1-10-5
Power Supply Block Diagram
E2B25BLP
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F2001) 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.
AC2001
F2001
T1.6A L 250V
LINE
FILTER
L2001
D2104
BRIDGE
RECTIFIER
3
5
Q2101
Q2102
7
8
1
2
3
4
IC2101
ERROR
VOLTAGE DET
IC2201
SHUNT
REGULATOR
T2001
HOT CIRCUIT. BE CAREFUL.
16
15
14
13
12
11
10
9
-FL
EV+32V
SYS+5V
EV+3.3V
CN2001
CN1152
Q1025
Q1015
Q1160
Q1163
Q1159
Q1508
CN1151
CN1015
IC1025
4
-FL
27
30
EV+33V
1
29
VI+1.2V
2
28
VI+1.2V
3
27
EV+12V
4
14-16
P-ON+3.3V
19-21
VI+1.2V
24,25
P-ON+2.5V(1)
9-11
P-ON+5V
4-6
P-ON+10.5V
1
HDD+5V
4
HDD+12V
26
EV+12V
5
25
EV+12V
6
24
EV+12V
7
23
EV+12V
8
22
EV+12V
9
10
REG-VCC
21
9
REG-VCC
22
8
EV+5V
23
7
EV+5V
24
6
EV+5V
25
5
EV+5V
26
3F
1
2
8
2F
2
2
9
1
L
O
W
-PO
W
3
0
21
SAFETY2B
10
HO
T
COLD
REG
Q2209
IC1153
IC2204
SHUNT
REGULATOR
SHUNT
REGULATOR
REG
REG
+5V REG.
+5V REG.
+5V REG.
SW+5V
IC1002
+9V REG.
IC1151
+2.5V REG.
+3.3V REG.
IC1152
+10V REG.
+3.3V REG.
EV+12V
AL+9V
AL+5V(2)
AL+12V
AL+5V(1)
Q2203
Q2221
Q1016
Q1164
Q1154
PWR-SW
TO SYSTEM
CONTROL
BLOCK
DIAGRAM
REG-CONT
P-ON+5V
AUDIO+5V
TO HARD
DISK DRIVE
TO HDD/DVD
MAIN CBA
CN101
P-ON+10V
LOW-POW
F1
F2
AV CBA
POWER SUPPLY CBA
Содержание HD-A2685
Страница 1: ...SERVICE MANUAL HDD DVD RECORDER HD A2685 HD A2885 HD B2785 HD D2885 ...
Страница 29: ...1 11 6 E2B25SCAV4 AV 4 5 Schematic Diagram ...
Страница 30: ...1 11 7 E2B25SCAV5 AV 5 5 Schematic Diagram ...
Страница 32: ...1 11 9 E2B25SCJ JACK Schematic Diagram CONTROL Schematic Diagram ATA Schematic Diagram E2B25SCATA E2B25SCCNT ...
Страница 38: ...1 11 15 AV CBA Top View BE2B20F01042A ...
Страница 64: ...HD A2685 HD A2885 HD B2785 HD D2885 E2B25 26ED 28BD 29ED 2006 11 21 ...