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Messages - Donald

#1
Electronic Organs / Re: Ahlborn H5 voice issue
August 04, 2018, 11:01:12 AM
As a follow-up, and having heard back from Ahlborn agent in the UK, confirmed - once the acid seeps through the vias or feed-through-plated holes, then the glass fibre has become impregnated, and with it being a multi-layer board (2 trace layers sandwiched inside as well as component and solder sides) EVEN IF a repair worked, it would not be reliable.
The batteries in question have about a 6-7 year life span and OUGHT to have been a dealer recall with design modification to remove the battery from the board and relocate at some distance.
Very sad, and doubtless fairly expensive for a small rural Church at the time, this size of instrument would have been ideal for donation to retirement/care homes, but unless design engineers take into consideration a single life-limiting component, the entire brand name will suffer.
I gather it stopped working about 10 years ago (made in 1999 I think) so not good value.
Otherwise with battery intervention, it would still be good as new and could doubtless last may years.
Replacement boards are not available, so it is terminal.
Ahlborn agent did offer to examine board free of charge to see if it was repairable but mine is considerably damaged all the way through.

Thank-you for a most interesting forum chaps.
Regards,
D.
#2
Electronic Organs / Re: Ahlborn H5 voice issue
August 03, 2018, 07:58:41 AM
Hello,
New member here but thought I should respond to this old thread.
In South West Scotland at a local Church about to be closed there is an Ahlborn H5-B (991047 - date code?) with considerable battery acid trouble on the digital processor board, everything else seems ok. The damage has even gone through the feed-through holes and corroded the underside of the board.
From this, I doubt even the most patient of repairs would be reliable as the fibreglass board itself is surely impregnated, however there may be IC and components worth salvaging.
Unless there's a supply of new digital boards, I can't see this one escaping the dump. :(
It is truly appalling design to stick a dirty battery in the middle of a high density microprocessor when with all the room inside the organ it could so easily have been mounted off-board.
Is there anyone desperate and in need of an "organ donor"?
Or have others succeeded in repairing acid damage?
Give me real pipes any day!!
Best wishes,
Donald.