Hi folks, looking for some help with t.v. problem. I'm a retired electronics tech, but only worked in industrial electronics. Junior comes along (3 weeks ago) & says dad, fix my t.v. burning smell, no sound or pic & it goes tic, tic.tic. First thing I checked was the line output transistor. Short circuit. Ordered a new one ($24.00) turned the set on with the transistor out & power supply came up & sound. Couldn't see any signs of distress anywhere, so installed the new transistor. Everything o.k. soaked for 8 hours on a hot day & the set ran perfectly. Gave it back & have since been told it failed the next day. I don't have it back yet & don't know what the current problem is, but I would put money on it being the line out transistor again. I doubt that it is shorted turns in the line out transformer as it certainly wouldn't run for 8 hours. I could change all the electro's in the horizontal stage, but don't believe you should fix faults by such a blanket approach. Any help greatly appreciated. Dave.
- posted
15 years ago