Panasonic Toughbook CF-28 Service Manual page 134

Main 26 BIOS,VD12
1
BIOS
SA[0-18]
2
3
4
5
009:D2;025:E2;026:B2;032:F5
6
7
12V
8
9
VD12ON
028:G3
10
11
A B
SA[0-18]
IC59
MBM29LV004TC
SD[0-7]
SA[17]
40 35 SD[7]
A17 D7
SA[16] 1 34 SD[6]
A16 D6
SA[15] 2
33 SD[5]
A15 D5
SA[14]
3 32 SD[4]
A14 D4
SA[13]
4 28 SD[3]
A13 D3
SA[12]
5 27 SD[2]
A12 D2
SA[11]
6 26 SD[1]
A11 D1
SA[10] 36 25 SD[0]
A10 D0
SA[9]
7
A9
SA[8]
8 22
A8 CE#
SA[7]
14 24 MEMR#
A7 OE#
SA[6]
15 9 MEMW#
A6 WE#
SA[5]
10 VCRST#
16
A5 RESET#
001:D10;010:C3;027:B11;027:I3;028:E2;032:H4;033:D5
SA[4] 17 12
A4 RY/BY#
SA[3]
18
A3
SA[2]
19
A2
SA[1] VC3
20
A1
SA[0]
21 31
A0 VCC
11 30
NC VCC
SA[18]
13
NC 16V
29
NC
C356
37 23
0.1u
NC VSS
38 39
NC VSS
Fujitsu
TSOP40(1.2mH)
VM1
IC16
NJM2370R12
1 Vin 8
CTRL
2 GND NC 7
VD12
R315
3 NC 6
NC
10K
4 Vout 5
Byps
16V
B
JRC B
16V
C355 3225 C358
0.1u
0.01u
C357
10u
C D E
VC3
IC135
5
VCC
3
GND
TC7S32FU
SA[17]
SA[16]
SA[15]
SA[14]
IC135
1 ROMEN#
SA[13]
032:H4
4
2 IROMCS#
SA[12]
009:F5;032:H5
TC7S32FU
SA[11]
SA[10]
SA[9]
009:D8;025:C5;026:H4;032:H3
SA[8]
009:D8;025:C5;026:H4;032:H3
SA[7]
SA[6]
SA[5]
SA[4]
SA[3]
SA[2]
SA[1]
SA[0]
SA[18]
F G
26
SD[0-7]
IC60
NU
SST39VF040-xxx-4C-WH
6 29
SD[7]
A17 D7
10 28
SD[6]
A16 D6
11 27
SD[5]
A15 D5
26
5
SD[4]
A14 D4
4
25
SD[3]
A13 D3
12 23
SD[2]
A12 D2
1 22
SD[1]
A11 D1
31 21
SD[0]
A10 D0
2
A9
3 30
A8 CE#
13
32 MEMR#
A7 OE# 009:D8;025:C5;026:D4;032:H3
14 7 MEMW#
A6 WE# 009:D8;025:C5;026:D4;032:H3
15
VC3
A5
16
A4
17 8
A3 VCC
18
A2
19 16V
A1
20
C522
A0
0.1u
9 24
A18 VSS
SST
TSOP32
H I J