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Help needed... 2:Ninety Hum+Crackling sound
It's fixed :D One 12AX7 caused a short circuit between the motherboard and the filaments. The effect went through the switching circuit (the transistors that controls the DEEP, 1/2 Drive and MODERN modes). The tech changed the faulty components, and tested the whole thing. Now runs flawless...- Fl7x
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- Forum: Rack Pieces
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Help needed... 2:Ninety Hum+Crackling sound
Hi guys... I have a weird problem with my Mesa 2:90 Version 1 (Blue Pilot). It does a loud hum and intermintent crackling sound once I turn the Stand-By OFF no matter I turn the volume full up or completely off, well, the hum changes slightly but no one (the hum or the crackling) desappear...- Fl7x
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- Replies: 4
- Forum: Rack Pieces