Power Supply Block Diagram - Sylvania DVL100D Service Manual

Power Supply Block Diagram

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 tothe AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
HOT CIRCUIT. BE CAREFUL.
D1001, D1002
AC1001
L1001 D1004, D1005
AC CORD F1001
1A 250V
LINE BRIDGE
FILTER RECTIFIER
F
A V
Q1003
SWITCHING
HOT
1-7-7
CAUTION
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
F
REPLACE ONLY WITH THE SAME TYPE FUSE.
A V
ATTENTION : POUR UNE PROTECTION CONTINUE LES RISQES
D'INCELE N'UTILISER QUE DES FUSIBLE DE MÊME TYPE.
RISK OF FIRE
T1001
2
Q1001
SWITCHING 4
CONTROL
7
6
IC1001
ERROR
VOLTAGE DET
4
3
AV CBA
-REPLACE FUSE AS MARKED.
"This symbol means fast operating fuse."
"Ce symbole reprèsente un fusible à fusion rapide."
D1003
11 RECTIFIER
D1006
12 RECTIFIER
D1008
13 RECTIFIER
D1015
D1030
14 RECTIFIER
15
16
D1016
Q1005
17 RECTIFIER
Q1015
18
1
2
IC1006 REG
(SHUNT REGULATOR)
NOTE :
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
IC1002
+1.5V
REG.
Q1002
Q1011
Q1004
Q1016
Q1006
1-7-8
-FL
F1
F2
EV+3.3V
P-ON+9V
EV+5V
P-ON+5V
P-ON+3.3V
CN1001 TO CN401
1,2,3 EV+1.5V
4,5 EV+3.3V
14,15 EV+9V
13 P-ON+5V
17 P-ON+3.3V
19 PWRCON
E5700BLP