin assignment of 15 pin D ...

Page 9: ...1 TMDS RX2 13 Floating 2 TMDS RX2 14 5V Power 3 TMDS Ground 15 Ground Cable Detect 4 Floating 16 Hot Plug Detect 5 Floating 17 TMDS RX0 6 DDC Clock 18 TMDS RX0 7 DDC Data 19 TMDS Ground 8 Floating 20 Floating 9 TMDS RX1 21 Floating 10 TMDS RX1 22 TMDS Ground 11 TMDS Ground 23 TMDS Clock 12 Floating 24 TMDS Clock ...

Page 10: ...on Spec OK N A Remark Max support Pixel rate 173 MHz Both for analog and digital inputs Max Resolution 1920 x 1080 Both for analog and digital inputs Rise time Fall time 5 ms 50 of minimum pixel clock period 1920x1080 60Hz max support timing Settling Time after overshoot undershoot 5 final full scale value Refer to VESA VSIS Standard V1R1 ...

Page 11: ...Scan range Item Condition Spec OK N A Remark Horizontal 31 83 KHz Vertical 56 76 Hz HDMI supports 50Hz 3 2 5 Plug Play DDC2B DDC CI Support Item Condition Spec OK N A Remark DDC channel type DDC2B EDID Version 1 3 Refer to S W spec document to see the detailed EDID data definition DDC CI Version 1 1 or Later Refer to S W spec ...

Page 12: ...87 106 500 WSXGA 1680x1050 60Hz 2240 1089 65 290 59 954 146 250 UXGA 1600x1200 60Hz 2160x1250 75 000 60 000 162 000 1920x1080 60Hz 2576x1120 67 158 59 963 173 000 1920x1080 60Hz 2200x1125 67 500 60 000 148 500 1920x1080 60Hz 2080x1111 66 587 59 934 138 500 Note 1 Show Input Not Supported warning message When Vertical Frequency is over 76Hz or under 56Hz the display is Black and showing Input Not S...

Page 13: ... D 160 degrees typ 130 degrees min CIE coordinate of White 0 313 0 329 0 03 0 03 Display colors 16 7 Millions colors 6 bit Hi FRC AUO M215HW01 V0 V1 Item Condition Spec OK N A Remark Resolution Any input resolution modes which are under 1920x1080 1920x1080 Contrast ratio 600 min 1000 typ Test Condition Set Contrast at 50 Brightness at 100 Color at User preset Brightness At R G B saturated conditio...

Page 14: ...condensing Altitude Operating 0 3048m 10 000ft Without packing Non operating 0 12 192m 40 000ft With packing 3 3 5 Transportation Item Condition Spec OK N A Remark 1 Vibration Package Non Operating Test Specification 1 Frequency Hertz 5 250 HZ PSD Level 0 0054 G2 Hz 2 Grms 1 146 3 Sweep Time 30 minutes per Axis 4 Axes X Y Z 2 Unpackaged Vibration Unpackaged Non Operating Test Spectrum 20 Hz 0 0185...

Page 15: ...rk MTBF Prediction Refer to MIL 217F 60 000 Hours Excluding CCFL CCFL Life time At 25 2 under 7 0mA 40 000 Hours min See Note 4 Note 4 CCFL lifetime is determined as the time at which brightness of lamp is 50 The typical lifetime of CCFL is on the condition at 7 0mA lamp current 3 3 9 Audio performance Item Condition Spec OK N A Remark Preamp Power amp 1 Output power 1 Wrms CH 1KHz 2 THD 1W 1 3 S ...

Page 16: ...RC AUO M215HW01 Item Condition Spec OK N A Remark LCD Panel Supplier AUO Panel type of Supplier AUO M215HW01 Screen Diagonal 546 86mm 21 5 Display area Unit mm 476 64 H x 268 11 V Physical Size Unit mm 495 6 H x 292 2 V x 16 35 D Weight Unit gram 2188 typ Technology TN type Pixel pitch Unit um 248 25 H x248 25 W Per one triad Pixel arrangement R G B vertical stripe Display mode Normally White Supp...

