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Re: HP-8562A repair


 

Harke,

Do you have Firmware Note, Agilent Technologies 8560 Series, 85620A, and
85629B, Part Number 08560-90163?

It outlines all the 'requirements' for using the TAM with the various
firmware choices for the SA. It is a .PDF file that I got off the Agilent
website some time in the past. I recall it was very difficult to find. I
just went to the Agilent website and could not find it. If you don't have
it, I can send it to you via PM.

I think you will need a 85629B. but I am very new to this area.

Another resource is the Agilent Forum's. I posted a question about my issue
about a year ago and got a very knowledgeable response in a couple of weeks.
Although the 8562A is no longer supported, there are some folks there that
appear to be able to help a lot. I have been reluctant to open this
particular instrument due to concerns about my 'skills' at this level.
However, I'm gaining confidence and getting closer to the required 'courage'
to open it up.

Good luck.

Joe

-----Original Message-----
From: hp_agilent_equipment@...
[mailto:hp_agilent_equipment@...] On Behalf Of Harke Smits
Sent: Sunday, January 06, 2013 5:50 AM
To: hp_agilent_equipment@...
Subject: Re: [hp_agilent_equipment] HP-8562A repair




Dear all,

I also have a HP8562A (sn: 3040A5503, quite low milage btw) to work on. The
sa fires up and runs the startup procedure without any errors. However the
amplitude calibration at the higher end seems to be low by 10-15 dB. I do
not suspect the mixer, right now. The cal signal at 300 MHz is fine. I got
myself a TAM (HP 85629A, rev: 870218A). Page 3-6 of the sa Installation
manual gives a table of compatibilty between the two. Unfortunately my
numbers are not stated. Can someone with a newer manual give me the correct
table, please? In addition: when I start running the Automatic Fault
Isolation routine it aborts at test 3: IF log check fauilure. "Cal
Oscillator tune line error" and some more info. But before digging further
I'd like to know compatibility between TAM and SA. It could be the reason.
Can the TAM be upgraded if necessary?

Thanks a lot so far, I expect more to come.

Kind regards,

Harke

--- On Thu, 1/3/13, Jose V. Gavila eb5agv@...
<mailto:eb5agv%40amsat.org> > wrote:

From: Jose V. Gavila eb5agv@... <mailto:eb5agv%40amsat.org> >
Subject: [hp_agilent_equipment] HP-8562A repair
To: hp_agilent_equipment@...
<mailto:hp_agilent_equipment%40yahoogroups.com>
Date: Thursday, January 3, 2013, 4:04 PM



Hi Joe,

I have started this new thread, but with the previous comments attached:

Perhaps we should start a 'new' thread but mine, on power on, gives ERR
317 and 334. When I hit REALIGN LO & IF, I get ERR 301 and 317.
Haven't started down that path but sounds like you had a similar issue,
perhaps.
Maybe... now I feel the urge to fix my unit :-)!!!

Well, let me look at the notes I took and also to the pictures (big

hint: take lots of pictures of all you do, they are very valuable

later!) and I will get back with the faults I found on my unit.

Best regards and thanks for igniting the fire again :-)

JOSE

-----Original Message-----

Hi Joe,

I have an 8562A project as well that I haven't had time for yet.
Hopefully in 2013.
Interesting !

Mine was bought at eBay UK cheap, as it was non working. When I got it

and fixed the power supply, I was able to barely see (without light in

the room!) that it had more than 43.000 hours on it. It generated

several errors: ERR 304 ROL UNLK, ERR 324 FREQ ACC and ERR 301 YTO UNLK.

I was able to fix all of them (I will detail that on another post) and

it seems to work, but then there is the extremely dimm display. And that

is the condition it is now.

Regards,

JOSE

--

73 EB5AGV - JOSE V. GAVILA - IM99sm La Canyada - Valencia(SPAIN)

AGVradio

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