Magnavox ZC352MW8, Service Manual

Page: 22 / 59

1-9-5
Power Supply Block Diagram
AC1001 AC CORD
F1001 1A 250V
LINE
FILTER L1001
D1001-D1004
Q1003
Q1002
IC1001
ERROR VOLTAGE DET
SW
BRIDGE RECTIFIER
A V
F
HOT CIRCUIT. BE CAREFUL.
D1063
RECTIFIER
D1057, D1058
RECTIFIER
D1056, D1077
RECTIFIER
D1068
RECTIFIER
D1055
RECTIFIER
EV+5V
PWSW
POW-SW
Q1001
SW
CTL
3 4
1 2
SW
CTL
Q1053
SW+5V
VIDEO+5V +2.5V
REG.
IC1504
1
2
4
+3.3V
REG.
IC1503
1
2
4
CN1051
T
O
D
VD MAIN
CBA UNIT CN101
TO SYSTEM CONTR
OL
BLOCK DIA
GRAM
Q1054
SW+10.5V
EV+3.3V AUDIO+10V P-ON+3.3V P-ON+2.5V P-ON+5V EV+1.2V
Q1063
+3.3V REG.
9-11
P-ON+5V
14-16
P-ON+3.3V
19-21
EV+1.2V
24,25
P-ON+2.5V(1)
4-6
EV+10.5V
Q1065
SW+5V
Q1057
SW+5V
TUNER+5V
Q1060
TUNER+32V
Q1505
Q1056
J1215
REG-CONT
HO
T
COLD
3 4 5 8
T1001
20 19 18 17 15 16 14 13 12 11
7
Q1151
+10V
REG.
6-9
EV+5V
6-9
10-12
+5V-L
10-12
19,20
EV+2.5V
19,20
21-26
EV+1.2V
21-26
1-3
EV+10.5V
1-3
27
TUNER+32V
27
CN1060
CN1070
PO
WER SUPPL
Y CB
A
A
V
CB
A
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.
"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
NOTE: The voltage for parts in hot circuit is measured using hot GND as a common terminal.
E7C50BLP