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electronic repair

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    Marantz C-CR603 repair

    Hello, Since my marantz M-CR603 will not power on, I've decided to repair it. From the main Switch Mode Power Supply board, no voltage is going out. Especially, a +6V is constantly supposed to go to the CPU for powering on by a push button. I've investigated the transformer responsible for...
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    Repairing Akai AM2450 - transistor 2sa965 / 2sc2235 replacements

    Hello all, I have an AKAI 2450 amplifier which I am trying to repair. One of then channel is randomly noisy and throw sound bursts. Measuring different points, I've isolated that one transistor has gone bad : TR6, a 2SA965 It is part of a complementary pair : TR6/TR5, 2SA965/2SC2235 I've...
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