Lenovo L2021 WA Service Manual Download Page 17

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Lenovo Service Manual L2021W

5.4 Software Flow Chart

------Just for your reference.

Start

Initial_MCU

Check if DataBuffer Is blank

Check if Sum is changed ?

To Write default values

Read parameter_from Buffer

PowerHandler

Init_GlobalVariables

Initial_MCU Device

while

InputTiming

ModeHandler

MenuHandler

DebugHandler

if standby mode?

Brightness

Contrast

Language

InputType

InputTimingStableCounter

OsdCounter

PowerDownCounter

LED turn-on

Show power on logo

if factory mode?

No signal message

UnsupportModeFlag

END

OSD Menu

Software Flow Chart

InputTiming

Phaes/Frequency

Image setup

Color

Enter factory mode OSD

Summary of Contents for L2021 WA

Page 1: ...Lenovo Service Manual L2021W 1 联想显示器维修手册 Brand Lenovo Model L2021 Wide L2021WA ...

Page 2: ... Version Release Date Revision History Model TPV Model No Editors Redactor A00 May 15 2010 Initial Release L2021W TAASRJEYXAG1HNJ TPV BJ Rain A01 Aug 30 2011 Update Part 9 L2021W L2021WA TAASRJEYXAG1HNJ TAAMRJEYXAG1HNJ TAASRJEYXAG1H2J TPV BJ Rain ...

Page 3: ...ctor pin Assignment 14 5 Block Diagram 15 5 1 LCD Block Diagram 15 5 2 MainBoard Block Diagram 15 5 3 Power Inverter Board Block Diagram 16 5 4 Software Flow Chart 17 6 Circuit Schematic 18 6 1 Main Board 715G3327 1 18 6 2 Power Board715G4174 2 23 6 3 Inverter part 24 6 4 Key Board715G3248 715G3249 25 7 Explore Views 26 8 PCB Layout 27 8 1 MainBoard 715G3327 1 27 8 2 PowerBoard 715G4174 29 8 3 Key...

Page 4: ...ve DVI Digital Interface 150mV 1200mV Separate Sync H V TTL H Frequency 30kHz 80kHz V Frequency 60Hz 75Hz Input Connector D Sub 15pin DVI 24pin Dot Clock 160MHz Plug Play VESA DDC CI Power Consumption ON Mode 27W Power Saving Mode 1W at 100Vac 240Vac Switch OFF 0 5W Power Source 90 264VAC 47 63Hz 1 5A Max supply current Environmental Considerations Operating Temp 0 to 40 C Storage Temp 20 to 60 C ...

Page 5: ...modes Display modes Refresh rate 640 350 70Hz 640 480 60Hz 72Hz 75Hz 720 400 70Hz 800 600 56Hz 60Hz 72Hz 75Hz 832 624 75Hz 1024 768 60Hz 70Hz 75Hz 1152 864 75Hz 1280 768 60Hz 1280 1024 60Hz 70Hz 75Hz 1366 768 60Hz 1440 900 60Hz 75Hz 1600 900 60Hz 75Hz ...

Page 6: ...he video card of the PC to the monitor Press the power button to turn on the monitor the power indicator will light up Press the power button to turn the monitor on or off The other control buttons are located at front panel of the monitor By changing these settings the picture can be adjusted to your personal preferences 2 2 Control Buttons ...

Page 7: ...ue of bar or move to last item of menu 3 Brightness If there is no any OSD Direct access to Brightness Increase adjusting OSD it will increase current value of bar or move to next item of menu 4 Menu Enter OK Active main menu while no OSD display enter next level on main menu or sub menu status or enter last level on adjustment bar Continued pressing 10 seconds will lock menu or un lock menu 5 Pow...

Page 8: ...Lenovo Service Manual L2021W 8 ...

Page 9: ...Lenovo Service Manual L2021W 9 ...

