TV worked fine w/out problems for past 13 yrs and a couple days ago it started making popping noises and displaying white flashes across the screen. I have verizon fios if that matters.
It is a common problem usually when the unit is an old enough, the cause is a leak capacitor at horizontal section. sometimes bulged to its casing due to overheat and used for a long period of time.
SOURCE: popping noise
The anode cap on the back of the tv tube is leaking the high voltage be careful as going into the back of a tv it store very high voltage and could be fatal.the solution to problem get a tube of clear or red silicone discharge the high from the tube,you do this by getting a alligator clip with wire attach clip to a ground wire on the back of the tube attached the other end of the wire to screw driver gently push it under the Anode cap you will hear a popping sound with i little sparks. remove the cap from off the tube get some alcohol wipe the dirt away apply the silicone around the anode and the anode cap place in on back and leave it to dry and cure for about 7 hrs close up back and turn on your tv and all the popping sound is gone.good luck.but if it is the wire for the anode cap that comes from the flyback is the one leaking change the flyback.again good luck.contact me on fixya.com or email me at [email protected]
SOURCE: sony trinitron kv-27fv17
TWO Blinks---B+ over current protection (OCP) , unit goes to the standby, this means there is a component inside your TV set, in the main power supply or the sweep power supply that is not letting the TV set's power supply regulate properly. I'm sorry to say, there is no quick fix for this and is going to need to be diagnoised by a trained tech. Good Luck
SOURCE: Sony Trinitron 29inch Color TV
The 2 blinks are an indication of over-current. This is usually because of a shorted component. The most common is the horizontal output transistor. This will be a 3-legged part attached to a heat sink close to the flyback transformer (part with red wire coming out the top). This transistor will be marked C4856 or something similar. Update this with the exact marking and I'll provide you with the full part number and approximate cost.
Dan
SOURCE: Toshiba CE35f15 TV
This is a vertical circuit problem that is either bad connections on the vertical IC or a defective IC. If you can solder, you can fix this yourself. Look for a small flat IC attached to a heatsink with about 9-11 pins. It may be marked LA7837 or something similar. Try resoldering the pins first. If that fails to resolve the problem, replace the IC. There may be defective caps in the circuit as well, but those don't usually cause complete vertical failure. If the picture does not return fully, update this and we'll continue on to the next step.
Dan
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