Could my A/C have killed my TV?

[Scouzer]

I have/had a crappy Phillips 20" CRT TV. It's only two years old, and I don't watch much TV (I didn't even have cable for 8 months of that time!) but it died anyway.

I turned it on a couple days ago, and it shut off immediately. Strange. I looked at the power bar, and it had shut itself off. I wiggled the power bar, tried again, power bar shutoff again. Plugged the TV with an extension cord into a different outlet and it turns on properly, shows some weird colours, and shuts itself off within about 20 seconds.

The reason why I suspect my air conditioner: It shares the same plugin as the TV. Could it have screwed with the voltage when it turns on/off enough to break the TV?

The way my plugins are laid out I have my window A/C, TV, Cable Box, Router and DVD Player all sharing the same two sockets. I had assumed if the wiring was unable to do this, it'd just blow the breaker, not break my electronics...

 

[QuixoticOne]

Yes, the AC's effect on causing dips and spikes on the power line could well have harmed the TV.
Granted a properly designed TV wouldn't be susceptible to that since it should have good surge and brown-out protection. Good luck finding a 'properly designed' TV, however!

I would not plug anything delicate into the same wall outlet or power strip the AC is on!

A TV repair shop may be able to easily fix the TV, though, often it isn't all that hard to do.

 

[Newbian]

Did a mouse pop out of the A/C unit and chew on the TV wirings?

 

[Cyco]

It's all about global warning. Did you consult Al Gore?

 

[grrl]

Originally posted by: Newbian
Did a mouse pop out of the A/C unit and chew on the TV wirings?

WWYBYWB?

 

[Newbian]

Originally posted by: grrl

Originally posted by: Newbian
Did a mouse pop out of the A/C unit and chew on the TV wirings?

WWYBYWB?

I would tell you but then I would have to kill you.

It's been awhile since I had a account and I doubt anyone would remember since the main account at the time was banned 2 years ago.

 

[grrl]

Originally posted by: Newbian

Originally posted by: grrl

Originally posted by: Newbian
Did a mouse pop out of the A/C unit and chew on the TV wirings?

WWYBYWB?

I would tell you but then I would have to kill you.

It's been awhile since I had a account and I doubt anyone would remember since the main account at the time was banned 2 years ago.

I shall ask no more questions then.

Or maybe you lurked for a few years before finally deciding to join?

 

[Newbian]

Originally posted by: grrl

Or maybe you lurked for a few years before finally deciding to join?

I occasionally checked off topic and pc gaming after that happened and made a few other accounts but never got back into it like I used to since I found a few other forums and games I got busy with.

WoW will do that to you.

 

[Scouzer]

Originally posted by: QuixoticOne
Yes, the AC's effect on causing dips and spikes on the power line could well have harmed the TV.
Granted a properly designed TV wouldn't be susceptible to that since it should have good surge and brown-out protection. Good luck finding a 'properly designed' TV, however!

I would not plug anything delicate into the same wall outlet or power strip the AC is on!

A TV repair shop may be able to easily fix the TV, though, often it isn't all that hard to do.

Really? I didn't think anyone actually repaired electronics anymore these days!

Wonder if we have a shop in this town...

 

[wwswimming]

Originally posted by: ScouzerThe reason why I suspect my air conditioner: It shares the same plugin as the TV. Could it have screwed with the voltage when it turns on/off enough to break the TV?

The way my plugins are laid out I have my window A/C, TV, Cable Box, Router and DVD Player all sharing the same two sockets. I had assumed if the wiring was unable to do this, it'd just blow the breaker, not break my electronics...

yes. ABSOLUTELY.

i learned that the hard way.

boring part:

when current is going through a device like a motor - the motor
that powers the compressor in the AC - and the motor shuts off -
it can generate a HUUGE voltage spike on the line. the current
wants to keep going, that's one of the characteristics of "inductive
devices", of which a motor is one.

actually, you have a great set-up for someone real-life testing.
now that your TV is hosed, why not find an AT'er with some decent
technical gear (storage oscilloscope) & hook it up to the power line
(scopes have high impedance inputs, so hooking a scope up to the
power line is not the same is touching it with your finger. usually.)

cycle the A/C and take some pics of the power line with the scope.
could be interesting.

 

[Scouzer]

Afraid the only AT neighbour I have is ~400km away... Colt45

 

[Bignate603]

Originally posted by: Scouzer

Originally posted by: QuixoticOne
Yes, the AC's effect on causing dips and spikes on the power line could well have harmed the TV.
Granted a properly designed TV wouldn't be susceptible to that since it should have good surge and brown-out protection. Good luck finding a 'properly designed' TV, however!

I would not plug anything delicate into the same wall outlet or power strip the AC is on!

A TV repair shop may be able to easily fix the TV, though, often it isn't all that hard to do.

Really? I didn't think anyone actually repaired electronics anymore these days!

Wonder if we have a shop in this town...

While you can repair it you'll probably end up spending more than it's worth.

 

[BigJ]

Originally posted by: Bignate603

Originally posted by: Scouzer

Originally posted by: QuixoticOne
Yes, the AC's effect on causing dips and spikes on the power line could well have harmed the TV.
Granted a properly designed TV wouldn't be susceptible to that since it should have good surge and brown-out protection. Good luck finding a 'properly designed' TV, however!

I would not plug anything delicate into the same wall outlet or power strip the AC is on!

A TV repair shop may be able to easily fix the TV, though, often it isn't all that hard to do.

Really? I didn't think anyone actually repaired electronics anymore these days!

Wonder if we have a shop in this town...

While you can repair it you'll probably end up spending more than it's worth.

Yep. You can get a set off of Craiglist for $20-$50. The repairs on the current set will likely run $75-$150.

 

[Modelworks]

Sounds like the voltage regulation has failed.
CRT tv have a supply named B+ . Everything runs off of this supply. If the voltage goes above a preset limit then the set is designed to shut down.
It is a safety feature since the B+ also supplies the flyback transformer that powers the CRT. If that voltage goes too high then you start emitting x-rays from the CRT. A definite no no.

 

[Rubycon]

MOV's across the input line will clamp and reduce spikes from induction motors on the same circuit to reasonable levels.

If you're seeing strange colors it could be the degauss coil thermistor is shunted keeping the coil current high. This is bad because it's a low resistance device and will heat quickly - or trip overcurrent protection. The good news is if that's what it is the part is very cheap.

 

[Zim Hosein]

Originally posted by: Newbian

Originally posted by: grrl

Originally posted by: Newbian
Did a mouse pop out of the A/C unit and chew on the TV wirings?

WWYBYWB?

I would tell you but then I would have to kill you.

It's been awhile since I had a account and I doubt anyone would remember since the main account at the time was banned 2 years ago.

You can tell me, I gurantee that you can't kill me Newbian!

 

[Newbian]

Originally posted by: Zim Hosein


You can tell me, I gurantee that you can't kill me Newbian!

I missed posting in the Stargate threads you made but then again RDA was still around and the series was top notch.