ViewSonic N2201w-1M Service Manual page 49

MAIN PCB CIRCUIT DIAGRAM
SYS POWER CIRCUIT DIAGRAM
+5VSTB
POWER INPUT
CON1 CON1
CON12_2.0 CON12_2.0
STANDBY
1
STANDBY 10
+5VSTB
2
3 +5V_IN
4 +5V_IN
+5V_GND
5
+5V_GND
6
+12V_IN
7
+12V_IN
8
BL-ON/OFF
9
10 BL-ADJUST
11 +12V_GND
+12V_GND
12
Standby:H---ON
Standby:L---STANDBY
+3.3V FOR MSD119BL
U25 U25
AMS1117-3.3V AMS1117-3.3V
+3.3AVDD
+5V
C341 C341 C360 C360
+ + + +
0.1uF 0.1uF 0.1uF 0.1uF
+2.6V FOR DDR
R275 R275
91R_1% 91R_1% U29 U29
AMS1117-adj AMS1117-adj
+2.6V
+5V-DDR
R266 R266
100R_1% 100R_1% C234 C234
+ + + +
C228 C228 0.1uF 0.1uF
0.1uF 0.1uF
1.26V DC-DC FOR MSD119BL Core
+5V
U49 U49
C365 C365 C363 C363 AAT1346A AAT1346A
+ +
10uF 10uF 0.1uF 0.1uF
8 8
NC
POWER_ON/OFF R45 R45 100 100 7 7
9,10 POWER_ON/OFF
EN
R46 R46 100K 100K
C366 C366
470p 470p
ViewSonic Corporation
+5VSTB
+ + C306 C306 C162 C162
0.1uF 0.1uF 10uF 10uF
+5V
C137 C137 C139 C139 C142 C142 C145 C145 C147 C147
+ + 0.1uF 0.1uF 10uF 10uF 1n 1n 1uF 1uF 100p 100p
CA13 CA13
470uF/16V 470uF/16V R12 R12
10K 10K
L16 L16
HGL-L0852 HGL-L0852 +12V
L3 L3
HGL-L0852 HGL-L0852 C136 C136 C138 C138 C141 C141 C143 C143 C146 C146
PWM_OUT
+ + 0.1uF 0.1uF 10uF 10uF 1n 1n 1uF 1uF 100p 100p
7 PWM_OUT
CA11 CA11
470uF/16V 470uF/16V
+3.3AVDD L55 L55 AVDD_ADC +3.3AVDD L74 L74 AVDD_SIF
FB220/500mA FB220/500mA FB220/300mA FB220/300mA
C177 C177 C200 C200 C201 C201 C254 C254 C190 C190 C215 C215 C220 C220
10uF 10uF 1n 1n 0.1uF 0.1uF 0.1uF 0.1uF 10uF 10uF 1n 1n 0.1uF 0.1uF
+3.3AVDD L62 L62 AVDD_DVI +3.3AVDD L56 L56 AVDD_AU
FB220/500mA FB220/500mA FB220/300mA FB220/300mA
C178 C178 C219 C219 C191 C191 C222 C222 C221 C221
10uF 10uF 0.1uF 0.1uF 10uF 10uF 1n 1n 0.1uF 0.1uF
R169 R169
DDR_POWER
1K 1K
L57 L57
+2.6V_VDD_DDR
FB220/500mA FB220/500mA
C244 C244 C193 C193
0.1uF 0.1uF 10uF 10uF
L58 L58 L59 L59
+2.6V
FB220/500mA FB220/500mA +2.6V_MVDD FB220/500mA FB220/500mA DMQC1
FB220/500mA FB220/500mA
C358 C358 C195 C195 C356 C356 C196 C196
0.1uF 0.1uF 10uF 10uF 0.1uF 0.1uF 10uF 10uF
L15 L15 VDDC
33uH_CDRH6D38 33uH_CDRH6D38
3 3
SW
5 5 R245 R245 330_1% 330_1% R246 R246 0 0
IN
C357 C357 C368 C368 C199 C199 C359 C359 C367 C367 C370 C370 C277 C277
