#151

[@TheDefpom]

Nice work tracking that fault down, and well explained.

[@davidv1289]

Excellent work! I always enjoy watching you work through a problem. Thank you for sharing this video with us. Regards, David

[@fichambawelby2632]

Nice to see you here again.

[@Ogma3bandcamp]

Very satisfying and enjoyable.

[@amirb715]

excellent repair as always.

[@adrianstoica17]

Nice repair. Thank you for sharing

[@worroSfOretsevraH]

I repaired an older PC motherboard which was absolutely dead. Turned out to be the 32KHz crystal defective which was responsible for the standby stuff of the southbridge.

[@RyanUptonInnovator]

Really good video.

[@MrDubje]

Excellent repair video once again!

[@PeterCut62]

Awesome. Nice job as always. Cheers from Belgium ;)

[@thomasguilder9288]

Wow blasting 5 volts ac into the crystal seems like a quite hard drive… doing the same circuit years ago the crystal manufacturer suggested a couple hundred millivolt absolute maximum…

[@feedback-loop]

Well, saying "5 volts AC" is a bit misleading. This is about 1.8 AC RMS

How would you track that fault if you only had a multimeter like we normal people?? :) Could you?

[@feedback-loop]

Well, in this case it turned out that an oscilloscope would do, but it is hard to investigate if you cannot see much.

[@Arnthorg]

I think you can measure the voltage of a 32khz sine wave with some hand held multimeters, agilent 1251A seems to be specced up to 30kHz so I think that would be adequate to see this significant difference in amplitude before and after the crystal

[@feedback-loop]

@@Arnthorg Maybe. After the fact, when you know the answer, you can optimize the steps. But how do you know beforehand? I would say that oscilloscope should be included into a basic electronics toolkit. They are quite affordable these days.

[@Arnthorg]

​@@feedback-loopyes I agree. I was under the impression that behcet was asking how to check for this specific fault with minimal tools just in case he encountered one of those receivers.

[@MerlinMerlinL]

clear! thanks for sharing

[@tienthang7467]

Dear Sir, i have the receiver model svx288. It has the problem with channel A, the radio signal in the receiver is not stable, it’s continously switching between A and B signal. The output sound is also unstable and sometimes mutes. Could you advise how to fix it? Thank you so much for reading my comment!

[@youpattube1]

very good.

[@nevillebobeck4279]

Promo'SM ❣️

[@jdmccorful]

Good one! Thanks for the looksee.