Is my TV worth repairing? I think the picture tube went bad??

Question

It is a JVC, we've had it a good 10+ years and I really like the TV so I hate to just junk it. The problem I'm having is the picture at times will shrink (and in turn would look like a widescreen), sometimes becoming just a thin line. I have had this same problem with a TV or two many years ago, we ended up throwing the TV's out. I like this one and would like to keep it around if it's worth fixing. Anyone know what this is, or if it's repairable? And if so, how expensive would it be? Thanks!

Answer 1

It probably is repairable but it would not be practical to repair it.  You probably will have a hard time finding some to do the repair anyway.  TV's under $500 are pretty much disposable items these days.

Answer 2

I do not think that the problem is caused by an intermittent cap . they rarely go int , however it is extremely common for the vert chip to develop bad soldered joints , you description fits that scenario perfectly ! all it needs is a TV Tech or anyone competent with small soldering iron to just re solder the chip !!! I can almost guarantee it !!!

PS Def not the tube !!!!

Since I am in the business of repairing things I hate saying buy a new one ! its like admitting defeat .so go for it and get it repaired !!!!!

Cheers Pete

Answer 3

I would wait for Pete or Tech-Man to chime in here.  On the surface it probably would not be the CRT.  More like a vertical deflection amp.  Not too expensive to repair, most TV shops do them in their sleep.

Answer 4

No it is not.

Repairing a TV can be about $100.00 per hour. That does not include any parts. You must also consider the cost of your time dragging that wreck to the shop, or pay more for a house call -if you can even find one. (even at half the price it's still too much)

If if your problem is simple, a bad seal on the anode wire, a bad capacitor off the fly back transformer.... It's still not worth it.

You could probably buy a CRT TV like yours at Wal-mart of the same size for less money and it will probably have a DTV tuner included.

This is the sign you've been waiting for... It's time for a new one.

Answer 5

Yes, it is repairable.  It appears like a bad electrolytic capacitor in the vertical deflection circuit or the vertical I.C. chip is slowing going south.  One test you can do, if you are a DIY'er, is to spray the vertical I.C. chip (Integrated Circuit) with Zero Freeze and see if the screen goes back up to normal size.  If it does, then you have a thermal problem with the I.C., otherwise I strongly suspect one or more of the capacitors defective.

Answer 6

Nowadays CRT TV's are cheap especially the chinese made, even the Japanese branded ones are getting cheaper too, costing as low as $160 for a 21 inch CRT TV's, but of course the LCD /  Plasma TV still a high price like $750 - $800 for a 32 inch.

Your JVC TV has a problem on the Vertical Deflection Circuits, as you stated that the picture shrinks like a widescreen, and 'sometimes' just a thin line.

Your TV problem is an 'intermittent' one,

It seems it has a faulty Capacitor/s or an IC chip,

and it's not too costly to replace or change this defective part/s. I don't know the amount of service charge in your area, but it will be reasonable to have it fix by a qualified experienced Electronics Service Technician/Engineer;

and it is better if you know the guy to have more trust and could give some discount on charges, that could cost you between $20 - $30 total.

I am an Electronics Engineer and Technician too, and had a long years of experienced on Electronics including TV's.All of my TV's are working fine, and the oldest is a Sony 18 inch which is 22 years old and the newest is 8 years.

Good Luck!