Toshiba SD-3860SC Service Manual page 39

AC 120V
E-3
POWER BLOCK DIAGRAM
VOLTAGE CTL
IC501
TL431AILP
Q508
P.CON SW
SWITCHING
REGULATOR Q503
Q501, Q502
5V REG
T501
Q505
P.CON SW STAND BY L
9V REG.
IC503
P.CON+9V
KIA7809API
AT+D5V
Q513
P.CON SW
P.CON+D5V
P.CON+A5V
+3.3V (AT)
AT+3.3V
-20V
FILAMENT-
FILAMENT+
E-4