I described my problem poorly the first time; I'll attempt to detail the symptoms more precisely here:
Power on, the middle light flashes and we get the normal start up bleep-bleep-bleep start-up sound; the middle light continues to flash for 30 seconds or so (sometimes during this time, there is a tone - high pitched noize. This is not everytime however). After the approx. 30 seconds, the set shuts itself off and then turns itself back on; I should say attempts to turn on - there is no picture; this repeats exactly 3 times and then on the fourth cycle, the start up bleep-bleep-bleep comes again and then all 3 lights flash (top 2 green lights and the bottom red light). At that point, the set can't be shut off. When we hit the power button, the cycle begins again with the single light (at time the tone) for 30 seconds 3 times. Obviously, we have to unplug the set to get this to stop. The only attempted fix thus far was a lamp replacement (we tried that as the 3 lights flashing is the bad lamp symptom indicator). I guess it's possible the replacement lamp we purchased came out of the box bad, but I find it unlikely and wanted to see if anybody knows a fix to this problem.
I worked for Toshiba America. All of these televisions are designed to fail after a reasonable time. They make way more money in the long run from parts and service then they do selling it in the first place. Is is this way with many technologies.
I don't have a suggested solution, as my 43" is on the fritz at the moment. But I can tell you a few things from my own experience. As noted elsewhere, if you have the "saw sound" (mine was more like a table saw or router), it's the color wheel. I replaced mine last year using the instructions at jangro.com. My most recent problem is that my set would attempt to start up (music), but the lamp would not light. If you either remove the rear cover (then you have to either tape or hold the interlock), you can actually watch and listen to the ballast try to light the lamp. On my set, it tries three times and then does some sort of reset, repeats this cycle two more times, and then I get all three lights on the front. When this happens the only thing that you can do is pull the plug and wait 30 seconds or so. It will not respond to the remote control or power switch. Since I have already replaced a lamp once (and my set has only about 6000 hrs on it), I thought it was the ballast. I replaced the ballast today, and still no joy. I think I am going to try one more lamp, and then this TV is going to become spare parts for someone...
FK
Som-one,
the noise you hear after the melody would you describe it as like a buzz or a small chainsaw? If so you have a bad color wheel assembly. If the noise is intermittent than your issue could be the ballast that controls the lamp. If you've already changed the lamp the next step should be the ballast.
207 views
Usually answered in minutes!
yes i have a similar froble turns on beep beep beeps power light stays on but no picture no sound, lite smell of burning
Exact same problem .
No picture , cannot switch off only at wall.
Email: [email protected]
I also have the same problem where unit can only be shut off by unplugging. Center light blinks. The only noise is a faint whirring that sounds like a fan. After about 8 min, the musical (3 tones) startup sound occurred, but no change to picture nor audio. We replaced the lamp a few months ago, so I'm pretty confident we do not have a lamp problem. The suggested solution by BIGTV is to replace the color wheel assembly or lamp ballast. It doesn't make sense to me that replacing those items would affect my ability to turn the tv off with the remote or on/off button. Can you provide additional comments?
I have the exactly problem he described - very high pitch and very loud noise come from back. It sounds like from light bob area, may be the power supply close to it. The unit shut its self off very often, the frequency may related to the room temperature.
Same problem no picture but audio is there.
×