[time-nuts] HP 3458A schematic/service manual request
Don @ True-Cal
True-Cal at swbell.net
Tue Jun 8 02:46:44 UTC 2010
Jeff,
Here are the current part numbers and price for the major assemblies of the 3458A. The A1 board is the most complex and expensive and requires complete calibration after replacement or service. As you can see, the A1 module cost is >$2000. Better plan! Agilent will repair (fixed rate) which includes bringing everything up to current ECN, fully margin test, and provide certified calibration for ~$2500. The resultant product is a world class DMM and well worth the investment.
Regards...
Don
------------------------
HP 3458A DMM
03458-66501 Rev D A1 DC Circuitry
Orderable $2,111
03458-66502 Rev E A2 AC Circuitry
Orderable $1,223
03458-69503 Rev C A3 A/D Converter & Inguard Logic
Orderable replacement 03458-66513 $1,009 - $201
03458-66504 Rev B A4 Inguard Power Supply
Orderable $205
03458-66505 Rev A A5 Outguard Controller
ROMs 03458-88870 thru 5 Rev 7 REV? 7,1
SRAM DS1230Y-150 (2 ea.)
DS1220Y-150
Refurbished $595 **upgrade to opt-001 03458-69515 $659
03458-66506 Rev A A6 Outguard Power Supply
Refurbished $595 if available
Replacement 03458-66516 $666
03458-66509 Rev A A9 DC Reference
Orderable $416 **upgrade to opt-002 03458-80003 $667
----- Original Message -----
From: Robert Benward
To: Discussion of precise time and frequency measurement
Sent: Monday, June 07, 2010 8:27 PM
Subject: Re: [time-nuts] HP 3458A schematic/service manual request
Jeff,
Based on the completed prices on Ebay, you may want to consider getting it repaired by Agilent. The cheapest on Ebay
was $2000, and it went up from there. I can also give you a few cal labs that do repairs as well.
Bob
----- Original Message -----
From: "Robert Benward" <rbenward at verizon.net>
To: "Discussion of precise time and frequency measurement" <time-nuts at febo.com>
Sent: Monday, June 07, 2010 8:54 PM
Subject: Re: [time-nuts] HP 3458A schematic/service manual request
> Hi Jeff,
> I checked the Agilent website, and I assume you did also. There is no schematic to be had. What I have discovered
> with Agilent, is that certain instruments are made by particular divisions. Some of those divisions consider those
> schematics to be proprietary and they will not release them now, not in the near future, and may never be released. I
> ran across this with an LCR meter I bought on EBAY. I tried to get schematics, as I thought he repair would be
> relatively simple. It passed self test, appeared functional, but very erratic. I thought the problem would be within
> the first few components near the front end.
>
> I called the factory more than once, but the line I got was exactly what I described above. I looked everywhere, but
> to no avail. I hope you have better luck than I did. Maybe you can find a parts unit on EBAY cheap.
>
> Bob
>
>
>
> ----- Original Message -----
> From: <jeffhook at comcast.net>
> To: <time-nuts at febo.com>
> Sent: Monday, June 07, 2010 7:26 PM
> Subject: [time-nuts] HP 3458A schematic/service manual request
>
>
>>
>>
>>
>>
>> Hi,
>>
>>
>>
>> I picked up a non-working 3458A at a swapmeet this weekend.
>>
>> It has err "202 Hardware Failure : Slave test-convergance".
>>
>>
>>
>> "Assembly-Level Repair Manual" says its a problem on the A1 board
>>
>>
>>
>> Does anyone have a schematic/service manual for this?
>>
>>
>>
>> Thanks
>>
>> Jeff
>>
>> _______________________________________________
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>
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