Symphonic FUNAI SYLVANIA Emerson SC309C Service Manual page 47

H.V./DC Power Supply Schematic Diagram
CAUTION !
Switching power supply circuit is used in this unit.
If Main Fuse (F1951) 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.
A3
A2
A1
6A/125V
B3 C3
B2 C2
B1
C1
1-9-15
CAUTION
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE FUSE.
ATTENTION : POUR UNE PROTECTION CONTINUE LES RISQES
D'INCELE N'UTILISER QUE DES FUSIBLE DE MEMO TYPE.
RISK OF FIRE-REPLACE FUSE AS MARKED.
"This symbol means fast operating fuse."
"Ce symbole reprèsente un fusible à fusion rapide."
D3
D2
D1
H.V./DC POWER SUPPLY
Ref No. Position Ref No. Position
ICS TRANSISTORS
IC551 A-3 Q1955 D-1
IC1951 A-1 Q1956 E-1
TRANSISTORS TEST POINTS
Q571 C-3 J551 C-2
Q572 C-3 J552 C-2
Q591 B-2 J1015 B-2
Q1930 B-1 J1027 B-2
Q1931 B-1 CONNECTORS
Q1932 B-1 CL501A E-3
Q1933 B-1 CL502A E-2
Q1951 B-1 CL1951A E-1
Q1952 B-1 CN571 B-3
Q1953 D-1 ADJUSTMENT
Q1954 D-1 VR1951 C-1
E3 F3
E2 F2
F1
E1
1-9-16 T4300SCHV