So... recently (the past few months) the TV has been attempting to power up (can hear the fan running, and the screen slightly glows), then turns off and I have a constant lamp blinking light. After going through this a certain amount of times (sometimes 5 minutes, sometimes hours) the TV will eventually turn on. For the last month it has not turned on... replaced the bulb and still the same thing.
wierd thing is, that we do not really have this problem in the summer (assumed it was the temp outside). but cranked the heat inside and no help. it had trouble turning on last winter and summer was fine
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I've got an easy way for you to check, and then we can help you from there. First pop open both lids to your furnace (this may require a screwdriver). Turn up your thermostat, push the safety interlock button in if it has one (it's a button that turns off the power when the doors are removed), and watch.
On most modern furnaces (past 20-25 years) you'll hear/see: 1. Inducer fan 2. orange glow (ignitor) 3. Gas valve opening and ignition (flames) 4. Main Fan.
that's normal heater operation. The most common issue here is a burned out ignitor, in which case you wouldn't see the orange glow but the sequence would attempt to continue anyway (the gas valve will open and hiss gas, but it won't lite, then it'll give up and try again a few minutes later).
On older furnaces there's a pilot light to start with, the click of the gas valve and boom... ignition.
On new furnaces it's Inducer fan gas valve opening spark - ignition Main fan.
and there are some oddballs in between, particularly the Lennox Pulse. If that's your furnace just back away slowly and call a professional... some guys won't even touch those, so be sure to mention what it is... if you call a pro.
So go ahead and watch it run, then tell me/us what you see.
1. the motherboard might be bad and you will need to replace it.
2. or The power supply is bad
Chances are if its making clicks the power supply is bad and you will need to replace it. Which makes sense because constantly powering the tv on and off will damage the power supply or possibly short out your motherboard. These things usually cost about 200 bucks to fix at a local tv repair store.
Hi David and welcfome to FixYa. I am Kelly There are a few things to try before you go replacing parts.
1. after the unit has sat with no power for about 30 minutes plug the unit in and listen for an attempted sart on the compressor. An attempted start will only last for approximately 40 seconds. During that attempted start listen to see if you actually hear the compressor turning. If you hear it turning and it again shuts off wait another 30 minutes and try it again. (On a unit that has been in storage for more than 6 months it can take a few attempts to get it going.) If it just hums and does not move then your compressor is locked and as it attempts to start you will notice a slight dimming of the house lights. Don't give up on it right away... do about 4 cycles of the plug it in.. listen for the 40 seconds then the CLICK of the compressor thermal overload switch. If your not hearing a CLICK after 40 seconds or so then there can be a compressor PTC relay / thermal overload (KliXon) problem or the possibility that the run capacitor has failed. After all of these have been checked out then you start looking at controls and power. Give it a few more tries to see if it takes off. If it does not then just repsond here and someone will help you.
Philips TVs tend to have issues with bad capacitors in their power supplies. Failing capacitors tend to have slightly different ESR (equivalent series resistance) values when they have been left off, versus after they are warmed up and charged up. Either a new power supply board or replacement of the faulty capacitors will fix the problem.
Then it is probably not cold solder joints. You wouldn't think that an lcd TV would need a high voltage transformer but it does. They are very small compared to CRT televisions but they power up the screen. Without it you have no backround light to veiw what is there. There are two neon lamps on either side of the screen but they rarley go bad. My guess is the transformer ot the power supply feeding it.
If blower not working, and yoou hear a slight "Hum" with fan only on, try this. With power off to AC. Go up on roof, and slide a stick through opening on side near rear, and try to get to fan blades at rear of unit. try to spin the blades a few times, even if it only goes a little at a time. Unless you want to take all those screws out & remove cover to get at it better, but watch for wasps under there. Give fan a couple of full rotations, then have someone turn it on to fan only & see what happens. If fan finally works, let it run for a few minutes on fan, then try cool & see if it all comes together again. Let me know.
i took off the back and pulled out the the fan. Then put in a fat screw between a slight gap whick kept the fan from hitting what ever is causing the noise. probably not safe but nothing bad happened yet.
it sounds like the blue crt is failing Pull the front off and turn the tv on When it still has a good picture tap the blue crt if it flashes blue with lines across the screen then you know it is a bad crt
It very well could be the Blue CRT shorting out. However the not shutting off is not a symptom of the tube being shorted that sounds more like a signal board issue rather than a picture tube, as the signal board can cause all the symptoms you have described.