Acer AL1916 AL1916p Service Guide - Page 63

5 4 3 2 1 VDD VDD R P 1 10K 5 4 DATA0 2 2 2 2 2 2 2 6 3 DATA1 R129 R128 R37 R38 R39 R40 R119 7 2 DATA2 8 1 DATA3 VDD 10K 10K# 10K 10K 10K 10K 10K R P 2 10K 1 1 1 1 1 1 1 21 VDD C39 C40 22pF D A TA[0 ..7 ] D 1 1 R42 R43 10K 10K 8 7 6 5 RP 3 10K 21 1 X2 R41 12MHz 1M C41 22pF 2 2 1 0 .1uF 44 35 Vcc EA 21 XTAL1 20 XTAL2 P0.0/AD0 P0.1/AD1 P0.2/AD2 P0.3/AD3 P0.4/AD4 P0.5/AD5 P0.6/AD6 P0.7/AD7 43 42 41 40 39 38 37 36 DATA0 DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DATA7 DAT A[0..7] 5 5 4 DATA4 6 3 DATA5 7 2 DATA6 8 1 DATA7 D 4 3 2 1 2 2 5 IN T 7 PANE L_VCTL 8 BLKT_EN+ 3,4 DDC- W P IN T PANE L_VCTL BLKT_EN+ 4 DCABLE- DETECT 3 ACABL E-DETECT DCABLE- DETECT ACABL E-DETECT IO -P L E D -Y R122 1 IO -P LED- G R123 1 20 20 RESET D D C -SDA- AR124 1 D DC -S C L-AR125 1 2 0# 2 0# R44 1 2 100 SC L R45 1 SD A R46 1 3 3 DDC- SCL-A DDC- SDA- A DDC -SCL-A D D C -SDA- A R126 1 R127 1 2 22 2 22 20 20 10 RST 11 13 14 15 16 17 P3.0/RxD P3.1/TxD P3.2/INT0 P3.3/INT1 P3.4/T0 P3.5/T1 2 3 4 5 6 7 8 9 P1.0/T2 P1.1/T2EX P1.2 P1.3 P1.4 P1.5 P1.6/SCL P1.7/SDA P2.0/A8 P2.1/A9 P2.2/A10 P2.3/A11 P2.4/A12 P2.5/A13 P2.6/A14 P2.7/A15 24 25 26 27 28 29 30 31 P3.6/WR P3.7/RD PSEN ALE 18 19 32 33 P4.0/PWM0 P4.1/PWM1 P4.2/PWM2 P4.3/PWM3 23 34 1 12 GND 22 KEY -ONO FF KEY -FUN+ K EY-FUNKEY -VAL -INC K E Y -VAL- DEC K EY-AUTO WR Z RDZ WP RESET_MASCOT RESET_MASCOT 5 WR Z 5 RD Z 5 ALE 5 C U4 C Mxic_MX10E8050AI QC 63 B P ower LED Pull high design VDD E 22 K 22K 22 K 22K L IO -PL E D-Y 3 C OLLECTOR D TA124EKA_PNP Q1 B D T A1 24EKA_PNP C R61 1 VDD 100 R1206D 2 H PLED- Y 1 A B ASE E MITTER IO -PL ED -G B C E Q2 D T A1 24EKA_PNP R64 100 R1206D 1 2 PLED- G 5 VDD C42 0 .1uF 12 U5 VCC Reset GND 3 2 1 LM810M3-2.93V RESET ACTIVE HIGH /RESET D IO/MA730 2 GN D R ESET 21 E EPROM C49 0 .1u F U6 SO-8 1 2 3 4 NC VCC NC WC NC SCL GND SDA 8 7 6 5 ST_M24C16-WMN6T VDD 1 1 R62 2.2K R63 2.2K 2 2 WP SC L SD A 4 K EY BOARD-INTERFACE VDD K EY PULL HIGN DESIGN B 1 1 1 1 1 1 CN 3 1 2 PLED- Y PLED- G 3 4 5 6 7 8 9 E&T 4300-9 R55 1 R56 1 R57 1 R58 1 R59 1 R60 1 2 33 2 33 2 33 2 33 2 33 2 33 KEY -O NO FF KEY -FU N+ K EY-FUNKEY -VAL -INC K E Y -VAL- DEC K EY-AUTO 2 R49 R50 R51 R52 R53 R54 10K 10K 10K 10K 10K 10K 2 2 2 2 2 C43 0 .1uF C44 0 .1 uF C45 0 .1u F C46 0 .1u F C47 0 .1uF C48 0 .1 uF 21 21 21 21 21 21 I 2C/RS232 Debug C onnector CN 4 1 2 3 4 VCC IO -P LE D -G T X D IO -PLE D-Y RXD E&T 4500-4# 3 *All Res. andCap. size is 0603. A *The mark "#" toindicate that Part disuse. C OM PAL E LEC TR ONIC S, INC." Ti tle S c he ma tic, CTRL/ B VL922, LAA698 S ize A3 Document Number 401ACQ R ev 0A D ate: Frid ay, A pril 22, 2005 S heet 6 of 8 2 1