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Old 05-28-2019, 09:27 AM   #1
Octoberon
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Join Date: May 2019
City & State: Farnham
My Country: United Kingdom
Line Voltage: 230VAC 50Hz
I'm a: Professional Tech
Posts: 3
Lightbulb DELL 2405FPW - Dead - Fixed

I hope this may help somebody. I had a 2405FPW that was in a bad way.

Usual failure mode: Open circuit C605. Cascade failure ensues.

It is working now. There was some parts that were definitely bad, and some parts that tested OK. There were some parts that I just did not feel comfortable proceeding without replacing them.

Note: the attached circuit diagram is for a 2407. That said, the similarities between the 2405 and 2407 PSUs are very handy. Check my comments in the PDF to see what I found.

Good luck, these PSUs generally will work again with a little love.

Jon
Attached Files
File Type: pdf PSU - Belt & Braces.pdf (202.0 KB, 39 views)
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