Home Theater sales, calibration, service, and discussion forum. Hundreds of free manuals & setup tips.

Sign up and receive the latest newsletters by email!     Join the Forum discussions!    
    Site Map  
Home Products
For Sale
Links Contact
CRT Primer
Troubleshooting Tips
Mounting Methods
Definitive CRT
Projector Setup Guide
Tube/Raster Setup
Tube Condition (Wear)
Projector Rankings
Video Processors
Ampro 1500/2000
Ampro 2300/2600
Ampro 3600/4600
Barco (Older Analog)
Barco 70x/Cine7  
Barco 500/800/801
Barco 808/Cine8
Barco 120x/Cine9
Dwin 500/700
Electrohome ECP 
Electrohome Marquee 
Panasonic 108x
Sony 10xx
Sony 125x/127x
Sony 1292
Sony D50
Sony G70
Sony G90
Zenith 841/851
Zenith 895/900
Zenith 1200

NEC PG Tube Replacement

 (Page 1)

Back to Advanced Procedures Index

Page: 1 2 3 4 5


The following procedure was written by Curt Palme. 

I’ve been asked to write up a quick procedure on how to change a tube in an NEC PG projector. Removal of tubes in the NEC XG Series is somewhat similar, this can be used as a guide for those as well.

Material Required:

-flat blade screwdriver
-flat blade thin (jeweler’s) style screwdriver
-surgical tape
-Philips Screwdriver
-RTV silicone

While it’s possible, I do not recommend changing the tubes on any NEC set while it’s on the ceiling. The glass on the necks of the NEC tubes is somewhat thinner than the Barcos and Marquees, and it’s relatively easy to snap the neck of an NEC tube if you bash it as you install or remove the tube. Do this with the set floor mounted on a table.

Step 1: Flip up the top cover

Step 2: Remove the two Philips screws on each side of the set that hold the front lens cover in place

Step 3: Remove the 6 Philips screws across the top metal plate that hold the top of the tubes in place

Step 4: Loosen (these screws do not come out all the way) the two screws that hold the deflection board in place.

Next Page ...


Copyright All Rights Reserved.