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Main 3/4 Schematic Diagram
CAUTION !
IF SIGNAL
Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit.
VIDEO SIGNAL
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.
AUDIO SIGNAL
Otherwise it may cause some components in the power supply circuit to fail.
M4
M3
M2
M1
N4
O4
N3
O3
O2
N2
O1
N1
7-7
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK
OF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE.
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE
4A/125V
MÊME TYPE DE 4A, 125V.
Q4
P4
P3
Q3
P2
Q2
P1
Q1
NOTE :
The voltage for parts in hot circuit is measured
using hot GND as a common terminal.
MAIN 3/4
R4
Ref No.
Position
ICS
IC31
P-3
O-1
IC601
TRANSISTORS
Q31
P-4
P-2
Q601
Q602
P-1
Q652
O-1
Q672
N-2
Q673
N-1
Q674
N-1
R3
Q681
M-2
M-1
Q682
Q696
O-2
CONNECTOR
Q-2
CN691
TEST POINT
TP300
N-4
VARIABLE RESISTOR
VR661
O-1
R2
R1
7-8
L2808SCM3
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