
Power Supply Circuit Description
-VR605/Q605 detect overvltage. At about +43v Q605 latches and blows
F600.
-Q605 and associated parts are crowbar overvoltage protection. If +12v rises
above +15 or +27.8 rises above 43 then Q605 latches and blows whichever
fues is supplying power
-U615 regulates in put votage to T660 so that the +12v is +12v
-S605 in 11-14v range uses a different set of taps on T660 and the output
voltage from Q607 will be lower to match.
-Q658 is a constant current bias circuit which powers the inverter
transistors Q657 and Q660.
-Q612 and Q610 shut off the regulator if input voltage falls below 10v.
-Q635/Q637 warn of low input voltage.
Summary of Contents for 314
Page 1: ...Toktronix inc P O lox 500 Beaverton Oregon 97077 ...
Page 2: ......
Page 8: ...Fig 1 1 my Toktronix 314 Storb Oscilloscope 314 Service ...
Page 15: ...Specification 314 Service FRONT VlEW SIDE VlEW 1824 13 Fig 1 2 314 dimensions ...
Page 20: ......
Page 112: ...1 314 Service A6 H I G H VOLTAGE UNBLANKING BOARD Figure 7 2 Circuit board locations ...
Page 113: ......
Page 116: ......
Page 124: ...1 31 6 Service SWf TCH BOARD ...
Page 129: ......
Page 142: ......
Page 159: ...TYPE 314 OSCILLOSCOPE ...
Page 160: ...TYPE 314 OSCILLOSCOPE ...
Page 161: ...REV B FEB 1976 TYPE 314 OSCILLOSCOPE ...
Page 162: ...TYPE 314 OSCILLOSCOPE ...