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Article #560

Re: Digitor 12 volt portable tv for car - mistery

#560
From: James
Date: Wed, 27 Apr 2005 06:30
24 lines
2376 bytes
"AliTonto" <alitonto@hotmail.com> wrote in message 
news:6655e407.0504262000.349e9abe@posting.google.com...
> Thanks for the info as I couln't find who makes these tvs;
> I will follow up for a schematic with DSE but in the meantime I would
> like to know if the voltage at the collector of the HOT for these
> portable 12v tvs in general should be 110-130 as the bigger ones. (I
> have measured 10.84 volts which is coming straight from the FBT.
> Thanks A.T.
>
<SNIP>

Some time back there were a number of different branded small 12v TVs using 
the same chassis. I cant recall how big they were exactly but around 6-8". 
The entire TV ran on 10V, when using the 12VDC supply it first passed 
through a 10V linear regulator, when using on 240VAC just used a 12V 
transformer then through the same reg. The most unreliable part of them was 
the regulator and a switchmode equivlent of the genuine encapsulated part 
used to be available from GB telespares. That said I do recall one time 
having one of these chassis fail to fire up the horizontal and it did turn 
out to be the jungle / sync IC.

Regards
James 
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From: "James" <dotatdot@tpigglet.com.au>
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Subject: Re: Digitor 12 volt portable tv for car - mistery
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