Samsung SENS R55 Service Manual page 171

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
VDC
EC21
C820
68uF
100nF
25V
25V
AL
C
P1.5V
R206 C281
30.1K 4.7nF
1%
25V
EC19 C815
330uF 4700nF
2.5V 6.3V
AL
15mohm
R207
43.2K
1%
B
D_AGND
A
4
3
P5V_AUX
C822
100nF
10V
8 D1
L9
C279
3.7uH
G1 100nF
5
25V
6 1 R205
919AS-3R7M
7
G2
4 R204
3 2
C278
nostuff
1nF
IRF7904
50V
Q523
C280
1nF
R867
100K
D_AGND
1%
R868
0
KBC3_PWRON
D_AGND
35-B2 41-C4 49-A2 50-C4 52-B1 52-B2 53-A2
P3.3V
D_AGND
R864
10K
1%
P1.5V_PWRGD
50-C4 52-B1
3
P1.5V & VCCP (1.05V)
P5V_AUX
VDC
R208 R195
10 0
C282 C252
C823 100nF 4700nF
4.7nF 25V 6.3V
25V
U14 D_AGND
C819
D_AGND ISL6227CAZ-T
4.7nF
12 14
SOFT1 VIN 25V
3.3 6
BOOT1
28
VCC
5
UGATE1
D_AGND
4 17
PHASE1 SOFT2
23 R860 3.3
BOOT2
1.5K 1% 7
ISEN1
24
UGATE2
2 25
LGATE1 PHASE2
3 22
PGND1 ISEN2
R196 1.5K
27 1%
LGATE2
10 26
VSEN1 PGND2
9
VOUT1
8 19
EN1 VSEN2
20
VOUT2
15
PG1
11 21
OCSET1 EN2
1 16
GND PG2_REF
13 18
DDR OCSET2
R861
D_AGND
100K
1%
D_AGND
INSTPAR R863
#2
D_AGND
2
VDC
EC20
C920 C824
68uF
100nF 100nF
25V
25V 25V
AL
D1
8
C817
L8
100nF
G1
5 3.7uH
25V
1 6
7
919AS-3R7M
Q522 C253
G2
IRF7904 10nF
4
2 3
C816
1nF
50V
nostuff
C818
1nF
50V
D_AGND
KBC3_VRON
51-C4 41-B3
P3.3V
R862
1.5K
1%
51-C4
VCCP3_PWRGD
2
1
D
C
VCCP
EC16
R197
C204
330uF
5.11K
1% 100nF
2.5V
AL
10V
15mohm
R198
30.1K
1%
B
A
SAMSUNG
ELECTRONICS
1