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Re: Tascam Problem

Subject: Re: Tascam Problem
From: "Rich Peet" <>
Date: Sat, 14 Jun 2003 20:35:23 -0000
I would measure the voltage of the battery and then if ok, use
jumpers to determine if the amps pulled off the battery are ok.  I
don't have a schematic of the unit but the problem has to be either,
easy to fix, or just a bad cell in the battery pack and you need a
new pack.  I just don't see that much electronics unique on the dc
side of the dc and ac supplies in portable equipment.  Most dats will
power down if there is not enough voltage under load to garrentee a
constant rpm of the head.


--- In  "Kevin J. Colver"
<> wrote:
> Syd,
> My Tascam does the same thing, please let me know how you solve the
> problem.
> Kevin Colver
> -----Original Message-----
> From: Syd Curtis 
> Sent: Saturday, June 14, 2003 12:25 AM
> To: 
> Subject: [Nature Recordists] Tascam Problem
> Anyone out there with experience of this problem with a Tascam DA-
> recorder?
> Mine was first used mid-June 1999, and so is 4 years old.  Doesn't
> much
> use except in the May-August lyrebird breeding season, and not much
> in
> '01 and '02 because of the drought.
> 1. With the original internal nicad battery the Tascam refuses to
> on.
> 2. With the Tascam mains transformer plugged in it appears to work
> normally.
> 3. With an external 7.2V rechargeable battery plugged into the
> that
> takes power from the transformer, it switches on, but after about 5
> seconds,
> switches itself off again.
> The Tascam transformer when plugged in, either powers the recorder
> charges the internal nicad, depending on the position of a two-way
> switch.
> A few days ago it recharged the completely discharged nicad.
> The plug on the transformer is a peculiar Tascam plug, and not
> purchasable
> as far as I have been able to ascertain.  In order to be able to use
> external batteries to back up the internal one for use in the
field, I
> had
> to cut the lead from the transformer and fit plugs so that I can
> either the transformer or an external battery.
> I am mystified as to why the Tascam will work with current from the
> transformer, but not from the battery, going in via the same lead
> plug.
> On Monday a Musiclab electronics expert will look at it.  (I
hope.)  But
> if
> anyone has experienced this problem and can give advice, it might
> him
> time - and me, dollars.
> Syd Curtis in Brisbane, Australia.
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