Toshiba rd-xv48dtkb Service Manual page 57

Power Supply Block Diagram
CAUTION !
For continued protection against fire hazard,
replace only with the same type fuse.
HOT CIRCUIT. BE CAREFUL.
F1001 L1003 D1001 - D1004
AC1001
T2.5A H 250V
LINE BRIDGE
RECTIFIER
FILTER
Q1003
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
T1001
3 18
17
5
16
15
Q1001
14
13
7 12
11
8 10
IC1001
ERROR
VOLTAGE DET
4 1
3 2
IC1101
3
SHUNT
1
REG.
Q1103
2
HOT COLD
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.
Q1106
SW+5V
Q1108,Q1110,Q1111 IC1105
+8.5V REG. +5V REG.
Q1100 Q1105
SW+12V +10V REG.
Q1101
IC1102
SHUNT
REG.
Q1104
Q1102
SW+5V
Q1112
BOARD POWER SUPPLY
1-13-9
NOTE: BOARD MEANS PRINTED CIRCUIT BOARD.
CL1001
1 AL-30V
2 AL+44V
3,4 AL+16.3V
7,8 AL+12V
12 P-ON+10V
14,15 P-ON+5V
16,17 AL+5V(3)
26 SYS+5V
25 F1
24 F2
11 1V2CONT
34 LOW-POW
29 POW-SW
13 FAN-CONT1
27 REG-CONT
30,31 AL+2.8V
32 P-ON+3.3V
Q1114 CN1002
1 FAN+12V
2 GND
Q1115
CN1003
1 HDD+12V
3 HDD+5V
CN1001
25-27 P-ON+10.5V
20-22 P-ON+5V
10-12 AL+2.8V
IC1103 6,7 P-ON+1.8V
+1.8V REG. 15-17 P-ON+3.3V
IC1104
+3.3V REG.
Q1109 Q1107
TO SUB
POWER SUPPLY
BLOCK DIAGRAM
(CN1503)
FAN
HARD
DISK
DRIVE
TO
DVD/HDD
MAIN BOARD
(CN101)
E3NG1BLP