Acer AL2023 AL2023W Service Guide - Page 54

A B C D E MCU_VCC 2005/11/08 3DVCC C Reset circuit 3DVCC 3DVCC 4 4.7K/6 R76 MCU_RST MCU_RST C52 NC/1U/16V/6 R77 NC/82K/6 R73 10K/6 LED_G LED_R R74 10K/6 B E 1 R75 4.7K/6 Q10 2 MMST3906 1 3 Q11 R78 4.7K/6 2 MMST3906 3 2 3 1 R86 0 ohm/6 D20 R164 NC/0 ohm/6 NC/DAN202U RST *Co-lay RTD2553V/RTD2525L note: R76 R86 C52 R77 R164 RTD2525L NC NC 1U/16V 82K 0 ohm RTD2553VH 4.7K 0 ohm NC NC NC MENU SEL PWR DOWN UP RIGHT LEFT Junction from A change to B 5DVCC MCU_VCC C53 0.1u/6 C54 0.1u/6 C55 0.1u/6 C56 0.1u/6 C57 0.1u/6 C58 0.1u/6 C59 0.1u/6 CN7 *Co-lay CN6/CN7 note: M1 S1 P1 D1 U1 8 7 6 5 4 R92 R93 C53 C54 R109 R117 CN7 NC NC NC NC NC NC RIG1 LEF1 3 2 1 CN6 1K 1K 0.1u 0.1u 4.7k 4.7k 4 NC/4501-10-8P-R CN6 R87 1K/6 R88 1K/6 R89 1K/6 R90 1K/6 R91 1K/6 R92 1K/6 R93 1K/6 R94 33/6 R95 33/6 M1 S1 P1 D1 U1 10 9 8 7 6 5 RIG1 LEF1 4 3 2 1 2005/09/30 4501-10-10P-R TO BUTTON BOARD 3 Add R159,R160,R161,R164,R165 5DVCC R98 NC/6 MCU_VCC RST R110 R111 R113 R114 R109 R115 R116 R117 R118 R119 R120 R121 R122 R123 R99 R100 R101 4.7K/6 4.7K/6 4.7K/6 4.7K/6 4.7K/6 4.7K/6 4.7K/6 4.7K/6 4.7K/6 4.7K/6 4.7K/6 4.7K/6 4.7K/6 4.7K/6 Ω 40 39 38 37 36 35 34 33 RST 4 VCC 41 VOLUME VBRI Hot_Plug R159 100/6 R160 100/6 Hot_Plug R137 DOWN UP RIGHT DDC2_SCL DDC2_SDA R124 R126 100/6 100/6 100/6 LEFT 2 MENU IICSCL IICSDA R129 R133 MCU_RST 100/6 100/6 R161 NC/6 SEL DDC_SDA DDC_SCL R135 R136 100/6 100/6 M512_XOUT 44 45 46 47 48 1 2 3 9 10 11 12 13 14 8 5 P5.0/PWM0 P5.1/PWM1 P5.2/PWM2 P5.3/PWM3 P5.4/PWM4 P5.5/PWM5 DSCL2/P5.6 DSDA2/P5.7 P3.2/INT0 P3.3/INT1 P3.4/T0 P3.5/T1 P7.6/CLKO2 P7.7 ASDA/P3.1/TXD ASCL/P3.0/RXD VSS NC NC NC NC NC NC NC NC VSYNC NC RTD2120L NC P6.7 P6.6/CLKO1 P6.5 P6.4 P6.3/ADC3 P6.2/ADC2 P6.1/ADC1 P6.0/ADC0 P1.0/T2 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 31 32 30 29 28 43 42 27 26 25 24 23 22 21 20 16 XI 17 18 19 6 7 U5 RTD2120L 3 15 XO Y2 R165 NC/6 2005/09/30 C62 10pF/6 24MHz R140 6.8K/6 C63 10pF/6 1 4.7K/6 4.7K/6 4.7K/6 10K/6 10K/6 10K/6 10K/6 R103 R104 R105 R106 R107 R108 C60 C61 NC/6 NC/6 100/6 100/6 VRMT PANEL_PW12 SCL_HDCP 3 SDA_HDCP 3 RTD_SD3/SDI 3 RTD_SCSB RTD_SCLK MCU_VCC R112 4.7K/6 R125 0 ohm/6 AVS1 R128 (PWR_SEL) KEY3 0 ohm/6 M512_XOUT EEPROM_WP LED_G LED_R PWR R131 10K/6 R132 10K/6 STBY MUTE MCU_VCC R141 4.7K/6 Ω EEPROM_WP IICSCL IICSDA U6 8 7 6 5 VCC WP SCL SDA A0 A1 A2 GND 1 2 3 4 AT24C16N-10SC-2.7 C64 0.1u/6 3 VCC12 R96 6.8K/6 R97 2K/6 (PWR_SEL) KEY3 2 1 PROJECT NAME:W0TB Title MCU Size Document Number W0TB Rev A1A Date: Friday, January 05, 2007 Sheet 3 of 7 A B C D E