
1-9-6
Power Supply Block Diagram
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F1001) 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.
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
"Ce symbole reprèsente un fusible à fusion rapide."
CAUTION !
For continued protection against fire hazard,
replace only with the same type fuse.
ATTENTION : Pour une protection continue les risqes
d'Incele n'utiliser que des fusible de m
ê
me type.
Risk of fire
-replace fuse as marked.
"This symbol means fast operating fuse."
A V
F
E5SF0BLP
IC1002
(SWITCHING CONTROL
)
HOT
COLD
Q1002
Q1001
VDD
7
6
11
12
15
13
10
9
16
14
F1001
2A 250V
LINE
FILTER
L1001
CN1001
A V
F
IC1004
ERROR
VOLTAGE DET
1
2
D1010 - D1013
BRIDGE
RECTIFIER
SWITCHING
CONTROL
5
2
6
1
3
HOT CIRCUIT. BE CAREFUL.
POWER SUPPLY CBA
AUDIO CBA
2
4
Q1106
SW+14.5V
Q1203
Q2604
SW+5V
Q1202
Q2614
SW+5V
Q1120
SW+12.5V
F1
F2
FL
P-ON+12.5V
CEC+3.9V
EV+3.3V
EV+5V
P-ON+5V
FAN
FA
N
CONTR
OL
Q1121,Q1122
3
4
1
2
Q1108
Q1103
Q1104
SW+10.5V
Q1201
Q1301
T
O
SYSTEM
CONTR
OL
BLOCK
DIA
GRAM
PWSW3
CN1004
CN1005
CN2008
CN1004
CN2008
F
A
N-CONT1
F
A
N-LOCK
PWSW2
PWSW1
CEC-CONT
12
11
11
10
4
5
6
1
3
3
1
6
5
4
10
12
PWSW3
PWSW2
PWSW1
F1
F2
FL
EV+5V
P-ON+5V
FA
N
F
AN-LOCK
2
15
16
16
15
2
P-ON+12.5V
F
A
N-CONT1
F
A
N-LOCK
1
2
IC1401
+1.2V REG.
3,4
P-ON+10.5V
2
P-ON+5V(1)
CN1003
5,6
P-ON+3.3V
18-21
P-ON+1.2V
24
P-ON+5V(2)
9-12
P-ON+1.8V
T
O
BD MAIN
CBA
(CN6101)
IC1451
+1.8V REG.
Q2637, Q2638
SW+3.9V
IC1301
+3.3V REG.
Q1109, Q1110
CURRENT
LIMIT
Q1204, Q1205
CURRENT
LIMIT
Q2602
Q2603
Q2601
IC2002
+3.3V REG.
SWITCHING
AC
CORD
W004
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TEL 13942296513 QQ 376315150 892498299