skidmarks70
New Member
Hey folks,
I started working on my CR-420 again. I actually pulled a couple capacitors in the power supply to try and test them and then realized that my meter wouldn't work on the big ones. Duh.
Anyways, I put them back in (with the correct polarity) and did some more cleaning. Powered up and sounded surprisingly good. For about 5 minutes. Then pop went a fuse. One of the capacitors that I put back died and was blazing hot. So I'm hoping that nothing was damaged and I've started to re-cap the whole power supply.
The interesting thing and what I'm here to ask about is the capacitor that went pop seems to be completely wrong. I pulled it back out and it's 3300 uF, 25V Elna, but the schematic indicates it should be 470 uF, 50V. The capacitor is C511 on the schematic and if I'm reading things right it was completely the wrong capacitor that was in there.
So what should I believe? The schematic or the capacitor that was there? I picked this up at the thrift shop, so I don't know the history.
I started working on my CR-420 again. I actually pulled a couple capacitors in the power supply to try and test them and then realized that my meter wouldn't work on the big ones. Duh.
Anyways, I put them back in (with the correct polarity) and did some more cleaning. Powered up and sounded surprisingly good. For about 5 minutes. Then pop went a fuse. One of the capacitors that I put back died and was blazing hot. So I'm hoping that nothing was damaged and I've started to re-cap the whole power supply.
The interesting thing and what I'm here to ask about is the capacitor that went pop seems to be completely wrong. I pulled it back out and it's 3300 uF, 25V Elna, but the schematic indicates it should be 470 uF, 50V. The capacitor is C511 on the schematic and if I'm reading things right it was completely the wrong capacitor that was in there.
So what should I believe? The schematic or the capacitor that was there? I picked this up at the thrift shop, so I don't know the history.