1-12-5
Power Supply Block Diagram
E8B23BLP
AC1001
F1001
T1.6A L 250V
LINE
FILTER
L1003
D1001 - D1004
BRIDGE
RECTIFIER
2
4
Q1001
Q1003
Q1008
Q1004
7
8
1
2
3
4
IC1001
ERROR
VOLTAGE DET
T0011
MAIN CBA
POWER SUPPLY CBA
HOT CIRCUIT. BE CAREFUL.
20
19
18
17
16
15
14
13
12
11
1
EV+1.2V
2
EV+1.2V
3
EV+3.3V
4
EV+3.3V
5
EV+3.3V
7
D
V
D-P-ON+5V
8
EV+11V
9
EV+11V
6
D
V
D-P-ON+3.3V
17
PWRCON
P-ON+5V
P-ON-H
P-DOWN-H
P-ON+44V
AL-30V
AL+12V
TIMER+5V
P-ON+9V
AL+5V
Q053,Q054
SW+44V
Q1053, Q1054
SW+12V
Q055
SW+9V
Q056
SW+5V
P-ON+18V
AL+12V
F2
F1
DVD P-ON+12V
CL051A
CL051B
CN2020
3
AL+44V
3
5
AL+12V(1)
5
7
AL+5V
7
2
AL+12V
2
9
AL-30V
11
AL+2.8V
13
AL+4V
15
F1
16
9
11
13
15
16
F2
<TO PIN 73 OF IC501>
<TO PIN 32 OF IC501>
IC1003
+3.3V REG.
IC1004
+1.2V REG.
JUNCTION
CBA
CN051A
3
5
7
2
3
5
7
2
9
11
13
15
16
9
11
13
15
16
-FL
EV+3.3V
DVD-P-ON+3.3V
EV+5V
DVD-P-ON+5V
Q1055
CN1051
SW+5V
Q1052
SW+3.3V
Q058
Q057
HO
T
COLD
TO DVD MAIN
CBA UNIT
(CN401)
+5V REG.
NO
TE FOR
WIRE CONNECT
ORS:
1.
PREFIX SYMBOL "CN" MEANS CONNECT
OR.
(CAN DISCONNECT AND RECONNECT
.)
2.
PREFIX SYMBOL "CL" MEANS
WIRE-SOLDER
HOLES OF
THE PCB
.
(WIRE IS SOLDERED DIRECTL
Y
.)
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.
CAUTION !
For continued protection against fire hazard,
replace only with the same type fuse.