Service manual

Schematic Diagrams
+2.5V, +1.25V (71-M1900-D02) B - 31
Schematic Diagrams
+2.5V, +1.25V
Sheet 29 of 34
+2.5V, +1.25V
VIN
+5V
1.25V2.5V
VIN
SYS3V SYS3V
+2.5V +1.25VS
SYS3V
VIN1(27,28,30)
DD_ONH(28,30)
PSON(24)
SUSB- (30,31)
AUXOK(9,14,22,30)
INTVCC
3.3VREF
INTVCC
3.3VREF
V2
SUSB-
DD_ONH
V2
INTVCC
ON1.2V
INTVCC
VTT_PG
ON1.8V
V2
SUSB-
AUXOK
PD7
RB751V
AC
PD16
RB751V
AC
PD17
1SS355
A C
+
PC86
220U/4V
+
PC87
220U/4V
PC103
0.1U(0805)
PR21 0
PR14 0
PR16 10K
PR76 43.2K_1%
PC71
30P
PC70
30P
PC73
1000P
PC16
1000P
PC95
0.1U(0805)
PR13
33K
PR80
33K
PR81 R(R)
PR95 0
PC93 10U
PC18
0.1U
PC94
0.1U
PQ15
2N7002
G
DS
PR87
1M
PR24 0PR29 0
PR89
10
PR33
20m(1206)
PR23 12m(2512)
+
PC99
220U/4V
+
PC98
220U/4V
PR77 11K_1%
PR78
20K_1%
PR17
0
PR15
2.7K
PR12
20K_1%
PC68
30P
PC69
30P
PC84
0.1U
PR88
1M
PC72
1000P
PC17
1000P
+
PC22
10U/25V_O
+
PC34
10U/25V_O
PL3
CDRH-1205-100
PL4 4.7UH
PJ7
4mm
1 2
PJ5
6mm
1 2
PR18 0
PR92
100K
PQ14
2N7002
G
DS
PR27
100K
PQ5
2N7002
G
DS
PQ16
2N7002
G
DS
PR19 0
PR20 0(R)
PR82
100K
PQ25
2N7002
G
DS
PQ6
DTA114EUA
CE
B
PR26 10K
PJ6
2mm
1 2
PQ22A
FDS6982S
5
4
3
6
PU3
LTC3707
1
8
9
3
2
4
20
21 24
26
25
27
15
11
16
18
2319
17
14
13
12
5
6
7
10
2228
RUN/SS1
ITH1
SGND
SENSE1-
SENSE1+
VOSENSE1
PGND
INTVCC
VIN
SW1
BOOST1
TG1
RUN/SS2
ITH2
TG2
BOOST2
BG1BG2
SW2
SENSE2+
SENSE2-
VOSENSE2
FREQSET
STBYMD
FCB
3.3Vout
EXTVCCPGOOD
PQ22B
FDS6982S
7
2
1
8
PQ21A
FDS6982S
5
4
3
6
PQ21B
FDS6982S
7
2
1
8
PC82
0.1U
3A5A