Hi, does someone know what could be wrong with this boombox ? It started to make all these weird sound a couple of months ago, I opened the case and saw that only touching the PCB board with my fingers the sound change.
Sanyo M W770 squealing
- Thread starter SkyTrax26
- Start date
I don't know if the video was uploaded but here's a link to my Google Drive shared folder
goodman
Member (SA)
Wow, that sound is terrible... I've never heard anything like it from a boombox before.
I'm guessing some electronic component is defective. It could be a capacitor, a diode, a resistor...
Without a wiring diagram, it's hard to guess. I looked online, but I couldn't find a service manual.
I would advise you to look for a service center in your city.
I'm guessing some electronic component is defective. It could be a capacitor, a diode, a resistor...
Without a wiring diagram, it's hard to guess. I looked online, but I couldn't find a service manual.
I would advise you to look for a service center in your city.
Lol, You don't have to be sorry at all, I had a good laugh, too. It sounded like an old sawtooth synth wit some retro sci fi sound effects.
Here's the first video that I made just before the other, it's funny. What happened is only that I had put a liberal amount of contact cleaner and my fingers were also wet because I was cleaning it, so when you touch the solders points it makes a sort, de-short, another short and so on, I let it dry all the night and now it works normally. At the beginning it was only a kind of hum or very high pitch squeal but never like this on the videos.
goodman
Member (SA)
I recommend that you avoid touching the printed circuit boards with wet hands in the future.
You can cause a short circuit and damage.
In extreme cases, if you touch high voltage, it can be dangerous for you too. Be careful!
I'm glad you got away with it in this case.
The boombox seems to be in excellent condition and it would be a shame if it gets damaged by carelessness.
You can cause a short circuit and damage.
In extreme cases, if you touch high voltage, it can be dangerous for you too. Be careful!
I'm glad you got away with it in this case.
The boombox seems to be in excellent condition and it would be a shame if it gets damaged by carelessness.