Sony Audio Players & Recorders - Page 2 - Recent Questions, Troubleshooting & Support
I have a Sony STR-AV770 receiver that has stopped
your question depends on how good you are at electronic diagnosis (symptom diagnosis) and how adept you are at removing and installing electronc components. first you have to determine why the amplifier has stopped working on the left channel. Make sure that the problem isn't a simple one, take the speakers off the right side and hook them to the left side and see if you get sound. If you do,, then the problem is the left speaker or left speaker wire. If you don't get sound then tyr taking the input that feeds the right channel and pluggin it into the left channel and listen for sound, if you get sound now the problem was the signal from your source not being sent down the left side.
If it still doesn't work you need to move inside the amplfier, but first, get close to the back of the amp and give a sniff, do you smell anything (a pungent burnt wire or rubber smell) if you do, the the chances are good that some components have burned out. Do you recall having a shorted speaker wire on the left side? shorted speaker wires are notorious (especailly older equipment) for burning out the final amplifer stage. If this was an expensive amp it might be worth fixing, if its not worth much then maybe you should consider religating it to use as a monophonic amplifier (one channel) you could use it to power a sub woofer in a hibryd stereo or surround sound system.
I don't know what more I can tell you at this point. If you go through the steps I outlined, and want to tell me the result I shall be glad to respond and maybe give you another direction to head in. good luck and I'm glad you are adventruous enough to want to try.
Sony NWZ-A816 won't charge
I had the same problem my mp3 would not charge.To fix connect the mp3 to your computer with the usb cable, go to Device manger open up portable devices you should see a small yellow triangle (this is telling you some thing is wrong) right click over walkman and choose up date driver .windows will use hardware wizard on the net to fix the driver.This worked for me i hope it fixes your problem
STR-DB840 no sound in speakers
There are 4 blue relays in the unit that has solder points that will crack over time.
It´s fairly "easy" to re-solder them and viola, it´s OK again.
open the cover (unscrew and take of the hood) and locate the 4 blue relays.
Unscrew and remove the bottom service plate and locate the soldering points for the 4 relays.
Each relay has 6 solderings, 4 in one "groop" and 2 in one "groop" look especially at the "2-groop" these are the ones most likely to crack over time ( for me 12 years or so).
Re- solder. Best of luck //Ronnie Stockholm
Problem with FM reception.
Sony radios of this era had notorious capacitor problems.... also
several other brands were affected. These capacitors were underrated
and the technology to make them was not at it's best back then. The
cure is to replace the capacitors on the board with new electrolytics.
About 28 of them need to be replaced but the big problem is to find
someone to do this. the original capacitors are surface mount and must
be removed and new radial lead caps put in their place, some are rather
tough to get at and the new ones have to be placed carefully. My SONY
ICF-SW7600 now works as new and maybe even better!
I have done
this myself as I have skills working with surface mount capacitors. I
offer my services to those who cannot find service for their radios.
Please email me for details, I am not into making bucks on this, I just
want to see these radios kept working and bringing enjoyment to their
owners.
Good DXing Rod KB8DNS (copied and pasted)
My sony receiver is stuck in protect
I've had a Sony STR-DE725 for years, and it's always worked fine, until recently. When I turn it on, instantly, or within 1 minute - it will "click" and then display "PROTECTION".
Like any good DIY'er, I googled everything - so I looked for any loose speaker wires, and finding none - decided to open it up.
I pulled it out on my workbench, opened up the case, and blew out about an inch of dust from everywhere with an air compressor. Next I disconnected and reconnected every connection that I could easily reach. Finally, I unscrewed (about 1/4 turn) and re-tightened every single screw that I could reach in the guts of the receiver.
It works fine now! Go figure... probably the dust, or a loose connection somewhere. Definitely try this first, as you have nothing to lose but 30 minutes of your time on a weekend!
Volume knob of sony icf- sw 7600gr radio stuck on high volume. Cant be reduced
Recently I found a Sony ICF 7600GR with same issue.... Radio runs full volume.. can't be controlled... Found a SMD package capacitor C252 ,1uf was short.. 1.2Volt was missing on pin number 14 of IC 203
Check these voltages of IC 203 ( CXA1522P)
Pin -15 Voltage is 1.3V
Pin -14 voltage is 1.2V then" No/low Volume".
Pin -14 voltage is below 0.5 then "Full Volume ".
By varying volume control (RV204 , 50K) , Pin number 14 of IC 203 must vary between 0.3V to 1.2V.
10/14/2023 10:34:30 AM •
Sony Audio...
•
Answered
on Oct 14, 2023
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