Question about Marantz SR-680
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Posted on Jan 02, 2017
SOURCE: One speaker channel is crackly.
There is Definately a Short in the Amp if tapping Fixes it. Could try opening the amp and Inspecting the Back side of the Terminals. You can use a Voltometer and check the Wiring inside. Turn off Power Before doing this!
Posted on Jan 01, 2009
SOURCE: no audio output - Marantz 2238
This can be as simple as a poor connection somwhere in the voltage regulator circuit or a defective driver transistor or output transistor. In any case, this is a simple repair for any shop that works on vintage receivers. If it is the outputs, that will be the most expensive repair from a parts perspective. The outputs will cost in the $5-$10 range for each one and it could be 2-4 pieces. If you wish to attempt this repair yourself, you will need a multimeter that has a diode checker. Let me know and I'll provide additional details and instructions.
Posted on Apr 06, 2009
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