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Bohmat 78 S schematics

Verfasst: 19.05.2015, 11:08
von raph36
Hello,

i have a problem with my bohmat 78 s, do you have any schematics for this machine,
i think i have narrowed down the problem to one of the led in the little black boxes on the voice card, can it prevent the frequency dividers from working ?, i need schematics for further testing of board including S165 ic, they seem fine by multimeter basic check but i need to be sure. thanks

thank you a lot

Re: Bohmat 78 S schematics

Verfasst: 19.05.2015, 12:00
von arboehm
Hello,

you can find "Böhmat und Schlagzeug 78 (BA67310)" in

http://www.analogorgel.de/orgel/viewtop ... 67&t=10257

Please notice that you have to register to this forum as well. analogorgel forum is a good source for old Dr Böhm schematics.

Regards, Ansgar

Re: Bohmat 78 S schematics

Verfasst: 19.05.2015, 18:13
von raph36
hello,

i registered but i can't seem to be able to access the link you sent me (is that a link to schematics?),
nor to post on this forum...

mmmh
i will need a bit of help on this one

Re: Bohmat 78 S schematics

Verfasst: 20.05.2015, 22:32
von arboehm
Hello,

the link is pointing to an article in the forum. It contains a pdf documnet (37 MB) as attachment.
I have just double checked it. It is a scan on building instruction BA67310, as always in german.
All schmematics are part of this document.

Regards, Ansgar

Re: Bohmat 78 S schematics

Verfasst: 21.05.2015, 13:55
von arboehm
Please do not forget a brief introduction in analogorgel.de->"User stellen sich vor". This is required.
The administrator of analog organ forum will unlock you afterwards.

Regards, Ansgar