Re: REQ: RCA TX808H service manual



Meat Plow <meat@xxxxxxxxxxxxxx> wrote in
news:18e4kv.712.19.1@xxxxxxxxxxxx:

On Sat, 15 Sep 2007 18:37:53 +0000, adambomb wrote:

No audio on RCA TX808H tv. It's a 13" tv and should be relegated to
the trash pile, but it's my gf's dad's tv and he was hoping it could
be fixed.

If it's not the speaker or audio cable then it looks like maybe some
board repair is in order.

Thanks in advance.

Did you check the speaker/wiring? Does it have a headphone jack that
interrupts the speaker? Many things can usually be checked/verified
without a service manual for a small tv like that.



I checked the speaker and wiring with multimeter, and everything is good.
The set has excellent picture, just doesn't have audio when powered on. No
headphone jack present; only video and audio inputs. This is about as
basic a tv as I have seen.

Here's something I just found out. Apparently, after the set is on for a
long while, maybe 2 hours, the sound starts working! And I mean it works
perfectly, so that eliminates the speaker and cable for sure (cable tested
perfectly after ohming it out.)

Warm-up problem maybe? But it seems that would happen a little sooner than
a couple hours. Also, after the sound started working, I powered it off,
then powered it back on again after a few seconds. The sound still works.
Seems like when something cools down, that's when it stops working.
.



Relevant Pages

  • CD player does not send output to sound card
    ... Whenever I put an audio CD in there, ... the hard disk, the sound comes OK. ... I can only get the sound if I plug the speakers directly ... into the headphone jack of the CD ROM drive. ...
    (Fedora)
  • (Not OT) Soul of Sound-Olson
    ... conversion to stereo sound. ... To return to the story of audio, the early transistor amplifiers used ... so the first generation of transistor amps weren't even ...
    (rec.audio.opinion)
  • Just for Ludovic
    ... Audio - Science in the Service of Art ... Audio products must sound good. ... by selecting loudspeakers of differing timbral signatures and directivities, ... and by adjusting the acoustics of the ...
    (rec.audio.opinion)
  • Re: Tip for OPEN MINDED Audiophiles
    ... electrocuting myself if I had known that. ... an audible effect on your sound system. ... I was an audio hobbyist since early teens, and also started out in high ... A little understood field of science I believe, ...
    (rec.audio.opinion)
  • Re: the cold hard facts about mp3 sound quality
    ... Apple has gone so far as to say that this results ?in audio ... So what exactly is a bitrate? ... that more sonic information can be used to recreate the sound. ... The degradation of CD quality into something even ...
    (rec.music.dylan)