9p6040 c102 picture shrinks and them explodes, and shrinks and explodes when we turn it on. after it warms up, picture is fuzzy Have same issue model 9P60349102. Have extended warranty for picture tubes and repairman will be out on Monday. Is this picture tube problem and if common the repair guy should be well aware of it prior to showing up. Do I smell product class action suit issue???? [email protected]

Ur tv convergence ICS are dying.This problems,the shop should cost u about $300-350 for parts and labors

Yes the coolant in the CRts need replacement. You can get the Phillips CRT Coolant repair kit at the following link which contains the coolant and instructions.
http://servicemanuals.vstore.ca/

Put the old chip back in...does the shrinking/expanding problem return? If so the new chip may be faulty. 

If the problem stays the same - no audio/video  - check your soldering, cables, etc. 

Not positive but this sounds like the impending failure of a specific power supply, namely an output providing deflection voltage to the CRTs. This may be simply a circuit on the main supply or could be a separate supply on a different board than the main supply.
If it is not affecting brightness and contrast, it isn't likely to be the primary supply that is failing. I'm pretty sure it will continue to degrade.  

I had the same issue. The screen would shrink and then expand over and over. After thrity minutes it would correct itself. 
After a few months of doing this it just broke - no sound and no videe but the power light was still on. 

I searched these forums but did not find clear instructions or kits on how to fix it. I gave up and called in a repair tech. He fixed my TV in less than 30 minutes. 

To help others I documented the fix and created a repair kit and step by step quide on how to fix the problem. You can find it here. http://www.magnavoxhelp.com

PTS 18008447871

I had the same issue. The screen would shrink and then expand over and over. After thrity minutes it would correct itself. 
After a few months of doing this it just broke - no sound and no videe but the power light was still on. 

I searched these forums but did not find clear instructions or kits on how to fix it. I gave up and called in a repair tech. He fixed my TV in less than 30 minutes. 

To help others I documented the fix and created a repair kit and step by step quide on how to fix the problem. You can find it here. http://www.magnavoxhelp.com

IC's on convergence bd. 1st try opto coupler philips part# 483520988561 actual part# to buy HCNW136 some replace all 3 IC's philips# 483520987834 actual# MC34065p and philips# 483520987712 actual# SC78104 search google to buy.Datasheets at datasheetcatolog.com

Screen shrinks and expands and wams up after 10-20 minutes and then went out completely? Power light still comes on and remote still works? This is a common problem for this model and is most likely related to a bad chip. A tech will charge you over $300.00 to fix it but you can buy the repair kit including the chip, step by step instructions and repair manuals for under $40.00 if you are willing to do a little soldering. Go to http://www.magnavoxhelp.com/ and enter your model or chasis number and order the kit. This will not fix color problems!

If your video is shrinking and expanding its the opto IC. You can get a repair kit from www.magnavoxhelp.com