Lenovo ThinkVision L197 Wide Service Manual Download Page 33 | Manualshive

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19" LCD Color Monitor

Lenovo L197 Wide

33

8.2.2 Power/Inverter Board

1.) No power

Check bridge rectified circuit and F901 circuit

Check R904, R932, R933 and Check IC901

2) Check IC901 over current protect circuit

Check CN902 pin4, 5 = 12V

Check AC line volt 110V or 220V

Check the voltage of C905 (+)

Check start voltage for the pin8 of IC901

Check the auxiliary voltage is bigger than

10V and smaller than 20V

Check Q901, FB901, D900, ZD921, ZD922, D915, D916, IC903 and T901

Check IC901 pin6 PWM wave

Check IC901

NG

NG

NG

OK

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Summary of Contents for ThinkVision L197 Wide

Page 1: ...n Instruction 6 3 1 General Instructions 6 3 2 Control Button 6 3 3 OSD Menu 7 4 Input Output Specification 9 4 1 Input Signal Connector 9 4 2 Factory Preset Display Modes 10 4 3 Panel Specification 10 5 Block Diagram 13 5 1 Software Flow Chart 13 5 2 Electrical Block Diagram 15 6 Schematic 17 6 1 Main Board 17 6 2 Power Board 21 7 PCB Layout 23 7 1 Main Board 23 7 2 Power Board 25 7 3 Key Board 2...

Page 2: ...D Color Monitor Lenovo L197 Wide 2 Revision List Version Release Date Revision History TPV Model Name A00 Sep 07 2008 Initial release T9RSM6DKLWH9HC T9RSM6DLLWH9HC T9RSM6DMLWH9HC h t t p w w w w j e l n e t ...

Page 3: ...tics may create shock fire or other hazards Under no circumstances should the original design be modified or altered without written permission from AOC AOC assumes no liability express or implied arising out of any unauthorized modification of design Servicer assumes all liability FOR PRODUCTS CONTAINING LASER DANGER Invisible laser radiation when open AVOID DIRECT EXPOSURE TO BEAM CAUTION Use of...

Page 4: ...quency 30kHz 81kHz Input V Frequency 50 76 Hz ON Mode 22W Normal operation Power Consumption OFF Mode 1W Display Color 16 7M Dot Clock 137MHz Max Resolution 1440 x 900 Plug Play VESA DDC2BTM Power Source 100 240VAC 47 63Hz D Sub 15pin Input Connector DVI 24pin Input Video Signal Analog 0 7Vp p standard 75 OHM Positive Maximum Screen Size Horizontal 408 24mm Vertical 255 25mm Environmental Consider...

Page 5: ...l logic and DDC The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage AC IN 100V 240V Power board Include adapter inverter Flat Panel and CCFL backlight Main Board RS232 Connector For white balance adjustment in factory mode CCFL Drive Video signal DDC Monitor Block Diagram Key Board HOST Computer h t t p w w w w j e l n e t ...

Page 6: ...at the front of the panel of the monitor By changing these settings the picture can be adjusted to your personal preferences The power cord should be connected Connect the video cable from the monitor to the video card Press the power button to turn on the monitor the power indicator will light up 3 2 Control Buttons 3 2 1 Key Control 3 2 2 Key Function h t t p w w w w j e l n e t ...

Page 7: ...19 LCD Color Monitor Lenovo L197 Wide 7 3 3 OSD Menu OSD function h t t p w w w w j e l n e t ...

Page 8: ...19 LCD Color Monitor Lenovo L197 Wide 8 h t t p w w w w j e l n e t ...

Page 9: ...nnector layout 1 5 6 10 11 15 DVI connectors Pin No Description Pin No Description Pin No Description 1 TMDS data2 9 TMDS data1 17 TMDS data0 2 TMDS data2 10 TMDS data1 18 TMDS data0 3 TMDS data2 4 shield 11 TMDS data1 3 shield 19 TMDS data0 5 shield 4 TMDS data4 12 TMDS data3 20 TMDS data5 5 TMDS data4 13 TMDS data3 21 TMDS data5 6 DDC Clock 14 5V 22 TMDS clock shield 7 DDC data 15 To check signa...

