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FS [AU] (ALL SOLD) (Sydney) Tektronix TDS-540 - For Repair. Mags

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Zagadka:
G'day Everyone,

Note: This scope is not in a fully functioning state and is more a "project" or "for parts" type deal, but should make a good platform to repair from.

This thing has had a hard life. I acquired it sometime in 2016 I believe. It must have been dropped or crushed. Some panel beating was required to push the back corner out. When I first saw it, I expected the neck on the tube to be broken for sure. [1] 2/4 feet are missing. There is no front cover, manual or probes.

I haven't had the time to continue the repairs on it and figure it's better in someone else's hands.

The unit fails diagnostics [2] but does show waveforms. [3]
It has issues with POST showing the following errors:
Fail ++ Acq/Proc Interface
Fail ++ Acquisition
Fail ++ Attn/Acq Interface

There are some unusual vertical ~7v offsets. The 0.5v test signal sits at ~6-7v. If you line up the trigger line with a rising edge on a trace on the screen, it will trigger. Just any of the voltages you read are not meaningful/accurate.

The front panel is in "OK" shape. [4]

In 2019 I re-capped it. [5] There was a lot of corrosion. Also an issue with one of the large ICs [6]

In 2021 I reworked U508[7] which had been completely detached from the board by corrosion.

[1] PXL_20220206_015556017.jpg
[2] PXL_20220206_001329843.jpg
[3] PXL_20220206_003938086.jpg
[4] PXL_20220206_015521939.jpg
[5] IMG_20190114_145126.jpg
[6] IMG_20190125_161457.jpg
[7] PXL_20210126_053322995.jpg

I figure it's at least $200 worth of parts for someone with a TDS-5XX. I’m looking for $200AUD. The unit must be collected. I don’t want to ship it.


SC and EA Mags - Free the proviso would be that they are collected, and you take all of them. I don’t want to ship these or split them.

EA 1981: may
EA 1986: Complete
EA 1987: Complete
EA 1988: jan, feb, mar, may, jun, jul, aug, sep, oct, dec
EA 1989: Complete
EA 1990: Complete
EA 1991: Complete
EA 1992: Complete
EA 1993: jan, feb, mar, apr, jun, jul, aug, sep, oct, nov, dec
EA 1994: jan, feb, mar, apr, may, jun, jul, aug, sep, nov, dec
EA 1995: Complete
EA 1996: feb, mar, apr, jun
EA 1997: jan, feb, mar
SC 1988: may, jun, jul, aug, sep, oct, nov, dec
SC 1989: feb, mar, apr, may, jun, jul, aug, sep, oct, nov, dec
SC 1990: Complete
SC 1991: feb, apr, may, jun, jul, aug, sep, oct, nov, dec
SC 1992: jan, feb, apr, may, jun, jul, aug, sep, oct, nov, dec
SC 1994: aug, oct, nov, dec
SC 1995: jan, feb, mar, apr, may, jun, jul
SC 1997: jan, feb, jun
SC 2001: jan, feb, mar, apr, may, jun, aug, sep
SC 2002: dec
SC 2005: jun, jul, aug, sep, oct, nov, dec
SC 2006: Complete
SC 2007: jan, feb, mar, apr, may, jul, aug, sep, oct, nov
SC 2008: jan, mar, apr, may, jun, aug, sep, oct, nov, dec
SC 2009: feb, mar, apr, jun, jul, aug, sep, oct, nov, dec
SC 2010: Complete
SC 2011: Complete
SC 2012: feb, apr, jun, dec
SC 2013: feb, mar

Please let me know if you have any questions via DM or reply here.

Cheers,
Tim.

Brumby:
Interested in the mags.

PM sent.

Zagadka:
The mags are now gone. Thanks @Brumby!  :)

Brumby:
Always a pleasure to save some history.

Will curate into my existing collection .... some time down the track  ::)

Zagadka:
The scope is now sold. Thanks, everyone.

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