9-6
Power Supply Block Diagram
FL10.2BLP
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F601) 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 4 A, 125V fuse.
CAUTION ! :
ATTENTION :
Utiliser un fusible de rechange de m
ê
me type de 4A, 125V.
4A/125V
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
HO
T
COLD
PO
WER SUPPL
Y CB
A
HOT CIRCUIT. BE CAREFUL.
Q602
SWITCHING
CONTR
OL
1
4
3
2
IC601
T601
LINE
FIL
TER
L601
AC
6
0
1
A
C
CORD
BRIDGE
RECTIFIER
D601- D604
FEED
BA
CK
Q601
SWITCHING
Q631
CN201
CN301
CN3701
Q207,Q208
SWITCHING
Q211
SW
-6.8V
SW
Q401
Q209, Q213,
D204
SW+16V
Q635
IC631
+3.3V REG.
Q634
Q638,Q639
Q641,643
SW+5V
Q640
SW+5V
Q642
SW+9V
Q632, Q637,
D666
SW+3.3V
LINE
FIL
TER
L602
4A/125V
F601
4A/125V
P-ON-H1
T
O
SYSTEM
CONTR
OL
BLOCK
DIA
GRAM
P-ON-H2
+5V REG.
PROTECT2
PROTECT1
SWITCHING
AL+33V
P-ON+5V
AL+3.3V
AL+13V
TUNER+5V
P-ON+9V
19,20
21,22
14
P-ON+3V
P-ON+7V
AL+3.3V
P-ON+3.3V
P-ON+5V
LCD MODULE ASSEMBL
Y
DIGIT
AL MAIN CB
A UNIT
LCD-6V
8
P-ON+3.3V
19,20
P-ON+3.3V
6,7
VG
H
4
LCD+13V
2,3
AL+3.3V
21,22
16
10
P-ON+7V
16
P-ON+3V
10
P-ON+5V
14
Q210
Q201, Q202, Q212
SW+24.5V
7
5
9
9
10
11
12
13
14
15
16
3
2
Содержание Emerson LC260EM1
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