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Zenith PRO 895x/900x

      >> Introduction 
      >> Layout and Setup Tips 
      >> Manuals / Downloads 




Introduction

 

 
 

The Zenith PRO 880, 881, 900 and 900x were the replacement projectors for the very popular Zenith PRO 851. They were in production from about 1993 to 1996 or so. The PRO 880 and 881 were video and S-video only units, the PRO 900 and 900x are data grade sets that accepted video, S-video and RGB signals to 50 Khz or about 720p. 800 lumens out of 7" Zenith tubes. Digital convergence, on screen menus, and a well written manual to help set the unit up. Very quiet and compact.

A little known fact is that these sets were not actually made by Zenith. Another smaller company was subcontracted to produce these sets, and Zenith simply put their name on it. Zenith also produced these sets for a couple of companies that put their own name on it, namely Runco and Knoll. Knoll to my understanding did nothing but change the name on the sets, but Runco built an internal line doubler for the PRO 900 and 900x and added some aspect memory control into the EPROM and memory chips. The internal line doubler worked well and scaled all video and S-video signals to 480p. The internal line doubler could not be bypassed via the internal menus, however the RGB inputs did bypass it.

Overall the Zenith PRO 88X and 900 series seem not quite as reliable as the older 851’s. The 851’s were tanks that lasted forever, however they are limited to video use and are more or less clunky looking. The 88X and 900 units look a lot sleeker, and even with three internal fans, the sets are very quiet.

The one unique feature of the Zenith PRO line is that they have a shorted throw distance than any other CRT projector. The throw distance for these sets is typically 1.2 X the width of the screen instead of 1.4 to 1.5 X the width of the screen as found on most other CRT projectors. This is due to the lenses that Zenith used in their sets. The lenses lack corner focusing adjustments: Zenith instead used lens spacers. This limited the amount of adjustments that the user/installer had over the corner focusing, but allowed Zenith to use inexpensive lenses as compared to other video projectors, keeping the price down.

On the plus side, the Zenith tubes used in this set are liquid coupled and are dirt cheap to rebuild/replace and are rated at 800 lumens. These tubes are very reliable and last a long time if the projector is properly set up using the maximum phosphor area possible.

The digital convergence also works well, but it tough to get a handle on without reading the instruction manual. Zenith could have done a better job writing simplified software, but oh well…. The user and installation manuals are well written though, and the set has some consumer features such as an internal clock that ‘pro industrial’ sets don’t typically have.

To see how these projectors rank in relation to other projectors for use in a home theater environment see the Projector Rankings page.

For full specifications on these and other projectors, see the Projector Specifications page.

For an overview and history of Zenith see the CRT Primer.

See the Advanced Procedures page for various DIY instructions on maintaining and improving CRT projectors.

Need a remote for your Zenith 880/881/900 projector?  Check out this page at www.remotes.com.  They tell me they still have LOTS of stock.

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