[TechAssist] Re: Zenith PRO880 picture reversal procedure
- From: Jim Myers <jr.myers@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Tue, 01 Feb 2005 13:44:52 -0500
Guess you're right, I had never heard of changing one to a rear projo.
Whadda ya do then, add a mirror, a cabinet and a screen?
********************************
Since 1972 *
Jim Myers *
Telrad Electronics *
Fort Wayne Indiana *
********************************
Leonard Caillouet wrote:
> Of course you can. Just reverse the polarity on the horizontal yokes.
> These had connectors that made it easy, IIRC.
>
> Any CRT based projector can be reversed for rear projection in this manner.
> Same for ceiling mounting vs floor mounting, just reverse the H & V yoke
> polarities. There may be geometry range problems with the latter if not
> designed to do so, but even that can be affected by reversing the
> convergence yokes in most cases.
>
> Leonard Caillouet
> Electronics World
> 1261 NW 76 Blvd
> Gainesville, FL 32606
> 352-332-5608
> FAX 352-332-5668
>
>
>
> ----- Original Message -----
> From: "Jim Myers" <jr.myers@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Monday, January 31, 2005 2:54 PM
> Subject: [TechAssist] Re: Zenith PRO880 picture reversal procedure
>
>
> I don't think you can change it from a rear to a front projo or
> visa-versa but you can change it from a celling to a floor mount and
> visa-versa. Once you get the covers off and locate the yoke connectors
> it should be obvious.
>
>
> ********************************
> Since 1972 *
> Jim Myers *
> Telrad Electronics *
> Fort Wayne Indiana *
> ********************************
>
>
> John at Main TV wrote:
>
>>I have a service call to reverse the picture on this set. The customer
>
> was
>
>>using it as a rear projector and now wants to use it for a front
>
> projector.
>
>>He originally changed it from front to rear but he forgot the procedure
>
> and
>
>>now Zenith will not give him the procedure. (according to him). He
>
> thought
>
>>it required changing a plug. I did a google search for that number and
>
> find
>
>>only sales info. At www.zenithservice.com I entered PRO880 for the owners
>>manual and it said "no such number". The customer said that is the only
>>model number on the unit. Any help appreciated, John.
>>John Mielke
>>Main TV
>>636 main St.
>>Longmont, Co
>>phone 303 776 6955
>>fax 303 776 0792
>>maintv2004@xxxxxxxxxxx
>>
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