I recently bought a 644 that came without a power supply. i bought one of those ps-m1 clones and plugged it in but nothing really happened. the led's seems to be working but I get no sound and nothing on the lcd's. i get power from the power supply and the main switch is working properly. i removed the battery but it didn´t make anything better. i probably need to check a voltage regulator or something but I don´t know where to start.
644 wont power up
- Thread starter jlillhannus
- Start date
