Acer AL1702 AL1702W Service Guide - Page 43

Schematic Diagram Main Board CN201 1 2 3 4 5 6 7 8 9 CONN CMVCC CMVCC CMVCC BKLT-VBRI BKLT-EN C_PANEL_INDEX Volume# Mute DIM# PANEL_ID# Volume# Mute Panel ID(3.3V PWM) {4} {4} {4} CMVCC FB201 {4} 120 C202 100uF/25V '07-01-10 change to Elite MVCC FB202 NC U201 3 VIN 2 VOUT 1 VSS + C204 0.1uF/16V AP1117E33LA Back light Dimming(3.3V PWM) VCC3 C205 + C203 100uF/25V 0.1uF/16V '07-01-10 change to Elite VCC3 * BKLT-EN High ON(3.3V) BKLT-EN R201 200 1/16W R202 4K7 1/16W C206 0.1uF/16V Q202 PMBS3904 INV_ON# {4} Chapter 7 CN202 1 2 3 4 5 6 CONN 1 2 '06-11-3 Remove R209(470 ohm) KEY 0 KEY 1 POWER_KEY # LED_G LED_R KEY 0 {4} KEY 1 {4} POWER_KEY # {4} '06-12-29-3 Remove R211,R212(470ohm) 2 2 ZD202 C209 ZD203 C201 ZD201 NC NC NC 0.1uF/16V 0.1uF/16V C210 0.1uF/16V 1 1 Near to Connect 43 VCC3 R207 120R 1/16W R208 120R 1/16W '06-12-29-3 Change R207,R208 Value from 470ohm to 120ohm Q204 PMBS3906 R210 10K 1/16W LED_R# {4} LED_R LED_G R213 10K 1/16W LED_G# {4} Q205 PMBS3906 Title Size B Date: POWER Document Number G2498-A-AC-X-1-070307 Wednesday , March 07, 2007 Sheet 2 of Rev 2 6