2-4
FOCUS-VR
(UPPER SIDE)
SCREEN-VR
(LOWER SIDE)
GND
TP300
VR661
+B ADJ
+B
TP601
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.
For continued protection against risk of fire,
replace only with same type 4 A, 125V fuse.
CAUTION ! :
ATTENTION :
Utiliser un fusible de rechange de m
ê
me type de 4A, 125V.
4A/125V
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
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 Top View
MAIN CBA
Ref No.
Position
IC31
B-1
IC111
D-1
IC151
E-2
IC551
B-2
IC601
C-4
IC801
E-1
Q31
C-1
Q111
E-2
Q321
C-1
Q571
B-3
Q572
B-2
Q601
B-4
Q602
B-4
Q662
C-3
Q671
C-3
Q675
C-2
Q676
C-2
Q681
D-3
Q682
D-3
Q683
D-3
CN571
A-3
CN691
C-4
CN801
D-1
WH301A
C-2
WH501A
A-2
TP300
A-3
TP601
A-4
VR661
A-1
ICS
VARIABLE RESISTOR
CONNECTORS
TEST POINTS
TRANSISTORS
BL2300F01011-1
