Purchased on eBay and upon arrival it was able to power on and the radio worked for a few minutes but power was really low and now not much registers on the battery meter and the power light is dim. Does this with ac power, dc power, and batteries. Maybe a capacitor or something fizzled out or something as I assume this unit hasn’t been powered on in years. I’m no electronics guru but I have used a solder iron before but that was something simple like a relay replacement. I was able to remove the pcb and spray electrical cleaner on the pots and switches but unsure of their effectiveness. I would be glad to take it to a bench tech but none can be found these days. I always wanted this particular boombox since I was 12 years old and I actually had a 5258 when I was a teenager and literally wore it out. Wish I would have kept it lol.