Panasonic SA-HT940PC - HT940 Power Block Diagram (SMPS)

22.5. HT940 Power Block Diagram (SMPS)
SWITCHING
CONTROL
VOLUME
CONTROL
PC5701
Q5701
REG
IC5702
IC5703
Q5726
RECTIFIER
RECTIFIER RECTIFIER
RECTIFIER
BACKUP
T5701
T5721
D5711 D5717
+50V +30V (+VCC) -30V (-VCC) +20V
+ SENSE
- SENSE
VCC_CONT
+ SENSE
+
-
VDD
D5716
D5701
IC5701
IC5721
D5705
SYS6V
To FL
Display
F+/F-
RECTIFIER
SWITCHING
CONTROL
PC5721
AC
POWER TRANSFORMER
SUB
TRANSFORMER
94
SA-HT940P / SA-HT940PC