elnaldo
Lunatic Member
Hello. I'm fixing an AKAI GX-600DB, that is labeled "220V", but I see the circuit match the 110V version, with addition of a 220 to 110 step down autotransformer inside the cabinet.
In the service manual, there is a 50-60 Hz switch, which changes some circuits, specially adds capacitance to the AC motors. My unit doesn't have that, and the capacitors match the 60Hz version.
I'm running the machine now at 50 Hz, not 60, and I measure a 83-84% of the rated speed, what match the difference between 50 and 60 Hz. My guess is that is normal , and I'll leave it alone since converting the unit seems too complicated.
My question: Should I add capacitance to the AC motors? The capstan motor is labeled 50/60Hz - 3uF/2uF. And the manual also shows, when switched to 50Hz, the motor connects another capacitor in parallel. I've tried with alligator clips, and the speed stays the same with 2, 3 uF even with 4uF.
In the service manual, there is a 50-60 Hz switch, which changes some circuits, specially adds capacitance to the AC motors. My unit doesn't have that, and the capacitors match the 60Hz version.
I'm running the machine now at 50 Hz, not 60, and I measure a 83-84% of the rated speed, what match the difference between 50 and 60 Hz. My guess is that is normal , and I'll leave it alone since converting the unit seems too complicated.
My question: Should I add capacitance to the AC motors? The capstan motor is labeled 50/60Hz - 3uF/2uF. And the manual also shows, when switched to 50Hz, the motor connects another capacitor in parallel. I've tried with alligator clips, and the speed stays the same with 2, 3 uF even with 4uF.