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Yamaha rxv-675 protection

Discussion in 'Troubleshooting and Repair' started by David Montgomery, May 5, 2015.

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  1. David Montgomery

    David Montgomery

    3
    0
    May 5, 2015
    The unit will power up in service mode when bypassing the protection circuits. The shut down is cause by low voltage on power supply 2. (Prt_ps2). Would anyone here be able to recommend a common failure component to look for? It appears to have been overdriven before I got it causing two output transistors to short. Thank you in advance for any and all help anyone here can provide.
     
  2. davenn

    davenn Moderator

    13,589
    1,872
    Sep 5, 2009
    hi David
    welcome to EP :)

    do you have any links to service info for it ? schematics etc ?

    Dave
     
  3. David Montgomery

    David Montgomery

    3
    0
    May 5, 2015
  4. David Montgomery

    David Montgomery

    3
    0
    May 5, 2015
    So I found a couple burnt output transistors And replaced them, but I'm still getting the ps2 low voltage situation. Can anyone point me in the best direction to start looking for component failure? I have verified that the power supply is functioning correctly.
     
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