Welcome, Guest. Please login or register.
Did you miss your activation email?

January 20, 2020, 07:06:04 PM

Login with username, password and session length

Recent Posts

Author Topic: Noisy EFF board from a Roland JC-120G  (Read 723 times)

Phil_Pop

  • Chipper
  • *
  • Posts: 1
  • Chip Points: 0
    • View Profile
Noisy EFF board from a Roland JC-120G
« on: April 08, 2019, 09:25:11 PM »
I friend sent me a Roland JC-120G with only one working channel, I fixed the bad channel "just a blown fuse" I also notice
what sounds like an AM radio coming from the speakers when the EFF Board is installed in the amp.

Does any one have a schematic for the EFF board? the AMP serial number is Z9G1267.

Looks like the EFF board's number is E74366.



joecool85

  • SSGuitar Admin
  • Legendary
  • ******
  • Posts: 3176
  • Chip Points: 985
  • SSG Creator
    • View Profile
    • thatraymond.com
Re: Noisy EFF board from a Roland JC-120G
« Reply #1 on: April 16, 2019, 01:58:30 PM »
Sounds like the effects board is picking up and amplifying stray RF signals.  Is the board properly grounded?
Life is what you make it.
Still rockin' the Dean Markley K-20X
"New" amp: Fender Frontman 25 DSP (FM25DSP)
thatraymond.com