Well my mrd-m300 repair went crazy tonight. I waited a week for the replacement irf5305 fets only to have them fry and take out the TDA7571 chip or vice versa.
I had this amp working with IRF9540 in place of the 5305's for a temperory test. Replaced with original parts and the output would start off looking good then get all distorted. I didn't have the screws holding the pcboard in place when it partially worked. Those screws tie the pcboard to the heatsink. Put the screw in, then everything went up in a pop!!
Should I look for the IC, prelim searches show no stock anywhere.
Any thoughts???
I had this amp working with IRF9540 in place of the 5305's for a temperory test. Replaced with original parts and the output would start off looking good then get all distorted. I didn't have the screws holding the pcboard in place when it partially worked. Those screws tie the pcboard to the heatsink. Put the screw in, then everything went up in a pop!!
Should I look for the IC, prelim searches show no stock anywhere.
Any thoughts???
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