ViewSonic N2752w-1M Service Manual page 77

8.12. ATSC Power
5VDD
R519 C783
R520 3.9K 0.1U
20K C0603
C420
0.1U AP1510
C0603
DV33_DM
+ C433 C435 I122
100U/16V 0.1U
CE025063 C0603
4
AP1084K18
+1.8V Regulator
11 +30V_TUNER
11 12VSS
5VDD
11,15,17,18 DV33
13,14 +5V_TUNER
14 DV33_DM
14 DV18
15,18 AV33
15,16,18 B9105B_3V3
15,18 DV12
11,13,14,15,16,17,18 GND
GLOBAL SIGNAL
ViewSonic Corporation
I118 0805
L227 L150
4 6
VCC Output
5
Output
30uH R121/0805
D153 0.7m/m R521 C784 + C418 L0805
3.65K 1% 0.1U 220U/16V +
SR54 C0603 CE050080
3
OCSET
2 1
EN FB
R522
1.15K 1%
POWER SUPPLY +3V3 FOR MT5111
POWER SUPPLY +3V3 FOR MT5351
L153
R121/0603
L0603
POWER SUPPLY +3V3 FOR MT5351 (ANALOG)
DV18
L154
R121/0805
L0805 + C434 C436
100U/16V
3 0.1U
IN CE025063
C0603
2
OUT
1
ADJ
TO-263
POWER SUPPLY +1V8 FOR MT5111
+30V_TUNER +5V_TUNER
L158
12VSS
5VDD
DV33 10uH
C450 DRWW9*12 0.6mm
+ C451
I123
+5V_TUNER 220U/16V 0.1U
DV33_DM CE050080 C0603
5
V_IN SW
DV18
GND
AV33
B9105B_3V3
4
SHDN FB
DV12
GND Regulator AP1522 SOT23-5/SMD
74
Confidential - Do Not Copy
DV33_DM
12VSS
C417 C419
100U/16V
0.1U
DV33
C426
0.1U
C0603
AV33
+ C431 C432
100U/16V 0.1U
CE025063 C0603
D151
DIODE SMD BAR99/Fairchild
SOT23/SMD +30V_TUNER
2
3
1
C318
+ C317
220U/50V 0.1U
CE050080 C0603
1
R423
C310
0.1U 267K1%
2
C0603 R0603
Rb
R416
3
11.5K1%
R0603
Ra
Vout = 1.25 x ( 1 + Rb / Ra )
POWER SUPPLY +30V FOR SAMSUNG TUNER
N2752w-1M
I119 L151
4 6
VCC Output
30uH
5
Output
R530 R529 C423 0.7m/m
+ 20K 3.9K 0.1U C789
C421 C0603 D154 R531 0.1U
220U/16V SR54 6.34K 1% C0603
3
OCSET
CE050080
2 1
EN FB
AP1510 R532
C790
0.1U 1.2K 1%
C0603
5VDD
B9105B_3V3
+ C427 C429 I120
100U/16V 0.1U
3
IN
CE025063 C0603
+ C785
4 2
OUT
100U/16V
CE025063
1
ADJ
AMC7585-3.3V/TO252
POWER SUPPLY +2V5 FOR MT5351 AND DDR
DV33 I121
R523
3 2
IN OUT
0
+ C437 C439 R231 R0603 + C438
0.1U
100U/16V AZ1117/adj 100 100U/16V
C0603 R0603
CE025063 SOT223 CE025063
R232
0 1.25 x (1+0/100) = 1.25V
R0603
POWER SUPPLY +1V2 FOR MT5351
L235 +5V_TUNER
R121/0805
L0805
C422
C424 +
0.1U 220U/16V
C0603 CE050080
C786
0.1U
C0603
DV12
C440
0.1U
C0603