@imhififan From what I could see so far I think J2, J3 and J6 will have to be removed and J4/J5 set for start to end connection of the secondary windings. J1 should bridge both windings for series connection, what do you think?
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Actually I have to correct myself. After looking at the traces on the solder side I currently think J1 needs to be set along with either J5 or J6 (one of those should be for 220V the other 240V). Would that make sense? Here’s another shot of the PCB: https://ibb.co/8gyrD2dM As for the auxiliary transformer. It should be on the two photos above. I’ll have to take apart the side panel to access it completely, however on first glance I did not see any jumpers or other means for switching voltage settings. |
Thank you for the photos. Here are my findings: 100V setting = J2, J3, J6 120V setting = J1, J4, J6 220V setting = J3, J5 240V setting = J4, J5 Regarding the auxiliary transformer: if the unit is configured for 220V/240V, you must replace the transformer with one rated for 220V/240V. If configured for 120V, you may connect a fusible resistor in series with the primary winding of the auxiliary transformer to step the voltage down to 100V. Best regards,
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@imhififan Thank you so much for the illustration, of course that makes more sense setting J4/J5. I really appreciate your help. https://ibb.co/YFDdRBj9 |
- 18 posts total