Page 10: ...uid crystal display LCD that uses amorphous silicon TFT Thin Film Transistor as switching components This model is composed of a TFT LCD panel a driver circuit and a back light unit The resolution of a 19 0 is 1440 x 900 and this model can display up to 16 7 millions colors 4 3 2 Display Characteristics 4 3 3 Mechanical Information h t t p w w w w j e l n e t ...

Page 11: ...19 LCD Color Monitor Lenovo L197 Wide 11 4 3 4 Optical Characteristics h t t p w w w w j e l n e t ...

Page 12: ...19 LCD Color Monitor Lenovo L197 Wide 12 4 3 5 Electrical Characteristics 1 TFT LCD 2 Backlight h t t p w w w w j e l n e t ...

Page 13: ...19 LCD Color Monitor Lenovo L197 Wide 13 5 Block Diagram 5 1 Software Flow Chat 1 2 N Y 5 Y N 10 Y N 12 Y N 7 Y N 6 4 3 8 9 14 11 13 Y N 15 Y N 16 17 19 Y N 18 h t t p w w w w j e l n e t ...

Page 14: ... set it to green color Scalar initializes 10 In standby mode 11 Update the lifetime of back light 12 Check the analog port are there any signals coming 13 Does the scalar send out an interrupt request 14 Wake up the scalar 15 Are there any signals coming from analog port 16 Display No connection Check Signal Cable message And go into standby mode after the message disappear 17 Program the scalar t...

Page 15: ...Electrical Block Diagram 5 2 1 Main Board U401 Scalar IC TSUM5PFHL LF Include MCU ADC OSD D Sub Connector CN101 H sync V sync RGB LCD Interface CN301 Key Board Control CN402 Crystal X401 14 31818MHZ DVI Connector CN102 h t t p w w w w j e l n e t ...

Page 16: ...er Start Circuit R904 R932 R933 PWM Control IC Transformer AC input 12V ON OFF Control Feedback Circuit Transformer MOSFET Lamp ON OFF 5V Bridge Rectifier and Filter Feedback Circuit Rectifier diodes CN902 Output Circuit PWM Control IC IC801 Over Voltage h t t p w w w w j e l n e t ...

Page 17: ...4shield 3 DAT4 4 DAT4 5 DDC SCL 6 DDC SDA 7 VSYNC 8 DAT1 9 DAT1 10 1 3shield 11 DAT3 12 DAT3 13 5V 14 SYNC GND 15 HPD 16 DAT0 17 DAT0 18 0 5shield 19 DAT5 20 DAT5 21 clk shield 22 clk 23 clk 24 GND 26 GND 25 CN102 JACK R104 1K 1 16W 5 R138 4K7 1 16W 5 DDC2_SDA C113 5pF 50V DSUB_5V V_Sy nc ZD105 RLZ5 6B 1 2 FB102 BEAD R125 4K7 1 16W 5 VGA_PLUG RX1P R124 4K7 1 16W 5 A0 1 A1 2 A2 3 VSS 4 SDA 5 SCL 6 ...

Page 18: ...9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 CN301 CONN AO3401L 2 1 Change the type of resistor R301 from 0805 to 1206 C304 NC C303 NC S D R302 4K7 1 16W 5 3 G LVA0P RXE0 RXO0 LVB0M RXE3 LVA3M RXE1 LVA1M LVACKM RXEC RXO3 LVB3M LVB2M RXO2 RXO1 LVB1M RXE2 LVA2M LVBCKM RXOC RXOC LVBCKP RXE0 LVA0M S 1 S 2 S 3 G 4 D 8 D 7 D 6 D 5 U301 NC AO4411 RXE2 LVA2P RXO0 LVB0P RXO1 LVB1P RXO3 ...

