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1. FB102 MVCC_1 _ VGA Bt 1 2 105 100R 1 16W 594 102 BEAD 1 t 0 0470F DSUBB 2 H Sync R10 OROS 1 10W 5 1 16W 5 2 2 R108 C105 1 RRNK THEW 5 5 5 Y 5pF 50V D109 758 1 16W 5 R106 R107 03 104 VGA _ NA R109 1008 AGAO ____ B 2 2 2 1 16W 5 22 116W 5 boe DSUB 5v U104 ESD 108 R110 ATOR 1 16W 5 C107 506 2 0508 scL__1 or yoa 8 E FBt03 1000pF Dsus spa 13 syne vea amp SA R111 100R 1 16W 594 C108 FB107 06 300 BEAD 1 ii 0808 2 Lt R101 Ji NON _ 2 199 045 E6112 R112 C109 DDC1 SCL DSUB SCL 15 VGA PLUG 5pF S0V 2 DSUB 5V 300 OHM TSR 1 16W 5 100R 1 16W 5 14 ts 0103 VGA B 6124 R11 100R 1 16W 594 C110 13 20104 46 5 T 4 RTI AA Cig ppsuss 2 R113 pupe ce ipi DDC1 SDA DSUB SDA 12 GF 2 DDC1_SDAK VOA R 825 68 0103 ESD VCC 100R 1 16W 5 11 VGA Gt 1 iron voa LS FB101 vea r 778 GNDVDD VGA B VGA 1 2 8115 100R 1 16W 5 111 T 1 02 1 03 BEAD gt gt DSUB_R 22. Lenovo L1900P 2 2 1 03 1000pF T801 0808 R817 Rezi POWER BAW56 10K 1710W 1K 1 1 CONN R812 F801 33 0 OHM 1 4W cmo 3 Have O 01uF 15pF 6KV R801 R855 TKS 1 10W 1 ATOUFI25V A 0802 1 R609 AMSSASN TI PF 3 6K 1 1108 4 5 D 1 als ple 2 2 7 s R828 R822 R839 1 8 10K 1710W 1K 110W 1 4 1 228 18W 8 CONN 823 O 01uF R814 1 5 1 10 1 JR802 0805 Haw R850 228 118W R827 3 6K OHM 1 1 10W R853 GBK 194 1710W Por INA148W 2 1 3 6K OHM 1 1 R841 GBK 1 1H0W R829 22R 1 8W AR Tew A R807 R837 68K 1 1 10W 0814 OHM 1 1 10W 16 zm I je florc OUTPUT CTRL Ha pi SA H2 PH E2 Hi iet E1 R54 NC R803 RK7002 R808 1M1H10W 5 ce25 R824 0 1uF 25V TOW R826 1K 140W 1 1 834 ceas R862 01 5 1M1 10W 5 JR801 2 2uFn6Vv 1M 1710W 5 OROS
3. 5 WE 1 10K 1716W 5 NOD 1 2 so 3 BACKLIGHT 4 4 WP 5 5 adj BACKLIGHT vss s SST25LF020A 33 4C SAE R41 1008 1 16W 5 KEY1 ppwR KEYZ cang RAT 5 1 4 cate IN 419 A 1208 1 16W 5 LED GRN BLUE 3 9K 1 16W 5 Raa 5 LED ORANGE o tuF 16v Razi Ra NC Hes ERP HDCP_CTRL 1 100K 1 16W 5 16 1008 DC x R426 ada 8425 2 1008 5 ROW R KEW jons l14 31818MHz 10 11601 5 azi 1008 1 16W 5 NCHOK 1716W 5 0 1uF 16V FB406 R430 R429 1008 1 16 5 Ly RAS A A008 1116W 5 EP Noles NC 6 403 21 27 sw 29 tok THEW s 9 10K iion 5 MSCL Ella SCL E2 MSDA 1 5 VSS 4 R444 R443 3 9K OHM 1 1 16W 3 9K OHM 1 1 16 MACORANMNGTP KEv2 1 POWER KEYE LED GAN BLUE LED ORANGE can Ratt C435 Race T o tur teV 0 1uF 16V O 1UF I6V 10K 5 0 1uF 16V Q 10K 116w 5 Victory Electronics Co Lia MODEI LenovoL1900 Size G2883 1C 23c13 080016 MODEL Rev 6 0 SCALER aes Date Tue
4. Top Victory Electronics Co Ltd 11900 Size Custom MODEL PW cesziLaBz Rev 1 Key Component 71562664 1 2 7 gt She of 23 19 LCD Color Monitor Lenovo L1900P 6 3 Key Board 715G3282 1 LEDOO1 R001 NC P R007 NC CN001 H R002 3 KOHM 1 1 10W E 1 LBADC1 2 2 3 DC _ POWERON 4 LED_GRN 5 LED 4 6 R05 1 10W 5 20012 R004 KOHM 1 1 10 alem c ZD008 20009 E 1 1 8 8 5 R005 171007 1 2 ESSEN 9 5 43 224 3 2221 SW004 Swoo3 SGND Swao5 SGND 1 SGND 002 li e s 1 2 e Bwoo1 8 E B A 5 K ell AUTO 3 0 1 4357 IND UM 5 3 5 LBADC1 B 5 5 5B 99 5 2991 E LEFT 1 8 1 042V N 8 2117 4 4 S RIGHT1 8K 1 042V E LBADC2 SGND SGND SGND SGND TT MENU 3 x 0K 1 435 sant SGND sono SGND SGND SGND RO02R003R004RO005RO006R007RO08 EDOO1LED002 LED RIGHT N C SEND LED MIDDLE N Victory Electronics Ltd OEM MODEL LEN L1900P Size B G3282 1 X X 1 080916 TPV MODEL LEN L1900P Rev A Key Component
5. Factory Reset Cancel Reset Resets monitor to the original factory settings OF Accessibility Controls button and menu settings for accessibility preferences 5 C Button repea rate Select lt or gt to change Off Slow time out Sets the length of time the OSD will pr emain active after the last time a utton is pressed 19 LCD Color Monitor Lenovo L1900P 4 Input Output Specification 4 1 Input Signal Connector Analog connectors Pinno _ VGA connector layout DVI connectors Pin No Description Pin Description Description 1 TMDS Data 2 9 TMDS Data 1 17 TMDS Data 0 2 TMDS Data 2 10 TMDS Data 1 18 TMDS Data 0 3 TMDS Data 2 4 Shield 11 TMDS Data 1 3 Shield 19 TMDS Data 0 5 Shield 4 TMDS Data 4 x 12 TMDS Data 3 20 TMDS Data 5 5 TMDS Data 4 13 TMDS Data 3 21 TMDS Data 5 6 DDC 14 5V Power 22 TMDS Clock Shield 7 DDC Data 15 Ground for 5V 23 TMDS Clock 8 N C 16 Hot Plug Detect 24 TMDS Clock 10 19 LCD Color Monitor Lenovo L1900P 4 2 Factory Preset Display Modes Addressability Refresh rate 640 x 350 70 Hz 640 x 480 60 Hz 66Hz 72 2 75 2 720 x 400 70 Hz 800 x 600 60 Hz 72 Hz 75 Hz 832 x 624 75 Hz Mac 1024 x 768 60 Hz 70 Hz 75
6. offer 8 1 601 5 9 28 19 LCD Color Monitor Lenovo L1900P EM toe E 0260 SU 018 3 5 0529 225 roeas 555 10842 0 B0 223 SW w w ns LI zoea BLOR 0111204 U 5080 N 5 25 L M 4 897 2 C 5 5 0891 Salton amp 10021 0 L lt Jsera 5 a 8 2 SS toes 8 8 2 08 2 8 1002 29 19 LCD Color Monitor Lenovo L1900P 7 3 Key Board 715G3282 1 7 PH 94V0 CNOO1 SR 54005 Dada SW004 2 0 59005 5 58002 58001 71563282 1 won R004 sor x 2 00 eem Wels c TER Fu 00 Tu 58 s 1111 8 8s ONAN 5 mm 4 D 1 8 ul le O 07 Nae 31 19 LCD Color Monitor 8 Maintainability 8 1 Equipments and Tools Requirement Voltmeter Oscilloscope Pattern Generator DDC Tool with an IBM Compatible Comput
