How to do if your amplifier cannot turn on?

Take fp20000q as an example, if the amplifier can not turn on, how to do a test to confirm the problem?

[@dryxmusicfiles2953]

Do you have a online sho

[@dryxmusicfiles2953]

Do you have online shop??

[@boykingboyking1969]

Wat power amplifier is good for a subwoofer RCF S-8028

[@DanGuo]

Hello friend, feel free contact me:
My facebook: facebook.com/Dan.SinbosenAudio
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