Page 19: ... print NC 3 3 OHM 2W U701 223 223 252 Mute BKLT EN 3 1 2 D702 BAT54C DSUB_5V BKLT VBRI Volume BKLT EN CMVCC BKLT VBRI CMVCC R702 10K 1 16W 5 C706 100uF25V C701 0 1uF 16V R703 10K 1 16W 5 C708 0 1uF 16V C702 NC 1 2 3 4 5 6 7 8 9 CN701 CONN R705 10K 1 16W 5 R704 4K7 1 16W 5 C707 100uF25V C709 0 1uF 16V R706 1K 1 16W 5 Q701 MMBT3904 MVCC_1 FB701 NC C705 0 1uF 16V DGND 1 2 3 CMVCC VCC1 8 Mute 2 Volume...

Page 20: ...16W 5 VCC3 3 PB5 VMPLL C416 NC R426 10K 1 16W 5 PB0 PA7 C409 0 1uF 16V PB 0 9 C402 10uF 50V FB404 300OHM C423 0 22uF16V R403 0 OHM 5 1 8W Q404 NC C422 0 1uF 16V LED_GRN BLUE C403 0 1uF 16V C410 0 1uF 16V AVDD C431 0 1uF 16V VDDC R420 120R 1 16W 5 VCC3 3 EE_WP C407 0 1uF 16V C406 0 1uF 16V C405 0 1uF 16V LED_GRN BLUE C414 0 1uF 16V VCC3 3 C435 0 1uF 16V R415 100R 1 16W 5 PA1 PA0 VCC3 3 VPLL R442 10...

Page 21: ...ment Number Rev Date Sheet of 5V R903 680K 1 4W ON OFF 12V R926 10K 1 10W R910 10R 1 4W R940 33K 1 10W R931 8K2 1 8W Q903 STP10NK70ZFP R918 100 1 4W R921 1K 1 4W C915 470uF16V R962 100 1 4W D915 IN4148W ZD902 RLZ13B 1 2 R917 1K 1 8W R904 4K7 1 4W 5V C908 22uF 50V R913 NC C909 0 22uF 50V R922 1K 1 4W C903 0 47uF 275V R935 100 1 4W CN902 CONNECTOR 1 2 3 4 5 6 7 8 9 R928 1K 1 4W IC904 AP431VLA JR901 ...

Page 22: ...39 22R 1 8W R801 1K5 1 10W 1 R817 10K 1 10W R850 22R 1 8W R806 3 6K 1 1 10W Q810 RK7002 R811 10K 1 10W R809 3 6K 1 1 10W R824 1K 1 10W 1 R851 10K 1 10W R818 1K 1 10W 1 R825 22R 1 8W R828 10K 1 10W CN801 CONN 1 2 R829 22R 1 8W IC801 TL494IDR 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1IN 1IN FEEDBACK DTC CT RT GND C1 E1 E2 C2 VCC OUTPUT CTRL REF 2IN 2IN R821 1K 1 10W 1 JR801 0R05 1 4W R832 10K 1 10W D8...

Page 23: ...19 LCD Color Monitor Lenovo L197 Wide 23 7 PCB Layout 7 1 Main Board 715G2883 1 h t t p w w w w j e l n e t ...

Page 24: ...19 LCD Color Monitor Lenovo L197 Wide 24 h t t p w w w w j e l n e t ...

Page 25: ...19 LCD Color Monitor Lenovo L197 Wide 25 7 2 Power Board 715G2664 2 h t t p w w w w j e l n e t ...

Page 26: ...19 LCD Color Monitor Lenovo L197 Wide 26 h t t p w w w w j e l n e t ...

Page 27: ...19 LCD Color Monitor Lenovo L197 Wide 27 h t t p w w w w j e l n e t ...

Page 28: ...19 LCD Color Monitor Lenovo L197 Wide 28 7 3 Key Board 715G2762 3 h t t p w w w w j e l n e t ...

Page 29: ... 8 Maintainability 8 1 Equipments and Tools Requirement 1 Voltmeter 2 Oscilloscope 3 Pattern Generator 4 DDC Tool with an IBM Compatible Computer 5 Alignment Tool 6 LCD Color Analyzer 7 Service Manual 8 User Manual h t t p w w w w j e l n e t ...

Page 30: ...wer key and look if the picture is normal Please reinsert and make sure the AC of 100 240 is normal Reinsert or check the power section Check if X401 oscillate waveforms are normal Measure U701 Pin2 3 3V OK OK NG NG NG Measure CN701 Replace U401 Replace X401 NG Replace U701 OK OK h t t p w w w w j e l n e t ...