7. 1 2 1 2 GNDVDD 1 3 1 8155 z 1 02 1 03 loo 1 02 1 03 BV RIZ err 0102 17 17 _ 116W 5 5 2 1 16W 5 VGA PLUGR139 6K8 1 16W 5 DELCABE 2 DDC2 SCL 1 6 3 DDC2 SDA T Sheek 0105 0106 2 WP gt gt de GND POWERDGND NC M24C02 WMN6TP i B E E VOCI TPV Top Victory Electronics Co OEM Lenovo L1900 Size 2883 1 3 13 080916 MODEL 1 Key Component 2 0 INPUT did OHM Date Tuesday September 16 2008 Sheet 2 o 6 18 19 LCD Color Monitor 2 0 9 gt Lenovo L1900P CN301 1 5 BIO LVBOM RXOO 30 LVA3P LVBOP 29 PA1LVA3M LVB1M 1 28 PA2 LVACKP LVBIP RXOT 27 PA3 LVACKM LVB2M _ RXO2 26 4 LVA2P 2 2 25 LVA2M 24 LVATP RXOC PAT __ LVAOP 9 LVAOM LVAOM RXEU __ RXEO 18 LVA1M____RXE1 LVATP RXET LVA2M RXE2 CMVCC LVA2P RXE2 LVACKM LVACKP LVA3M __ 9 LVA3P RXS 8 R303 C302 D 7 1 D 6 6 10K 1 16W 5 0 1uF 16V 5 BS 5 R304 Dj 4 R302 4 PANEL_VCC 3 A 1 16W 5 ATK 1 16W 5 AO3401 R301 C301 C
8. 02 Key pad switch PCB NAME 715G lt gt Tuesday September 16 2008 Sheet j of 2 24 Lenovo L1900P 19 LCD Color Monitor 7 PCB Layout 7 1 Main Board 715G2883 1 6 an le 8 231111 51181188 N Dn O 2 2 3 585 lt 5213 10 2 8 5 Al 69 E 12 51 5 H Gat 8 38 zn zl RT 1010 vivo 0578 1 gi mm 184 90791 6 25 19 LCD Color Monitor Lenovo L1900P 26 Lenovo L1900P 19 LCD Color Monitor 27 19 LCD Color Monitor Lenovo L1900P 7 2 Power Board 715G2664 1 2 249 fa 71562664 1 2 4810 CN803 Jan 4809 L 484 4813 CN801 1806 0905 4805 4815 i 4804 o CAUTION HIGH VOLTAGE C802 A 4802 1 4801 8 1 5 coo 4F 2 amp 0901 koog 908 4 ZF 2 903 C938 fre n p JA C905 71562664 1 2 GE CAUTION ISUN nuno HIGH VOLTAGE Y 5 5 1 94 0 F901 gt 2 v c oro 2 80801 857 gt 7 wW L N SES s 2 CN804 5559 N 8 Dogs CN802 lt lt
9. 41 2 199 045 R116 113 758 1 16W 5 5pF 50V VGA R R117 100R 1 16 50414 T 4 gt gt DSUB_R 2 CMVCC DSUB 5V al CN102 SV D104 VSYNC fui SYNC GND 6 1008 1 16W 5 DDC2XSCL gt see sa i y E vv BE 5 a R140 4 3 1 12 C116 me ET C115 R121 NC NC Akeli 3 R122 lt HDCP_CTRL R124 R125 shield CTS 0 1uF 16V NC AKT 1 16W 5 4K7 1 16W 5 9101 O 5shield ield 1722 Q101 NC 8 1 shield ne 74 vec 5 8426 108 1 16W 5 DDC1 SCL 6 3 DATO EAZ 1 5 RXON 2 DDCISDA 5 SCL 24 DATO TI 8128 TOR 5 P x SDA 55 3 WP DATI 1 RXIN e E 2 DATI 2 DATI 2 R130 A10R 116W 5 mu 5 NC 24 02 6 1 R13 TOR 116W 5 FOON CES DAT2 Ha 104 105 DVI 5V DAT3 Hz X 9 DAT3 ts X 7 LLL 3 x AW 21 X 3000HM 300 DATE 1220 5 0108 6122 Ae _R132 A10R 1 16W 5 s exco 2 1000pF 29 24 L 116W 5 RXCN RXCN 2 VCC3 3 ale U107 ESD 0105 1106 ESD z 2 199 045 9 AZC 1992048 AZC 199 048 9 R133 7 14 1101 uos 18 14 24 1101 104 H M 8 2 GNDVDD 1 3 4 2
10. FB703 071G 59G301 CHIP BEAD 3000HM FB704 071G 59G301 CHIP BEAD 3000HM 0716 590301 0716 596301 0716 596301 102 19 OHM BEAD FB103 19 OHM BEAD FB101 19 OHM BEAD D104 DIO SIG SM BAT54C PHSE R D109 DIO SIG SM BAT54C PHSE R D702 DIO SIG SM BAT54C PHSE R E 70104 RLZ5 6B 70105 RLZ5 6B 0701 SM340A MAIN BOARD FR 4 0 5 80 72 KEY BOARD 3282 1 1 080916 001 WAFER 6P RIGHT ANGLE PITCH 2 0 004 TACT SWITCH V SW005 TACT SWITCH gt SW001 TACT SWITCH 5 002 TACT SWITCH SW003 T CT SWITCH LED001 0816 121 1 2032 310 2 50 R008 06160603000 7 8517 0 OHM 5 1 10W R003 06160603180 CHIPR 1 8 1 1 10W 8005 061006031801 RST CHIPR 1 8 KOHM 1 1 10W R002 06160603300 RST CHIPR 3 KOHM 1 1 10W R004 06150603300 RST CHIPR 3 KOHM 1 1 10W J002 06161206000 RST CHIPR 0 OHM 5 1 4W J003 06161206000 RST 0 OHM 5 1 4W J004 061G1206000 RST CHIPR 0 OHM 5 1 4W C010 065G0603102 32 1000PF 10 50 X7R C008 065G0603104 32 CHIP 0 1UF 50V X7R C007 065G0603104 32 CHIP 0 1UF 50V X7R C006 065G0603104 32 CHIP 0 1UF 50V X7R C009 065G0603104 32 CHIP 0 1UF 50V X7R ZD012 093G 39P599 T MM3Z5V6B ZD009 093G 39P599 T MM3Z5V6B 20008 093 39 599 MM3Z5V6B 47 19 LCD Color Monitor Lenovo L1900P 70007 0936 39P599 MM3Z5V6B 20006 093 39 599 MM3Z5V6B
11. PAN Q803 PMBS3904 PHILIPS SMT 04 se 0806 PMBS3904 PHILIPS SMT 04 5 7 0811 PMBS3904 PHILIPS SMT 04 2 Q902 PMBS3904 PHILIPS SMT 04 Q804 PMBS3906 PHILIPS SMT 06 Q812 PMBS3906 PHILIPS SMT 06 0802 P5506 80 8 0810 0809 7002_ gt 0808 0576 760 48 PDTA144WK SOT346 Q805 0576 76058 7 KPDTC144WK 507346 0802 0576 763 14 9945 R818 061G06031004F RST CHIPR 1 KOHM 1 1 10W R821 06160603100 1F R832 RST CHIPR 10K OHM 1 1 10W R851 RST CHIPR 10K OHM 1 1 10W R926 061G0603100 2F RST CHIPR 10K OHM 1 1 10W 49 19 LCD Color Monitor Lenovo L1900P R803 061G0603105 RST CHIPR 1M OHM 5 1 10W R835 061G0603105 RST CHIPR 1M OHM 5 1 10W R814 RST CHIPR 1 5 KOHM 1 1 10W R801 RST CHIPR 1 5 KOHM 1 1 10W R831 RST CHIPR 2 4 KOHM 1 1 10W R930 RST CHIPR 2 4 1 1 10W R940 RST CHIPR 33K OHM 1 1 10W R806 RST CHIPR 3 6K OHM 1 1 10W R809 RST CHIPR 3 6K OHM 1 1 10W R813 RST CHIPR 3 6K OHM 1 1 10W AW R827 RST CHIPR 3 6K OHM 1 1 10W R927 RST CHIPR 3 6K OHM 1 140W CN R808 RST CHIPR 47 KOHM 1 4 i0W gt R820 RST CHIPR 47 KOHM 1 1209 7 R802 RST CHIPR 51 KOHM X196 4 10W R807 RST CHIPR 68K OHM 195 1 10W R837 RST CHIPR 68K OBM 1 1 40W R841 RST CHIPR68K OHM 1 1 10W R853 RST CHIPR 68 OHM 1 1 10W R804 1SLCHIPR400 OHM 5 1 8W R911 OHM 5 1 8W R917 061G0805102 RST CHIPR4K OHM
