Acer AL512 AL512 Monitor Service Guide - Page 12

6.3. MCU 2 SDA 2 SCL VCC C152 0.1u VCC 8 I100 4 1 2 3 7 VSS A0 A1 A2 WP SCL SDA 6 5 24LC16B 8 PIN SOCKET P100 1 DDC-SCL 1 DDC-SDA P105 40 1 6 PLCC-44 SOCKET 18 28 17 29 39 7 C150 22p C151 22p SDA SCL X100 12MHZ 2 IRQ- ENTER MENU UP VCC C149 0.1u VCC 44 I105 35 EA/VP 21 X1 20 X2 RESET10 RESET 14 15 16 17 INT0 / P3.2 INT1 / P3.3 T0 / P3.4 T1 / P3.5 2 3 4 5 6 7 8 9 P1.0 / T2 P1.1 / T2EX P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 AD0 / P0.0 AD1 / P0.1 AD2 / P0.2 AD3 / P0.3 AD4 / P0.4 AD5 / P0.5 AD6 / P0.6 AD7 / P0.7 43 42 41 40 39 38 37 36 A8 / P2.0 A9 / P2.1 A10 / P2.2 A11 / P2.3 A12 / P2.4 A13 / P2.5 A14 / P2.6 A15 / P2.7 24 25 26 27 28 29 30 31 P3.7/ RD P3.6 / WR PSEN ALE P3.1 / TXD P3.0 / RXD 19 18 32 33 13 11 R197 4.7K R146 4.7K R198 R145 4.7K 4.7K R147 R148 4.7K NC R150 NC MUTE PWM1 LED_GREEN AMBER RESET_MASCOT 2 DC_EN1 Q101 SST3904/NC C066 22u / 16V 2.2K R076 R074 150 R075 150 R082 150 DDC-SCL1 1 DDC-SDA1 1 R083 150 VCC TxD RxD R189 4.7K INT2 / P4.3 INT3 / P4.2 P4.1 P4.0 22 VSS DOWN POWER R155 R156R157 R158 R159 R160 R161 R081 150 Winbond ISP 150 150 150 150 150 150 150 P LED_OR LED_GRN GND M U D E 8051PLCC FOR Winbond ISP J103 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 VCC C166 R194 0.1u 100K 12 1 34 23 2 R188 4.7K Q110 SST3904 EN_18V D113 MMBT3906 Q113 2 3 1N4148 R195 1 R196 4.7K RESET 2 C165 0.1u VCC C BE MMBT3906 R153Q1021 3 2 10K R162 1 10K R154 330 3 Q100 2 MMBT3906 R163 LED_GRN LED_OR 330 Audio control for LP14/AL512 only 3PIN 2mm J109 1 2 3 1 2 3 12V L115 3.5X9X0.8 PWM1 PWM1 + C289 470uF/16V C168 0.1u 2 C167 0.1u VCC R191 4.7K 4.7K R187 4.7K DC_EN1 R190 Q111 + SST3904 2 VDDCTRL NC R193 C171 NC 1 C153 C154 C155 C156 0.1u 0.1u 0.1u 0.1u VCC C157 0.1u R165 4.7K SCL SDA TxD RxD VCC R166 4.7K J104 10 9 8 7 6 5 4 3 2 1 10 9 8 7 6 5 4 3 2 1 2.2K + C164 1uF/50V VCC +3.3V R183 0 R184 NC R185 NC Q104 2SA1020 R172 LT1117CST-3.3 I112 3 VIN VOUT 2 1 GND 4.7K C209 0.1u L108 200 C212 0.1u 5V VCC L109 3.5X9X0.8 12V + C47208u2F/16V L113 3.5X9X0.8 R168 5pin/2mm 1K VDDD J1123450812345 4 R169 Brightness BLT_ON 2 1K Q109 + C288 C160 10uF/50V PWM0 2 470uF/16V SST3904 5 DC_EN MRT DEBUG I/O/NC 2.0 mm 2 VDDCTRL R171 R173 1K 3.3K Q103 SST3904 +3.3V L114 NC AL512/AL513 9/20/2002 -11-