Quote:
Originally Posted by WhiskeyJ 
The method I'm going to try is;
1) Remove the hard clear conformal coating with electronics cleaner.
2) Soak board in a Baking Soda/Distilled Water solution with gentle scrubbing.
3) Wash board in distilled water.
4) Clean board in Ultrasonic Cleaner with "Fresh" Baking Soda/Distilled Water solution.
5) Clean board in "Fresh" Distilled Water in the Ultrasonic Cleaner, Blow off excess, and let board dry thoroughly. Possibly in a low heat (125 F) oven
I really don't see how this can "damage" an unusable board. If this doesn't work' I think that I write this receiver off as JUNK.
My question for Calimark (or anyone else) is; Can you see anything wrong with attempting this method?
Also to remove the rear (Logic?) board, do you just undo the back panel "module" (rear 1/3 section) of the receiver? I remember seeing a photo of a TX-NR3007 (I think) with this module separated from the rest of the receiver.
Suggestions are welcome. Thanks Jack
Edit: I don't plan to use this procedure on the Display Board because of many mechanical switches and fluorescent display.
Also can anyone tell me or lead me in the direction of how to determine the "Build Date" from the Serial #? An old retired bar managers "Search Skills" seem to be somewhat lacking!

The method I'm going to try is;
1) Remove the hard clear conformal coating with electronics cleaner.
2) Soak board in a Baking Soda/Distilled Water solution with gentle scrubbing.
3) Wash board in distilled water.
4) Clean board in Ultrasonic Cleaner with "Fresh" Baking Soda/Distilled Water solution.
5) Clean board in "Fresh" Distilled Water in the Ultrasonic Cleaner, Blow off excess, and let board dry thoroughly. Possibly in a low heat (125 F) oven
I really don't see how this can "damage" an unusable board. If this doesn't work' I think that I write this receiver off as JUNK.
My question for Calimark (or anyone else) is; Can you see anything wrong with attempting this method?
Also to remove the rear (Logic?) board, do you just undo the back panel "module" (rear 1/3 section) of the receiver? I remember seeing a photo of a TX-NR3007 (I think) with this module separated from the rest of the receiver.
Suggestions are welcome. Thanks Jack
Edit: I don't plan to use this procedure on the Display Board because of many mechanical switches and fluorescent display.
Also can anyone tell me or lead me in the direction of how to determine the "Build Date" from the Serial #? An old retired bar managers "Search Skills" seem to be somewhat lacking!
I cant comment on the cleaning procedure, but I have seen in the past on the MFG line, after solder, boards are washed in some water solution( dont know the composition). After the wash, it runs thru a timed heat cycle oefore being considered done.
For the removal (3008) I take off the entire back panel, and then a couple of screws(rear left side - when rear is facing your) to get to the 'cpu' board. I figured this out after taking apart a few times, so for a first timer, be careful.
Honestly- I'd doubt your display board has any issue- but my sample size is small to be certain.





















