Did RF PBR300x2 fry my HK head unit?
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Joined: Jan 2011
Posts: 55
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From: North Dakota
Did RF PBR300x2 fry my HK head unit?
I've got MM651's in the fairing and a PBR300x2 and its worked flawlessly for almost 6000 miles on my 2013 ultra. On saturday I started the bike and had no sound out of my front or rear speakers. My amp is hooked to the MM651 speakers in the fairing only. Troubleshooting tonight I learned these things:
Power to amp is good but nothing lit up on amp when stereo on.
Ran a jumper wire to the remote input on amp, then the amp lights up.
Unhooked the amp and wired the head unit to one of the MM651 speakers directly and still no sound, front or rear. I do have sound through my helmet headset.
Ran the DTC and here's the codes:
b2022
b2021
b2020
b2017
b2023
Is my head unit fried? If so can the PBR300x2 cause it? Will the factory warranty cover it even though I installed aftermarket speakers and amp?
I appreciate the help and thanks in advance!!
Power to amp is good but nothing lit up on amp when stereo on.
Ran a jumper wire to the remote input on amp, then the amp lights up.
Unhooked the amp and wired the head unit to one of the MM651 speakers directly and still no sound, front or rear. I do have sound through my helmet headset.
Ran the DTC and here's the codes:
b2022
b2021
b2020
b2017
b2023
Is my head unit fried? If so can the PBR300x2 cause it? Will the factory warranty cover it even though I installed aftermarket speakers and amp?
I appreciate the help and thanks in advance!!
Extreme HDF Member
Joined: Nov 2007
Posts: 14,670
Likes: 139
From: East of the Sun, West of the Moon
I've got MM651's in the fairing and a PBR300x2 and its worked flawlessly for almost 6000 miles on my 2013 ultra. On saturday I started the bike and had no sound out of my front or rear speakers. My amp is hooked to the MM651 speakers in the fairing only. Troubleshooting tonight I learned these things:
Power to amp is good but nothing lit up on amp when stereo on.
Ran a jumper wire to the remote input on amp, then the amp lights up.
Unhooked the amp and wired the head unit to one of the MM651 speakers directly and still no sound, front or rear. I do have sound through my helmet headset.
Ran the DTC and here's the codes:
b2022
b2021
b2020
b2017
b2023
Is my head unit fried? If so can the PBR300x2 cause it? Will the factory warranty cover it even though I installed aftermarket speakers and amp?
I appreciate the help and thanks in advance!!
Power to amp is good but nothing lit up on amp when stereo on.
Ran a jumper wire to the remote input on amp, then the amp lights up.
Unhooked the amp and wired the head unit to one of the MM651 speakers directly and still no sound, front or rear. I do have sound through my helmet headset.
Ran the DTC and here's the codes:
b2022
b2021
b2020
b2017
b2023
Is my head unit fried? If so can the PBR300x2 cause it? Will the factory warranty cover it even though I installed aftermarket speakers and amp?
I appreciate the help and thanks in advance!!
all of the above codes reference the speakers and are to be expected when you have an amp in the system. the head unit is looking directly for a speaker/load but instead it's finding no speaker because the amp is inline.
Extreme HDF Member
Joined: Nov 2007
Posts: 14,670
Likes: 139
From: East of the Sun, West of the Moon
I would then do as floridaypoolboy suggests and go back to the dealer with it without the amp installed.
There is no way the inputs for the amp caused this. You simply have a bad head unit.
There is no way the inputs for the amp caused this. You simply have a bad head unit.
Former Sponsor
Joined: Apr 2009
Posts: 618
Likes: 9
As far as the amp causing it, we see this once a month with the RF amp.
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Extreme HDF Member
Joined: Nov 2007
Posts: 14,670
Likes: 139
From: East of the Sun, West of the Moon
any idea what would cause an amp to feed back into the audio outputs and toast a head unit? This is certainly a first for me...
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Former Sponsor
Joined: Apr 2009
Posts: 618
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At first we thought it was an improper install, but we had a repeat customer who we were pretty confident with that had an immediate repeat failure after a repair.
Something is shorting, but we've not had the opportunity to get our hands on one of the alleged bad amps
Extreme HDF Member
Joined: Nov 2007
Posts: 14,670
Likes: 139
From: East of the Sun, West of the Moon
just out of curiosity Tony, was it a PBR300x2 or a PBR300x4? The latter I could understand with the severe heat issues RF had with them initially so it may be an older amp.