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Forum: Troubleshooting Printers, Copiers, Scanners and other Imaging & Printing Devices 08-04-2019, 01:31 PM
Replies: 9
Views: 5,236
Posted By Jluxster
Re: Lexmark 654dn power supply dead fans on part # 40x4355

Here are the images after repair.
Thanks for all the posts.
Forum: Troubleshooting Printers, Copiers, Scanners and other Imaging & Printing Devices 08-04-2019, 01:29 PM
Replies: 9
Views: 5,236
Posted By Jluxster
Re: Lexmark 654dn power supply dead fans on part # 40x4355

Well, last night I replaced the bulged cap and the two large caps, and the unit now functions with no problems. Startup and post.

Good prediction in naming the small cap as the likely culprit.
Forum: Troubleshooting Printers, Copiers, Scanners and other Imaging & Printing Devices 08-02-2019, 08:03 PM
Replies: 9
Views: 5,236
Posted By Jluxster
Re: Lexmark 654dn power supply dead fans on part # 40x4355

Hmmm, OK, this board has a ton of 35V and 50V caps on it. Perhaps one of them is the culprit.
Forum: Troubleshooting Printers, Copiers, Scanners and other Imaging & Printing Devices 08-02-2019, 03:21 PM
Replies: 9
Views: 5,236
Posted By Jluxster
Lexmark 654dn power supply dead fans on part # 40x4355

Hey all,
Working on another failed Lexmark LVPS power supply. The printer gradually had more and more trouble making it to the post screen until finally no power on at all. I'm replacing the two...
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