Page 17: ...emark Viewing Angle degree degree Horizontal Right CR 10 Left 150 170 degree degree Vertical Up CR 10 Down 140 160 Contrast ratio Normal Direction 600 1000 msec Rising Falling 5 8 Color Chromaticity Coordinates CIE Red x 0 618 0 648 0 678 Red y 0 309 0 339 0 369 Green x 0 252 0 282 0 312 Green y 0 573 0 603 0 633 Blue x 0 113 0 143 0 173 Blue y 0 040 0 070 0 100 Color Coordinates CIE White White x...

Page 18: ...ol 9300K Warm 6500K User Separate R G B adjustment OSD Position OSD Horizontal position OSD Vertical position OSD Time From 10 sec to 120 sec OSD Lock Language EMEA Non EMEA languages for Asia Europe Version Recall Recall All Mode ACER Empower Mode Input Select D sub DVI HDMI Wide Mode Full Aspect Sharpness Display Information For input timing Volume Mute Hot key for Auto Hot key for Contrast Hot ...

Page 19: ...ark Flammability ABS 94 HB Heat deflection To ABS 65 UV stability ABS Delta E 8 0 Resin ABS Texture Uc CLUM R BASE AT IM D02 Bezel AT IM D01 Polish 10000 CLUM F BTN OSD AT IM D01 BTN PWR Polish 10000 Color BEZEL DT02A UC DB27A 3 6 4 Carton Item Condition Spec OK N A Remark Color Kraft Material B Flute Compression strength 200KGF Burst Strength 16 KGF cm2 Stacked quantity 4 Layers Vertical 3 7 Pall...

Page 20: ... Dimension mm L W H Carton External Dimension mm L W H 134 x 560 x 440 142x568x452 3 8 Certification Item Condition Spec OK N A Remark Environment Green design API Doc 715 C49 ISO14000 Requirement Blue Angel German Standard E 2000 Switzerland EPA USA Standard TCO 99 TCO 03 MPR2 Green Mark PC Monitor Microsoft Windows PC98 99 DPMS VESA DDC 2B Version 1 3 USB External Safety UL USA UL60950 3rd editi...

Page 21: ...SO IEC60950 EMC CE Mark 89 336 EEC FCC USA FCC Part 15 B EN55022 Class B CISPR 22 Class B VCCI Japan VCCI Class B BSMI Taiwan CNS 13438 C Tick Australia AS NZS CISPR22 X Ray Requirement DHHS 21 CFR USA X Ray Standard DNHW PTB German X Ray standard Ergonomics TUV Ergo ISO 13406 2 prEN50279 ...

Page 22: ... 22 3 9 Packing ...

Page 23: ... 23 4 Disassembly Assembly 4 1 Exploded View ...

Page 24: ... 24 ...

Page 25: ...s materials as bellow 1 Press fixture 2 working table 3 Screw driver 4 knife 1 5 Glove 6 Cleaning cloth 7 ESD protection ite m picture Operation Tool Notes 1 Stick the big Al tape to panel which can protect the Light wire The tape must cover the connect of the wire 2 Check and put CLM F on the cushion carefully 3 Assemble the panel on CLM F 4 Assembly the Ctrl board to CLM F ...

Page 26: ... position reference on the picture then the lock 4 screws to fasten it Screw driver 7 Assemble the LVDS to the I F the correct position reference on the picture Without the gap within NOTE Circuit boards 10 cm has been highlighted with the yellow rectangle as above image shows Please detach the Circuit boards and follow local regulations for disposal 8 Assemble the PCBA to Main SHD ...

Page 27: ...ake sure the wire doesn t walk across the red area 12 Scan for fooling PC Card go with panel 13 Fasten the LVDS to panel and fix the Main BKT to CLM F The BKT must fixed into the clip of the BZL 14 Stick three Al foils on the right and under between panel and Main BTK Only for the monitor with LGD panel which has two lamps 接地螺丝 2 1 4 3 5 ...

