DA-88 Trouble

4 replies [Last post]
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Joined: 11/29/2004

:?: Hello,
I have a used DA-88 I purchased on ebay.
Seems to playback very well.
However when I engage the record channels the meters peak out.
I have 3 other DA-88's I've used since 1997 without any trouble.
But I have never seen this before, is there some kind of internal dip switch
or some factory default that can be reset to clear this internal feedback problem?

Thanks
Bart

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Joined: 02/12/2009

Is the "digital input" button on by chance? What does it sound like when you listen to the DA-88's outputs? (keep the volume LOW!!!)

n/a
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Joined: 11/29/2004

The Digital button is not on. However if you turn the all input on and then off the feedback goes away. But there is no audio input after meters drop.
Turn the unit off and on and the feedback is there again.

It sounds like distorted feedback. Very High pitched squeal, a dull roar.

Question? Is there any way for the unit to revert or set it to factory defaults?

Thanks
Bart

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Joined: 02/12/2009

I think it might need to be serviced, and that your problem is related to clocking/samplerate or a physical problem. But since you asked, there are two default settings methods that I know of, neither of which sounds like it would help.

One method is for the timecode card, which I doubt is related to your problem (#22 here: http://www.silentway.com/definitive-dtrs-guide-chapter-6-timecode-submenu )

The other resets the head hours counter, so you'd better be sure it's worth it, and write down your head hours first. Without it, you have no indicator of your headstack lifespan. After doing this, you'll need to add the old pre-reset value to your head hours every time.

To determine the record and repro head wear time on the DA-88:
With the DA-88 off, hold down the STOP and PLAY buttons and turn the machine on. The machine will display " d. " followed by the total time spent in Record and Play, in hours.

For more details on this, and more counters to write down before resetting, see my list here:
http://www.silentway.com/definitive-dtrs-guide-chapter-4-hidden-functions

Then, you need to open up the DA-88 and find the big flat battery on the motherboard. It is probably soldered on. If you disconnect it for a few minutes, the DA-88 will lose it's memory.

Again, I don't see how this could be causing your problem, and if it were me I'd get the deck serviced by a pro, because I value my headhours counter very highly, and my master recordings even highlier! It's always worth getting a DA-88 aligned and cleaned so your priceless recordings are not at risk!

(But of course I'm a rubbernecker, so report your findings back here for everyone else!)

n/a
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Joined: 11/29/2004

Yes, I believe you are correct to say, it needs a factory tweaking session.
I think that would be best before I mess up any more tapes.

Thanks for your advise.

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