Lookinf for volume pot for Marantz 1150
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Those listed at that site are aftermarket pots that people have bought only to find they're garbage.
I would never buy anything from Hifiaudio.
https://audiokarma.org/forums/index.php?threads/can-anyone-tell-me-about-hifiaudio.1032226/page-2
I would never buy anything from Hifiaudio.
https://audiokarma.org/forums/index.php?threads/can-anyone-tell-me-about-hifiaudio.1032226/page-2
What’s wrong with yours?
Have you 100% determined that it is the volume control that is the problem and not the speaker protection relay? You can try connecting the Pre-out L to Main In R, and Pre-out R to Main In L and see if the problem changes to the left side. If it stays on the right, then it is not the volume control.
Typically, when a channel "cuts-out" it is because the relay contacts are either oxidized or burnt. Usually it occurs at the lower volume levels.
The other thing to check is to see if that same happens on all inputs (phono, aux, tape, FM, AM, etc.).
One more thing to check... connect your cd (or whatever) to the tape 1 input and select tape 1 on the tape monitor switch. This will bypass the push button controls for source selection.
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I was originally convinced that it was the relay and I replaced it with a new one a couple months ago. Problem remained.
Yep, problem occurs on all inputs.
My Marantz CD player runs to the tape 1 input source and I experience the same issue there also.
As a further note, when the right channel cuts out I can turn the volume control up, WAY UP, jiggle a bit, and the channel cuts back in. It won't last forever, but that will get it going again for another burst.
Yep, problem occurs on all inputs.
My Marantz CD player runs to the tape 1 input source and I experience the same issue there also.
As a further note, when the right channel cuts out I can turn the volume control up, WAY UP, jiggle a bit, and the channel cuts back in. It won't last forever, but that will get it going again for another burst.
I have not pulled the volume pot from the amplifier. It is really squeezed in and is not going to be easy to access.
Let me ask this: I am told that the Marantz 1150 amplifier that I have is similar to the Marantz 2275 receiver from the standpoint that uses the same amplifier board. Each is 75 wpc. Some people have described the 1150 as being the same, more or less, as the 2275 minus the tuner. Other than differences that may or may not present in their physical dimensions, what is the likelihood that the volume pot from a Marantz 2275 (pn RM0254022) could be used in my 1150? Both are 250k
I have blindly purchased a used pot and am hoping that it will work in my amplifier. Perhaps you have seen its picture online. If not, here it is. Pulled from a Marantz 2050, it is 250k(b)x2 as is mine. It is also the same pot, from what I understand, as was used in the 2275.
Let me ask this: I am told that the Marantz 1150 amplifier that I have is similar to the Marantz 2275 receiver from the standpoint that uses the same amplifier board. Each is 75 wpc. Some people have described the 1150 as being the same, more or less, as the 2275 minus the tuner. Other than differences that may or may not present in their physical dimensions, what is the likelihood that the volume pot from a Marantz 2275 (pn RM0254022) could be used in my 1150? Both are 250k
I have blindly purchased a used pot and am hoping that it will work in my amplifier. Perhaps you have seen its picture online. If not, here it is. Pulled from a Marantz 2050, it is 250k(b)x2 as is mine. It is also the same pot, from what I understand, as was used in the 2275.
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Looking like I might have bought that pot for nothing. I was reading through some of the many posts on AK about Marantz volume pots and came upon this wise nugget of advice:
Connect the Pre Out jacks to the Main In jacks using a pair of RCA cables. If that 'fixes' the problem then give the jacks a short spray of contact cleaner, work the RCA plugs in and out a few times, then run it without the cable to see if it is fixed. There are switches inside on the jacks that connect the Pre Out to the Main In when nothing is plugged in to the jacks, and those switches get corroded.
The suggestion was made ten years ago by runningdog. I followed his advice and have been able to listen to three albums with no problem at all. I'm not 100% convinced yet, because I have sometimes been able to go hours with no problem before it came back. Still, I am optimistic and will report back as things progress.
Connect the Pre Out jacks to the Main In jacks using a pair of RCA cables. If that 'fixes' the problem then give the jacks a short spray of contact cleaner, work the RCA plugs in and out a few times, then run it without the cable to see if it is fixed. There are switches inside on the jacks that connect the Pre Out to the Main In when nothing is plugged in to the jacks, and those switches get corroded.
The suggestion was made ten years ago by runningdog. I followed his advice and have been able to listen to three albums with no problem at all. I'm not 100% convinced yet, because I have sometimes been able to go hours with no problem before it came back. Still, I am optimistic and will report back as things progress.
I am now three days into flawless performance after following the suggestion in this post:
Prior to this, I had repeatedly cleaned every pot and every switch on the front of this amplifier. It did not occur to me that a jack on the rear could cause this problem. Thanks for the help!
Marantz 2235 Channel Cutting Out
Sorry for posting this, but I searched previous posts and found multiple, conflicting answers. My 2235 cuts out of one channel. It comes back when I isolate the bad channel and turn the volume up...but then reverts to cutting out again. I've cleaned the volume pot, balance pot, and the relay...
audiokarma.org
Prior to this, I had repeatedly cleaned every pot and every switch on the front of this amplifier. It did not occur to me that a jack on the rear could cause this problem. Thanks for the help!
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