Page 28: ...ter wire one by one Keep all wires in 17 Stick two acetic tapes to fix the wire one by one as the picture The wires must not over the edge of the Panel 18 Insect the speaker wire to the right position of the power board Then stick a acetic tape to fixing the wire as the picture Make sure the wire between the mark on the main SHD and the surface of the main SHD ...

Page 29: ... tape to fixing the speaker wire as the picture 20 Lock screws of side on Main Chassis with 2 4 based on DVI Screw driver Attention the order by one to four 21 Fix the big Al tape to panel 22 Assemble the Rear Cover 3 4 1 2 ...

Page 30: ... cover Connect the D SUB wire to the D SUB connect Screw driver 24 Check and put CLM F abs on working table the carefully Lock 4 screws inside the hinge Screw driver 25 Lock 4 screws to RC And then cover the CLM of L and R Screw driver ...

Page 31: ...ng table 3 Screw driver 4 Knife 1 5 Glove 6 Cleaning cloth 7 ESD protection ite m picture Operation Tool Notes 1 Disassemble the stand 4 screws Take off the stand then unlock the screw of rear cover Screw driver Kick the board first 2 disassembly the bezel from the monitor notice the disassembly order 1 Left 1 parts of bezel 2 Top 2 parts of bezel 3 Bottom 3 parts of bezel 4 Right 4 parts of bezel...

Page 32: ... 32 4 Tear down the Mylar 5 Tear out the acetic tapes 6 Unlock the wires 7 Disassembled the SHD shielding 2 4 screw the monitor with DVI have four Screw driver 3 4 1 2 ...

Page 33: ... soc shielding 10 Unlock the FFC wire 11 Disassembled the PCBA shielding 6 screws Screw driver NOTE Circuit boards 10 cm has been highlighted with the yellow rectangle as above image shows Please detach the Circuit boards and follow local regulations for disposal ...

Page 34: ... 34 12 Disassembled the SPK shielding 4 screws Screw driver 13 Get off the panel from the bezel 14 Get off the big tap from the tape 15 Disassemble the control board Screw driver ...

Page 35: ...t source 1 Enter factory setting area press Empowering and then press SOFTPOWER 2 Check the settings to following values Contrast 50 Brightness 77 Color Warm Language English Then turn off the monitor power 3 Turn on power enter user area Figure 1 Preset Timing modes list Mode Resolution active dot Resolution total dot Horizontal Frequency KHz Vertical Frequency Hz Nominal Pixel Clock MHz 640x480 ...

Page 36: ...itor 3 Move cursor into Burn in Mode tag and select On to enable burn in mode 4 Close OSD menu then press Auto button for auto color adjustment This procedure will get optimal gain offset clamp values 5 Checking if the picture is ok or reject this monitor and check its circuit board or wire cable connection 5 1 4 Color temperature adjustment 1 Setup input timing to any preset modes pattern 41 full...

Page 37: ...r 1 Setup a PC with DDC card 2 Connect PC to monitor with a D sub signal cable 3 Please refer to the Q212 for the correct EDID file 4 Runs the writing program to write the analog EDID data into EEPROM for analog input ie 15 pin D sub 5 Repeat step 4 and write the digital EDID data into EEPROM for DVI D input ie 24 pin DVI D 6 Read both EEPROM data and confirm it to match with the Q212 definition N...

Page 38: ...Printer cable with one male connector and another female connector x 1 4 PC or Notebook with parallel printer port x1 Connect to target monitor VGA signal input from 15pin D sub cable of PC or NB Connect ISP board and PC with printer port cable Check the Jumpers on the ISP Circuit Board make sure J5 J6 J7 J8 are set at ping 1 2 ...