Page 10: ...Lenovo Service Manual L2021W 10 ...

Page 11: ...tor layout 1 5 6 10 11 15 3 2 DVI Interface description Pin No Description Pin No Description 1 TMDS Data 2 13 TMDS Data 3 2 TMDS Data 2 14 5V Power 3 TMDS Data 2 4 Shied 15 To detect signal cable connected 4 TMDS Data 4 16 Hot Plug Detect 5 TMDS Data 4 17 TMDS Data 0 6 DDC Clock 18 TMDS Data 0 7 DDC Data 19 TMDS Data 0 5 Shield 8 Analog Vertical Sync 20 TMDS Data 5 9 TMDS Data 1 21 TMDS Data 5 10...

Page 12: ...LTM200LT03 20 0 inch wide color TFT LCD module this module supports 1600 900 mode and displays up to 16 7 millions colors This model is composed of a TFT LCD panel a driver circuit and a back light unit 2CCFLs 4 1 General Specifications 4 2 Absolute Maximum Ratings ...

Page 13: ...Lenovo Service Manual L2021W 13 4 3 Electrical Characteristics a TFT LCD module b Backlight unit ...

Page 14: ...Lenovo Service Manual L2021W 14 4 4 Panel Block Diagroam 4 5 LVDS Connector pin Assignment ...

Page 15: ...CU U401 FLASH ROM M24C16 U403 NC Key Board Control CN402 D Sub Connector CN301 DVI Connector CN302 SDA SCL H sync V sync DVI_SDA DVI_SCL DB15_SDA DB15_SCL Scalar IC RTD2525 Signal access U501 Voltage converter 5V 5V 3 3V 1 8V DC AC inverter AC DC 5V 12V Power Board Main Board Key board Computer VGA Computer DVI 2 CCFL backlight Panel LVDS AC supply 90V 264V LCD Block Diagram Input signal ...

Page 16: ...IC PWM IC901 12V Rectifier 5V Rectifier 12V 5V Sense resistor Vcc Rectifier regulating Sampling PhotoCoupler Vcc Open Lamp Protection 12V DC IC Power Supply Converter DC AC Transformer T801 High Voltage Output Resonance NET Switching MOS Q802 AM9945 AC input 100 240V 2 CCFL PWM Control IC IC801 TL494 Current Sampling Power part Inverter part ...

Page 17: ...erHandler Init_GlobalVariables Initial_MCU Device while InputTiming ModeHandler MenuHandler DebugHandler if standby mode Brightness Contrast Language InputType InputTimingStableCounter OsdCounter PowerDownCounter LED turn on Show power on logo if factory mode No signal message UnsupportModeFlag END OSD Menu Software Flow Chart InputTiming Phaes Frequency Image setup Color O i Enter factory mode OS...

Page 18: ...319 10R 1 16W RTD_H 5 VGA_R VGA_B HPD_CTL DDC2_SCL CN301 DB15 1 6 2 7 3 8 4 9 5 11 12 13 14 15 10 17 16 FB302 19R BEAD 1 2 C310 5pF 50V FB301 19R BEAD 1 2 D109 BAT54C 3 1 2 DSUB_V H_Sy nc R428 22R 1 10W 5 U107 AZC199 04S 1 2 3 4 5 6 I O1 GND I O2 I O3 VDD I O4 R318 10R 1 16W RX1P 5 R322 10R 1 16W RXCP 5 C301 0 047uF VGA_G VGA_B R324 10R 1 16W H_Sy nc R320 10R 1 16W 2007 02 06 add for EMI RTD_G RX2...