12. POWER BOARD G2664 A 2 X 1 080808 CN803 WAFER CN804 WAFER E 903 PC123Y22FZ0F 8901 8 R908 100 5 2W R914 0 27 OHM 5 2W NON V C904 X2 CAP 0 22UF K275VAC 77 C903 X2 CAP 0 22UF 275VAC C801 15 5 51 27 C901 Y2 1000PF M 250VAC C902 Y2 1000 M 250VAC C921 4700PF 20 C905 100uF 450 18 35mm C802 067G215D4714KV MEDOC 470UF 25V ED SERIES C917 067G215D6814KV 105 C 680uF M 25V C918 067G215D6814KV 105 C 680uF 25V C939 067G21581024KV V EC 105 C CAP 1000UF M 25V C915 067621894713KV EC 105 C CAP 470UF M 16V 1901 0736 17465 H1 LINE FILTER 26mH MIN L901 0736 17465 1 LINE FILTER 26mH MIN L903 0736 253191 L CHOKE COIL 1 1uH 007802 CHOKE COIL 1 1uH 007802 XFMR INVERTER 740mH DADON X FMR 740 504170157 POWER 650 5 YUVA AC INLET ST 01DG B2K K L904 073 253191 801 08061197124 H 801 080GL19T 24 YS T901 080GL19T501 N CN901 087G 50137 S BD901 093G 50460 28 BRIDGE DIODE KBP208G LITEON D907 093G3006 1 1 31DQ06FC3 INTER CN902 095G 825 9D502 WIRE HARNESS 9P SCN 9P 220MM CN902 095G 825 9J502 WIRE HARNESS 9P SCN 9P 2nd source 48 19 LCD Color Monitor Lenovo L1900P 705GQ757004 0901 ASS Y 051G 200 1 OIL FOR DISAPPEAR IC801 IC TL494IDR SOIC 16 DM 901 TEA1530AT N2 so 8 nxp Q801 PMBS3904 PHILIPS SMT 04
13. September 16 2008 Sheet 4 of 6 20 19 LCD Color Monitor Lenovo L1900P vec VDDP FB403 1 VCC3 3 FB401 AVDD VCC3 3 FB402 VPLL 4 1 0 OHM 5 1 8W 412 90890 Add cao Del 209 4n o rrtev caor 0 1uF 16v 10uF 50V 405 10uF 50V 27227 0 1uF 16V VMPLL 18 0 tuF 16V VMPLL m 7 I orm 271 PAD A OH 5 pew 1 1 DSUB_G 0 tuF 16V 0 1uF 16V x cat 1 08086 O tukrtev 1 1 DSUBLB 1 10 1 50 1 0061 86 ARE 1 1 RON 1 RXIP 3 opc WP 1 RXIN 1 ROP 1 RON 3 A 1 RICP 1 RXCN x 1 ud Lone 1 005628 Wo R401 OHM 1 16W o tuF 16v 20K OHM 1 16W iii T EE WP Q406 E Rago R445 100R 1 16 5 OHM 1 16W 5 0 22uF16V
14. Y 160 20 3 Into Factory mode of Lenovo 1 1900 4431 1 81 Press the MENU button pull out the power cord ane ther plug the power cord Then the factory OSD will be at the left top of the panel 4 Bias adjustment Set the Contrast to 50 Brightness xt to 80 5 Gain adjustment Move cursor to F and press MIENU key A Adjust Reddish 6500K color temperature 1 Switch the chroma 7120 to RGB Mode with press MODE button 2 Switch the MEM channel to Channel 3 with up or down arrow on chroma 7120 3 The LCD indicator on chroma 7120 will show x 313 20 y 329 20 Y 180 20cd m 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 reachedthe 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 39 19 LCD Color Monitor Lenovo L1900P B Adjust Default 7200K color temperature 1 Switch the chroma 7120 to RGB Mode with press MODE button 2 Switch the MEM channel to Channel 4 with up or down arrow on chroma 7120 3 The LCD indicator on chroma 7120 will show x 302 20 y 318 20 Y 180 20cd m 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 indi
15. 03363802 9 WAFER RIGHT ANELE PITCH CN301 033G801930F CH JS CONNECTOR C419 067G 3151007KV 10UF M 50V 105 C KINGNICHI CN101 0886 35315 D SUB 15PIN 2nd source CN101 088G 35315F HD D SUB CONN F ATTACHED SCREW CN102 088G 35424F D DVI 24PIN CONN F ATTACHED SCREW CN102 088G 35424F N DVI 24PIN CONN WITH SCREWS 2nd source 401 0936 2253 14 31818MHZ 32PF 49US C402 067G 3151007KB EC 10uF M 50V 5 11 C305 067G 3151014KB EC 100uF M 25V 6 3 11 C707 067G 3151014KB EC 100uF 25V 6 3 11 42 19 LCD Color Monitor Lenovo L1900P C706 067G 3151014KB 100uF 25V 6 3 11 C704 067G 3151014KB 100uF 25V 6 3 11 0105 ESD 21015 045 0106 ESD 71015 04 DM U107 IC ESD 71015 04 U103 ESD 2 199 045 SOT23 6L C U104 ESD AZC199 04S SOT23 8L gt U105 IC ESD 2 199 045 5072265 U106 IC ESD 2 199 045 50723 67 U107 IC ESD 2 199 045 5 2123 U403 IC M24CO4 WMN6TP SOB U402 SST25LF020A 33 4C SAE U701 1117 0701 KEC 2N3004S RTK PS Q302 K C 2N3906S RTK PS 0702 0576 41722 T TRA KN2907AS 60V 0 6A SOT 23 0703 057641722 T NEN KN2907AS 60V 0 6A SOT 23 0701 057 417511 VT MB T3904 Q302 057G 417512 V MMBT3906 R126 RST CHIPR 10 OHM 4 596 1 16W R101 RST CHIPR 100 OHM 5 1 16W R105 061G0402101 RST CHIPR 100 OHM 5 1 16W 43 19 LCD Color Monitor Lenovo L1900P R109 0
16. 5 1 8W R929 06160805102 RSTCHIPR1K OHM 5 1 8W R938 06160805103 NV CHIPR 10K OHM 5 1 8W R916 06160805152 RST CHIPR 1 5 KOHM 5 1 8W R825 06160805220 RST 22 OHM 5 1 8W R829 06150805220 RST 22 OHM 5 1 8W R839 06160805220 RST 22 OHM 5 1 8W R850 061G0805220 RST CHIPR 22 OHM 5 1 8W R912 061G0805220 2F RST CHIPR 22 KOHM 1 1 8W R915 061G0805224 RST 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 R967 061G1206000 RST 0 OHM 5 1 4W JR901 061G1206000 RST CHIPR 0 OHM 5 1 4W JR802 061G1206000 RST 0 OHM 5 1 4W JR801 061G1206000 RST 0 OHM 5 1 4W F902 061G1206000 RST 0 OHM 5 1 4W 50 19 LCD Color Monitor Lenovo L1900P F801 061G1206000 4 RST CHIPR 0 OHM 5 1 4W R910 061G1206100 RST CHIPR 10 OHM 5 1 4W R909 RST CHIPR10 OHM 5 1 4W R923 RST CHIPR 1k OHM 5 1 4W R922 RST CHIPR 1k OHM 5 1 4W E R921 RST CHIPR 1k OHM 5 1 4W R812 RST CHIPR 33 OHM 5 14W R855 RST CHIPR 33 OHM 5 4 AW gt T R932 RST CHIPR 4 7K OHM 5 HANN 7 R933 RST CHIPR 4 7K OHM 2 595 1 4 R904 RST CHIPR 4 7K OHM 596 1 4W R903 RST CHIPR 680K 25 1 4W R902 RST CHIPR 680K 5 1 4W R901 RST CHIPR 680 5 1 4W C819 CHIP 0 01UF 46V X7R C823 C IIP 0 01UF 16V X7R C834 06
