Anyone work on televisions or know anything about them?

["Turbo-T"]

Our 2001 model Curtes-Mathes sometimes displays funky colors on the screen when turned on. Turn it off and give it 30 minutes and all is good again.

When turned on and working normally you will hear an audible click. Anytime the screen shows the funky colors is when you don't hear the click.

Here's a few pics I snapped of what it looks like when it acts up.

 

[EVIL]

My Brother in law is a pro. Let me know what brand and model number and i'll ask him.

D

 

[novaderrik]

that's what Fox affiliate channels are supposed to look like...

honestly, with the prices of modern flat screens as cheap as they are, it's probably not even worth trying to fix the one you've got.

 

["Turbo-T"]

My Brother in law is a pro. Let me know what brand and model number and i'll ask him.

D

Thanks...it's model # CM27101S

that's what Fox affiliate channels are supposed to look like...

honestly, with the prices of modern flat screens as cheap as they are, it's probably not even worth trying to fix the one you've got.

LOL....

We're waiting for this one to finally quit working before we can even justify a flat panel replacement.

 

[SFITurbo]

Had a similar problem with an RCA a few years ago, ended up a solder run on a circuit board due to heat, (EPA rules against lead solder). Repair man ran a new connection and has been working fine for several years now.

 

[Razor]

The set is not "deguassing". When you take the cover of the back there is a large black coil thing that goes around the whole picture tube. That is used to degauss the set and that way the beam from the tube is not getting deflected improperly.

When you first turn it on, the relay is suppossed to "click" and apply 120v to the degauss coil for a few seconds. So if it doesnt click, or degauss.. look for loose connections on the coil where it plugs into the main pcb, bad contacts on relay.. thats about it.

If the shadow mask on the set got moved, it can also cause this.. but this only happens if the set was dropped. To fix that requires a new tube.

If the set works.. then its a bad connectioon on the pcb where the degauss coil plugs in.

Lastly, make sure you dont have any big magnets near the TV set. This will create this condition as well. And the way you can manually degauss it is take a large magnet.. like from a woofer.. and go in circular motion in front of the tube.. and slowly start walking back away from it making smaller circles the further you go back.

HTH

 

[EVIL]

The set is not "deguassing". When you take the cover of the back there is a large black coil thing that goes around the whole picture tube. That is used to degauss the set and that way the beam from the tube is not getting deflected improperly.

When you first turn it on, the relay is suppossed to "click" and apply 120v to the degauss coil for a few seconds. So if it doesnt click, or degauss.. look for loose connections on the coil where it plugs into the main pcb, bad contacts on relay.. thats about it.

If the shadow mask on the set got moved, it can also cause this.. but this only happens if the set was dropped. To fix that requires a new tube.

If the set works.. then its a bad connectioon on the pcb where the degauss coil plugs in.

Lastly, make sure you dont have any big magnets near the TV set. This will create this condition as well. And the way you can manually degauss it is take a large magnet.. like from a woofer.. and go in circular motion in front of the tube.. and slowly start walking back away from it making smaller circles the further you go back.

HTH

You are correct on the degauss thing. If a tv is put near a magnet the degauss is meant to fix the screen. On a picture tube tv when you first turn it on you hear a loud sound like someone plucked a note on a bass guitar. that's the degauss working.

I would not recommend prodding around in the tv though. If you touch the wrong thing you may get zapped.

I also need to know the brand of the TV.

D

 

["Turbo-T"]

Thanks...no I wouldn't dare try messing around inside a TV...I've read up on the high voltages one carries, especially the flyback transformer, and how it can be as much as 30,000 volts! Touching that would make one go---> I've also read the back of the picture tube is made of a thinner glass than the front, and if accidentally bumped wrong can implode violently. I don't know how often this happens by a TV repairman in the TV repair business but it's certainly something that would keep me on edge, and in a protective suit.

The set works fine most of the time, just a time or two when turned on it doesn't click and the picture comes up discolored, as if someone had a magnet near by.

No big magnets are near the TV.

EVIL, it's a Curtis Mathes model # CM27101S

 

[EVIL]

If that's the case then it's just like Razor said. It's your deguassing unit. It obviously isn't working all the time. Since it only comes on for a second on initial start up then just turn the set off and on again until it does it's job. My brother in law said it's not worth the cost of repairing the unit since new tv's are fairly reasonable. He suggests buying a panasonic. According to him they make a better product.

He's been in the Tv repair business for years and hasn't led me down the wrong path yet. Eccept for marrying my sister!