FUNAI DRVR-B778S, Service Manual

Page: 53 / 104

1-12-9 E9G01BLP
Power Supply Block Diagram
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
HOT CIRCUIT. BE CAREFUL.
20 19 18 17 16 15 14 13 12 11
6,7
P-ON+2.5V
15-17
D
V
D-P-ON+3.3V
20-22
D
VD-P-ON+5V
1
F
AN+12V
2
GND
25-27
EV+10.5V
C-POW-SW
P-ON-H
P-DOWN-H
10-12
AL+3V
Q1516,Q1517
SW+44V
Q1511,Q1514
SW+12V
Q1515
SW+9V
Q1518
SW+5V
Q1508,Q1509
SW+16V
Q1542
SW+5V
CN051
CN1504
PWR-SW
REG-CONT
IC1505 +3.3V REG.
IC1504
+2.5V REG.
FAN-CONT1
Q1510
Q1519
Q1501
Q1502
CN1501
CN1503
SW+5V
Q1513
Q1512
SW+5V
HO
T
COLD
J911
FAN
11
AL+44V
12
12
AL+5V
13
13
AL+5V
14
14
AL+5V
15
15
AL+5V
20
20
AL+16V
21
21
AL+16V
24
24
AL-30V
25
25
AL+3V
26
26
AL+3V
31
31
AL+4V
32
32
AL+4V
34
34
F1
33
33
F2
22
AL+12V
33
AL+12V
66
F
AN-AL+12V
77
F
AN-AL+12V
88
F
AN-AL+12V
T
O
SER
V
O
/SYSTEM CONTR
O
L
BLOCK DIA
G
RAM
T
O
SER
V
O
/SYSTEM CONTR
O
L
BLOCK DIA
G
RAM
P-ON+44V P-ON+15V P-ON+9V AL+12V P-ON-DECK+5V AL+5V P-ON+5V TIMER+5V AL+16V/+12V DV
D
-P-ON+3.3V
DVD-P-ON+5V EV+5V -FL DVD-P-ON+12V F1 F2
MAIN CBA
POWER SUPPLY CBA
TO DVD MAIN CBA UNIT (CN101)
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.