Page 19: ...2 BenQ G920HD B 2 6 Monday March 30 2009 715G3327 1 称爹 2 POWER G3327 1 X X 1 081127 OEM MODEL Size Rev Date Sheet of TPV MODEL PCB NAME 称爹 T P V Top Victory Electronics Co Ltd Key Component 絬隔瓜絪腹 C210 0 1uF 16V POWER_KEY R208 120R 1 16W Mute 4 BKLT EN ZD201 NC UDZSNP5 6B 1 2 07 01 10 change to Elite BKLT VBRI C205 0 1uF 16V KEY0 4 Q205 MMBT3906 1 2 3 Q204 MMBT3906 1 2 3 R210 10K 1 16W C202 U20...

Page 20: ... to 1K DSUB_V1 2 2007 1 15 change from 4 7K to 2 2K VCC3 DSUB_CONNECT CRYSTAR_OUT 06 11 24 ADD D403 R423 NC POWER_KEY R422 NC R405 NC 4K7 1 16W 5 CMVCC C401 10pF R420 NC R444 4K7 1 16W MCU_VCC_S 2007 01 11 ADD DDC1_SDA 3 C410 0 1uF 16V PANEL_ID 2 Closed to MCU IICSCL R442 100R 1 16W DSUB_5V CRYSTAR_OUT 5 POWER_KEY Volume 2 R401 3 9K OHM 1 1 16W 3 CBPCRRHBFQ1 1 2 BenQ G920HD B 4 6 Monday March 30 2...

Page 21: ...nge to Elite RXE0 RXOC LVDS_E1 LVDS_O7 LVDS_E5 1 8AVCC RTD_G 3 C506 0 1uF 16V RXO3 RX2N 3 RXE2 BJT_B RTD_DDCSCL RXO0 U501 RTD2525LH GR 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 36 35 34 33 32 31 30 29 28 27 26 25 48 47 46 45 44 43 42 41 40 39 38 37 V1 REXT V2 RX1P V3 RX1N V4 RX0P V5 RX0N V6 RXCP V7 RXCN AVS AHS ADC_GND B B G G R R ADC_VDD BJT_B VCCK PGND TXE3 TXE3 TXE2 TXE2 TX...

Page 22: ...Q602 MMBT3906 1 2 3 LVDS_E1 RXE1 LVDS_O2 RXE0 LVDS_E6 07 01 04 Add R606 NC RXO0 RXE1 RXEC RXEC FB601 120Ω 1 RXO2 RXO0 RXE3 RXO3 LVDS_O9 RXE3 LVDS_E0 C604 47UF25V LVDS_O3 RXOC LVDS_O5 LVDS_E3 RXOC RXE1 RXEC RXO1 LVDS_O2 R603 NC CBPCRRHBFQ1 1 2 BenQ G920HD B 6 6 Monday March 30 2009 715G3327 1 称爹 6 OUTPUT G3327 1 X X 1 081127 OEM MODEL Size Rev Date Sheet of TPV MODEL PCB NAME 称爹 T P V Top Victory E...

Page 23: ...70pF 25V t NR901 NTCR IC903 AZ431AZ AE1 C936 0 47UF 25V R918 100 OHM 1 4W Q903 PMBS3904 C912 1000PF500V C918 680UF25V R901 680K OHM 1 4W IC901 LD7552BPS 1 2 3 4 5 6 7 8 GND COMP VCC RT NC CS VCC OUT C928 0 01uF C917 680UF25V R904 300K OHM 1 4W BD901 KBP208G 2 1 3 4 R906 NC CN902 Wire Harness 1 2 3 4 5 6 7 8 9 10 11 12 13 ZD905 RLZ18B 1 2 R902 680K OHM 1 4W D903 LL4148 ZD902 RLZ13B 1 2 C900 0 0022U...

Page 24: ... RK7002 R851 5 6KOHM 1 1 10W D812 LL4148 R826 1K 1 8W R850 22R 1 8W R827 1K 1 10W 1 D806 LL4148 Wednesday Nov 12 2008 R822 1K 1 8W R801 1K5 1 10W 1 D810 NC Q808 PDTA144WK DIM R832 10K 1 10W 1 R861 NC R864 NC C839 1500PF 50V D805 LL4148 R804 100R 1 8W D811 NC C834 0 1uF 25V R820 10K 1 10W 1 C821 0 1uF 25V C801 18pF 6KV C819 0 0022uF R865 NC C838 1500PF 50V R841 68K OHM 1 1 10W C842 0 1uF 50V R862 1...

