Panasonic Toughbook CF-28 Service Manual page 111

Main 3 VC1.6/1.35,VCT,VC25
1
1.6V
2
VM1
3
B B
16V 16V
3225 3225
4
B
16V
3225
C53 C54
10u 10u
C548
10u
5
6
VGATE
7 0 R37
033:D5
C55
NU
8
9
10
11
A B
L2
2 1
ETQP6F1R3LFA
4.92m
D3
RB081L-20
1 2
Q5
FDS6670A
8 S 1
D
7 S 2
D
6 S 3
D
5 D G 4
Nch-MOSFET
FAIRCHILD SOP8
Q4 Q6
FDS6690A FDS6670A
8 S 1 8 S 1
D D
7 S 2 7 S 2
D D
6 S 3 6 S 3
D D
5 G 4 5 G 4
D D
Nch-MOSFET Nch-MOSFET
FAIRCHILD SOP8 FAIRCHILD SOP8
C58
0.22u
RB420D
VC5
1
C
3
A
2
D2
10 R39
25V
C56
0.1
IC2
LTC1735CGN-1#TR
LINEAR TECH.
TSOP16(1.75mH)
R38
470K C60
330p
3 C57
47p
2SK3019 C61
2 R40
47p
Q3 33K
3
1 C59
2 DTC114YE
0.01u
Q2
B
1
VC1 R44 R43 R45 R51 R498
1.35V 27K 0 39K NU NU
1.57V/1.35v 10K 0 15K 33K 680
1.35/1.1V 10K 0 27K 33K 0
1.1/0.9V
C D
R46 22m
5%
2125 1/4W
R47 22m
5%
2125 1/4W
R50 22m
5%
2125 1/4W
MACO
SPCAP D
R48 22m 2V
3216 6.3V +
+
5%
2125 1/4W
C69
B C68
100u
10u
R49 NU
5%
2125 1/4W
EEFCD0D101R
EEFCD0D101R
R522 NU
5%
2125 1/4W
2125 6.3V
C63 C66 2.5V
0.1u 4.7u
0 R41
1.5V
NU
C62
0 R42
R43
0
C65
47p
R44
10K
0.5%
10V
R45 R51
C64 27K 33K
NU C67
0.5% 0.5%
NU
R498
3 D
0
VR_HI/LO#
2
033:G5
G
1 S
Q7
3LN01S-TL
3
2 1
SUSB#
009:F9;010:D9;021:C7;024:B11;024:F12;027:A2;027:B11;028:D5;032:B3
E F
3
VC1
MACO MACO MACO
D D D
SPCAP SPCAP SPCAP
2V 2V 2V
+ +
C70 C72 C515
100u 100u 100u
EEFCD0D101R EEFCD0D101R
VC25
VC3
IC30
XC62FP2502P
3 OUT Vin 2
C77
0.1u
GND 1
C73 TOREX
0.1u
VC1
VCT
NU R54
VC3
IC131
2125
PQ07VZ1H2ZP
1 Vout 3
Vin
2
C71
ON/OFF R52
1K VCT=1.5V ± 115mV
5 Vref 4
GND SPCAP
1u
0.5% C74
2V
+
100p
D
SHARP SC63
C43
100uF
R53
4.99K
EEFCD0D101R
0.5%
G H I J