17. Hz 1152 x 864 Hz 1152 x 900 66 2 1280 1024 60 Hz 70 Hz 72Hz 75Hz 76Hz 4 3 Panel Specification 4 3 1 General Features LM190EO08 TLJ1 is a Color Active Matrix Liquid Crystal Display with an integrai Cold Cathode Fluorescent Lamp CCFL backlight system The matrix employs a Si Thin Film Transistor as the active element It is a transmissive type display operating in the normally white mode It has a 19 0 inch diaganally measured active display area with SXGA resolution 1024 vertical by 1280 horizontal pixel array Each pixel is divided into Red Green and Blue sub pixels or dots which are arranged in vertical stripes Gray scale orthe brightness of the sub pixel color is determined with 8 bit gray scale signal for each dot thus oresenting a palette of more than 16 7M colors with Advanced FRC Frame Rate Control It has been designed to apply the interface method that enables low power high speed low EMI FPD Link or compatible mustbe used as LVDS Low Voltage Differential Signaling chip It is intended to support applications where thin thicKness wide viewing angle low power are critical factors and graphic displays are important In combinationavith the vertical arrangement of the sub pixels the LM190E08 TLJ1 characteristics provide an excellent flat display for office automation products such as monitors 4 3 2 Display Characteristics Active screen size 19 0 inches 481 9mm diagonal Outline D
18. LABEL 90X120 2 The BOMs of 2 T9RGM6DBKCH2HC are the same as T9RGM6DKKCH2HC s 53 19 LCD Color Monitor Lenovo L1900P 12 Different Parts List Diversity of T9RGM6DCKCH2HC Compared with T9RGM6DKKCH2HC Q40G000260830A INDIA STICKER LABEL Diversity of T9RGM6DLKCH2HC Compared with T9RGM6DKKCH2HC 089G412A18NLSB POWER CORD Diversity of T9RGM6DJKCH2HC Compared with T9RGM6DKKCH2HC Location Description poma POWER CORD Location Part No for TPV Description 041G780062521A 1 PAPER Remark 041G780062522A COE 089G401A18NLSB POWER CORD Q41G780062523B WARRANTY CARD 045G 76 2882525 PE BAG FOR MANUAL Diversity of TIRGMEDBKCH34HC Compared with T9RGM6DKKCH2HC 0 89G404A18NLSL POWER CORD Diversity of T9RGM6DBKCH5HC Compared with T9RGM6DKKCH2HC 089G404A18NLSL POWER CORD Q33G0248 IDA1L0100 KEY PAD L1900P Q34G0490 0 150130 BEZEL L1900P Q40G 19N60842A RATING LABEL 54
19. Pad Board normally Check Main Board 38 19 LCD Color Monitor Lenovo L1900P 9 White Balance Luminance Adjustment Approximately 30 minutes should be allowed for warm up before proceeding white balance adjustment Before started adjust white balance please set the Chroma 7120 MEM Channel 3 to Reddish 6500K color MEM Channel 4 to Default 7200K color MEM Channel 9 to Bluish 9300K color and MEM Channel 10 to sRGB color our Reddish color parameter is x 313 20 y 329 20 Y 180 20 Default color parameter is x 302 20 318 20 180 20cd m 5 Bluish color parameter is x 283 20 297 20 Y 180 20 sRGB color parameter is x 313 20 329 20 Y 180 20cd m How to setting MEM channel you can reference to chroma 7120 user guide or simple use SC key and NEXT Key to modify xyY value and use ID key to modify the TEXT description Following is the procedure to do white balance adjust 2 Setting the color temp you want A MEM CHANNEL 3 6500K Reddish color Reddish color temp parameter is x 313 20 329 20 180 20cd m B MEM CHANNEL 4 7200K Default color Default color temp parameter is x 302 20 318 20 Y 180 20cd m C MEM CHANNEL 9 9300K Bluish color Bluish color temp parameter is x 283 20 297 20 180 20cd m D MEM CHANNEL 10 sRGB color sRGB color temp parameter is x 313 20 y 329 20
20. and blue Brightness Contrast can t be adjusted in SRGB Preset mode Reddish s RGR Bluish Custom 1 Red Increases or decreases the saturation of red in the image Green Increases or decreases the saturation of green in the image Blue Increases or decreases the saturation of blue in the image Save Saves the custom color choices This monitor can accept video signals through two 1542 different connectors Most desktop computers use a D SUB connector Select digital among OSD Controls when you use DVI connector Selects D SUB Analog Selects DVI Digital Options 1 Information Shows resolution refresh rate and product details Note This screen does not allow any changes to the settings anguage This section lists the languages supported by your monitor Note The language chosen only affects the language of the OSD It has no effect on any software running on the computer Input video signal 19 LCD Color Monitor Lenovo L1900P OSD Icon on Main Menu Submenu Description Options E Menu Position Menu position adjusts menu location on the screen Default Default returns the menu position to the default settings Custom Horizontal Changes the horizontal position of the OSD Vertical Changes the vertical position of the OSD Save
21. 19 LCD Color Monitor Lenovo L1900P Service Service ENERGY STAR Horizontal Frequency 30 81 KHz TABLE OF CONTENTS Description Page Descriptio 2 Table of 1 Revision List a 2 Important Safety 3 1 Monitor AA 2 LCD Monitor 11 BOM List 12 Different Parts List SAFETY NOTICE ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES CAUTION USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING 19 LCD Color Monitor Lenovo L1900P Revision List Version Release Date Revision History TPV Model Name T9RGM6DKKCH2HC T9RGM6DMKCH2HC T9RGM6DBKCH2HC A00 Sep 25 2008 Initial release T9RGM6DCKCH2HC T9RGM6DLKCH2HC T9RGM6DJKCH2HC T9RGMGDBKCHS3HC A01 Oct 30 2008 Add new BOM TORGM6DBKCH4HC T9RGM6DBKCH5HC 19 LCD Color Monitor Lenovo L1900P Important Safety Notice Proper service and repair is important to the safe reliable operation of all Lenovo Company Equipment The service procedures recommen
