Hitachi H972 - Page 8

 8 
+ 12V
AC inlet
Chopper
Circuit #3
Circuit #2
+85V
+14V
+54V
On/Off
control
Chopper
Degauss
Circuit
Manual
Degauss
Standby power supply
On/Off
control
Chopper
Circuit #1
+B
Control
Control
+ 6.3V
5V
Reg.
MPU
Heater
On/Off
FIG. 6 BLOCK DIAGRAM FOR POWER SUPPLY CIRCUIT
Main power supply