Hi Joe
I have a similar problem so I would be pleased to hear from you with any
useful information. The basic problem with mine is that the power supply is
suspect - it works, but there is excessive heat, much greater than any other
HP instrument that I have, from the rear mounted heat-sink, this is too hot
to hold your hand on ! There is also a very obvious buzz from the power
transformer, even when it is on "stand-by" - so I guess at worst it could be
shorted turns in the power transformer, or probably better, a faulty bridge
rectifier,or one or more of the large reservoir caps - this an early model
(1984), so perhaps it is to be suspected. I also think the performance is
not to specification, but I will check-out the perceived problem with PSU
before I investigate this matter. I am just about to start the
investigation of the prime problem.
Roy
----- Original Message -----
From: "Joseph Gray" <[email protected]>
To: "Discussion of precise time and frequency measurement"
<[email protected]>
Sent: Saturday, October 10, 2009 5:46 AM
Subject: [time-nuts] 5370A
I just got a 5370A locally and am going through the performance
checks. Things are not as they should be. Is there someone who knows
this unit intimately who would be willing to help me off list?
Joe Gray
KA5ZEC
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