22. 5G0603103 12 DORP 0 01UF 16V X7R C842 06560603103 12 CHIP 0 01UF 16 X7R 0656060310312 gt CHIP 0 01UF 16V X7R C825 0656060310422 7 CAP CHIP 0603 0 1UF K25V X7R C821 06560603104 22 C839 065G0805102 31 C928 065G0805122 31 CHIP CAP 0805 1200 J 50V NPO 51 19 LCD Color Monitor Lenovo L1900P C820 06560805221 31 CHIP 0805 220PF J 50 NPO C909 065G0805224 32 0 22UF K 50V X7R D802 DIO SIG SM 99 PHSE R D801 DIO SIG SM BAV99 PHSE R 20922 RLZ5 1B 1105 0916 1N4148W DM D915 1N4148W D903 1N4148W XN CT D817 1N4148W NS D814 1N4148W SON D813 1N4148W 2 7 CN901 EYELET AAS NR901 1 5 IC904 AP431V 92 ATC _ IC904 KIA431A ATIP TO 92 C938 CERAMIC CAP C906 1 ENEJ2KV 10 908 067G215Y2207KT GAP 465 C 22UF 50V KINGNICHI FBo01 0716 5529 FERRITE BEAD F901 084G 55 1W 4A 250 Wickmann D901 0930 6038P52T PS102R DI 52 19 LCD Color Monitor Lenovo L1900P Q34G0493 FM 1S0100 HAND TOP COVER L1900PPP Q45G 88606 22 PE BAG 270 260MM EPE BAG FOR MONITOR PE BAG FOR LENOVO BIG CARTON FOR LENOVO 1 0 30 2 5 180 3 0 65 0 05 F1010HA 30P BK N 1 0 19 0 sm 040G 58162435A P N MANUAL BAG 040G 582625 2A S N LABEL AGEL Q40G 19N60843A RATING LABEL Q40G 19N60844A NN RATING LABEL Q40G0001850 2A N CARTON
23. 61G0402101 RST CHIPR 100 OHM 5 1 16W R11 061G0402101 RST CHIPR 100 OHM 5 1 16W R415 RST CHIPR 100 OHM 5 1 16W R409 RST CHIPR 100 OHM 5 1 16W DM R119 RST CHIPR 100 OHM 4 596 1 16W R118 RST CHIPR 100 OHM 5 146 C 7 R117 RST CHIPR 100 OHM 5 4 18W gt R115 RST CHIPR 100 OHM 5 R114 RST CHIPR 100 OHM 5 4 460 R113 RST CHIPR 100 5 1 16 R706 RST CHIPR 1 KORM 5 1 16W R104 RST CHIPRA 2 5 1 16W R103 RST CHIPR T KOHM 5 1 16W R705 5 10 KOHM 5 1 16W R703 RST CHIPR 10 KOHM 5 1 16W R702 061G0402103 RST CHIPR 10 KOHM 5 1 16W R442 06160402103 7 851 CHIPR 10 KOHM 5 1 16W R441 061G0402103 NV CHIPR 10 5 1 16W R440 06160402103 gt RST CHIPR 10 KOHM 5 1 16W R448 061G0402203 RST CHIP 20K 1 16W 5 44 19 LCD Color Monitor Lenovo L1900P R106 061G0402222 RST CHIPR 2 2 5 1 16W R107 061G0402222 RST CHIPR 2 2 5 1 16W R443 RST CHIPR 3 9KOHM 1 1 16W R444 RST CHIPR 3 9KOHM 1 1 16W R138 RST CHIPR 4 7 KOHM 5 1 16W R302 RST CHIPR 4 7 KOHM 5 1 16W DM R704 RST CHIPR 4 7 KOHM 5 1 16W R304 RST CHIPR 47 KOHM 5 1167 C 7 R139 RST CHIP 6K8 1 16W 596 bur R410 RST CHIP 6K8 146 5 S R116 RST CHIPR 75 OHM 5 146 R112 RST CHIPR 75 OHM 3 596 1 16W R108 RST CHIPR 75 4 595 1 7161 R102 RST CHIPR 0 OHM 225 1 10W FB403 RST CHIPR OOM 5 1 8W FENGH
24. 63 989 BEAD POWER XFMR 2 1000 25 1K5 1 10W 1 vec DRAIN Dang 2 14148 16 lt lt 3 PROTECTDRIVER 4 36K 1 1710W 0 22uF 275V CTRL SENSE F 1 71 0901 EV Y 20922 4 1 STP10NKTOZFB RLZ15B RLZ5 1B 1 901 R910 10903 2 025 0806 1 4 TEA1530AT 1 4W R938 gt 128 2 2 1K THOW 1 C902 C901 R917 10K 1 8W 1000pF 1000pF 1K 1 8W e NN 1 4 Coi R912 VN D915 1uF 25 R915 22K 1 1 8W INA148W INA448W 220K 1 ew 924 0 01dF A A CST R913 C909 R914 R911 NC 0 22uF 50V 0 27 2W 1K 1 8W R926 R942 Hon 10904 10K 1 10W 1K 1 10 1 APA31VLA A R916 AN 1K5 1 8W T T 4 3116 1 925 1 N NC R930 24K 1 1 10W 9 C903 R931 928 C921 0 22uF 275V 1 8W 0 0012uF 0 0047UF 400V bi 7 6 4 4 1 5 A T 4 CN902 3 CONNECTOR 903 R902 R901 2 1 4W 680K 1 4W 680K 1 4W C931 C930 0 1uF LN A Eg A NR901 oNTCR F901 4A 250V Top Victory Electronics Co Ltd 11900 Size B 62664 1 2 1 080901 PWPC8921LQBZ Rev 1 Key Component 01 Cover 71562664 1 2 KE Date Sheet 1 o 3 22 19 LCD Color Monitor
25. LCD monitor will contain a main board a power board and a key board which house the flat panel control logic brightness control logic and DDC The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips Monitor Block Diagram each voltage CCFL Drive Flat Panel and CCFL backlight Power board Main Board Include adapter inverter dat aaa aaa ea noa A aa a aa oi Video signal DDC AC IN 5 100 240 HOST Computer 19 LCD Color Monitor Lenovo L1900P 3 Operating Instructions 3 1 General Instructions Press the power button to turn the monitor on or off The other control buttons are located 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 Control Description Input Change Switehes the video input source Image Setup Activ tes automatic image adjustment Brightness Direct access to Brightness adjustment 19 LCD Color Monitor Lenovo L1900P 3 3 OSD Menu The setting adjustable with the us
