HDTV has no sound

Getting you to the proper documentation would depend on your current understanding of electronics.

Presumably it's stereo, in which case the loss of both audio channels suggests something that's common to both. Power immediately comes to mind.

Sylvia.

Decades ago, I had two stereo receivers/amps that my EE uncle tried to fix by tapping every capacitor until he gave up. I also had a sim problem once with a computer that went blank in RS232 tty output but I fixed it only when the manufacturer told me exactly which capacitor to replace (in a twist, the only way I could actually get a single such capacitor was to request an "engineering sample"). I am a Ch E with two mandatory semesters of EE and two introverted EE uncles who never really explained what they were doing while I was growing up. So I probably know more than I have confidence in. I am looking at this $80 TV that has worked for about 18 months and am trying to figure if it is worth fixing. I suspect if I throw it out, my uncle will pull out of the trash and put it in his shop but never quite fix it anyway.

- = - Vasos Panagiotopoulos, Columbia'81+, Reagan, Mozart, Pindus, BioStrategist

It sounds like you need to go to the menu and turn your speakers to "On."

I agree.

*+-I agree.

Nope. Turned them (mute) on and off. Only when I turn them to max do I have a faint sound on the headsets, but not (yes, I remved the headset) the speakers.

SOmething burned out. But before I open it to hunt, what is the likeliest?

- = - Vasos Panagiotopoulos, Columbia'81+, Reagan, Mozart, Pindus, BioStrategist

This unit is no doubt heavily integrated. The probability of finding and replacing the correct component is small.

It's possible that both the headphones and speakers are driven by the same chip. It might be the problem.

If it has stereo sound, one bad capacitor wouldn't take out both channels. And, if there are audio inputs (like for a DVD input), you can try an external sound source to see if the amplifiers and speakers are OK.

Firstly, you have to exercise the problem, see what part of the block diagram the fault is in...

Second, you have to inspect the hardware and determine which components are in which block. If there's a melted thingummy and you can see the crater where it lost its smoke, things get easier.

Then, with about twenty minutes of work into the job, you think about 'worth' issues.

I doubt

int

That's perhaps the first trouble shooting 'rule of thumb', check the power.

George H.

"On."

ve a

kers.

Did this ever work? If not, why did you not contact the manufacturer within warranty?

Assuming the typical headphone jack setup where insertion of the headphone plug disconnects the speakers from the amplifier, my guess is that there is something wrong with the headphone jack or its wiring. The faint sound you're getting (in both ears?) from the headphones sounds to me that instead of being connected to left and ground and right and ground, it is connected between left and right. Open it up, look for obvious short circuits or open circuits, check continuity.

"On."

If the ground's become disconnected, the sound through the headphones would be the difference between the left and right channels. That removes only sounds in the middle of the sound image. The result is somewhat odd, but doesn't sound as if there is almost no audio.

Sylvia.