Hello All,
I have a SHP3 amp, when either RCA plug ( Input ) is disconnected, both channels play still play. If I remove the mute relay the sound level drops but does not quit. I have checked for shorts in the wiring, shorts on the boards, checked the diodes. I believe the problem is in the preamp section. Can someone point me in the right direction?? Thanks Robert
Rob, Thats a new one on me... if the rca plugs from the cartridge (inputs) are disconnected, there is no way the amp can process a missing signal.
Rick
On Wed, Dec 3, 2025 at 10:45 AM ROBERT wilson via Jukebox-list < jukebox-list@lists.netlojix.com> wrote:
Hello All,
I have a SHP3 amp, when either RCA plug ( Input ) is disconnected, both channels play still play. If I remove the mute relay the sound level drops but does not quit. I have checked for shorts in the wiring, shorts on the boards, checked the diodes. I believe the problem is in the preamp section. Can someone point me in the right direction?? Thanks Robert _______________________________________________ Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
Somebody probably tied both channels together. You'll probably find that one of the channels is bad.
Paul Howlett Pinball Paul's
703-361-042
On Wed, Dec 3, 2025, 1:34 PM Jukebox Repairman via Jukebox-list < jukebox-list@lists.netlojix.com> wrote:
Rob, Thats a new one on me... if the rca plugs from the cartridge (inputs) are disconnected, there is no way the amp can process a missing signal.
Rick
On Wed, Dec 3, 2025 at 10:45 AM ROBERT wilson via Jukebox-list < jukebox-list@lists.netlojix.com> wrote:
Hello All,
I have a SHP3 amp, when either RCA plug ( Input ) is disconnected, both channels play still play. If I remove the mute relay the sound level
drops
but does not quit. I have checked for shorts in the wiring, shorts on the boards, checked
the
diodes. I believe the problem is in the preamp section. Can someone point me in the right direction?? Thanks Robert _______________________________________________ Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
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Jukebox Repairman -
Paul Howlett -
ROBERT wilson