Acer AL2423W AL2423W LCD Monitor - Page 49

Chapter 7 SCHEMATIC DIAGRAM Main Board Circuit 5 4 3 Change 5V to 3.3V +12V L9 1 2 D19 C A +18V +3.3_DVDD C205 100u/25V R237 R225 100UH + 560/1206 390K/6 U15 8 DRI SC 1 7 IPK SE 2 RB081L-20 13.3K/1% C206 2200pF/6 R224 C207 0.1uF /6 + C204 330uF/25V PWM0/BOOT5 R172 4.7K B C R170 1K R171 10K D GND 6 VCC 5 FB TC 3 GND 4 AIC1563 1K/1% C195 330pF/5% R223 GND GND GND GND GND +5V R231 R232 4K7/6/NC 0/6 Q5 3904 GND E R173 1K ADD 12V to 18V 10/14/2005 PBIAS R250 4K7/6/NC MMST3906/NC Q16 C163 22uF/10V GND ON/OFF C169 0.1uF GND GND ADJ C164 0.1uF 2 1 CN7 1 2 3 4 5 6 7 8 HEADER-2X4/S D2.0 GND_PWR GND_PWR 12V L1206 FB28 C159 0.1uF GND_PWR FB17 C165 0.1uF GND_PWR L1206 C166 330uF/16V C160 330uF/16V +12V C161 0.1uF C162 0.01uF GND +5V C167 0.1uF GND C168 0.01uF 3 3 1 2 3906 Component top view D 1 2 3904 Component top view +12V Add 5V for avoiding lack current 11/2 +3.3_DVDD +3.3_AVDD +3.3_DVDD 4K7 2K2 4K7 4K7 4K7 4K7 4K7 exchange for ESD 11/2 LEFT/LED_G 3906/NC Q6 330R/NC R176 R175 10K/NC E C R174 10K/NC R177 4K7/NC B GPIO30/LEFT/LED_G Q7 3904/NC GPIO30/LEFT/LED_G U12 GND FB19 L1206 FB20 L1206 R184 R183 R182 R181 R180 R179 R178 +5V C 3 VIN VOUT 2 2 CN8 R185 0R/NC LBADC1 LBADC1 C + C201 C171 0.1uF 100uF/25V GND 1 ADJ/GNVDout 4 AIC1084/TO263 R186 200R 1% + C196 100uF/25V C173 0.1uF R194 330R 1% GND GND 1 13 2 3 TO263 4 5 Component 6 7 top view 8 9 R187 R188 R189 R190 R191 R192 R193 R195 R196 100R 100R 100R 100R 100R 100R 100R 100R 100R GPIO24/MENU GPIO25/SEL GPIO26/POWER GPIO27/DOWN GPIO28/UP GPIO29/RIGHT LEFT/LED_G GPIO24/MENU GPIO25/SEL GPIO26/POWER GPIO27/DOWN GPIO28/UP GPIO29/RIGHT GND 10 4501-10-10P-R R197 R198 R199 GND 100R 100R/NC 0R/NC C174 0.1uF C175 0.1uF C176 0.1uF C177 0.1uF C178 0.1uF C179 0.1uF C180 0.1uF C181 0.1uF C182 0.1uF FB26 L1206 +5V + C202 C192 0.1uF 47uF/25V U14 3 1 VIN VOUT Vout ADJ/GND 2 4 AIC1084/TO263 R219 200R 1% +3.3_SDRAM + C197 47uF/25V C194 0.01uF GND GND R220 330R 1% GND GND B 09/23 ADD GND +1.8_DVDD +1.8V_AVDD D17 D18 1N4001 1N4001 +5V + C199 C184 100uF/25V0.1uF GND GND U13 3 1 VIN VOUT Vout ADJ/GND 2 4 AIC1084/TO263 R203 330R 1% R204 147R 1% FB21 L1206 + C198 100uF/25V C186 0.1uF GND H5 MTH276D126 2 9 3 8 4 1 7 5 6 H6 MTH276D126 2 9 3 8 4 1 7 5 6 GND GND H1 MTH276D126 H2 MTH276D126 H3 MTH276D126 H4 MTH276D126 A 2 9 2 9 2 9 2 9 FB24 L1206 3 8 3 8 3 8 3 8 4 1 7 4 1 7 4 1 7 4 1 7 FB25 L1206 5 6 5 6 5 6 5 6 GND_PWR GND_PWR GND GND GND GND GND_AUD GND_AUD AGND GND GND_PWR 5 4 PPWR 3 GND Q8 R200 3906/NC 4K7/NC GPIO30/KEYPAD GPIO31/KEYPAD Q10 3906 Q9 3906 R201 4K7 GPIO4/LED_BLUE R202 4K7 GPIO3/LED_ORANGE GPIO4/LED_BLUE GPIO3/LED_ORANGE +3.3_DVDD B +18V +12V +5V FB27 L1206/NC FB22 FB23 L1206/NC L1206 C187 R206 1uF 0R/NC R205 4K7 Q11 SI9435 1 2 3 4 R210 4K7 E C R208 2K B Q13 3904 GND PNL_PW R 8 7 6 5 C188 0.1uF R207 4K7/NC GND Q12 SI9435/NC 1 8 2 7 3 6 4 5 + C203 C190 330uF0/.215uVF GNDGND R209 100R/NC R211 1K/NC C GPIO17_PANCUR R233 4K7/BNC Q14 E 3904/NC GND GND A Mofidy for discharge circuit 11/2 2 PROJECT : WDTB Techview Inc. Title 01. Power/Keypad Size Date: Document Number SCHEMATIC1 Tuesday, December 13, 2005 1 WDTB Sheet 1 Rev C2A of 8