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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
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O4
N4
O3
N3
O2
N2
N1
O1
7-7
NOTE :
The voltage for parts in hot circuit is measured
using hot GND as a common terminal.
P4
Q4
P3
Q3
P2
Q2
P1
Q1
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.
R4
MAIN 3/4
Ref No.
IC33
IC601
TRANSISTORS
Q21
Q33
Q601
R3
Q602
Q652
Q672
Q673
Q674
Q681
Q682
Q683
Q696
CONNECTOR
CN691
TEST POINTS
R2
TP300
TP301
VARIABLE RESISTOR
VR661
R1
7-8
Position
ICS
P-3
O-1
P-4
P-4
P-2
P-1
O-1
N-2
N-1
N-1
M-2
M-1
M-1
O-2
Q-2
N-4
N-4
O-1
L6650SCM3
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