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Main CBA Top View
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.
TP601
+B
FOCUS-VR
(UPPER SIDE)
SCREEN-VR
(LOWER SIDE)
TP300
GND
VR661
+B ADJ
VR561
PCC
VR562
WIDTH
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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.
8-7
Because a hot chassis ground is present in the power
supply circuit, an isolation transformer must be used.
Also, in order to have the ability to increase the input
slowly,when troubleshooting this type power supply
circuit, a variable isolation transformer is required.
MAIN CBA
Ref No.
IC31
IC111
IC151
IC431
IC551
IC601
IC771
IC801
TRANSISTORS
Q111
Q131
Q161
Q321
Q361
Q511
Q512
Q551
Q552
Q561
Q571
Q572
Q601
Q602
Q652
Q672
Q673
Q674
Q681
Q682
Q696
Q801
Q811
CONNECTORS
CN571
CN691
CN801
CN802
WH301A
WH501A
TEST POINTS
TP300
TP601
VARIABLE RESISTORS
VR561
VR562
VR661
BL3700F01012-1
Position
ICS
B-1
E-1
E-2
D-1
A-1
D-3
F-3
E-3
F-1
E-1
E-2
D-1
D-1
A-2
B-2
B-2
C-2
C-2
B-2
B-2
B-4
C-4
D-2
D-2
D-2
D-3
E-3
D-3
D-3
E-3
E-3
A-3
D-4
E-1
E-3
D-1
A-3
A-3
B-4
A-2
A-2
A-2
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