9-18
6. Power Supply Block Diagram
PL10.3BLP
HO
T
COLD
PO
WER SUPPL
Y CB
A
HOT CIRCUIT. BE CAREFUL.
1
4
3
8
2
T601
TO
INVER
TER
BLOCK
DIA
GRAM
(CN1900)
CN602
3
HO
T
-GND
2
HO
T
-15V
3
AC
L
1
LINE
FIL
TER
L601
AC
6
0
1
A
C
CORD
BRIDGE
RECTIFIER
D601- D604
5
4
11
12
13
14
16
17
18
19
9
7
8
FEED
BA
CK
Q601
SWITCHING
Q631,
D653
CN201
CN1001
CN301
CN3701
Q207,Q208
SWITCHING
Q211,D210
SW
-6.8V
SW
Q401
SW+16V
Q635
IC631
+3.3V
REG.
2
3
Q634
Q636
Q638,Q639
Q641,643
SW+5V
Q640
SW+5V
Q642
SW+9V
Q501
SW+16V
Q637,D666
SW+3.3V
LINE
FIL
TER
L602
4A/125V
F601
4A/125V
Q602
SWITCHING
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
4
14
7,8
21,22
13,14
LCD+16V
LCD+6.8V
INV+16V
VG
H
P-ON+3.3V
P-ON+3V
P-ON+7V
AL+3.3V
P-ON+3.3V
P-ON+5V
INVER
TER CB
A
DIGIT
AL MAIN CB
A UNIT
3
LCD-6.8V
13
P-ON+3.3V
19,20
P-ON+3.3V
12
6
VG
H
10
INV+16V
2
LCD+16V
8,9
AL+3.3V
21,22
16
10
P-ON+7V
16
P-ON+3V
10
P-ON+5V
13,14
Q210
SW+24.5V
Q201, Q202,
Q212
Q209, Q213,
D204
Q603,
Q604
SW
HO
T+15V
IC602
ERROR
VOLTAGE DET
SWITCHING
CONTROL
VH
1
ZCD
5
OUT
4
FB
3
IS
6
VCC
IC601
15
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 même type de 4A, 125V.
4A/125V
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
Содержание 32PFL3505D/F7
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