How to fix protect mode on SONY STR K SERIES? Basic trouble shooting for newbies.

[@omarabdurajack5990]

hi sir, san po shop mo. where is your shop located have e sony str- p502k no power po.

[@ARTaudio440]

Hi, thanks for watching. Naka base po ako sa Doha Qatar

[@MrSilv55]

Hi Allan Thanks for the video , i have an old Sony receiver str k850 that won't memorize preset radio stations no more, i have to manually put in frequency in order to tune in station ,but if i try to set up another frequency it looses the first one and so on, this might be old caps, what you guys experts on radios think i should look for, thanks

[@ARTaudio440]

Hi, thanks for watching🙏☺️ I will check on this and get back to you. Some of the units have a super capacitor located at the pcb board or panel board.

[@MrSilv55]

Thanks mate ,i have another older STR 335 that does same thing maybe this one has the Momo cap,;the Str K850 memo is stored in the EEprom

[@parerasalu677]

Good job

[@ARTaudio440]

Thank you for watching ☺️

[@jacekkregiel4935]

Dobra robota

[@ARTaudio440]

Thank you for watching ☺️

[@euclidesortiz7766]

Hello Allan. good job. I have sony str-de845. But to pusch burn 2 fuses. But is turns on and is no audio. Change the 2 fuses and do the same again. The fuses are near a relay and do not activate for audio. Thanks for video 👍👍👍👐👏👏

[@ARTaudio440]

Hi, thanks for watching☺️ Reasons to blow the fuse are Big capacitor maybe gets leaked Output transistors get shorted Power transformer coil hass shorts Overload speakers Underated fuse