EBME Forums Forums Maintenance Service Manuals & Schematics Huntleigh Healthcare BD3000

Need service manual.
Thanks!

Frank has the BD-4000 (could be similar).

Nice mug-shot, by the way.

Thanks Geoff, I know this site, but there is no scheme, only a block-diagramm.
The malfunction in the MDM-amplifier or differential amplifier, it makes a lot of noise and crackling.
Small mounting. Without a scheme is very difficult.
I think some elements have changed their parametters.

P.S. Mug-shot is very nice ))

Could be a "bad connection" - unseated SMD, or whatever. A quick run around with your soldering iron might do the trick.

But are you sure that the problem is not with the transducers (or their cables)?