R244 R244 0.1uF 0.1uF 10uF 10uF 1n 1n 1uF 1uF 100p 100p + +
D3 D3 10K_1% 10K_1% 0.1uF 0.1uF 0.1uF 0.1uF
B340A B340A
46
Confidential - Do Not Copy N2201w-1M
+5V
R13 R13
10K 10K
D2 D2 NC/4148 NC/4148
R20 R20 1K 1K BL-ADJUST
R22 R22 4.7K 4.7K 1 Q2 Q2 C38 C38
3904 3904 R23 R23
2.2uF 2.2uF NC NC ON_PBACK
7 ON_PBACK
+3.3AVDD L83 L83 AVDD_OTG +3.3AVDD L75 L75
FB220/300mA FB220/300mA FB220/300mA FB220/300mA
C224 C224 C223 C223 C192 C192 C256 C256 C258 C258
1uF 1uF 0.1uF 0.1uF 10uF 10uF 0.1uF 0.1uF 0.1uF 0.1uF
+3.3AVDD L84 L84 AVDD_MEMPLL +3.3AVDD L86 L86 AVDD_LPLL
FB220/100mA FB220/100mA FB220/100mA FB220/100mA
C226 C226 C225 C225 C232 C232 C255 C255
1uF 1uF 0.1uF 0.1uF 1uF 1uF 0.1uF 0.1uF
+5V
R190 R190 R177 R177
10K 10K 10K 10K
R176 R176
Q13 Q13 -5V FOR AMP
1K 1K Q46 Q46
1 1
G G
SOT SOT +5V-DDR
3
D D
3904 3904 2 23 23
S S
1 Q44 Q44
AO3401 AO3401
3904 3904
L60 L60 VDDM
C197 C197 C183 C183 C184 C184 C187 C187 C185 C185 C207 C207 C186 C186 C208 C208
10uF 10uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF
HOLE
7 1
2
6 3
H1 H1
PAD PAD
VDDC
7 1
2
C278 C278 C369 C369 C371 C371 C372 C372 C373 C373 C374 C374
6 3
0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF H4 H4
PAD PAD
+5V
R42 R42
R15 R15 10K 10K
R14 R14 10K 10K
NC/10K NC/10K
BL-ON/OFF
R16 R16 000 000 R17 R17 Q6 Q6
1K 1K 3904 3904
R21 R21 NC/1K NC/1K Q3 Q3
1
NC/3904 NC/3904
OPTION FOR AVDD_MPLL
VDDP
C257 C257 C269 C269
0.1uF 0.1uF 0.1uF 0.1uF
U26 U26
AMS1117-3.3V AMS1117-3.3V
+3.3AVDD L85 L85 AVDD_MPLL +5V
NC/FB220/100mA NC/FB220/100mA
C230 C230 C231 C231 C386 C386
1uF 1uF 0.1uF 0.1uF 0.1uF 0.1uF
CA76 CA76 100uF/16V 100uF/16V
C45 C45 2.2uF 2.2uF
U50 U50
TPS60400 TPS60400
+5V 5
5
1
1
4
4
2
2
3
3
L87 L87 -5V
100uH 100uH
-5V
C47 C47 C96 C96 CA77 CA77
2.2uF 2.2uF 2.2uF 2.2uF 100uF/16V 100uF/16V
7 1 7 1 7 1 7
2 2 2
6 3 6 3 6 3 6
H2 H2 H3 H3 H10 H10
PAD PAD PAD PAD PAD PAD
7 1
2
6 3
H5 H5 H6 H6 H7 H7 H8 H8 H9 H9 H12 H12 H15 H15
PAD PAD TPAD TPAD TPAD TPAD TPAD TPAD TPAD TPAD TPAD TPAD TPAD TPAD
AVDD_MPLL
C264 C264 C387 C387 C266 C266
10uF 10uF 0.1uF 0.1uF 10uF 10uF
1
2
3
H11 H11
PAD PAD
H14 H14 H13 H13
TPAD TPAD TPAD TPAD