Page 31: ...al Replace U401 Replace X401 Measure U701 Pin2 3 3V Check Correspondent component Replace U401 Check X401 oscillate waveform is normal Replace U701 OK OK OK OK OK NG NG NG NG Check reset circuit of U401 is normal Check HS VS from CN101 is normal Replace X401 Check Correspondent component NG NG OK h t t p w w w w j e l n e t ...

Page 32: ...base is low level X401 oscillate waveform is normal Check CN301 is solder and Q301 Q302 is OK Check Correspondent component Replace PANEL Check Correspondent component Replace U401 OK OK OK Replace X401 OK NG NG NG NG Check reset circuit of U401 is normal h t t p w w w w j e l n e t ...

Page 33: ... over current protect circuit Check CN902 pin4 5 12V Check AC line volt 110V or 220V Check AC input Check the voltage of C905 Check start voltage for the pin8 of IC901 NG Check the auxiliary voltage is bigger than 10V and smaller than 20V OK OK NG Check Q901 FB901 D900 ZD921 ZD922 D915 D916 IC903 and T901 OK Check IC901 pin6 PWM wave OK Check IC901 NG NG NG OK NG h t t p w w w w j e l n e t ...

Page 34: ...ace board NG OK Check IC801 PIN12 12V NG OK Change Q808 Q805 Check IC801 PIN10 9 have the output of square wave at short time NG OK Change IC801 Check Q802 PIN5 6 7 8 have the output of square wave at short time NG OK Check Q801 Q804 Q811 Q812 and Q802 Check the output of T801 Check connecter lamp OK NG Change T801 h t t p w w w w j e l n e t ...

Page 35: ...y Board OSD is unstable or not working Is Key Pad Board connecting normally Connect Key Pad Board Is Button Switch normally Replace Button Switch Y N N Is Key Pad Board normally Replace Key Pad Board Y N Y Check Main Board h t t p w w w w j e l n e t ...

Page 36: ...00K Default color Default color temp parameter is x 302 20 y 318 20 Y 180 20cd m2 C MEM CHANNEL 9 9300K Bluish color Bluish color temp parameter is x 283 20 y 297 20 Y 180 20cd m2 D MEM CHANNEL 10 sRGB color sRGB color temp parameter is x 313 20 y 329 20 Y 180 20cd m2 3 Into Factory mode of Lenovo L197 Wide Press the MENU button pull out the power cord and then plug the power cord Then the factory...

Page 37: ...w x 283 20 y 297 20 Y 180 20cd m2 4 Adjust the RED on factory window until chroma 7120 indicator reached the value R 100 5 Adjust the GREEN on factory window until chroma 7120 indicator reached the value G 100 6 Adjust the BLUE on factory window until chroma 7120 indicator reached the value B 100 7 Repeat above procedure item 4 5 6 until chroma 7120 RGB value meet the tolerance 100 2 D Adjust sRGB...

Page 38: ...w RELEASE BUTTON HINGE POWER LENS BUTTON FUNC BEZEL L19W 7LH BASE 1 1 1 1 1 1 1 2 3 4 5 6 No Part No Q ty 7 8 9 10 11 12 13 RUBBER FOOT 5 STAND COVER CYLINDER COVER SCREW RUBBER REAR COVER 19 MAIN FRAME PANEL 3 1 1 1 1 1 Lenovo L197 Wide h t t p w w w w j e l n e t ...

Page 39: ...UM FOIL TAPE 052G 1211527 CONDUCTIVE TAPE 75MM 45MM 0 08MM 052G6019 1 INSULATING TAPE 070GHDCP500HDC HDCP CODE E08902 089G 728HAA 1 SIGNAL CABLE E08903 089G1748HAA AC DVI CABLE 089G402A18NLSM POWER CORD 0M1G 130 6120 SCREW M3X6 0M1G1730 6120 SCREW 42 D020523 0M1G1730 6120 SCREW 42 D020523 0M1G1740 10225 CR3 SCREW 0Q1G 330 8 47 CR3 SCREW 0Q1G1030 6120 SCREW 705GQ734350 STAND BASE ASS Y 19 0Q1G 340 ...

