Solid State Sinema Marshall model 5210 guitar amp circuit board repair noise squeal and Test

Yep, Solid State Sinema is back! This time I tackle a Circus board based Marshall guitar amp. Came in with complaint of low volume, noise, squeals. The typical thing you'd expect from a PCB design. Yes, I found a few bad solder joints, plus the input Cliff jack was damaged. I had the assistance from CapCat (Oli). He's always on the prowl, stealing items from my work bench! Great to have the cats here keeping me company. The Marshall repair was successful, however like all PCB designs, the bad connections will return. I hope you enjoyed this fine production of SSS! For more on my shop operation, see d-labelectronics.com or / dlab_electronics