26. ONN Q302 2N3906S RTK PS N PANEL VCC 330 OHM 1 4W 0 1uF 16V 0 OHM 5 1 8 C305 100uF25V or 4011 TPV Top Victory Electronics Co Ltd MODELU Lenovo 11900 KE lt ME gt Tuesday September 16 2008 3 of 6 19 19 LCD Color Monitor Lenovo L1900P VCC1 8 1 C710 0 tuF 16 FB702 E 5 CN701 27 705 _ c704 1 8 3468 2 0701 0 1uF 16V 100uF25V 3 2 KN2907AS R705 5 BKLT VBRI R709 1 6 BKLT EN R71Q NC NC 10K 1 16W 5 8 vn 10 2 0703 R706 9 Mute 1 KVolume 2 R KN2907AS BKL_VBRI Mute 2 VCC3 3 gt gt adj_BACKLIGHT 2 300 OHM R708 T 1K 1116W 5 5 FB704 NC CONN n 701 AAA lock type 712 lt FOR R701 0805 1 4W DGND 123 DVI_5V DSUB 5V VCC3 3 VCC3 3 D702 54 1 R702 10K 1 16W 596 R703 P8701 BKLT EN 10K 1 16W 5 C711 SS OY C702 0 1uF 16V 7 MVCC VCC3 3 NC 3 0701 4 1 16W 5 2N3904S RTK PS 707 C709 100uF25V 0 1uF 16v 100uF25V ALY 7 Victory Electronics Co Ltd OEM MODEL Lenovo 11900 Size B A G2883 1C 3 X13 080916 TPV MODEL T98 Rev 1A Key Component 4 0 POWER PCB NAME m KE lt gt Date Tuesday
27. RGB value meet the tolerance 100 2 E the Power button off to quit from factory inode 40 19 LCD Color Monitor Lenovo L1900P 10 Monitor Exploded View CRIPTIUN od 9 10 12 13 14 15 16 2 17 lift hinge 18 Base 19 Bose 20 FOUT 6 5 wrapper QTY UNIT 4 Si 2 PCS 23 KEY BOARD 5 4 PCS 24 PANEL 53 4 PCS 25 MAIN BOARD 54 4 5 5 26 POWER BOARD 56 4 41 19 LCD Color Monitor Lenovo L1900P 11 BOM List T9RGM6DKKCH2HC Location Part No Description Remark 070GHDCP500HDC E08902 SIGNAL CABLE D SUB COMLINK E08902 D SUB CABLE 1800 YW0308 ES gt 2nd source 08902 SIGNAL CABLE 2nd source E08903 SIGNAL CABLE DVI COMLINK CXS and source E08903 SIGNAL CABLE DVI GREATLAND 2nd source 08903 POWER CORD SAK E09502 HARNESS 6 6 260MM 2nd source 09502 HARNESS 6 260MM SCREW M3X6 SCREW 42 D020523 750 PANELLM190E08 TLJ1 KR LGD E750 750GLG190E8J23NOL X PANEILM190E08 TLJ2 GZ LGD 2nd source 756GQ8CB LLO15 BOARD CBPCRM6G9QA 0402 05661133 81 V 8sr25LF020A 33 4C SAE SMTCR U402 400GLMG9003N11 MCU ASS Y 056G1133 81 040 45782412 CBPC LABEL CN402 03363802 6 WAFER CN701
28. UA R305 5 0 OHM 5 1 8W FENGHUA R403 RST CHIPR 0 OHM 5 1 8W FENGHUA R701 061G1206000 l RST CHIPR 0 OHM 5 1 4W R301 06161206331 7 RST CHIPR 330 OHM 5 1 4W C107 0560402102322 1000 10 50V X7R C121 065G040210232 1000PF 10 50V X7R 122 0656040210232 710 06560402104 12 407 06560402104 15 0402 0 1UF 16V X5R 45 19 LCD Color Monitor Lenovo L1900P C408 06560402104 15 MLCC 0402 0 1UF K 16V X5R C709 06560402104 15 MLCC 0402 0 1UF K 16V X5R C418 0402 0 1UF 16V X5R C417 MLCC 0402 0 1UF K 16V X5R DM C445 0402 0 1UF 16V X5R C414 0402 0 1UF 16V X5R EN C413 MLCC 0402 0 1UF K 16V X5R C412 0402 0 1UF 16V SOX C411 0402 0 1UF 16V 410 0402 0 1UF K 18V X5R C409 MLCC 0402 0 1UF K 16V X5R C104 CHIP 22PF 50V gt C103 CHIP 225 50V NPO C423 CAP GER 0 22UF 20 80 C401 CAP CER 9 22UF 20 80 C421 065G0402470 31 MUCC 0402 47PF J 50V NPO C420 065G0402470 31 NETS 0402 CAP 47PF J 50V NPO C102 06560402473 12 0 047uF 16V X7R C106 0656040247342 7 CHIP 0 047uF 16V X7R C108 0656040247312 114 06560402473 12 FB105 0716 596301 3000 46 19 LCD Color Monitor Lenovo L1900P FB107 071G 59G301 CHIP BEAD 3000HM FB108 071G 59G301 CHIP BEAD 3000HM FB109 071G 59G301 CHIP BEAD 3000HM
29. ace Panel 0401 Check Correspondent component OK 35 19 LCD Color Monitor Lenovo L1900P 8 2 2 Power Inverter Board 1 No power Check CN902 pin4 5 12V NG Check AC line volt 110V or 220V NG OK Check the voltage of C905 OK Check start voltage for the pin8 of IC901 NG OK Check AC input Check bridge rectiiiea circuit and F901 circuit Check R904 R932 R933 and Check IC901 Check the auxiliary voltage is bigger than 10V and smaller than 20V 1 Check 12901 OK NG 2 Check IC901 over current protect circuit Check 12901 6 wave 901 Check 0901 20921 20922 D915 0916 IC903 and 12904 36 19 LCD Color Monitor Lenovo L1900P 2 W LED No Backlight Check CN902 pin4 5 12V OK NG Check ON OFF signal OK Check adapter or MB Check Interface board Check IC801 PIN12 12V OK S 0808 0805 OK 2 Check 0801 0804 0811 0812 and 0802 Check the output of T801 OK Check connecter amp lamp Change T801 37 19 LCD Color Monitor Lenovo L1900P 8 2 3 Key Board OSD is unstable or not working N Is Key Pad Board connecting normally Connect Key Pad Board Replace Button Switch N ES NV Replace Key Pad Board Le Is Button Switch normally Is Key
30. cator reachedthe 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 Adjust Bluish 9300 color temperature 1 Switch the Chroma 7120 to RGB Mode with press MODE button 2 Switch the MEM Channel to Channel 9 with up or down arrow on chroma 7120 3 The LCD indicator on chroma 7120 will show x 283 20 297 20 Y 180 20 d in 4 Adjust the RED on factory window until chroma 7120 indicator reached the value R5400 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 100 7 Repeat above procedure item 4 5 6 until chroma 7120 RGB value meet the tolerance 100 2 D Adjust sRGB color temperature 1 Switch the chroma 7120 to RGB Mode with press MODE button 2 Switch the MEM channel to Channel 10 with up down arrewon chroma 7120 3 The LCD indicator on chroma 7120 will show x 313 20 y 329 20 180 20cd m 4 Adjust the RED on factory window until chroma 7420 indicetor reached the value R 100 5 Adjust the GREEN on factory window until chronia 7120 indicator reachedthe value G 100 6 Adjust the BLUE on factory window until 7120 indicator reached the value B 100 7 Repeat above procedure item 4 5 6 7120
