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RE: RCA view finder

Ralph,

The main difficulty with providing a generic procedure for making viewfinder
HMDs is that the inputs vary so much between models.  Some (eg. most Sony
Handycams) accept a simple power-ground-composite video arrangement and can
be converted easily.  Others require the horizontal and vertical scanning
signals separately.  Converting them requires either access to those signals
from your video chip or building a circuit to extract them (generally a
single chip now but requires some electronic knowledge).  Others still,
especially LCD viewfinders may require digital inputs in whatever mix and
format excited the designers that particular day.

The best place I've found to get pinout information is the sci.
electronics.repair newsgroup.  Some of the regulars have libraries of
camcorder service manuals and are happy to provide the pinouts.

Regards,

Philip

> -----Original Message-----
> From:	ralph myers [SMTP:]
> Sent:	Tuesday, October 02, 2001 4:30 AM
> To:	
> Subject:	RCA view finder
> 
> Hello,
> 
> I just picked up an RCA view finder from an old camcorder, and i was 
> wondering what the best way is to obtain the pin-outs would be.  Also if 
> anyone knows of a site that explains how to make an HMD out of a view 
> finder.  Ive found many that suggest that, but none that give directions
> or 
> suggestions.
> Thank you
> 
> Ralph Myers
> 
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