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Tv turn on,this happen.Make a fist bang on the tv frame,see if tv have a picture come back or have it flashes in and out?Yes,than tv is having cold soldering joints on the video board pins that connections to between video board and the CRT-(tv tube) those joints connections pins on the video board are to make the CRT-(tv tube) to have a picture.U have all the tools like a soldering iron,a roll of solder and also can u do basic soldering work?Yes,take the tv aparts.The video board,that the the board that connected to the CRT-(tv tube).Resodering all the soldering joints connections pins between CRT-(tv tube) and video board should solved this problems.Or tvs shops can do those resoldering for u,by telling them the problems.It should cost u like around $50.
What brand? Often people accidentally turn the internal speakers off, although probably not on a combo unit. Other times folks turn the audio all the way down on their cable box or satt receiver, then there could be no or low audio for the TV reception. But dvd or vhs sources would still work. Always possible for the small speaker to blow, or audio output to fail.
What type of Combo?
TV & vcr
Does the TV turn on when u shob in a VHS tape?
Electricity is dangerioius ::
UNPLUG POWER CORD
open back, facing the back of TV, on your RIGHT, look to see if there is a fuse. BEFORE touching anything, take a screw driver, (anything metal) and place it inbetween metal BLADEs at end of AC cord. [of cause the AC plug is NOT pluged into the wall socket] ( this is to get any electircity still in the ckt. discharged!)
[Don't be offended!!] If u know how to use a ohms meter, test fuse or replace it with the exact value (Voltage & current)
Try that for now::