Page 25: ...ZD008 MM3Z5V6B SGND MENU 3 R004 2K 1 10W 1 C003 NC SGND RIGHT SGND ZD006 NC C001 NC LBADC1 AUTO C004 NC R001 2 K 1 10W 1 ZD010 MM3Z5V6B SGND 3 SGND LBADC2 SGND LEFT ZD004 NC C005 NC LED_RED SGND LBADC1 DC_POWERON ZD001 MM3Z5V6B ZD003 NC MM3Z5V6B LED001 LED 3 4 1 2 SGND R005 0R05 1 16W CN002 CONN 1 2 3 4 ZD002 MM3Z5V6B LBADC2 POWER LED_GRN CN001 CONN 1 2 3 4 5 6 Power ...

Page 26: ...Lenovo Service Manual L2021W 26 7 Explore Views ...

Page 27: ...Lenovo Service Manual L2021W 27 8 PCB Layout 8 1 MainBoard 715G3327 1 ...

Page 28: ...Lenovo Service Manual L2021W 28 ...

Page 29: ...Lenovo Service Manual L2021W 29 8 2 PowerBoard 715G4174 ...

Page 30: ...Lenovo Service Manual L2021W 30 ...

Page 31: ...Lenovo Service Manual L2021W 31 8 3 KeyBoard 715G4138 K01 715G4139 K01 ...

Page 32: ...zer 7 Service Manual 8 User Manual 9 repair tools etc 9 2 Disassembly SOP 1 Precaution Please read the precautions as follows to prevent any damages to the LCD Monitor Make sure all power connection is removed Be sure that the LCD Monitor is in power off status Prepare soft cloth and sponge as working platform to place LCD monitor horizontally Hold LCD by the side carefully and DON T touch or pres...

Page 33: ...Lenovo Service Manual L2021W 33 2 appropriate tools select the appropriate tools for disassembly and re assembly Phillips screwdriver spacer screwdriver C D Disassembly Tool Gloves or soft cloth ...

Page 34: ...ssembly SOP 1 Remove the stand assy Starting from the back of the monitor Lift the small back cover After pull up the small back cover Removed screws 3 Separated the stand assy 2 Remove the Back cover with Gloves or soft cloth 向外提起 Pull up ...

Page 35: ...Lenovo Service Manual L2021W 35 Remove the Lamp connector Remove screws 4 3 Remove the boards ...

Page 36: ...Lenovo Service Manual L2021W 36 ...

Page 37: ...ture is normal Please reinsert and make sure the AC 100 240V is normal Reinsert or check the power section Check 5V CN201 3 3V U201 2 Q401 1 8V Q501 Panel Vcc Q601 Check X401 waveform Replace U401 U501 Replace X401 OK NG Check replace CN201 U201 Q401 Q501 Q502 Q601 Q602 NG NG NG OK OK Check flow chart For the no power ...

Page 38: ...e Check U201 Vout 3 3V Q501 out 1 8V Replace signal wire check X401 waveform replaceU201 Q401 Q501 Q502 around device replace X401 Check CN101 HS VS Check U401 out Check Correspondent component OK NG NG NG NG OK OK OK Replace U501 Updata soft data OK NG Check RGB HV singal Check singal input 75Ω Check U103 U107 NG OK ...

Page 39: ...lace Panel White screen Measure Q602 base is low level Check Q601 5V Or CN301 solder Check around device Check X401 waveform Check U401 U501 Check flow chart For the white screen Replace X401 Check around device Updata soft Replace U401 U501 NG NG NG NG OK OK OK OK ...

