Re: 8753 / 8752 test 17 ADC linearity failure
|
One point of investigation may be the analog multiplexers on that A10 board - based on this comment:
There is no proof that this relates directly to the ADC linearity fault though, it was just a suspicion that they might be prone to degrade or fail.
On 30 October 2017 at 10:18, Tam Hanna tamhan@... [hp_agilent_equipment] <hp_agilent_equipment@...> wrote:
?
Hello Tobias,
sorry for being a bit late to the party - as you can see, I am
always overworked.
I have a similar issue with my 8753C. Are you interested in
working on this problem together?
I know that there used to be a company which repaired this
problem...so it must be something we can find and fix.
Tam
With best regards
Tam Hanna
---
NEW: Enjoy electronics? Like seeing oscilloscopes get repaired? Please subscribe to my new YouTube channel ->
?
Hi
interesting. Is it true, everybody just replaces A10?
oh what a pity :-( does the problem mean that the ADC,
which is a ADC76KG, have a problem?
I think with modern electronic components it should
theoretically be possible to construct a replacement for
this ADC, by making a small adapter board DIP to SMD.
Because the ADC76KG is a pretty normal, 16 bit ADC with
parallel outputs, as far as I remember.
Tobias HB9FSX
-------- Original message --------
Date: 10/28/17 05:48 (GMT+01:00)
Subject: [hp_agilent_equipment] 8753 / 8752 test 17 ADC
linearity failure
?
I recently picked up an HP 8752C with
option 006 (6 Ghz!)
It needed new caps in the power supply and
now appears to work great but fails test 17 -
ADC Linearity. Most of the time it seems people
replace the A10 Digital IF board.
Has anyone successfully repaired this
fault? It would great to narrow this problem
down once and for all.
Does anyone have a known good board
(08753-60095) they are willing to sell?
Any other thoughts/suggestions are also
welcomed.
Steve VE7FM
|
