9-11
Power Supply Block Diagram [LC321SSX, 32MF369B/F7]
A91FSBLP
HO
T
COLD
PO
WER SUPPL
Y CB
A
HOT CIRCUIT. BE CAREFUL.
Q602
SWITCHING
CONTR
OL
1
4
3
2
IC601
T601
TO
INVER
TER
BLOCK
DIA
GRAM
(CN1900)
CN602
3
HO
T
-GND
1
AC
L
2
LINE
FIL
TER
L601
AC
6
0
1
A
C
CORD
BRIDGE
RECTIFIER
D601- D604
5
4
11
14
12
17
18
13
16
15
19
9
7
8
FEED
BA
CK
Q601
SWITCHING
Q631
CN301
CN3701
Q209,D204
SW+16V
Q635
IC631
+3.3V
REG.
2
3
Q634
Q638,Q639
Q641,643
SW+5V
Q640
SW+5V
Q642
SW+9V
Q637,D666
SW+3.3V
LINE
FIL
TER
L602
4A/125V
F601
4A/125V
P-ON-H4
T
O
SYSTEM
CONTR
OL
BLOCK
DIA
GRAM
P-ON-H2
+5V REG.
PROTECT2
PROTECT3
PROTECT1
SWITCHING
AL+33V
P-ON+5V
AL+3.3V
AL+13V
TUNER+5V
P-ON+9V
19,20
21,22
14
27-29
P-ON+3V
P-ON+7V
AL+3.3V
P-ON+3.3V
P-ON+5V
DIGIT
AL MAIN CB
A UNIT
P-ON+3.3V
19,20
AL+3.3V
21,22
16
10
P-ON+6.7V
16
P-ON+3V
10
P-ON+5V
14
LCD+12V
27-29
Q207,Q208
SWITCHING
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.
Summary of Contents for 32MF339B/F7
Page 63: ...10 8 A91FSSCM2 Power Supply 2 4 Schematic Diagram LC321SSX 32MF369B F7 ...
Page 64: ...10 9 A91FSSCM3 Power Supply 3 4 Jack Schematic Diagram LC321SSX 32MF369B F7 ...
Page 65: ...10 10 A91FSSCM4 Power Supply 4 4 Schematic Diagram LC321SSX 32MF369B F7 ...
Page 68: ...10 13 A91F3SCF Function Schematic Diagram LC320SLX 32MF339B F7 LC320SSX LC320EMX LC320EMXF ...
Page 69: ...10 14 A91FSSCF Function Schematic Diagram LC321SSX 32MF369B F7 ...
Page 71: ...10 16 A91FSSCIR IR Sensor Junction Schematic Diagram LC321SSX 32MF369B F7 ...