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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.
NOTE :
The voltage for parts in hot circuit is measured
using hot GND as a common terminal.
TP601
+B
FOCUS-VR
(UPPER SIDE)
SCREEN-VR
(LOWER SIDE)
TP300
GND
TP302
15kHz
VR661
+B ADJ
VR561
PCC
VR562
WIDTH
TP301
AGC
All manuals and user guides at all-guides.com
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.
7-11
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.
MAIN CBA
Ref No.
Position
ICS
B-2
IC33
IC151
E-5
F-5
IC333
IC431
A-1
C-2
IC551
IC601
C-4
D-1
IC771
IC801
E-2
TRANSISTORS
Q21
C-1
C-1
Q33
Q111
F-3
Q131
F-4
Q141
E-5
Q191
F-5
Q321
E-3
Q531
C-2
Q533
C-2
Q547
B-2
B-2
Q551
Q552
B-2
WH301A
B-2
WH501A
Q561
Q571
B-4
C-2
Q572
Q601
B-1
B-4
Q602
Q652
D-4
D-3
Q672
Q673
D-3
D-3
VARIABLE RESISTOR
Q674
Q681
D-3
D-4
Q682
Q683
D-4
Q696
D-4
7-12
Ref No.
Position
TRANSISTORS
C-1
Q751
Q761
C-1
C-1
Q791
Q792
C-1
D-1
Q793
Q794
D-1
E-2
Q825
Q831
E-3
F-3
Q832
Q841
F-2
E-3
Q851
Q951
D-1
Q956
D-1
Q961
C-1
CONNECTORS
A-1
CN301
CN571
B-3
D-5
CN691
CN801
E-2
E-5
CN802
D-4
A-4
TEST POINTS
A-4
TP300
TP301
A-2
TP302
A-4
TP591
A-3
TP592
A-3
TP601
B-5
VR561
B-2
B-2
VR562
VR661
B-2
BL6650F01011-1
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