So, I have this old JBL Flip 2, it didn't turn on, that was an easy fix, however, it stopped producing audio, I hooked up the speakers directly to my headphone jack
JBL Flip 4 Main BoardのeBay公認海外通販|セカイモン
ORIGINAL!! JBL FLIP 3 PORTABLE SPEAKER SERIES MOTHERBOARD MAIN BOARD HM1623141MA | eBay
Main Board JBL XTREME 2 - GG
ORIGINAL!! JBL FLIP 4 PORTABLE SPEAKER MOTHERBOARD MAIN BOARD REPLACEMENT PARTS | eBay
Jbl Flip 5 Main Board Blown Component (Q10) Identification or Equivalent for Repair. : r/AskElectronics