Question about Yamaha RX-V550 Receiver
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Posted on Jan 02, 2017
SOURCE: yamaha receiver model rx-v550
it is your protection circuit working, preventing the unit from any further damage to circuitry. you can check first your speaker cabling for any short connections, possibly red/black terminal wires got entangled. if all ok then try removing all speakers then turn on the amp. if still does the same thing turning off then you have a problem with the amp output stage, shorted power output transistrs/driver probably. if the unit turns on normal without the speakers then you must have one or both of your speakers busted. by the way this amp is multi channel, after removing ALL the speakers connected, and does not turn off anymore, put the speakers back one by one and observe if the unit with turn off and on which set of speakers. otherwise if still trips even without the speakers, it is your amplifier that is deffeective, any of the five channels, main, rear,center. let me know result so i can guide you on how you can get it repaired and what will be the extent of damage in case.
Posted on May 22, 2008
If you can desolder the audio amplifier IC to check the device turn on,If the device turn on with the audio amplifier IC desoldered you need to change him.
Posted on Jun 12, 2009
Hell Fixya customer,
Here are two links for the Yamaha receiver, and the Sony user manuals.
Please look through them concerning your specific hookup. If you still have questions or need help, please let me know.
Thank you for using Fixya
Posted on May 01, 2010
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