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Randall V2NH amp inop

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  • Randall V2NH amp inop

    Hello all, new guy with a problem Randall Amp. It's Ninja V2NH head. It worked intermittently for a few times but now when turned on there are no lights on front and when taken out of standby there is nothing. I found a schematic of a V2 T2 on the internet but I don't know for sure if it is the right schematic. On the schematic of the Mosfet Amp it shows 4 diode bridge modules db1-db4 but all I can find in this amps Mosfet board is db1. I could really use some help with this one as it is rather complex, like where to start. Anyone here have any experience with these amps?
    I have contacted Randall and asked for the schematic for this amp and have so far had no reply. Without a proper schematic it's going to be quite difficult troubleshooting this amp.
    All fuses are good.
    I did note that the Mosfet board was designed by B. Egnater.
    Last edited by jammo; 03-16-2017, 09:04 PM.

  • #2
    Ok I left it fully on (standby off) for about 30 minutes, and when I checked back all the front panel lights were on, all three channels selected. So I switched the power switch off and back on and then it was in the clean channel, green light on and then flashed all the lights on all three channels and then back to the clean channel. Once in a while when the clean channel light is on it will play through the speaker, then it will quit and all three channel lights come on. Also when this happens the equalizer lights come on, both of them. This is really strange and without a schematic , I'm afraid it's hopeless.

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    • #3
      called Randall Customer Service again -- transferred to a guy named Kevin's answering machine and left a message. Want schematic.

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