20 Most Recent Panasonic Technics Sl-1210 Mk2 Turntable black Sl1200 Proaudiostar - Page 9 Questions & Answers

go to Panasonic web page , find your model voice recorder , find a download compatible with your win operating system and down load

Bad news the main power amp has failed. The good news is that the service manual is online and it's free. You will need to read the manual and find IC500, which it says is an RSN3502C. Panasonic SA AK22 Service Manual Page 126

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There are adapters for this on eBay

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The Panasonic website would be the place to look and ask them if you can't see them. If they are no longer made they should suggest a suitable replacement.

There are numbers of possibilities that can make your Panasonic stereo system indicates an F61 error code. Almost 100%, the system may not be able to recover from that error code, thus, it is advisable to bring your stereo system to your nearest Panasonic repair center.
By the way, May I know the model number? ...

Because it has a clock built into it, you are not meant to turn it off completely. However if you wish to do so then you must switch it off at the mains or remove the plug from the socket. Doing so will probably loose the time settings though. As I suspect it has no back up supply for them. So if you want to use the clock again it will have to be set.