Page 40: ...of IC901 3pin check component R904 R932 Check T901 1 3 out Vcc Check D901 R909 C908 Check IC901 drive out Check MOS Q901pin G D Check replace IC901 Check R910 R938 Q901 T901pri Around component Check T901sub rectified out 5V 12V Check rectified diode D906 D908 fiter capacitor Check open load Chech opto couple IC902 IC903 OK NG OK OK OK OK OK NG NG NG NG NG NG Power Board No Power 5V 12V ...

Page 41: ...e 12V Return check Power Check main board After Power off check Q804 Q805 R804 C825 Check IC801 6pin RT waveform Check around component Replace IC801 Check IC801 out9 10pin Check Q802 waveform Check T801 out voltage Check feedback circuit Chwck connecter Check Replace C801 C803 Check around component Replace device OK NG OK OK OK OK OK OK OK NG NG NG NG NG NG NG Check IC801 12pin 12V pinRT wavefor...

Page 42: ..._v0 01_Eng H00 U501 056G 562201 IC RTD2545LH GR QFN 48 CBPCARJG1J1 G3327 1 X X 2 090407 FOR L2021WA Step1 Connection 1 Connect USB cable to the PC USB port and the ISP tool 715GT089 B 2 Will be the Monitor VGA cable to connect ISP tool 3 ISP tool card connection as shown below Check flow chart For the key board OSD is unstable or not working Is Key Pad Board connecting normally Is Button Switch no...

Page 43: ...Lenovo Service Manual L2021W 43 Step2 Installing driver software 1 To install the USB driver software mstar ISP Driver3 DB07 6 XP driver 2 Installing Step3 Run software RTD Tool V1 7 version ...

Page 44: ...Lenovo Service Manual L2021W 44 1 selected ISP RTD2122 as shown in Press the icon to select Note save HDCP key ...

Page 45: ...Lenovo Service Manual L2021W 45 2 selcted Page Select as shown in 3 Click 64K selcted software files as shown in software files must be in a directory ...

Page 46: ...Lenovo Service Manual L2021W 46 In this way Automatic Identification space size Next selected Externd True Size ...

Page 47: ...Lenovo Service Manual L2021W 47 4 Click Programming started After Programming Appear PASS ...

Page 48: ...ce 12V for figure below 2 Connect the DDC recording device and the PC through PC parallel port 3 setup Port95nt driver program to PC 4 select relevant program and run it below figure will appear 5 Press LoadFile select EDID model of product and select input port 6 key in SN and other informatiom key press Pragram button ...

Page 49: ...Lenovo Service Manual L2021W 49 ...

Page 50: ...Lenovo Service Manual L2021W 50 ...

Page 51: ...eplacing the Main board and the Panel Check for enter the Factory mode then re writing DDC is necessary Press MENU button and hold reinsert the Power cord then press MENU the monitor will may enter Factory OSD Menu Then Press Factory OSD Menu will appear in the screen ...

Page 52: ...Lenovo Service Manual L2021W 52 In normal user mode open the menu to restore factory default values ...

Page 53: ...95G8014 3W702 Wire Harness 3P A1253 3P A1253 100mm 2nd source E09503 095G8014 3X702 Wire Harness 3P A1253 3P A1253 100mm 2nd source E09502 095G8014 6D723 Wire Harness 6P PH 6P A1253 160mm 2nd source E09502 095G8014 6W723 Wire Harness 6P PH 6P A1253 160mm 2nd source E09502 095G8014 6X723 Wire Harness 6P PH 6P A1253 160mm 1 E09501 095G8018 3DH81 LVDS CABLE 30P 24P 160MM 1 0M1G 140 8125 SCREW 2 0M1G ...

