Samsung SENS R55 Service Manual page 172

4
SAMSUNG PROPRIETARY
THIS DOCUMENT CONTAINS CONFIDENTIAL
PROPRIETARY INFORMATION THAT IS
SAMSUNG ELECTRONICS CO'S PROPERTY.
DO NOT DISCLOSE TO OR DUPLICATE FOR OTHERS
EXCEPT AS AUTHORIZED BY SAMSUNG.
D
P0.9V
nostuff nostuff
C371 C372 C369
C
10000nF 10000nF 10000nF
4V 4V 4V
MEM1_VREF
C365
1000nF
6.3V
C_AGND
B
A
4
3
P1.8V_AUX
R255
10
5%
C364
C363 C366 R259
10000nF
nostuff
10nF 10000nF 10
4V
5%
25V 4V
C362 R274
100nF 10K
10V 1%
C_AGND
MAX8550_REF
nostuff
R270 0
R271
200K
1%
R273
51.1K
1%
C382
C381 R272
C384
470pF
220nF 51.1K
3.9nF
50V
1%
50V 25V
R254 INSTPAR
C_AGND C_AGND
3
2
DDR2 Power
P5V_ALWS
R253
10
1608
C360
1000nF
6.3V
C359
R256
4700nF
0
6.3V
U25 C_AGND
MAX8632ETI+
D12
14 26
REFIN AVDD BAT54A
13 22
VTTI VDD
12
VTT
9 17
VTTS VIN
11 20 R242 C361 220nF
PGND2 BST
10 19 3.3 25V
VTTR LX
2 18
OVP_UVP DH
5 21
POK1 DL
6
POK2
25 23
SKIP* PGND1
1 27
TON SHDNA*
24 28
GND SHDNB*
8 7
SS STBY
3
REF
4 29
nostuff
ILIM THERM
15
FB
C352
16
OUT
220pF
50V
R269
0
C_AGND
R276
#2 R275 53-A2
2
VDC
EC23 EC25
68uF 68uF
25V 25V
AL AL
nostuff
C343 C342
4.7nF 100nF
25V
25V
5 6 7 8
D1 D2 D3 D4
Q30
FDS6680A
G
4 L10
S1 S2 S3
1.8uH
1 2 3
5 6 7 8
919AS-1R8N
D1 D2 D3 D4
R258
300K
Q32 1%
HAT2195R
G
nostuff nostuff
4
S1 S2 S3
R257
1 2 3
200K
1%
53-B4 47-B2 41-B3
KBC3_SUSPWRON
0 53-B4 53-B2 27-A1
PWRON*
nostuff
52-B2 0 52-B1 50-C4 48-B3 41-C4 35-B2
KBC3_PWRON
1
D
C
P1.8V_AUX
EC22
330uF
C383
2.5V
100nF
AL
10V
15mohm
B
A
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ELECTRONICS
1