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 3)

Back to Advanced Procedures Index

Page: 1 2 3 4 5


Step 10: Remove the HV lead from the appropriate tube you’re removing from the HV splitter. This is important! The HV lead snakes along the bottom of the chassis to the HV splitter. There are two plastic clips usually that hold the HV lead to the bottom of the chassis. They are somewhat hard to get to until the tube is partly removed from the set. Reach in with your fingers to loosen these clips.

VERY important! DO NOT pull on the red HV lead and expect the rubber boot to pull away from the HV splitter. These gray boots put quite a bit of suction on the HV lead, and you’ll end up ripping the HV lead out of the socket. Instead, slip a small jeweler’s screwdriver under the rubber boot to release the suction, then carefully slide the HV lead and boot off the HV splitter. Make sure you use an insulated screwdriver, and as a measure of caution, touch the inside metal connector to the chassis to short out any remaining voltage that remains. (there won’t be any, but that’s good high voltage practice!)

Step 11:
Time to loosen the magnetics (yokes and astig magnet) from the neck of the tube. The main deflection yoke and focus yoke have small thumbscrews that you loosen, so that the yokes can slide off the back of the tube.

The astig magnet has a Philips screw that holds it in place. Loosen it as well.

... Previous Page

Next Page ...


Copyright All Rights Reserved.