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[omega3000]

Just when you get break even paying everything and all is well something else crops up  tv sounds like a bag of nails and the sound has got a mind of its own  one minute its all fuzzy and can just about hear it then it goes full blast on own  just forked out for a new washing machine last month now this 
Going to take it to bits and see if i can fix it 

[cem_devecioglu]

this summers surprises were a tv, UPS, monitor, an accident, wishbones for both cars, one engine mount, a chimney (+sat antenna)...
 
and still summer not finished yet
 
obviously I need deep pockets

[plym ian]

Just when you get break even paying everything and all is well something else crops up  tv sounds like a bag of nails and the sound has got a mind of its own  one minute its all fuzzy and can just about hear it then it goes full blast on own  just forked out for a new washing machine last month now this 
Going to take it to bits and see if i can fix it 

mine did that then I found out it was a loose connection on the lead going in

[TheBoy]

Sounds like a knackered speaker...

[omega3000]

So far i have not touched the tv .... someone got me doing another job  but she makes plenty cups of tea ... thanks for that chaps i will inspect the speaker wires providing i can get the back off the tv first  never took one to bits before 

[TheBoy]

If its CRT based, be aware that the tube acts as a bloody great capacitor, and it can easily kill you, even with it unplugged.

[omega3000]

If its CRT based, be aware that the tube acts as a bloody great capacitor, and it can easily kill you, even with it unplugged.

Had to look that up on wiki  " cathode ray tube" no i dont believe it is on of those ... been delayed for inspection till tomorrow , if it dont work ill be down the breakers for a second hand new one  its only for upstairs & swmbo's soap time 

[TheBoy]

So its LCD or LED then?

[omega3000]

LCD

[TheBoy]

OK, the inverters can generate some high voltages, so unsure its unplugged before removing cover

[omega3000]

OK, the inverters can generate some high voltages, so unsure its unplugged before removing cover

Will do , just been looking through the online help section for the tv ...

Despite replacing this, the audio o/p ic IC201 KA2201 (TBA820M) and variouscaps around it the fault remained. adding a 0.1mfd cap from the o/p of the ic (pin 5) to chassis, this completely cured the fault

    whats all that about    will take the back off in the morning 

[zirk]

OK, the inverters can generate some high voltages, so unsure its unplugged before removing cover

Will do , just been looking through the online help section for the tv ...

Despite replacing this, the audio o/p ic IC201 KA2201 (TBA820M) and variouscaps around it the fault remained. adding a 0.1mfd cap from the o/p of the ic (pin 5) to chassis, this completely cured the fault

    whats all that about    will take the back off in the morning 

TBA820 is a low power op amp predominately used for low power Audio, no more than a 1 Watt o/p  from memory, so not sure what its doing in your TV unless its a Head Phone driver, I use to come across them in some Two Way Radio Handportables audio stages, they can go bang, but generally either do or dont work.

Could be a typo and its from the TBA800 range of Amps, probably chucking out 5 watts or so, again they either work or dont, if its intermittent could be dry joint or a leaky capacitor somewhere , but as said first choice would be check speaker and or connectors, speaker will be either 8 or 4 ohms if measured, if you do get the speaker out gently move the cone around and see if you can hear the speaker coil scrapping with movement.

[Elite Pete]

Make sure the household insurance is up to date and knock the tv over

[omega3000]

Hopefully it was a false alarm , got all the tools together and swmbo came up and said what you doing  fixing the speaker "why" it was fine last night she said " i just pushed the scart lead in a bit more "  will see if it lasts and if need be i will check all thats be said ... many thanks 

[Andy H]

SCART (from Syndicat des Constructeurs d'Appareils Radiorécepteurs et Téléviseurs, Radio and Television Receiver Manufacturers' Association)

French and therefore 'characterful' or crap depending on your attitude 

My in-laws previous CRT TV developed a similar fault & I found that all the solder joints between the SCART socket & the circuit board had failed. 5 minutes with a soldering iron fixed it