OP-1 No Signal Left Channel + Deafening Pops and Clicks

I’ve had my OP-1 for about 5 years now and its served me very well this whole time. I love it.

However, recently a problem came up where, while using the 1/8" output, the left channel does not work, and deafening pops and clicks – they really hurt the ear-- come out from mostly the left channel, though you can hear them a little bit in the right. This popping problem only occurs in tape machine mode during playback, but the left channel does not work no matter what in any mode. Has anyone else had this problem? How can I fix it?

turn off PO sync

https://www.teenageengineering.com/guides/op-1/tempo#10.7

@pselodux got U. Orange you glad the solution was so simple

Fixed! thank you so much! I feel silly now