[R-390] Cleaning sub-chassis

[Cecil Acuff]

Hi Richard,

        I spray em down with a solution of Simple Green or 409 and work it 
around with a brush then wash it off with the water hose on fairly low 
pressure.  You can then rinse it off with Distilled Water to deionize 
everything.  Needs to be rinsed real good.  Then lay the thing out in the 
bright sun for a couple hours in a dry spot.  I guess on could also blow it 
out with a blow dryer and get the whole chassis pretty warm to bake out any 
moisture.

Treat any contacts to some deoxit and reassemble.

Works for me...

Cecil...
----- Original Message ----- 
From: "richard may" <rtmay at htn.net>
To: <r-390 at mailman.qth.net>
Sent: Monday, January 10, 2005 3:16 PM
Subject: [R-390] Cleaning sub-chassis


Wonder if anybody can give me some tips on cleaning an R-390A sub-chassis. I 
want to clean a crystal osc module. I think if I remove the oven cover, the 
T-207 cover and remove the crystals, I can give this thing a bath. I 
remember reading somewhere how this is done but can't find the article. The 
inside is pristine but the outside is really dirty.  Any tips? Richard, 
W8FCW

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