I am using onkyo HTIB HT-S570 receiver since last four years. Lately the memory preservation power backup of receiver HT-R320 is not working properly due to which radio tunning memory gets lost every time I switch off the mains power and I have to re-tune all the broadcast stations. I use the system daily for about 2 hours. Pl help.
How change battery and the battery model
There is a special memory chip who keps thre config. The older models has a battery who power memory offline, and that battery has 5 years life, and needs to be replaced. or new models has a eeprom who keeps data above 10years, normaly some chips has small defects who reveal after 4 or 8 years, normaly also needs to be replaced.
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According to the user manual batteries are not used for memory preservation hence battery replacement is ruled out.
My observation is that if I switch OFF the set and switch ON again after 5 or 10 minutes, the memory preservation works. However if I delay switching ON beyond about 10-15 minutes, memory is lost. Any possibility that some elecrolytic capacitor has gone bad and need replacement...
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