Page 40: ...105 CAP 100UF M 25V C706 067G 3151014KV EC 105 CAP 100UF M 25V CN101 088G 35315F HD D SUB CONN F ATTACHED SCREW CN102 088G 35424F D DVI 24PIN CONN F ATTACHED SCREW X401 093G 22 53 J 14 31818MHZ 32PF 49US U401 056G 562558 IC TSUM5PFHL LF U107 056G 662502 IC ESD AZC199 04S SOT23 6L U106 056G 662502 IC ESD AZC199 04S SOT23 6L U105 056G 662502 IC ESD AZC199 04S SOT23 6L U104 056G 662502 IC ESD AZC199 ...

Page 41: ...16 061G0402101 RST CHIPR 100 OHM 5 1 16W R415 061G0402101 RST CHIPR 100 OHM 5 1 16W R409 061G0402101 RST CHIPR 100 OHM 5 1 16W R119 061G0402101 RST CHIPR 100 OHM 5 1 16W R118 061G0402101 RST CHIPR 100 OHM 5 1 16W R117 061G0402101 RST CHIPR 100 OHM 5 1 16W R115 061G0402101 RST CHIPR 100 OHM 5 1 16W R114 061G0402101 RST CHIPR 100 OHM 5 1 16W R113 061G0402101 RST CHIPR 100 OHM 5 1 16W R111 061G040210...

Page 42: ...1G0402390 1F RST CHIPR 3 9KOHM 1 1 16W R110 061G0402471 RST CHIPR 470 OHM 5 1 16W R124 061G0402472 RST CHIPR 4 7 KOHM 5 1 16W R125 061G0402472 RST CHIPR 4 7 KOHM 5 1 16W R137 061G0402472 RST CHIPR 4 7 KOHM 5 1 16W R138 061G0402472 RST CHIPR 4 7 KOHM 5 1 16W R302 061G0402472 RST CHIPR 4 7 KOHM 5 1 16W R704 061G0402472 RST CHIPR 4 7 KOHM 5 1 16W R304 061G0402473 RST CHIPR 47 KOHM 5 1 16W R139 061G04...

Page 43: ...2104 15 MLCC 0402 0 1UF K 16V X5R C403 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C302 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C301 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C115 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C709 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C708 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C705 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C701 065G0402104 15 MLCC 0402 0 1UF K 16V X5...

Page 44: ...HIP 5PF 50V NPO FB702 071G 56G301 EA BEAD 300 欧 FB401 071G 56V301 B CHIP BEAD FCM2012VF 301T07 BULLWILL FB402 071G 56V301 B CHIP BEAD FCM2012VF 301T07 BULLWILL FB404 071G 56V301 B CHIP BEAD FCM2012VF 301T07 BULLWILL FB104 071G 59G301 CHIP BEAD 300OHM FB105 071G 59G301 CHIP BEAD 300OHM FB107 071G 59G301 CHIP BEAD 300OHM FB703 071G 59G301 CHIP BEAD 300OHM FB108 071G 59G301 CHIP BEAD 300OHM FB103 071...

Page 45: ...2 061G1206000 RST CHIPR 0 OHM 5 1 4W RJ003 061G1206000 RST CHIPR 0 OHM 5 1 4W RJ001 061G1206000 RST CHIPR 0 OHM 5 1 4W ZD010 093G 39P599 T MM3Z5V6B ZD006 093G 39P599 T MM3Z5V6B ZD007 093G 39P599 T MM3Z5V6B ZD008 093G 39P599 T MM3Z5V6B ZD009 093G 39P599 T MM3Z5V6B 715G2762 3 KEY BOARD PCB PWPC7921MQDT POWER BOARD 040G 45762412B CBPC LABEL GND1 009G6005 1 GROUND TERMINAL CN804 033G8021 2E F WAFER CN...

