Power Supply Block Diagram - Disney DT1300-C Service Manual

Power Supply Block Diagram

CAUTION !
Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit.
If Main Fuse (F601) 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.
HOT CIRCUIT. BE CAREFUL.
4A/125V
F601 L601
4A/125V
LINE
AC601
FILTER
AC CORD
CN691
DG691
DEGAUSSING
COIL
JS601
PS691
Q601
SWITCHING
6-7
4A/125V
HOT COLD
D605 - D608 T601
BRIDGE
6
RECTIFIER
4
2
Q602
LIMITER 1
4 1
IC601
ERROR
VOLTAGE DET
3 2
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,
REPLACE ONLY WITH SAME TYPE 4 A, 125V FUSE.
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE MÊME TYPE DE 4A, 125V.
NOTE :
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
TP601
+B
7
10
8
Q671
SWITCHING
12
11
VR661
+B
Q662
ADJ
Q676
FEED
SWITCHING
BACK
CONTROL
MAIN CBA
+B
AL+33V
DEF +B
BACK-UP
+5V CTRL2
Q121
(FROM PIN41 OF IC301)
+5V
AL+5V
SWITCHING
Q351
+9V
AL+9V
SWITCHING
AL+12V
Q681
+8V
P-ON+8V
SWITCHING
+8V CTRL
(FROM PIN33 OF IC301)
PROTECT-2(TO PIN8 OF IC101)
Q682
+5V
P-ON+5V
SWITCHING
+5V CTRL
Q683
(FROM PIN39 OF IC301)
+5V
P-ON+5V
SWITCHING
PROTECT-1(TO PIN7 OF IC101)
6-8 L6310BLP