Hi guys, 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
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how to repair sony str k850 won't memorize radio stations no more
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Re: how to repair sony str k850 won't memorize radio stations no more
Originally posted by stj View Postopen it - see whats inside.
it probably has a (leaked) battery or capacitor to maintain the memory
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Re: how to repair sony str k850 won't memorize radio stations no more
I looked at the service manual and could not see any memory backup (ie large cap) I suspect the data is stored in eeprom, make sure you are saving the station according to the manual, or you could also try a reset to clear any data that is already stored (procedure is in the owners manual)
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Re: how to repair sony str k850 won't memorize radio stations no more
Originally posted by R_J View PostI looked at the service manual and could not see any memory backup (ie large cap) I suspect the data is stored in eeprom, make sure you are saving the station according to the manual, or you could also try a reset to clear any data that is already stored (procedure is in the owners manual)Last edited by ivtec; 11-08-2021, 02:35 PM.
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