31. ded by Lenovo and described in this service manual are effective methods of performing service operations Some of these service operations require the use of tools specially designed for the purpose The special tools should be used when and as recommended It is important to note that this manual contains various CAUTIONS and NOTICES which should be carefully read in order to minimize the risk of personal injury to service personnel The possibility exists that improper service methods may damage the equipment It is also important to understand that these CAUTIONS and NOTICES ARE NOT EXHAUSTIVE Lenovo could not possibly know evaluate and advise the service trade of all conceivable ways in which service might be done or of the possible hazardous consequences of each way Consequently Lenovo has not undertaken any such broad evaluation Accordingly a servicer who uses a service procedure or tool which is not recommended by Lenovo must first satisfy himself thoroughly that neither his safety nor the safe operation of the equipment will be jeopardized by the service method selected Hereafter throughout this manual Lenovo Company will be referred to as Lenovo WARNING Use of substitute replacement parts which do not have the same specified safety characteristics may create shock fire or other hazards Under no circumstances should the original design be modified or altered witnout written permission from Lenovo Lenovo assumes no liability e
32. eck Signal Cable message And go into standby mode after the message disappears 18 Process the OSD display 19 Read the keyboard Is the power key pressed 15 19 LCD Color Monitor Lenovo L1900P 5 2 Electrical Block Diagram 5 2 1 Main Board Panel Interface Crystal X401 CN301 14 31818MHZ EEPROM U403 Scalar TSUM5PFHL LF M24C04 WMN6TP Include MCU ADC OSD Keypad Interface U401 CN402 RX C P Flash Memory U402 RX C N SST25LF020A 33 4C SAE DDC_SCL DDC_SDA HPD SN DVI HPD D Sub Connector CN101 DW bConnector CN102 ESD U107 7 099 04 DDC_SCL DDC_SDA VGA_R VGA_G VGA_B VGA_SCL VGA_SDA RXCP Oed ESD 1103 ESD 9105 ESD 0106 AZC099 04S 2 099 045 2 099 045 ESD 0104 2 099 045 16 19 LCD Color Monitor Lenovo L1900P 5 2 2 Inverter Power Board AC input Bridge Rectifier Rectifier Transformer diodes EMI filter and Filter Start Circuit R904 R932 R933 CN902 PWM Feedback Control IC Circuit ON OFF Output Circuit Feedback Circuit Control CorittoNC 8012 DIM Over Voltage 17 19 LCD Color Monitor 6 Schematic 6 1 Main Board 715G2883 1 6 Lenovo L1900P
33. er Alignment Tool LCD Color Analyzer Service Manual o Noc WD User Manual 32 Lenovo L1900P 19 LCD Color Monitor Lenovo L1900P 8 2 Trouble Shooting 8 2 1 Main Board 1 No Power Press power key and look if the picture is normal Please reinsert and make sure the AC of 100 240 is normal NG Reirisert or check the Adapter Inv rter section Measure U701 PIN2 3 3V Measure 0703 Vconector 1 8V NG r Replace 0701 0702 0703 OK 22 401 oscillate waveform are normal N OK LA E Replace X401 Y Replace 0401 33 19 LCD Color Monitor Lenovo L1900P 2 No Picture The button if i X401 oscillate Replace X401 under control waveform is normal Check reset circuit of Check Correspondent cornponent Measure 0701 2 3 3 0401 is normal Measure Q703 1 8V SNC Replace U401 Replace U701 Q702 Q703 X401 oscillate waveform is normal Jp Replace X401 b Check HS VS from 1 CN101 is normal IG Check Correspondent OK component Replace 1 401 34 19 LCD Color Monitor Lenovo L1900P 3 White screen Measure Q302 base X401 oscillate waveform is normal is low level Replace X401 Check Q302 and Q301 are broken or CN301 solder E Check reset circuit of 0401 1 LONG Check Correspondent f component ON Repl
34. er controls are viewed through the On Screen Display OSD as shown below To use the controls 1 Press 4 to open the main OSD menu 2 Use or 29 to move among the icons Select an icon and press 1 to access that function If there is a sub menu you can move between options using or gt then press to select that function Use to make adjustments Press 4 to save 3 Press to move backwards through tbe sub menus and exit from the OSD 4 Press and hold for 10 seconds to lock the OSD This will prevent accidental adjustments to the OSD Press and hsl si for 10 seconds to unlock the OSD and allow adjustments to the OSD 5 Enables DDC CI by default Use OSD Exit Key Press and hold the C buttons for 10 seconds to disable enable DDC CI function The words DDC CI disable shows on the screen 19 LCD Color Monitor Lenovo L1900P OSD function OSD Icon on Main Menu Submenu Description Adjusts overall brightness Brightness Contrast Gone Adjusts difference between light and dark areas Position Horizontal Position Moves the image left or Imag O down Automatic Automatically optimizes the Image Setup image 80 Manual Manually optimizes the image See Manual image setup on page 3 3 Clock Phase Image Properties E Color Adjusts interisity of red green
