Amek 9098 dual preamp schematics

[pbl4845]

Hi all!

I was given one of these lovely 9098 dual preamps long ago, but only channel one is working.

I opened it today and looks like someone tried to fix that same channel replacing one of the big electrolytics capacitors( poorly and it was unsoldered), I resoldered with no luck.

But I found what maybe(just maybe) is a missing capacitor labeled as C112 …I tried to short it but didn’t work either.

So question for you guys in order to be able to continue with this:

-anyone has the schematics of the system9098 dual mic preamp??


Kind regards
Pablo

 

[pbl4845]

Update:
….i have found something else after removing the child board:
-1->the previously mentioned unsoldered capacitor
-2->the previously mentioned maybe missing capacitor
-3->new thing I found which looks like also “serviced”

 

[pucho812]

Missing capacitor might be a “DNI”, do not install. Have to look at schematics to be sure if it should be installed or not. Without schematics the best to do is reference the working channel, if one works and one doesn’t makes it is easier to compare the working vs non-working and go from there.