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.
Meat Plow wrote in news: snipped-for-privacy@news.alt.net:
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.
Capacitors can exhibit that trait but I don't know about after a couple hours. If you had a scope and could identify the audio components you might get lucky. Otherwise a print might be in order if you're not familiar with the topography. Or you could tell pop-in-law to leave it on all the time whilst he shops for a replacement that he likes just as well :)
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