9-11
Power Supply Block Diagram [LC321SSX, 32MF369B/F7]
A91FSBLP
HOT COLD
POWER SUPPLY CBA
HOT CIRCUIT. BE CAREFUL.
Q602
SWITCHING
CONTROL
14
3 2
IC601
T601
TO
INVERTER
BLOCK
DIAGRAM
(CN1900)
CN602
3
HOT-GND1
ACL2
LINE
FILTER
L601
AC601
AC CORD
BRIDGE
RECTIFIER
D601- D604
5
4
11
14
12
17
18
13
16
15
19
9
7
8
FEED
BACK
Q601
SWITCHING
Q631
CN301 CN3701
Q209,D204
SW+16V
Q635
IC631
+3.3V
REG.
23
Q634
Q638,Q639
Q641,643
SW+5V
Q640
SW+5V
Q642
SW+9V
Q637,D666
SW+3.3V
LINE
FILTER
L602
4A/125V
F601
4A/125V
P-ON-H4
TO SYSTEM
CONTROL
BLOCK
DIAGRAM
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
DIGITAL MAIN CBA UNIT
P-ON+3.3V19,20
AL+3.3V21,22
16
10
P-ON+6.7V16
P-ON+3V10
P-ON+5V14
LCD+12V27-29
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 même type de 4A, 125V.
4A/125V
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
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