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Home / 2023 / October

Month: October 2023

Posted on October 31, 2023October 31, 2023 by Provo Electronics

Case 4375644. Marantz 250 amp. No sound after 5-10 minutes.

After closer look found oxidation on protection relay contacts. Cleaning doesn’t help for long run. Relay replacement solved the problem permanently.

Used this relay

Category: Blog
Tag: Case 4375644. Marantz 250 amp. No sound after 5-10 minutes.

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