Service manual
Schematic Diagrams
Power 1 (71-P2970-002A) B - 27
B.Schematic Diagrams
Power 1
Sheet 26 of 28
Power 1
+12V
DUAL2.5V
SB5V
+5V
SB3V
SB5V
SB5V
SB5V
SB5V
SB5V SB5V
SB5V
+1.7V+3V
+2.55V
+2.55V
SB5V
+1.275V
Z2610
Z2609
Z2607
Z2611
Z2612
Z2608
Z2616
Z2615
Z2624
Z2620
Z2621
Z2625
Z2627
Z2623
Z2622
Z2626
Z2601
Z2618
Z2603
Z2602
Z2605
Z2619
TZ2606
TZ2607
TZ2608
TZ2602
TZ2603
TZ2604
TZ2605
TZ2601
Z2617
Z2629 Z2628
Z2613 Z2614
C46
4.7u/10V_0805
C50
4.7u/10V_0805
C23
10u/25V_1206
R5
1K
R24 0
L2 1uH
+
C325
220U/6.3V_10*5_R
12
J1
JOPEN_3A
J2
JOPEN_10A
J3
JOPEN_150mA
D13
SR140
AC
D3
SK54
A C
CA297
0.1u
R4
4.87K_1%
R6 15K
C2
0.1u
R9
1M
+
C14
3300u/6.3V_10*25
12
R12 10
C10
0.1u
C4
0.1u_R
R1 0
D2
SR140
AC
R8
20K_1%
+
C37
3300u/6.3V_10*25_R
12
C32
10u/25V_1206
1
2
L1
6.8uH
1 2
C1
0.01u_R
1
2
C38
0.1u
1
2
Q3
AP60N03H
G
DS
C7
100p
1
2
C8
4.7u/10V_0805
1
2
PU1
SC1470
1
2
3
4
5
6
7 8
9
10
11
12
13
14
EN/PSV
VIN
VOUT
VCCA
FBK
PGOOD
GND PGND
DL
VDDP
ILIM
LX
DH
BST
Q27
2N7002
D
G
S
D1
SR340
A C
Q1
AP60N03H
G
DS
C34
0.1u
R25
10K_1%
R19
10K_1%
U1
CM8562
1
5
7
8
6
2
3
4
VIN
REFEN
AGND
PGND
VCCA
VFB
VOUT
VOUT
R620
15_1206
C19
0.1u
C20
0.1u
C16
0.1u
C15
0.1u
C13
10u/6.3V_0805
C35
10u/6.3V_0805
C36
0.1u
+
C18
330U/4V_D
12
D39
SD103AWS_R
AC
R290 10K
R287 10K
CA175
1u
CA174
0.1u
R296
0
R289
4.7K
Q25
2N7002
D
G
S
R283
20K
CA176
1u
R282 1K
R291 1K Q26
2N3904
B
E
C
D18
1N4148
A C
U18
74AHC74
1
2
3
4
13
12
11
10
14
5
6
9
8
7
CLR1
D1
CLK1
PR1
CLR2
D2
CLK2
PR2
VCC
Q1
Q1
Q2
Q2
GND
R288 10K
R278
10K
U3
CM2854
1
2
3 4
5
6
VIN
GND
EN PG
ADJ
VOUT
R49
18K_1%
CA168
0.1u
C49
0.1u
R50
43.2K_1%
C47
0.1u
+
CT40
1u_0805
+
CT39
4.7u/10V_0805
R230
26.7K_1%
J6
JOPEN
21
R232
45.3K_1%
R231
200_1%
CA169
0.1u
Q19 AP1117(SOT223)
3 2
1
VIN VOUT
ADJ
C202
0.01u
U40
74AHC1G08(SC-88A)
2
1
4
3
5
C303
2.2u_0805
R614
15_1206
R594 200K_1%
PWRON#[22]
SUSC#[14,22]
SB3V [14,15,16,19,20,22,23,24]
DUAL2.5V [5,8,10,22]
SB5V [3,12,13,14,22,28]
+12V [12,13,16,17,22,24,25,27,28]
+1.275V [9]
+5V [4,11,12,13,14,16,17,19,21,22,23,24,25,27,28]
+1.7V [5]
PGOOD1[28]
EN [13]
EN[13]
10A
3A
PIN4=Z2615
1A
P_GND4
P_GND1
P_GND1 P_GND1
P_GND1 P_GND1
P_GND1
P_GND4 P_GND4P_GND4
P_GND4P_GND4P_GND4
PIN9 =GND