Page 39: ...are Upgrade Procedure Step 1 Un zip Port95nt and install into your computer Step 2 Un zip ISP application tool RTDTool Step 3 Select IIC and RTD 2122 type then press ISP button to execute firmware program application ...

Page 40: ...n file from your computer Step 5 Select Erase option and execute lightning button first and then select Auto option and execute lightning button to start upgrade firmware to the monitor Note you can change program speed bar to meet your equipment speed if program firmware fail in Advanced Setting ...

Page 41: ...IF the monitor without signal input has Burn In pattern As the following figure Press E key Power key at the same time to exit Burn in mode factory mode and soft power key off on restart the monitor ENTER and RIGHT to Burn In Off ...

Page 42: ...X1024 75Hz 1 Press the OSD setting 2 Choose On in Burn In 3 Change Color temperature to user mode Choose Panel Type to press Enter 4 Choose the Panel Type you want LGD or SEC and press Enter 5 Check OSD to make sure the panel type is match with your panel ...

Page 43: ... 43 5 3 EDID Upgrade Procedure Step 1 Run the program Q EDID V012 exe when the UI popped up Note If VGA choose 128bytes and HDMI choose 256bytes ...

Page 44: ... 44 Step 2 Click Open File and select VGA or HDMI EDID file v Step 3 If load file is successful it shows Open EDID Table OK And then Click Write EDID button to update EDID ...

Page 45: ... 45 Step 4 If write EDID is successful it shows Write EDID OK And then Click Read EDID button to check if successful or not Step 5 If read EDID is successful it shows Read EDID OK ...

Page 46: ... 46 5 4 OSD Operation Guide ...

Page 47: ... 47 ...

Page 48: ... 48 ...

Page 49: ... 49 ...

Page 50: ...y is unstable Interface Board OSD shown when key pressed No Yes Follow instructions from OSD dialog Keypad OK Yes No Screen is Blank and Power LED is White Backlight turned ON Scalar output Data Yes Proceed to Check Power Board No Yes Check LCD Module No Proceed to Check Scalar Proceed to Check Control Board ...

Page 51: ...ecking Contorl Board Working Yes Yes No Re plug the control wire then retry Traces OK No Replace the Control Board then retry Components to Control board OK Yes No Replace the components then retry Replace a new Control board Yes ...

Page 52: ...O CapacitorsofCrystal havedamaged Checktheremaining circuits Measurethesignalpairs onLVDSdataoutputand clockfromScalar IsthecorrectSinusoidal waveappearedonCrystal YES Arethepixeloutput correct Arethesignalspresented onDSubconnector Scalarfailed Powerorthegroundpins hasbadcontacts DSUBConnector or PCfailure Badwiringbetween DSUBandScalar NO NO YES YES NO ...

Page 53: ...ector YES YES YES NO OK YES NO LCDm odulefail Todisplay im age Connectionbetween LVDScableand LCMconnector OK W hiteScreen NoPicture Lam pconnectorOK NO NO YES Connectionbetween LVDScableand LVDSconnector OK BadConnection orconnector LVDScable NO BadConnection orconnector LVDScable BadConnection orconnector YES YES YES NO Lam pwire Inverterboard failed YES NO IsQ65V CheckQ6 Check U7 Is U7 5V ...

Page 54: ...heck F601 Q601 R615 OK Yes Replace F601 Q601 R615 No Check I F BD Yes 5V ok Yes Check CN701 pin2 BL ON is Hi Yes Check CN701 pin1 BRT ADJ exist Yes Check I F BD Yes Replace IC801 No Yes Replace Q808 Q810 T801 T802 No Check Panel Yes No No Check D701 D702 OK Replace D701 D702 No Check Q808 Q810 T801 T802 OK Check IC801 OK ...

Page 55: ...o Yes Was Audio VDD existed Audio do not work No Check VOL_ON Yes Check VOL_ADJ Plug Audio input No Check MCU send VOL_ON control signal or not No Adjust volume control switch to normal Yes Was CN551 plugged No Plug CN551 Yes Was Speaker plugged No Plug Speaker Yes Replace IC551 ...

