Akai S1000 / S1100 samplers group photo

Yahoo Groups archive

Akai S1000 / S1100 samplers

Index last updated: 2026-04-28 23:15 UTC

Thread

Power / LCD Problem with S1100

Power / LCD Problem with S1100

2014-05-13 by Simon Hughes

Hi,

I have a problem with my s1100 and am not totally sure of what I need to replace. Basically its 50/50 if the thing powers up it was spontaneously rebooting every now and then originally. As I am quite competent at soldering I took out all the power pcb’s and resoldered to see if that would help. I have also replaced the backlight recently. At first it powered up ok but after a few times it seems to be getting power but the LCD is showing nothing not lighting up also sometimes the LCD does a strange thing as if the lcd is slowly filling every part of the screen so I am at a bit of a loss at what to do next. Any advice appreciated cheers

Re: Power / LCD Problem with S1100

2014-05-16 by racciolo@...

Not sure if this would help but I once had an S1100 which was doing the same thing. It worked fine for a few days then whenever I powered up the screen was blank with random bits of the screen slowly becoming illuminated but not to show any characters or numbers but what looked more like a "liquid" stain.

I took it back to the shop and they had a look and after a couple of days they had fixed it. They told me it was something outputting the wrong voltage. They weren't specific (I should have asked I know!) but it was something you could adjust from an internal pcb trim.

I'd say best course of action would be to download the schematics from the "files" section of this group and get in there to with a multimeter to check voltages.

Good luck!

Re: Power / LCD Problem with S1100

2014-05-19 by brian.lewis1@...

Hi,
issues with intermittent powering up and/or spontaneous rebooting are usually to do with electrolytic capacitors (the paste in them drys out) or voltage regulators.

I've had similar issues with other equipment and I just replaced any electrolytic caps and voltage regulators I could see on the board - starting with the PSU. It's hard to test caps in circuit, so it's easier to simply replace them (chances are they will go at some point anyway).

May not be the issue here - but the initial symptoms sound like it

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.