I am trying to fix a 200ASC module from my friends B&W as610 sub woofer. TVS was blown and also 2 mosfets. Replaced the TVS with SMBJ48A and mosfets with STD26NF10. 20millohm resistor was also blown and replaced. 1000uF caps were also replaced as they were bulging. 47V volts looks fine. Also +/-12V. Sleep voltage also present. But on startup it always goes into protect with Red and Green leds illuminated. Next replaced both L6387. No change.
Anyone got any clues on how to track down the cause of protect mode? I have been pouring over the reconstructed schematics (bang-olufsen_icepower-200ac_sch.pdf) but they seem to be for the 200AC and there are differences.
Anyone got any clues on how to track down the cause of protect mode? I have been pouring over the reconstructed schematics (bang-olufsen_icepower-200ac_sch.pdf) but they seem to be for the 200AC and there are differences.
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