SP 303 Not powering.

Hello, was recommended to ask on here about my SP303 not powering on. I have swapped the power input jack and still no power to the unit. Would it be worth it to continue attempting to repair the unit or just purchase a replacement?


It’s always worth it to attempt repairing! If you’re keen on doing it yourself the only way to know for sure what the problem is would be to use a multimeter/voltmeter and take some voltage measurements of the power supply.

The service manual for these is available by googling, have a look at the power supply schematic. You would need to measure the digital 3.3 V and 5 V, and the analog 8.5 and 5 V and make sure they’re the correct value. If anything is off then that is a hint to what component has failed.

If you have any questions feel free to ask, or if you don’t feel up to it there’s a list of service centers on our website.