Hi Chris, if it's not blowing fuses and you're sure you've got all the
capacitors ( low value ones in the primary specifically) then check all the
high value resistors on the primary and continuity from reservoir capacitor
to switching transistor.
The average SMPSU usually doesn't deviate wildly f
Hello Fellow Time Nuts,
Does anyone know where I can get either a circuit diagram or a replacement PSU
for a symmetricon S200 NTP server?
I’ve fixed the original one twice before by replacing all the electrolytic
caps, this time it’s popped something more critical and refuses to come back to
l
Hi
There is a surprisingly high range of currents pulled by various GPS antennas.
In some
cases the wider the voltage range, the higher the current. Some antennas can
pull as much as
150 ma. There are GPSDO’s that trigger over current at 30 ma ….
The “easy” approach is to run the receiver into
All,
Does anyone have a good recommendation for an inexpensive but effective
replacement antenna for a Symmetricom/Microsemi S200 or S250? These units
use a 12V receiver and also have an antenna open/good/short status alarm.
My antenna recently went to showing open alarm and the receiver will no
