Symphonic CSC313E Service Manual page 43

Main 4/5 Schematic 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.
CAUTION ! : For continued protection against risk of fire,
replace only with same type 4 A, 125V fuse.
4A 125V
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.
1-11-6
MAIN 4/5
Ref No. Position Ref No. Position
ICS TRANSISTORS
W-2 T-2
IC601 Q609
IC602 T-3 Q610 T-2
TRANSISTORS T-1
Q611
Q601 X-2 Q612 S-2
W-2 S-1
Q602 Q613
V-2 CONNECTOR
Q604
Q605 U-2 CN601 X-2
U-3 VARIABLE RESISTOR
Q606
Q607 U-2 VR601 V-2
Q608 T-2
VOLTAGE CHART (Power off mode)
2 3
Ref. No. 1 4
IC601 11.0 10.0 0 16.0
1 2 3
Ref. No.
IC602 3.0 0 1.8
Ref. No. S D G
0 137.0 1.8
Q601
Ref. No. E C B
Q602 0 3.2 0
Q604 6.7 9.9 7.8
Q605 0 7.9 0
Q606 8.9 8.8 8.2
Q607 0 0 0.7
Q608 0 3.0 0
Q609 5.8 8.2 6.5
Q610 0.9 5.6 1.4
Q611 0.1 3.0 0
Q612 5.1 5.1 1.9
Q613 0 3.0 0
T5516SCM4