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Main CBA Top View
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.
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.
TO SENSOR CBA
Otherwise it may cause some components in the power supply circuit to fail.
(END-SENSOR)
WF3
WF1
WF6
WF5
TP201
TP202
J271
TP402
TP301
CTL
RF-SW
B-OUT
V-ENV
V-OUT
1-11-8
Because a hot chassis ground is present in the power
WF8
supply circuit, an isolation transformer must be used.
TP401
TP401
Also, in order to have the ability to increase the input
A-OUT
slowly,when troubleshooting this type power supply
circuit, a variable isolation transformer is required.
Sensor CBA Top View
BHF300F01011A
BHF300F01011B
MAIN CBA
Ref No.
Position
ICS
IC001
D-4
IC201
A-3
B-3
IC202
B-4
IC301
IC401
C-3
IC551
D-2
IC601
E-3
D-2
IC602
IC801
A-1
TRANSISTORS
A-4
Q205
B-3
Q206
Q301
A-4
Q401
B-3
B-3
Q402
D-1
Q571
C-1
Q572
Q591
C-1
Q601
E-3
E-3
Q602
C613 GND
E-3
Q604
(+B Adjustment)
Q605
D-3
Q606
D-3
D-2
Q607
D-3
Q608
Q609
C-4
Q610
C-4
VR601
+B ADJ
C-4
Q611
D-3
Q612
D-4
Q613
Q871
C-3
Q872
D-3
D613 Cathode
C-2
Q873
(+B Adjustment)
C-3
Q874
Q875
C-2
CONNECTORS
C-1
CL201
C-3
CL401
C-2
CL402
CL403
C-4
CL501B
D-1
D-3
CL502B
D-1
CN571
CN601
D-4
CN801
B-4
TEST POINTS
B-4
TP201
TP202
C-4
R583
TP301
C-4
(H Adjustment)
B-4
TP302
D-4
TP401
TP402
C-4
VARIABLE RESISTOR
VR601
E-2
TO SENSOR CBA
(START-SENSOR)
BT5500F01015
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