Page 54: ... Q301 057G 417511 MMBT3904 1 Q401 057G 417511 MMBT3904 1 Q204 057G 417512 MMBT3906 1 Q205 057G 417512 MMBT3906 1 Q602 057G 417512 MMBT3906 1 Q401 057G 417518 TRA LMBT3904LT1G 200mA 40V SOT 23 LRC 2nd source Q301 057G 417518 TRA LMBT3904LT1G 200mA 40V SOT 23 LRC 2nd source Q202 057G 417518 TRA LMBT3904LT1G 200mA 40V SOT 23 LRC 2nd source Q601 057G 763 1 A03401 SOT23 BY AOS A1 1 R302 061G0402000 RST...

Page 55: ... RST CHIPR 10 KOHM 5 1 16W 1 R316 061G0402103 RST CHIPR 10 KOHM 5 1 16W 1 R213 061G0402103 RST CHIPR 10 KOHM 5 1 16W 1 R210 061G0402103 RST CHIPR 10 KOHM 5 1 16W 1 R202 061G0402103 RST CHIPR 10 KOHM 5 1 16W 1 R326 061G0402104 RST CHIPR 100 KOHM 5 1 16W 1 R207 061G0402121 RST CHIP 120R 1 16W 5 1 R208 061G0402121 RST CHIP 120R 1 16W 5 1 R201 061G0402201 RST CHIP 200R 1 16W 5 1 R428 061G0402220 RST C...

Page 56: ...04 15 MLCC 0402 0 1UF K 16V X5R 1 C503 065G0402104 15 MLCC 0402 0 1UF K 16V X5R 1 C502 065G0402104 15 MLCC 0402 0 1UF K 16V X5R 1 C410 065G0402104 15 MLCC 0402 0 1UF K 16V X5R 1 C406 065G0402104 15 MLCC 0402 0 1UF K 16V X5R 1 C403 065G0402104 15 MLCC 0402 0 1UF K 16V X5R 1 C316 065G0402104 15 MLCC 0402 0 1UF K 16V X5R 1 C206 065G040210412K T CAP CHIP 0402 0 1UF 16V X7R 1 C501 065G0402105 A5 CAP 04...

Page 57: ...BT1G BY LRC 1 D403 093G 64S522SEM LL4148 1 715G3327 1 MAIN PCB FR 4 D S 80X67MM 1 J07G 1 S188 WOODEN PALLET 1 J07G 1 S189 wooden pallet 1 J11G 800 5 支撑钉 1 J15G8B42101 L2021W Main Frame 1 J34G8B65AGQA1S9073 L2021W BEZEL L20W Tlh1 s1 前框 20 1 J34G8B66AGQA1S9073 L2021W REAR COVER 后壳 20 1 J34G8B67AKH 1S9073 L2021W BEZEL CHIN 装饰片 2nd source J40G 20N608 8A ID LABEL L2021 2 J40G 20N608 9A RATING LABEL L20...

Page 58: ...6031001FF RST CHIPR 1KOHM 1 1 10W FENGHUA 1 R005 061G06031001FY RST CHIPR 1KOHM 1 1 10W YAGEO 2nd source R004 061G06032001FT RST CHIP R 2Kohm 1 10W 1 1 R002 061G06032001FT RST CHIP R 2Kohm 1 10W 1 1 R002 061G06032001FY RST CHIPR 2KOHM 1 1 10W YAGEO 2nd source R004 061G06032001FY RST CHIPR 2KOHM 1 1 10W YAGEO 2nd source C002 065G060310432K A CAP CHIP 0603 100nF K 50V X7R 1 C003 065G060310432K A CAP...

Page 59: ...680UF M 25V 1 C917 067G215P6814XV CAP 105C 680UF M 25V 1 C940 067G215S1024KV EC 105 CAP 1000UF M 25V 2nd source C940 067G215S1024LV LOW ESR EC 1000uF 25V M 12 5 20mm 2nd source C915 067G215S4713KV EC 105 CAP 470UF M 16V 1 L901 073G 174 65 H1 LINE FILTER 26mH MIN 1 L904 073G 253 91 V1 CHOKE COIL 1 1uH 1 L903 073G 253 91 V1 CHOKE COIL 1 1uH 1 L903 073G 253191 L CHOKE COIL 1 1uH CC 007802 2nd source ...

