Archived posting to the Leica Users Group, 1998/03/27

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Subject: Re: [Leica] Help with Pradovit
From: MSwiek <MSwiek@aol.com>
Date: Fri, 27 Mar 1998 08:23:06 EST

Hi, Lucian,

I am a fellow LUGer and so your posting concerning problems with the Pradovit.
I have a couple of Pradovit Color 250 autofocus projectors, and expereinced a
similar problem with one of them.  There are a couple of possibilities:

1) the autofocus sensor which picks up the reflection of a beam f light
projected onto the front surface of the slide has deeteriorated an is no
longer working;

2) the sensor is misaligned;

3) one of the electrical connections to the sensor is broken or has come
loose.

Replacing or realigning the autofocus sensor can be expensive and a bit
tricky.  To complicate matters, Leitz upgraded the autofocus sensor assembly
mid-way through the production cycle of the 250.  A replacement/upgrade kit is
still available from Leica Camera in New Jersey (they may need to order it
from Germany) for about $260.  Then, to properly install and align the damned
thing, you need special glass slide plates to calibrate the autofocus.  I have
the original factory service manual describing the procedure.

This is the long way of saying that I have ignored the malfunctioning
autofocus.  If I remember correctly, there is a switch on the back of the
projector that deactivates the autofocus.  I'll check on that when I get home
today.

I do have a couple of spare remotes for that projector,  and again, I'll
double check to make sure that they have the focusing buttons.  they are like
new, in the box, as they came packaged with the projector, and have a light
pointer attachment.  I would want about $20, may be plus shipping depending
upon where yuo are.

Let me know.


Mike Swiek
Bethesda, MD
USA

e-mail:  MSwiek@aol.com