Service manual
FO-4400U
FO-CS1
( 9-6B)
( 1-2H)
( 2-1F)
( 3-1E)
( 9-1A)
( 1-2H)
( 2-2F)
( 2-2F)
( 2-3F)
( 2-3F)
( 2-3F)
( 2-2F)
( 9-5D)
( 3-2F)
( 9-5B)
( 9-6B)
( 9-6B)
( 9-6B)
( 9-5B)
<VBT>
( 2-2F)
( 2-2F)
1A1
2
1A2
4
1A3
6
1A4
8
2A1
11
2A2
13
2A3
15
2A4
17
1G
1
2G
19
1Y1
18
1Y2
16
1Y3
14
1Y4
12
2Y1
9
2Y2
7
2Y3
5
2Y4
3
VCC
20
GND
10
B
1
2
IN
1
GND
2
OUT
3
A1
A2
K
B
Vref1
26
ENABLE1
24
PHASE1
25
I11
23
I01
22
RC1
27
SENSE1
2
E1
3
OUT1A
7
OUT1B
6
Vref2
17
ENABLE2
19
PHASE2
18
I02
21
I12
20
RC2
16
SENSE2
13
E2
12
OUT2A
9
OUT2B
8
VBB
1
VBB
14
D(Di)GND
4
D(Di)GND
11
VCC
28
GND
15
NC
5
NC
10
+24VSUB
1
MG
2
MG
3
MG
4
+24V MAIN
5
+24V MAIN
6
+5V MAIN
7
DG
8
DG
9
DG
10
+5V MAIN
11
+5V MAIN
12
+
3
1
2
B
Vo
3
Vadj
4
Vc
2
Vin
1
CE16
33u/16V
+
Q106
KRC106S
C54
T.B.D.
IC9
74HCT244(TSSOP)
C123
N.M.
CE29
47u/35V
+
CE23
47u/16V
+
C163
0.1u
Q100
2SD1664Q
D7
N.M.(DAP202U)
C394
0.1u
R574
1K
C128 330p
D4
SR104
D3
SR104
R176
22.0K-F
R133
1K
IC8A
NJM2904M
+
-
R108 470
IC8B
NJM2904M
+
-
C122
0.1u/50V
C58 T.B.D.
R622
N.M.
R583
N.M.
C124
0.1u
D101
1SS355
C57
T.B.D.
R623
N.M.
C388
0.1u
JP2
DG
F100
ICP-S1.0
C162
0.1u
R177
12.0K-F
IC38 UPC2933
C406
CE6
100u/50V (SMT)
+
D103
HRW0202B
R575
510
C126
330p
C53
T.B.D.
R621
N.M.
CE27
33u/16V
+
R180
11.0K-F
C393
0.1u
R619 0
C52
T.B.D.
R149 0
R60
0
C127
R34
10(1/4W)
Q1
2SD1164
C51
T.B.D.
TP222
R620
0
R132 56.0K-F
C387
0.1u
C55
T.B.D.
IC3
DIP
LB1845
D1
SR104
C56
T.B.D.
CE28
33u/16V
+
CNPW1
B12B-PH-KS
CNPW
C129 470p
D9
SR104
C404
0.1u
R104 0
C405
N.M.
R131
1M
D104
1SS355
C125 470p
R129
R128 470
BAT1
CR2450
F101
ICP-S1.8
R135 56.0K-F
CE20
47u/16V
D8
DAN202U
Q102
N.M.(2SC2411KR)
R516 5.6K
D2
SR104
Q107
KRC106S
R130
N.M.
R134
1K
R518 0
R179
33.0K-F
IC37
PQ070XZ5MZ
R1 0.47(1W)
R2 0.47(1W)
C403
0.1u
R520 0
C407
0.1u/50V
DG
DG
DG
+24V
+5V
DG
DG
MG
+24VA
+5V
MG
MG
+5V
DG
+24V
MG
DG
DG
MG
MG
+24V
+24V
DGDG DG
DG
DG
MG
DG
DG
+5V
DG
DG
+3.3V
+5V
DG
VBAT
DG DG
+5V
+3.3V
DG
+5V
FG1
FG2
DG
FG3
FG4
DG
+1.9VD
MG DG
+3.3V
MG
MG
CISLEDON
CRNT0
TMA
/TMA
TMB
/TMB
CRNT1
BKLON
TXPA
TXA1
TXA0
TXPB
TXB1
TXB0
STPON
VSTP
/STPON
/CISLEDON
/BKLON
ENA
ENB
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
6 6
5 5
4 4
3 3
2 2
1 1
Driver & Power supply block 6/12
6 – 9