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RE: Rec for power capacitors replacement

Posted by djk (M) on June 3, 2012 at 13:22:35

In Reply to: Rec for power capacitors replacement posted by Quad2905 on June 3, 2012 at 05:03:38:

No, anything over 30,000µF will blow the rectifier.

Changing the bridges to fast types will require inrush current limiting to be needed.

Change the input coupling cap, the cap in the feedback loop to ground, add film bypass caps across same, and change the 10µF bypass caps (two per driver board) to 22F/160V.

Unsolder all transistors with gold leads and re-solder with 4% silver, you must wick off all gold-contaminated solder.

The gold pins in the edge connectors must also be wicked and re-soldered.

Clean input jacks and all Molex connectors with Caig DeOxit.

Consider cleaning the relay with same and soldering a 0.1µF film cap across it (before cleaning it, Caig is damaged by soldering heat).

Edits: 06/03/12

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