[TechAssist] Re: Sharp Camcorder VL-E36C - Battery Too Low Error Message

  • From: greentron@xxxxxxx
  • To: techassist@xxxxxxxxxxxxx
  • Date: Wed, 05 May 2004 01:14:13 +0000

First, if that model has one, put in a new lithium backup battery. There was 
one model that would have that symptom when the backup battery voltage got too 
low. Second, use 4.2 volts from your bench supply to operate the unit. If that 
doesnt work, you may have to use 3 volts external power to the loading motor to 
check the mechanism and get the tape out. It may be stuck to the drum.
We never had any luck fixing that problem. Sharp had several fixes, changing 
ceramic chip caps, changing the battery holder, adjusting the cut-off voltage 
to 3.0 volts, etc. Usually we found that with a variety of batteries some would 
run the camcorder for a few minutes and some would run it for an hour and a 
half, even though the low battery warning was flashing almost all the time. We 
finally concluded this was due to tiny differences in the battery voltage. 
Either traces on the circuit board had corroded and were dropping too much of 
the battery voltage or the batteries are not what they used to be. This is 
possible because the battery manufacturers were required to reformulate the 
battery materials and remove some of the things that they were using to keep 
the voltage up.
J Silverman


> I apologize for this duplicate post but the first one never got through
> the server and furthermore I put down the wrong model number - eye sight
> is not as good as it use to be.
>  
> 
> Gentlemen,
> 
>  
> 
> I need your help. This camcorder when powered on (with a newly charged
> battery) shows "batter too low" message on the LCD before shutting down.
> I've tried other batteries and the bench power supply with the same
> results. If I try and eject the tape (which is still inside), I here the
> gears start to turn, I see the bench supply climb to 1.5A then back down
> to zero, then it tries to do this all over again. I'm not sure what's
> going on here and would appreciate any help. The customer tells me the
> camcorder is about 8 - 9 years old and this "battery low" problem
> started about a year ago, he thought it was the battery and replaced it
> and the charger. I can't find anything online with respect to this
> problem.
> 
>  
> 
> Thank-you,
> 
>  
> 
> David Lessard
> 
> Alexandria Electronics
> 
> 50 Harrison Street
> 
> P.O. Box 1366
> 
> Alexandria, Ontario.
> 
> Canada
> 
> K0C-1A0
> 
> mr_fixit@xxxxxxxxxxxx
> 
> 
> 
> 
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