Sylvania 6509DD Service Manual page 53

H.V. /DC POWER SUPPLY CBA Top View < TV Section >
CAUTION !
Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit.
If Main Fuse (F951) is blown, check to see that all components in the power supply
circuit are not defective before you connect the DC plug to the DC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
R583
(Hf0 Adjustment)
FOCUS-VR
(UPPER SIDE)
SCREEN-VR
(LOWER SIDE)
1-10-29
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK
OF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE.
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE
8A 125V
MÊME TYPE DE 8A, 125V.
J109
+B ADJ
H.V. /DC
POWER SUPPLY CBA
Ref No.
ICS
IC551
IC902
IC951
TRANSISTORS
Q571
Q572
Q591
Q930
Q931
Q932
Q933
Q934
Q935
Q951
Q952
Q953
VR951
+B ADJ
Q954
Q955
Q956
CONNECTORS
CN571
WH551
WH552
WH554A
TEST POINTS
J109
J551
J552
VARIABLE RESISTOR
VR951
1-10-30 BTD700F01022-A
Position
B-2
D-3
D-2
B-1
B-1
A-3
D-2
D-2
D-2
D-2
D-3
D-3
D-2
D-3
C-1
C-1
C-2
D-2
C-1
A-3
A-3
C-3
B-3
B-3
B-3
D-3