28
DVD-1740/558
Power Supply Block Diagram
IC1006
(SHUNT REGULATOR)
AC1001
AC CORD
F1001
LINE
FILTER
L1001
D1001, D1002
D1004, D1005
2
4
7
3
4
IC1001
ERROR
VOLTAGE DET
T1001
11
12
13
15
14
16
17
18
1
2
6
BRIDGE
RECTIFIER
HOT
HOT CIRCUIT. BE CAREFUL.
D1003
RECTIFIER
D1010
D1016
Q1016
Q1005
Q1011
Q1002
CN1001
-FL
F1
P-ON+10V
EV+3.3V
P-ON+5V
1,2
EV+1.2V
3,4,5
EV+3.3V
8,9
EV+9V
7
P-ON+5V
6
P-ON+3.3V
17
PWRCON
D1030
F2
AV CBA
TO CN401
1A 250V
A V
F
REG
3
1
2
SCHOTTKY
BARRIER
D1006
SW+10V
Q1004
SW+5V
SW+3.3V
SWITCHING
SWITCHING
IC1002
+1.2V REG.
Q1015
SWITCHING
Q1006,Q1007
SWITCHING
(
SWITCHING
)
2
4
7
1
6
5
8
EN/UV
BP/M
D
S
S
S
S
Q1001
SCHOTTKY
BARRIER
D1008
MICON+3.3V
Q1022
SW+2.5V
RECTIFIER
RECTIFIER
RECTIFIER
Q1020
SW+3.3V
EV+5V
Q1014
SW+5V
Q1012
SWITCHING
TO
SYSTEM
CONTROL
/SERVO
BLOCK
DIAGRAM
PW-SW
PWRCON
POWER-DETECT
EV+1.2V
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 même type.
Risk of fire-replace fuse as marked.
"This symbol means fast operating fuse."
A V
F
To Next Page
Loading...
Need help?
General
