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From: Don on 4 Jul 2010 07:15
The rotating drum/head assembly was completely covered and protected,
as well as the bottom of the motor underneath the chassis. After the
wash, I went through and fully lubricated all points in the transport
which were previously lubricated. Mitsubishi used a special type of
graphite grease, and I located it online. Of course, I knew the PC
boards could be cleaned in this manner, as I used to work for an
electronics manufacturer. However, an entire VCR was a bit of a
bizarre thought. I had nothing to lose with this approach, as my
initial thought after receiving the VCR was to put it in the trash.

All of the membrane switches, all of the mechanical and electrical
aspects of the machine work fine after 3 months of use. Needless to
say, I am pleasantly surprised everything is still functioning to
spec. We'll see if it has any long term affects in the coming
months.

The top cover wasn't in the best of shape, so I contacted a friend who
does powder coating, primarily for custom cars. He stripped the
cover, and powder coated it, and now it looks better than new. He
only charged me for the powder... $10.
From: William Sommerwerck on 4 Jul 2010 07:37
Thanks for the details.


From: Adam Sampson on 4 Jul 2010 08:35
Don <w9cw(a)yahoo.com> writes:

> I have used this method for cleaning other types of electronics in the
> past, but not a VCR.

There was a discussion on the TekScopes list a few months ago about
Tektronix's procedure for cleaning their oscilloscopes and other test
equipment during refurbishment: use a spray gun with plenty of hot water
and detergent, rinse with clean water, then dry in a warm oven for 24
hours. A dishwasher approximates this pretty well.

The instructions list a few caveats: try to avoid getting power
transformers or paper-cased capacitors wet, and relubricate switches and
other moving parts after drying. List members noted that Tek were
reasonably careful to choose switches and pots that could be washed this
way, and more careful drying may be necessary for equipment made by
other manufacturers...

If you're a member of the list's Yahoo group, there's a good article
with photos here:
http://tech.groups.yahoo.com/group/TekScopes/files/Tek%20Scope%20Cleaning%20by%20C%20Phillips.pdf

--
Adam Sampson <ats(a)offog.org> <http://offog.org/>
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