Mauledriver(at)nc.rr.com
Guest
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 Posted: Wed May 23, 2012 5:44 am Post subject: SL30 problems in Phoenix - now I'm back in NC looking for |
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Points well made.
Getting someone with a working and mounted SL30 to swap mine into would
be ideal. Haven't been able to do that.
I'm comfortable slipping someone elses into mine because of the symptoms
but I know that I would feel compelled to replace anyone's unit I
damaged at full cost. Not something I would want to do but would do it
without hesitation in this situation.
Bill
On 5/21/2012 1:53 PM, Tim Olson wrote:
| Quote: |
Personally, my advice would be to either have a shop bench
test it, or take your SL-30 and put it in a known-good
airplane that uses an SL-30. If your SL-30 was somehow
blown up by a wiring issue or some other component in your
plane, it would really make you feel bad to take a fellow
RV'ers SL-30 and blow theirs up too. But to pull yours
and stick it into someone elses known-good tray, you'd
probably not be risking much.
Tim
On 5/21/2012 11:47 AM, Bob Turner wrote:
>
> Turner"<bobturner(at)alum.rpi.edu>
>
> Bill,
>
> I think there's an easy test for the PMA9000, IF the SL-30 is wired
> as the #1 com. Just turn it off (push on the volume control knob).
> The audio panel is "fail safe" and should provide a direct connection
> between the #1 com and the pilot's headset (pilot only, and left ear
> only if stereo).
>
> I'm on the wrong coast, or I'd offer to swap my SL-30. If you can
> find one that's certainly the easiest test. If you can't find one to
> borrow, you can consider the following:
>
> The "fail safe" test on the audio panel doesn't check the wiring. I'd
> pull both the SL-30 and the audio panel. Get out the schematics and
> figure out what pins carry the audio signals between the units. Use
> an ohmmeter with long probes to reach back to the pins and check
> continuity, both "high" and "low" side of the audio lines.
>
> Does the VOR side of the SL-30 work? If so, just swap the coax on the
> back (not so easy, I know). Connect the VOR antenna to the com
> antenna input, and vice versa. Does the VOR now not work, and does
> the com now receive? If the answer is yes, then the problem is in the
> com coax or the antenna. If no, it's the SL-30 itself (assuming
> you've ruled out the audio panel and audio wiring).
>
> -------- Bob Turner RV-10 QB
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=373493#373493
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