Magnavox ZV450MW8 - DVD Recorder And VCR Combo, Service Manual

Page: 35 / 89

1-11-10 E9C80BLP
Power Supply Block Diagram
A V
AC1001
F1001
1A 250V
LINE FILTER
L1001
D1001 - D1004
BRIDGE RECTIFIER
2 4
Q1001
Q1003
Q1008
8 7
3 4
IC010
ERROR VOLTAGE DET
HOT
COLD
T001
Q1055
Q1052
Q1102
Q1103
POWER SUPPLY CBA
MAIN CBA
JUNCTION CBA
F
HOT CIRCUIT. BE CAREFUL.
20 19 18 17 16 14 13 12 11
11
AL+44V
22
AL+12V(1)
33
AL+12V(2)
44
D
VD+5V
55
AL+5V
11
AL-30V
22
AL+2.4V
66
AL+4V
77
F1
88
F2
99
PO
W
-P
CN1607 CN1610
CN1612
CN1608
CN1101
CN1611
1 2
11
AL+44V
22
AL+12V(1)
33
AL+12V(2)
44
D
VD+5V
55
AL+5V
10
10
AL-30V
11
11
AL+2.4V
15
15
AL+4V
16
16
F1
17
17
F2
18
18
PO
W
-P
1
FAN
2
GND
CN1102
TO SYSTEM CONTR
O
L
BLOCK DIA
GRAM
P-ON-L PO
W
-P
F
A
N-CONT
EV+33V AL+18V AL+12V P-ON+9V P-ON+5V AL+5V AL-30V -FL F1 F2 EV+10.5V
PWR-SW
FAN
TIMER+5V
Q1056 Q1101
Q031
P-ON+5V
P-DO
WN-H
P-ON+3.3V EV+2.4V P-ON+5V A
U
DIO+5V
P-ON+11V
+9V REG.
SW+5V SW+5V
SW +11V
REG-CONT2
Q1104
Q1105
Q1057
SW +5V
+3.3V REG
IC2503
+2.5V REG
IC2504
P-ON+2.5V P-ON+1.8V
Q1107, Q1108
FAN CONTROL
REG-CONT1
SWITCHING
Q2205
+1.8V REG
IC5005
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.
"Ce symbole reprèsente un fusible à fusion rapide."
CAUTION ! For continued protection against fire hazard, replace only with the same type fuse. ATTENTION : Pour une protection continue les risqes d'Incele n'utiliser que des fusible de m
ê
me type.
Risk of fire
-replace fuse as marked.
"This symbol means fast operating fuse."
A V
F