Anyone have any suggestions as to why the aux input bleeds over into all the other selections? I am in the process of trouble shooting and so far it is pass the selector switch. The switch is shorting the aux input to ground when not selected so i dont understand whats causing the bleedover. Thanks
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Marantz 2275 bleed over
- Thread starter Foamman75
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jblmar
JBL & marantz
Welcome to AK.
Try cleaning the switches. Oxide build up will cause this problem.
The switches Marantz used weren' the greatest Alps switches. Some of Marantz's competition used grounded switching, killing off any signal that was present leaving only the selected input to pass a signal.
If cleaning doesn't work, you can connect a disc capacitor and resistor to form a signal killer for the unused inputs.
Try cleaning first.
Try cleaning the switches. Oxide build up will cause this problem.
The switches Marantz used weren' the greatest Alps switches. Some of Marantz's competition used grounded switching, killing off any signal that was present leaving only the selected input to pass a signal.
If cleaning doesn't work, you can connect a disc capacitor and resistor to form a signal killer for the unused inputs.
Try cleaning first.
Thanks for the suggestion, I have cleaned the switch. The switch does throw the unused inputs to ground. If the switch is bypassed it still bleeds over. I think I may have a grounding issue somewhere. I've got a bigger problem now though. I bumped something and smoked the power supply. Now I'm looking for the sd331 transistor to replace the one I burned up.
Quadrocker
Active Member
My Marantz 4400 Quad Receiver and Marantz 4070 Quad Integrated both have some audible "bleed though".... 
....it bugs me too.....so when I took my 4070 in to get repaired about 4 years ago, I put the bleed through "problem" on a list of items for my repair guy to look at. According to him, there was nothing he could do to fix it..
..he said this was normal for these Marantz models.
Although I'm not automatically inclined to believe everything I'm told ...especially as the 4070 is packed solid, and would be a prick to pull apart and work on in detail, I purchased a 4400 a couple of years after the 4070 and it has the same bleed through issues....
The only way around it I've found, is to make sure nothing is turned on, on the other inputs....
....it bugs me too.....so when I took my 4070 in to get repaired about 4 years ago, I put the bleed through "problem" on a list of items for my repair guy to look at. According to him, there was nothing he could do to fix it..
..he said this was normal for these Marantz models. Although I'm not automatically inclined to believe everything I'm told ...especially as the 4070 is packed solid, and would be a prick to pull apart and work on in detail, I purchased a 4400 a couple of years after the 4070 and it has the same bleed through issues....
The only way around it I've found, is to make sure nothing is turned on, on the other inputs....
Well I was using my iphone to test and finally gave up, put everything back together and connected my dvr to the aux and no bleedover. I had it going through a preamp and then to the aux and still no bleedover. Hooked the iphone back up and bleedover. Oh well, I can live with that. Thanks everyone for your sugestions.