ADA Depot - A Forum To Support Users of ADA Amplification Gear

ADA Preamps => MP-2 => Topic started by: Damn-Danny on April 04, 2018, 01:12:13 PM

Title: MP2 disfunctional
Post by: Damn-Danny on April 04, 2018, 01:12:13 PM

Got a MP2  from France
not functioning, no tubes in lcd defect.
it start up all led are green, if turn it off/on several times leds go of.
plugged guitar  in it , the compressor led lits up when i play no sound at any out put.
what could be the problem, put  2 JJ 12ax7 in to it  and  they warm up, after some time hot.
if it tip on print behind 2 pot meters  it hear little noise on outputs.
 help

Title: Re: MP2 disfunctional
Post by: MarshallJMP on April 05, 2018, 03:58:22 AM

Well from the pic you send me you seem to be missing U606 which is a NE5532 opamp.

Title: Re: MP2 disfunctional
Post by: Damn-Danny on April 05, 2018, 02:54:59 PM

First the MP 1 got modded, the MP2 can wait, first collect the needed IC's.
And hopefully it will work.
Maybe the LCD don't need to replaced.
Hope Marshall JPM can help me out then.
Tomorrow i will send the MP1 to him.

Title: Re: MP2 disfunctional
Post by: Damn-Danny on August 25, 2018, 07:17:16 AM

Hope I'll find all the missing IC's. one day

Title: Re: MP2 disfunctional
Post by: Dante on August 25, 2018, 06:13:15 PM

No worries, Danny! MJMP will get it working again or at least have an assessment for you to consider. You're in good hands :thumb-up:

Title: Re: MP2 disfunctional
Post by: Damn-Danny on August 27, 2018, 03:41:10 PM

Nice to know  :headbanger: