Toshiba D-VR7KC Service Manual page 54

Power Supply Block Diagram
CAUTION !
For continued protection against fire hazard,
replace only with the same type fuse.
HOT CIRCUIT. BE CAREFUL.
F
A V
F1001 L1001 D1001 - D1004
AC1001
1A 250V
LINE BRIDGE
FILTER RECTIFIER
Q1008
HOT
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
T1001
2 20
19
4 18
17
Q1001
16
15
Q1003
14
8 13
12
7 11
IC1010
Q1031
ERROR
VOLTAGE DET
4 1
3 2
COLD
BOARD POWER SUPPLY
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.
Q1055
SW
+9V
Q1052
SW Q1102
CN1607 CN1101 +11V
1 AL+44V 1
Q1103
2 AL+12V(1) 2
3 AL+12V(2) 3
4 AL+12V(2) 4
5 DVD+5V 5
6 DVD+5V 6
7 DVD+5V 7
8 AL+5V 8
17 AL-30V 17
18 AL+2.8V 18
19 AL+2.8V 19 +3.3V REG.
20 AL+2.8V 20 IC2503
25 AL+4V 25
26 AL+4V 26
27 AL+4V 27
28 AL+4V 28
29 F1 29
30 F2 30
Q2206
SWITCHING
1-12-10
NOTE: BOARD MEANS PRINTED CIRCUIT BOARD.
Q1057
SW
+5V Q1104
Q1105
SW+5V
Q1056
Q1101
SW+5V
IC2504
+1.8V REG.
CN2611
17,18 AUDIO+5V
Q2205
SWITCHING
P-DOWN-H
PWR-SW
P-ON-L
REG-CONT1
REG-CONT2
CN2204
20-22 P-ON+5V
10-12 EV+2.8V
15-17 P-ON+3.3V
6,7 P-ON+1.8V
25-27 EV+10.5V
CN1102
1 FAN
BOARD MAIN 2 GND
AL+18V
AL+12V
EV+11V
P-ON+9V
P-ON+5V
AL+5V
TIMER+5V
P-ON+5V
P-ON+5V
P-ON+11V
AL-30V
EV+2.8V
-FL
F1
F2
1 EV+33V TO
BOARD
2 AL+5V
TUNER
(CN5006)
TO SYSTEM
CONTROL
BLOCK DIAGRAM
TO DVD MAIN
BOARD
(CN101)
FAN
E9KG0BLP