Question about Televison & Video
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Posted on Jan 02, 2017
SOURCE: TV changes channels itself
Have you checked to see if any of the front panel buttons are depressed and stuck??? this is a big problem these days?? I have also found the infared remote sensor to be bad on some sets that do crazy things all by them selfs.. A funny storry once i had was a customer called me after her mother called some goast finders as her maggy projection set would go on all by itself andf the channels would change and the volume would go up and down all by its self. funny thing I had a set just like thast in the shop at the time with the same problem and I scoped out the output pulse from the infared reciver on the set and that was putting out noise on the data line and caused the set to eratacly do all sorts of weird stuff. get the point?? its a stck button or the remote sensor is bad.
Posted on Apr 02, 2006
SOURCE: Philips 29PT9418/69G
A qualified tech will need to practice visual acuity technique! Look at power supply circuit for signs of stress,dis-coloration and/or bad connects.Check for bad 47mf/25v cap in area of stress.Replace BC-327-25 xistor w/BC-328 and replace BC-337-25 w/BC-338,if present in your set's chassis style.
Posted on Sep 25, 2007
SOURCE: Bush RFT TV
The picture tube of the tv has 3 color in CRT Red, Green, Blue. The red cathodeof tv set has no function, its either the resistor become higt resistance, that why u need a repairman to replace it.
Posted on Apr 11, 2008
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