Sylvania SRT2232S Service Manual page 34

Main CBA Bottom View
CAUTION !
Fixed voltage 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.
WF11
PIN 27
OF IC333
7-18
4A/125V
WF2 WF15 WF14
PIN 59 PIN 48 C347
OF IC333 OF IC333 Minus lead
WF6
PIN 5
OF IC801
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."
7-19
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.
WF1
Q31
Base
7-20
WF8
Q571
Base
WF9
Q571
Collector
WF10
PIN 3
OF WH501A
WF13
PIN 5
OF CN571
WF12
PIN 4
OF CN571
WF16
PIN 3
OF CN571
WF7
Q572
Collector
BL6250F01011-1