Page 46: ...ET ST 01DG B2K K BD901 093G 50460 28 BRIDGE DIODE KBP208G LITEON D907 093G3006 1 1 31DQ06FC3 NIHON INTER CN902 095G 825 9J502 WIRE HARNESS 9P SCN 9P 705GQ757004 Q901 ASS Y 051G 200 1 OIL FOR DISAPPEAR Q901 057G 667 21 STP10NK70ZFP 090G6263 1 HEAT SINK 0M1G1730 8120 SCREW 705GQ793060 D906 ASS Y 051G 200 1 OIL FOR DISAPPEAR D906 093G 60218 SB10100FCT 0M1G1730 8120 SCREW Q90G0117 2 HEAT SINK IC801 05...

Page 47: ... 061G0603100 2F RST CHIPR 10K OHM 1 1 10W R926 061G0603100 2F RST CHIPR 10K OHM 1 1 10W R851 061G0603100 2F RST CHIPR 10K OHM 1 1 10W R803 061G0603105 RST CHIPR 1M OHM 5 1 10W R835 061G0603105 RST CHIPR 1M OHM 5 1 10W R862 061G0603105 RST CHIPR 1M OHM 5 1 10W R814 061G0603150 1F RST CHIPR 1 5 KOHM 1 1 10W R801 061G0603150 1F RST CHIPR 1 5 KOHM 1 1 10W R924 061G0603152 RST CHIPR 1 5 KOHM 5 1 10W R8...

Page 48: ...OHM 5 1 8W R912 061G0805220 2F RST CHIPR 22 KOHM 1 1 8W R915 061G0805224 RST CHIPR 220 KOHM 5 1 8W R810 061G0805510 2F RST CHIPR 51K OHM 1 1 8W R931 061G0805822 RST CHIPR 8 2 KOHM 5 1 8W F902 061G1206000 RST CHIPR 0 OHM 5 1 4W JR801 061G1206000 RST CHIPR 0 OHM 5 1 4W JR802 061G1206000 RST CHIPR 0 OHM 5 1 4W JR901 061G1206000 RST CHIPR 0 OHM 5 1 4W R967 061G1206000 RST CHIPR 0 OHM 5 1 4W F801 061G1...

Page 49: ...P CHIP 0603 0 1UF K 25V X7R C821 065G0603104 22 CAP CHIP 0603 0 1UF K 25V X7R C803 065G0805102 31 CAP CHIP 0805 1000PF J 50V NPO C839 065G0805102 31 CAP CHIP 0805 1000PF J 50V NPO C910 065G0805102 31 CAP CHIP 0805 1000PF J 50V NPO C931 065G0805104 32 CAP CHIP 0805 0 1UF K 50V X7R C930 065G0805104 32 CAP CHIP 0805 0 1UF K 50V X7R C916 065G0805104 32 CAP CHIP 0805 0 1UF K 50V X7R C907 065G0805104 32...

Page 50: ...VET IC904 056G 158 12 KIA431A AT P TO 92 C938 065G 2K152 1T GP CERAMIC CAP C906 065G 2K152 1T6921 1 5NF 2KV Y5P 10 C908 067G215Y2207KT CAP 105 22UF M 50V KINGNICHI FB901 071G 55 29 FERRITE BEAD F901 084G 55 1W FUSE 4A 250V WICKMANN D901 093G 6038P52T PS102R D900 093G1100 1152T DIODE PR1007R 1A 1000V DO 41 715G2664 2 POWER BOARD PCB Q51G 6 4509 GLUE_RTV Q07G 2 L 26 X WOODEN PALLET Q07G 8 5 21 COMPO...

Page 51: ...41G780060844A STW FOR L194 WIDE Q45G2007M0203A PE BAG FOR LENOVO Q70G900260815A CD MANUAL 040G 58162435A P N LABEL FOR MANUAL PE BAG 040G 582625 2A S N LABEL 040G 582625 3A S N LABEL P40GD000813 9A FAMILY SHEET Q40G 19N60828B RATING LABEL Q40G 19N60829A RATING LABEL Q40G0001625 1A CARTON LABEL Q40G000260820A QC PASS LABEL 12 Different Parts List Diversity of T9RSM6DLLWH9HC compared with T9RSM6DKLW...

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