Page 56: ... ADM DDC CI software and also it has ACM function to let the monitor contrast ratio up to 50000 1 It also offers OSD Menu for users to control the adjustable items and get some information about this monitor II Block diagram G225HQ consists of a main body and a stand base The main body contains a AUO LGD TFT LCD module with 4 CCFL lamps a power board includes AC DC DC DC inverter and panel power s...

Page 57: ...tion data and user preset timings b IC introduction 1 Realtek2555LH SCALER IC Realtek2555LH series products are all in one LCD monitor controller with analog RGB DVI and video inputs supporting 1920x1080 60Hz and integrate Realtek high performance ADC scaling engine LVDS Tx and so on Moreover all products are pin compatible in QFN 48 pin package to save cost and make the design easier The RTD also...

Page 58: ...e EEPROM data indirectly through the SDA and SCL channels of DVI and D sub IIC communication The digital and analog DDC data are stored in two 24C02s EEPROM A 2 Power board diagram EM IFilter Rectifierand filter Isolation power transformer Rectifierand filter Invertercircuit PW Mcontrller Switching element 5VOutput Feedback Isolation Rectifierand filter LDOregulator Fig 1 1 EMI Filter This circuit...

Page 59: ...e CATEGORY DESCRIPTION ACER PART NO LCD LCDM21 5W LM215WF1 TLB1 LGD P LK 21508 002 Board BOARD PCBA IF BD DUAL A L MI G225HQ 55 LJA0Q 001 BOARD PCBA SPS BD AUDIO MI G225HQ 55 LJA0Q 005 BOARD PCBA CTRL BD MI G225HQ 55 LJ80Q 006 Cable ...

Page 60: ...A250V EUR 1 8M 27 LBJ0Q 001 CABLE WIRE 10 11 P 1007 24 X223HQ 50 LGQ0Q 004 CABLE FFC LVDS 30P 16TH NO S G225HQ 50 LJ80Q 002 CABLE FFC WIRE 7P CTRL BD G205H 50 LJ80Q 001 CABLE CABLE SIGNAL C H V OD_5 5 1 8M 50 LBJ0Q 002 Assembly ...

Page 61: ...Y ASSY BASE W P G225H 60 LJ80Q 008 CASE COVER BRA CKET ASSEMBLY ASSY RC DUAL LPL G225HQ 60 LJ80Q 005 CASE COVER BRA CKET ASSEMBLY ASSY CLMN ABS DB27A G225H 60 LJ80Q 007 CASE COVER BRA CKET ASSEMBLY ASSY BZL DB27A G225HQ 60 LJ80Q 001 ...

Page 62: ... 62 Appendix 1 Screw List Torque A STANDARD SCREW TORQUE QCS ...

Page 63: ... 63 ...

Page 64: ... 64 B STANDARD SCREW TORQUE QZB QMX ...

Page 65: ... 65 Appendix 2 Physical Dimension Front View and Side view Fig 1 Physical Dimension Front View and Side view ...

Page 66: ... 66 ...

Page 67: ... 67 Appendix 3 I F Board Please see the next page ...

Page 68: ... 3 U9 spec Vds 30V Vgs 12V Id 3 5A when ambient temp 70 degre S 2 G 1 Reset circuit for CMO L03 over rush current 4H 0K601 S01 C69 0 1U K TP9 R61 0 J TP15 C66 22U 25V 1 2 TP16 OP1 C68 22U 25V 1 2 H1 HOLE V8 1 2 3 4 5 6 7 8 9 TP10 R62 0 J OP2 R30 150 J J7 2KK2085030 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 G1 G1 G2 G2 21 21 22 22 23 23 24...

