Adam & Smith 2600 - buggy?

Archived from groups: rec.audio.pro (More info?)

Hi group,

the studio I'm working for has a AEG-M15A 2" synced via the Adam&Smith
System 2600 . Recently, if we want to cue to a specific TC, the
machine locates the cue-point correctly, only to fast-forward to some
2 min later in TC direcly afterwards.
This strange behaviour goes away after some time.
At the moment, we just don't power off the A&S, but this bug is still
very annoying. Any ideas to solve this?

TIA, Sebastian

Archived from groups: rec.audio.pro (More info?)

John <are.you.crazy@sendmenomail.com> wrote in message news:<are.you.crazy-602430.14585527092004@library.airnews.net>...

> have you recently changed tape speed or time code frame rate?
> If you do, you have some parameters to change on the appropriate SY
> module for that machine. (mmmm, programming in Hex code with MSB/LSB)
> this sounds possibly like a tach pulse counting issue. The reason it
> goes away after a while is because it is learning the ballistics of the
> machine and adjusts. Do you know what level software is in the SY unit?
> Once the unit is set up, it is very bulletproof, but requires parameter
> adjustments if you make changes to the tape machine like speed or frame
> rates.

No, we didn't change anything. And, as you said, it's been bulletproof
for years. The only thing the technician changed recently were some
ICs on the track-arming boards. I'll check the software, though.

> it's been years but I used to fly a big 2600 system and still have it in
> boxes with the manuals and cables. Need any spares ?

I'll ask our technician, but these units are built for eternity :-)
Thank you very much, it's good to know there are still experts for
equipment like that out there.
It's sad that many engineers/assistants in my age (24) don't have a
chance to work with good old big tapemachines..

Sebastian