Page 60: ...11 MMBT3904 2nd source Q804 057G 417512 MMBT3906 2nd source Q812 057G 417512 MMBT3906 2nd source Q802 057G 600 55 P5506 HVG SO 8 2nd source Q809 057G 758 1 2N7002ESOT23 SILICONIX 2nd source Q809 057G 759 2 RK7002FD5T116 SOT 23 BY ROHM 2nd source Q808 057G 760 4A DTA144WN3 S SOT 23 1 Q805 057G 760 5A DTC 144WN3 S SOT 23 1 Q802 057G 763 6 AO4828 SOIC 8 BY AOS 1 Q802 057G 763 14 AM9945N 2nd source Q8...

Page 61: ... 150OHM 1 1 8W FENGHUA 2nd source R924 061G08051500FT RST CHIPR 150 OHM 5 1 8W 1 R825 061G0805220 RST CHIPR 22 OHM 5 1 8W 1 R829 061G0805220 RST CHIPR 22 OHM 5 1 8W 1 R850 061G0805220 RST CHIPR 22 OHM 5 1 8W 1 R839 061G0805220 RST CHIPR 22 OHM 5 1 8W 1 R943 061G0805471 JT RST CHIPR 470OHM 5 1 8W TZAI YUAN 1 R943 061G0805471 JY RST CHIPR 470OHM 5 1 8W YAGEO 2nd source R837 061G0805473 RST CHIPR 47K...

Page 62: ...0310432K F CAP CHIP 0603 0 1UF K 50V X7R 1 C842 065G060310432K Y CAP CHIP 0603 0 1UF K 50V X7R 2nd source C819 065G0603222 22 CHIP 2200PF 25V X7R 1 C823 065G0603222 22 CHIP 2200PF 25V X7R 1 C928 065G0805103 32 CAP CHIP 0805 10NF K 50V X7R 1 C824 065G0805104 32 CAP CHIP 0805 0 1uF K 50V X7R 1 C911 065G0805104 32 CAP CHIP 0805 0 1uF K 50V X7R 1 C924 065G0805104 32 CAP CHIP 0805 0 1uF K 50V X7R 1 C93...

Page 63: ...T RLZ18B LLDS 1 PWA21L2AIJ powe board for ai 1 CN901 006G 31500 EYELET 2 040G 45762420A LABEL 25x6mm 1 IC903 056G 158 10 T IC AS431AZTR E1 TO 92 1 IC903 056G 158 12 KIA431A AT P TO 92 2nd source R908 061G152M10452T RST MOFR 100KOHM 5 2WS 1 R946 061G152M15152T RST MOFR 150 OHM 5 2WS 1 R914 061G152M47852T RST MOFR 0 47 OHM 5 2WS 1 C906 065G 2K152 2T6213 CAP CER 1500PF K 2KV 2nd source C906 065G 2K15...

Page 64: ...RE 1 J802 095G 90 23 JUMPER WIRE 1 J801 095G 90 23 JUMPER WIRE 1 C803 095G 90 23 JUMPER WIRE 1 715G4174P01000001C POWER PCB 160X160 1 6mm FFR 1 S S 1OZ 1 Q51G 6 4509 GLUE_RTV 2 T801 S80GL17T40V 变压器 ASS Y 1 T901 S80GL19T26V1 Transformer ASS Y 1 Q12G6001 1 Rubber foot 4 Q15G0822101 lenovo L2230 stand BKT 1 Q23G317860815A LOGO 1 Q33G0426AKHA1S KEY BUTTOM 2nd source Q33G0427AKH 1S KEY PAD 1 Q33G0428 2...

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