35. imension 396 0 H x 324 0 V x 15 5 D mm Typ Pixel Pitch 0 098 RGB H mm x 0 294 V mm 1280 horizontal By 1024 vertical Pixels RGB stripe arrangement R L 170 Typ U D 160 Typ Total 14 3W Typ 4 5W V 9 75WGlg 7 5mA 2 4509 Transmissive mode normally White 11 19 LCD Color Monitor 4 3 3 Optical Characteristics Lenovo L1900P Parameter Symbol Units Min Typ Max Contrast Ratio CR 500 800 Surface Luminance white 200 250 cd m Luminance Variation 75 Rise Time Trp 1 3 2 6 ms Response Time E Decay Time Trp 3 7 7 4 ms Rx 0 640 RED 0 335 0 298 GREEN T Color Coordinates Gy Typ 0 608 CIE1931 Bx 0 03 0 147 9 03 lt By 0 070 0 313 WHITE Wy 0 329 Viewing Angle gt 5 x axis right 0 er 75 88 Degree x axis left 1807 el 75 88 y axis up 90 70 85 axis down 270 70 85 Viewing Angle gt 10 axis 0 70 85 Degree x axis left 180 ol 70 85 axis up 90 gu 60 75 y axis down 270 70 85 Crosstalk 1 5 Luminance uniformity 03 LR E 2 1 7 Color grayscale linearity Au v 0 018 12 19 LCD Color Monitor 4 3 4 Electrical Characteristics 1 TFT LCD Lenovo 1 1900 2 Back
36. light MODULE Power Supply Input Voltage Vicp 4 5 5 0 5 5 Vdc Permissive Power Input Ripple 0 2 Power Supply Input Current LCD MOSAIC 904 CD BLACK 1 090 1 260 Power Consumption Picp 4 5 5 18 Watt Inrush current InusuH 3 0 LAMP Operating Voltage Vnus Operating Current 3 0 7 5 8 0 Established Starting Voltage Vs S gt at 25 1 100 at 0 C 1 400 7 Operating Frequency fa 40 70 kHz Discharge Stabilization time 3 Min Power Consumption 9 75 10 73 Watt Life Time 50 000 Hrs 13 19 LCD Color Monitor Lenovo L1900P 5 Block Diagram 5 1 Software Flow Chat 19 LCD Color Monitor Lenovo L1900P 1 2 MCU initializes Is the EPROM blank 3 Program the EPROM by default values 4 Get the PWM value of brightness from EPROM 5 Is the power key pressed 6 Clear all global flags 7 Are the AUTO and SELECT keys pressed 8 Enter factory mode 9 Save the power key status into EPROM Turn on the LED and 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 NC 13 Does the scalar send out an interrupt request PCM 14 Wake up the scalar 15 Are there any signals coming from analog port 16 Display No connection Ch
37. sday September 16 2008 Sheet o 6 21 Lenovo L1900P 19 LCD Color Monitor 6 2 Power Board 715G2664 1 2 100 1 4W R918 F902 OROS 1 4W 100 1 4WR919 T T T 1 1904 T C912 1 1uH 0 001uF x x x x 20902 100 1 4w 5 D 2 E RLZ15B cot cote 680uF 25V 7 N 680 25 2 922 NC A ETT 1 Nreo1 1 3 R929 T 3 8 8 1K 1 4W 20901 4 9 D906 Ne SP10100 Pius BD901 A R904 R995 C906 R90 y 2 114W NC 1800 2 100 205 7 R935 100 1 4W 3 1 4 Q902 R936 938 1 C905 53904 NC 2 3 0 0015uF 2KV 100uF 450V D905 C929 NC R967 6 11 R961 100 1 4W 0 0011 OROS 1 4W R932 R906 0900 Ar A 1 4W NC PR1007R 1 1000V 101111 1 1 Os 1 1uH 7 0901 R909 R962 100 1 4W PS102R 108 1 4W 6 gets ole 1 8 TOuF16V ZI 916 4 4 0 1uF c908 a R940 ce07 22uF 50V R933 R907 D907 33K 1 10W 0 tuF 114W NC FB901 3 12 3100065
38. th may damage the panel 19 LCD Color Monitor 1 Monitor Specifications Dimensions Height Depth Width Lenovo L1900P 378 7 488 7 mm 14 9 1 19 24 in 241 1 mm 9 49 in 408 0 mm 16 06 in VESA mount Supported Power consumption Note Power consumption figures are for the monitor and the power supply combined Video input Analog Video input Digital Communications Supported Display Modes VESA Standard modes between noted ranges Temperature Tilt range Pivot anlge Swivel anlge Viewable image size Maximum height Maximum width Pixel pitch Normal operation Standby Suspend Off Input signal Horizontal addressability Vertical addressability Clock frequency Interface Input Signal Horizontal addressability Vertical addressability Clock frequency 0 30 0 90 45 45 100 mm 3 94 in Radial arm sold separately 481 9 mm 19 0 in 301 06 mm 11 9 in 376 32 mm 1455415 0 294 mm 00 Analog Direct Drive 75 ohm 1280 pixels 1024 lines 135 MHz DVI TMDS Panel Link 1280 pixels max 1024 lines max 135 MHz Horizontal frequency Vertical frequency 30 kHz 81 kHz 56 Hz 76 Hz Operating Storage Shipping 0 to 40 C 32 to 104 F 20 to 60 C 4 to 140 F 20 to 60 C 4 to 140 F 19 LCD Color Monitor Lenovo L1900P 2 LCD Monitor Description The
39. xpress 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 DIREC EXPOSURE TO BEAM CAUTION Use of controls or adjustments or performance of orecedures other than those specified herein may result in hazardous radiation exposure CAUTION The use of optical instruments with this product will increase eye hazard TO ENSURE THE CONTINUED 5 PRODUCT USE ONLY ORIGINAL MANUFACTURER S REPLACEMENT PARTS WHICH ARE LISTED WITH THEIR PART NUMBERS IN THE PARTS LIST SECTION OF THIS SERVICE MANUAL Take care during handling the CD module with backlight unit Must mount the module si g holes arranged in four corners Do not press on the pan l edge of the frame strongly or electric shock as this will result in damage to the screen Do not scratch or prezs en the panel with any sharp objects such as pencil or pen as this may result in damage to the panel Protect the module from the ESD as it may damage the electronic circuit C MOS Make certain that treatment person s body is grounded through wristband Do not leave the module in high temperature and in areas of high humidity for a long time Avoid contact with water as it may a short circuit within the module If the surface of panel becomes dirty please wipe it off with a soft material Cleaning with a dirty or rough clo
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