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

ADA Preamps => MP-2 => Topic started by: Feedback on February 13, 2018, 07:43:15 AM

Title: Display offset problem
Post by: Feedback on February 13, 2018, 07:43:15 AM
Hey guys,

Fired up my old MP2 again after it has been in storage for years.
Everything sounds fine - the only problem it seems to have is on the display. When I turn the preamp on it's all good, but after some time playing, characters are offset to the right.

Anyone came across this already?
Title: Re: Display offset problem
Post by: MarshallJMP on February 13, 2018, 10:44:14 AM
Do you mean that the characters are shifted to the right? Both rows?
Title: Re: Display offset problem
Post by: rnolan on February 14, 2018, 06:54:00 PM
I haven't come across that before, I've had my display go all hieroglyphic (ish) when it doesn't get decent power (running off a generator) and I have to power cycle it to fix it.

One thing to check is the ribbon cable that goes from the PCB to the front panel, it can come out of it's socket on the PCB quite easily, although the display is fed by another cable which runs from the PCB, under the ribbon cable to the screen, worth checking that it's connected properly.  Otherwise, it would seem to be either a problem in the screen or a problem with whatever feeds the screen on the PCB  :dunno: .  You can get replacement screens, MJMP had some but they are the same as the screens used in Quadverbs and come in a variety of background/text colours. (https://www.ebay.com/itm/112535130034?ViewItem=&item=112535130034).
There's some chat about screen change in the MP2 section (http://adadepot.com/index.php?topic=1824.0)
Title: Re: Display offset problem
Post by: Feedback on February 18, 2018, 02:23:25 PM
Thanks a lot for your answers guys!

MarshallJMP > Yes, exactly. Both rows indeed.

rnolan > Ok, thanks for the pointers. I'll check the cables and will consider a replacement if the problem is not solved.
Title: Re: Display offset problem
Post by: tomy on February 19, 2018, 01:20:42 AM
Mp2 display..... :facepalm:

I remember mine
http://adadepot.com/index.php?topic=1432.0

Not hard to fix, but just irritating !