10-21
CN501
IC1702
IC1703
D654
D704
BA3AU0F0102 3
J182
J184
J177
J183
J187
GND
GND
P-ON+21V
AMP+13V
GND
C692
J179
Q691
__
Base
J190
GND
J151
C651
ALL+3.3V
RISK OF FIRE -
REPLACE FUSE AS MARKED
CAUTION -
HOT
COLD
UNDER SIDE
__
LIVE
__
NEUTRAL
PROTECT1
P-ON+21V
IC601
__
Vcc
IC604
__
Ref
C619
C606
CN601
R601
C620
C616
C615
Q601
BC602
T601
D651
5
5
6
C
4
5
6
C
D655
D653
Q1601
C1614
C605
D1605
IC602
IC603
R679
D660
IC604
Q657
C650
R678
R676
C656
R618
J168
J163
J189
J162
J170
J186
T1601
J185
J176 GND
PFC
__
GND
DRIVE
P-ON
__
H2
C665
J175
GND
J173
J174
AMP+13V
C662
C663
GP003
J150
ZCDB
IC601
__
FB
J154
J149
VIN
VIN
PFC
__
GND
J164
D656
__
Cathode
PFC
__
GND
J167
IC601
__
FB
BC1603
BC603
D619A
D620A
D621A
HOT
D613
C604
L602
C614
R1624
C1612
C1615
CN1001
D602
D601
D604
D603
C601
D607
C602
R602
JS601
D605
L601
T1602
J121
PFC
__
VIN
VIN
5
4
L601A
L602A
BC1601
BC1602
C1626
J135
PFC
__
J136
PFC
__
JS602
VIN
J132
PFC
__
GND
F602 T 2.5A L/250V
D606
SA601
D609A
COLD
Q1202
__
Gate
GATE
IC1301
Q1302
__
Gate
C1707
C1305
J126
J103
J123
J111
BL-SW
GND
IC1301_GATE
J120
PFC
__
VIN
GND
J156
J157
J119
PRI
__
D1307
__
Cathode
3
2
BC1301
J108
GND
GND
J114
J113
J104
GND
J105
AMP+13V
Outer
__
GND
J193
D1302
R1315
8
7
6
5
10
9
__
CS
L1301
C1621
C1613
Q1602
C1622
C1301
J138
J134
J147
J146
J109
J143
J129
PRI
__
GND
PFC
__
VOUT
PFC
__
VOUT
PFC
__
VOUT
Protect3
GND
GND
GND
J124
J122
BC1302
BC1604
GND
IC1201
__
Q1101
__
Source
BL-ADJ
GND
J131
J137
J128
J106
J107
J118
GND
AMP+13V
BL-SW
J125
J127
J116
BL-SW
J133
GND
J117
AMP+13V
J178
C1101
D1102
C1205
C1105
GND
Protect3
GP001
1
B
A
BC1201
BC1101
R1115
GND
L1101
L1201
BC1202
BC1102
J115
Q1102
__
Gate
J101 GND
J181
Protect3
D1202
R1215
4
3
2
1
TOOL NO.
COLD
HOT
PFC
__
GND
GDA
Q1608
__
Collector
IC1601
__
Vcc
PFC
__
GND
IC1601
__
Vref
IC1601
__
Vcc
Q1704
__
SOURCE
C1602
D650
C652
D1603
C1623
Q1704
C1708
C723
IC1602
IC1603
BC1703
C1706
C725
D1707
C1201
J169
J142
J165
J152
J140
J153
PRI
__
GND
GND
C1709
J159
J171
PFC
__
GND
J166
C1618
R1719
C726
C1001
J161
PFC
__
VOUT
J148 GDA
J158
IC1601
__
Vcc
J160
J110
J102
J130
PFC
__
VOUT
D714A
TOP SIDE
Protect3
LED
__
Vin
C724
D712
D711
D710
J172
J144
Protect3
BL-ADJ
J141
J145
C
J155
GND
D713
J191
J180
Outer
__
GND
Outer
__
GND
GP002
D
T1701
BA3AU0F01023
Power Supply CBA Top View
Because a hot chassis ground is present in the power supply
circuit, an isolation transformer must be used when repairing.
Also, in order to have the ability to increase the input slowly,
when troubleshooting this type of power supply circuit,
a variable isolation transformer is required.
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F602) is blown , check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
For continued protection against risk of fire,
replace only with same type 2.5A, 250V fuse.
CAUTION ! :
ATTENTION :
Utiliser un fusible de rechange de même type de 2.5A, 250V.
2.5A 250V