Page 69: ...C14 0 047U 16V D N 4 BAV70 A1 J A2 R 1 75 J R305 NC 10K J R19 10K J C16 47P J R17 100 J R 2 75 J C15 0 047U 16V TP38 D 4 PZU6 2B2 A K C17 47P J C21 22P J R 3 75 J D 2 PZU6 2B2 A K J 1 D sub 15 1 7 2 8 3 9 4 10 5 11 12 13 14 15 6 G1 G2 L2 Z60 T65 D N 2 BAV99 A J K R 4 100 J TP41 R67 10K R 5 12K J C 2 0 1U Z C8 0 1U Z D 3 PZU6 2B2 A K R100 0 J L1 Z60 R 9 56 J TP39 C 9 0 047U 16V C20 12P J R68 10K C ...

Page 70: ...repared By Model Name PCB P N PCB Rev Qisda Corporation OE M ODM Model Name Doc 1 5 Di o Chi ang A l l en PC Lee S03 Ev o nne Chan Si z e 0 M on d a y F e b r u a r y 09 2 009 OEM 0824 C84 from 10U 100U 0824 Add C301 0824 Add R301 R302 0912 L4 R100 0912 MTV 512 RTD 2120 1228 Add R300 R303 R304 C300 Q7 0131 Add D9 History ...

Page 71: ...r u a r y 0 9 20 0 9 O E M Louis HDCP 0116 Hot Plug ChungHao ESD 0131 DVI INPUT 4H 0K401 S01 TP69 D N6 BAV99 A J K D 9 BZV5 5C6V2 A K DN1 2 BAV99 A J K R117 10 R3 04 47 J D1 1 PZU6 2B2 A K TP48 R3 06 10K J D1 0 PZU6 2B2 A K R110 10 C22 0 1 U Z DN1 3 BAV99 A J K TP49 TP50 C2 4 0 1 U Z TP51 TP52 C2 3 0 1 U Z J2 2K22009024 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 ...

Page 72: ... Name PCB P N PCB Rev Qisda Corporation O E M O DM Model Name D o c 3 6 Blight Hsu A llen P C Lee S 0 1 Lo uis Yang S i z e 0 M o n d a y F e b r u a r y 0 9 2 0 0 9 OEM giachin 2525L 0719 Scalar Option LH R27 R29 C39 LR R29 C39 R27 Option LH R24 R26 C38 LR R26 C38 R24 Option LH R25 1k ohm LR R25 6 2k ohm 4H 0K401 S01 C39 0 1U Z C46 47U 25V 1 2 R 91 1 K J R24 0 J U8 RTD2545LH LF V1 REXT 1 V2 RX1P ...

Page 73: ...ve Audio Function R213 R301 C101 R28 Open 4H 0K401 S01 C63 0 1U C101 1 U K R57 NC 1M R 2 0 3 4 7K J R284 7K J C64 10P J R214 4 7K J R55 4 7K J R56 4 7K J L12 Z120 R101 10K J C62 0 1U K R53 4 7K J Y 1 24MHZ R 2 0 0 4 7K J R 2 1 3 4 7K J U4 AT24C16N 10SI 1 8 A0 1 A1 2 A2 3 GND 4 VCC 8 WP 7 SCL 6 SDA 5 R302 4 7K J U10 RTD2120L LF DA5 P5 5 1 DA6 P5 6 2 DA7 P5 7 3 DA0 P5 0 44 DA1 P5 1 45 DA2 P5 2 46 DA...

Page 74: ... R105 1 07 R219 R216 R218 R220 223 B V J3 X J6 Canael GND to GND bead 4H 0K401 S01 EMI solution Del R219 0 ohm Add L4 0 ohm TP31 TP36 C48 0 1U K Z D7 U D Z S 6 2 B A K TP33 J6 2K62095107 1 2 3 4 5 6 7 R216 0 L4 Z220 R223 0 J J5 2K61185110 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 C53 0 1U Z Z D8 U D Z S 6 2 B A K C49 0 1U K C54 0 1U Z Q4 2N3906S C E B TP34 TP37 R217 0 J R43 150 Q5 2N3906S C E B R2...

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