AnsweredAssumed Answered

HP 83630B

Question asked by ColinH on Oct 14, 2013
Latest reply on Oct 15, 2013 by jlubecky

Like • Show 0 Likes0
Comment • 2

Am stumped trying to fix HP 83630B, self test complains A12 YTM Tune in LO Band.
It seems to actually operate ok (e.g. I get output),
I see the UNLEVELD message in a small range range of frequencies.
Troubleshooting manual not very helpful so far - just suggests it needs a new A12 board.
Am looking for CLIPS, and suggestions on what to look at?

No one else has this question

Outcomes

2 Replies

tabbott Oct 14, 2013 2:37 PM
Mark Correct
Correct Answer
Hi -

CLIPS are no longer available, they were primarily provided to the military. We don’t have any here at all.

Sorry -
Like • Show 0 Likes0
Actions
jlubecky Oct 15, 2013 4:37 PM
Mark Correct
Correct Answer
Does the unit pass all the self tests ? Does the unit complete an auto track to tune the YTM - YTF ?
The Frequency cross-over point for the low band and then thru the YTM is 2GHz. Maybe do a start and stop of 10MHz to 2GHz and see if your still unleveled.
Then do a start 2GHz and stop 26.5GHz. Still unleveled ?? The A12 will adjust this 2 - 26.5GHz range. Your A12 is the YTM driver that would be the Amp/Multiplier
and Amp/Filter adjustments. I can only speak from my experience but I very rarely come across a defective A12 its 99% adjustments that would cause a failure so
I don't think a CLIP is going to help you here but you can purchase a CLIP from manuals plus p/n 08360-90077 http://www.manualsplus.com/catalog/mp_find.php
The A12 shouldn't have any effect on the low band module. I think some more testing will help you narrow down the failure.
I hope this helps.

Joe L
Test Equipment Plus
Like • Show 0 Likes0
Actions

HP 83630B

Outcomes

Related Content

Recommended Content