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The picture tube emission is dropping causing the picture to become washed out, the rejuvenating process removes build up of crud from the guns exposing more emission material, this improves quality in the overall picture. But since the picture tube was done a week ago it suggests the guns have been stripped of their remaining material and the picture tube will get progressively worse over time.
The snap you hear is likely from the high voltage in the set. The worst case scenario is that the picture tube (CRT) is shorted and is arcing internally causing the set to shut down. There are other less expensive possibilities such as the flyback transformer which can also fail in such a way as to arc. You may be able to see through the top ventilation slots in back as you power the set. The neck of the tube extends back into the rear cabinet and you could possibly see a flash inside the tube neck if it is arcing. I would have to recommend you have a technician check this problem to diagnose it. The tube, if it is defective and out of warranty, would exceed the cost of replacing the TV. Check your warranty as the tube generally has a two year warranty and other parts one year with 90 days on labor.
I think that you will find the picture tube to be more expensive than a replacement TV, if it is still available (unlikely). That being said, it is also unlikely that the tube itself is the problem, The more common problem is the horizontal output transistor or the flyback transformer. Either part should still be available for a reasonable cost. Check with a local servicer for the part numbers and costs. These are common parts.
BULB ? are you talking about the picture tube itself ? there is no bulb in your set that is replaceable like a DLP set if you need a picture tube your cost installed between 400.00 and 700.00 its a big job and i have not done one in years and years ,its just not worth the money . but if you really love the tv thats another story . i hope this helped . ...if this answer helped please rate a 4 or 5 stars , this high rateing will help keep me in the paid answer department
No picture tube is cheap to replace. Especially a Sony tube. And besides the cost of the tube there's the labor cost to install it and some tedious adjusting needs to be done to set up the replacement. When a picture tube fails it's time to replace the set.
Now having said all that, there are different kinds of lines that can show on the screen. Some are because the tube is bad, but others can come from less expensive parts on the circuit board in the set. Without seeing the lines for myself I can't tell you about yours. If you are wanting to keep the set, I would suggest having a qualified shop check it. The can tell you for sure if it's the tube or not, and give you an estimate for the cost of repair.
very expensive. depends on what the tv cost. how old is the tv? 36 inch tubes are high, especially now that glass tvs of that size are becoming rare. I didn't check the specs on that tv, but if it is not hi-def you might as well upgrade. I like rca too, its my favourite, but they don't last forever.
However if it is merely the transformer, that could be less than $100. You may be able to get a free checkup for the tv/estimate or maybe one for under $50. those tvs weigh a ton though...
Bad technicians always say picture tube problem when the TV has black screen with sound.
This a false statement and in some cases techniciacns use this to scare the owner or the charge a hefty amount.
The truth is that picture tube outlast most component in the TV. If it will fail, it is gradual like the colors will fade or one or several color will be missing. This condition is the degration of the filament in the gun (CRT tv has three -Red, green , blue)
I started to repair TV in the early 80's and only in one occasion that the Tube fail and it is a crack in the neck.
For black screen with sound, the most common cause is the HV supply problem / Horizontal section. This can be caused by many things, like flyback transformer failure, horizontal outout transistor, horizontal drive, etc.
For the cost-depends on where you are, in some countries labor is dirt cheap, in other ountries the parts are expensive.