A B C
A B C
SMPS unit
(Unloaded)
Set
6. SMPS
R4143 330K
100N-KC4150
100N-KC4159
1N4007SD4144
1N4007SD4143
1N4007SD4142
R4148
2M2
C4147 100N-K
10N-KC4146
1N4007SD4145
ZJ12B
ZD4162
ZJ12B
ZD4163
OPTION
D4146
1N4007S
R4150
1M
R4149
2M2
47/25(NXA)
C4152
ZD4150
ZJ27B
10/50(NXA)
C4155
UF4004
D4148
D4147
AP01C-V1
C4153
1000PF/1KV-3216
OPEN
C4157
OPEN
C4168
C4163
1U-K
33(1)
R4165
R4155
10K
D4150
1N4148
R4168
OPEN
4700N-KC4161
2
1 3
MBR3060PT
D4149
ZJ7.5B
ZD4160
INK0010AC1
TR4140
ZJ12B
ZD4164
R4153
6R8
ZD4158
ZJ39B
R4154
10
BKT4143
M3
5600/6.3(NXA)C4162
5600/6.3(NXA)C4164
5600/6.3(NXA)C4165
D4140 1N4007S
D4141 1N4007S
OPTION
R4142
1M
OPTION
OPTION
OPTION
C4160 1U-K
C4156 2200PF/400V
OPTION
R4145
1M
C4145 0.047U-K
R4164
1M
1M
R4141
C4149 0.
01UF/250V
0.01UF/250VC4148
10K
R4152
C4171
47PF/1KV-3216
ZD4148
ZJ39B
ZD4149
ZJ39B
ZD4165
ZJ15B
ZD4151
P6KE150A
KTC3198G
TR4142
R4156
4K7
C4167 OPEN
R4167
OPEN
U4143
KIA2431AP
R4147
270K
100N-K
C4154
R4151
11K
ZD4147
ZJ39B
C4151
150/200
C4169
10N-100V(PEF)
2
3
4
13
12
9
5
6
10
EE2525
T4140
1
12
2 3
10
4
89
6
711
U4140
TOP268VG
S V
S
S
X
C
S
S
F
S D
BL817 DIP4L
U4142
JZC-36FD
RLY4140
A
B
C
After primary side rectification
(Caution: High voltage, electric shock)
Primary drain
(Caution: High voltage, electric shock)
After secondary rectifications
Operation waveform for each part
Is [U4140 : TOP268VG] dam-
aged?
Is [D4142 / D4143 / D4144 /
D4145 / IC4140] damaged?
Repair the short circuited area
on the PCB.
Check the damaged parts.
Replace the damaged part.
Replace the damaged part.
Is the fuse [F4140] functioning
properly?
Are there any short circuits
caused by the soldering on the
PCB?
Are any parts damaged?
Replace the [U4140 : TOP268VG
and D4142 / D4143 / D4144 /
D4145].
DC 5V is not output.
NO
NO
NO
YES
YES
YES
YES
YES
YES
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
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