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NEC PG Series

      >> Introduction
      >> Layout and Setup Tips
      >> Mechanical Setup Procedure 
      >> PG Models and Production Run Dates
      >> PC Control Cable Pinout & Software
      >> Manuals / Downloads




Mechanical Setup Procedure

 (Page 1)

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This section describes how to perform the basic initial mechanical set-up on the NEC PG series projectors. It applies to the NEC CRT projector series PG6000/9000 to 6200/9200 unless otherwise noted in this procedure.

This document is a work in progress and can be freely updated as needed.
Written by Tinman, edited and revised by Feathers.
Photos by Andreas F. Bobak.

The reason for performing a complete “from scratch” setup on a PG projector is pretty basic. Most of these units now available in the surplus market have at one time or another been tinkered with, adjusted, moved, and even modified to suit a particular application. During this time the unit's basic alignment is often lost. A poorly aligned projector causes excessive stress on the electronics noticeable convergence drift, excess heat, and at some point, failure.

So, you just acquired your first PG. Now what? Well, the obvious thing is to download or purchase a set-up manual. A manual is always good to have, but it is not written to be an easy guide for the new projector owner. It is written for the more advanced user that already understands the use of all the various adjustments and controls, and it glances over the basic setup. It falls short of explaining “why” certain adjustments should be done. This document is an attempt to explain these points in more detail so that anyone with a little daring can perform these adjustments.

So, you DID get the service remote, right? The service remote is crucial to align the PG. If you do not have one, stop reading and acquire a remote before continuing. You CANNOT do anything with this projector without it. A less desirable but usable alternative is the use of a PRONTO remote with the NEC files found on www.remotecentral.com.

Before opening the cover of the projector, from now on referred to as PG, several conditions must be met.
A)  You should already have an installed screen. (obvious)
B)  You have a PG (duh) :)
C)  You have either the set-up remote or a pronto with the right file.
D)  An input source, preferably DVD with a line doubler for simplicity. Plain video is not recommended, since most PG's lack the optional Video decoder card. A Home theater PC is not recommended for this procedure, as it is an advanced setup and introduces too many variables into the process. However, if you are already familiar with this technology and know your setup, go ahead and use it.
E)  Tools... A flat and philips head screwdriver are needed, as well as a razor blade and a soft cloth or air duster.
F)  Coffee. lots of Coffee.
G)  An understanding of the controls of the projector and their functions. The diagrams for the astigmatism procedure and CRT magnetics layout and function should be on hand.
H)  A small ruler for measuring on the CRT face (a wooden ruler works well).
I)   Tape and black thread to mark locations on your screen.

THE DISCLAIMER

This is an advanced and complex procedure for anyone. You should NOT attempt this if you are unsure and have NO basic electronics knowledge. This projector CAN KILL YOU! If you still want to proceed, please study as much documentation on this unit as possible before you start this procedure. You should be familiar with all the parts you will need to adjust and where they are located! This procedure, properly done can take a day or more, even for an expert. It requires a lot of patience and many back and forth adjustments to achieve the proper results. If you are not up to this, get a pro! The NEC's are the most difficult projectors to adjust. You have been warned! I do not take responsibility for injury, death, or a broken projector. This is an advanced and complicated procedure for the novice.

END OF DISCLAIMER

The PG is a very complicated and very capable machine. Properly adjusted it is capable of producing a stunning, film-like image. As with most good things, setting this unit up takes TIME.

Ok, now that you are already bored reading, let's get on with it then.

The projector should ideally be mounted in its final location, but since this deals with the MECHANICAL setup the actual positioning of the PG will likely have to be changed once the projector ITSELF is properly aligned. However, the final position will then be absolutely accurate.



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