Hello i have a Yamaha AX-595 integrated amplifier which needs the Potentiometer replaced.I have called yamaha and they told me they no longer carry parts for this unit because its to old.Does anyone here know where i might find this part or have one for sale for parts, Is there maybe another yamaha product that used the same part? I love this amp and would really like to get it repaired. Thanks.
Yamaha AX-595
- Thread starter Pat Baker
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Welcome to AK..Pat
Have you tried cleaning the old potentiometer?
Im afraid it needs more than cleaning,when you turn it you can feel that something is broke,even if i remove the volume knob i can not get it to turn and work.
It will turn but its real lose and bumpy feeling,when it turns nothing happens.
That doesn't sound to promising.Volume control. What ohms value is printed on it?What is the physical size? Split splined shaft or D-shaft?Length of shaft? Mounting hole diameter?
Yes it is to allow the remote to work. I could careless of replacing it with a motorized one as long as it would work.
200KΩ X 2 ?
And it is a D shaft. That's about all I can tell for now.
I
I'm not sure yet let me run upstairs and see if I can find out
200K X 4
Nevermind. That idea won't work with and ALPS.
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If you can't find a parts unit to canibalize then your best bet it going to be ro remove the poti and get a look inside.
The pot should be turnable by hand because there is a slip-ring on the shaft. If it's blocked by damage inside the poti contact area itself that might be fatal. But if the gearbox shaft has dropped out of position there might just be mechanical blockage that you can repair. In a worst case situation where the poti contacts are good but the gearbox/motor is fatally damaged you might be able to dismount the drive part of the assy and at least have a manual volume control.
Here are a couple of photos of the 2 types of motorized volume pots that I've seen so far.
This one is from an AX-750, with a side mounted motor. The gearbox is in front with this one.
Cheers,
James
The pot should be turnable by hand because there is a slip-ring on the shaft. If it's blocked by damage inside the poti contact area itself that might be fatal. But if the gearbox shaft has dropped out of position there might just be mechanical blockage that you can repair. In a worst case situation where the poti contacts are good but the gearbox/motor is fatally damaged you might be able to dismount the drive part of the assy and at least have a manual volume control.
Here are a couple of photos of the 2 types of motorized volume pots that I've seen so far.
This one is from an AX-750, with a side mounted motor. The gearbox is in front with this one.
Cheers,
James
And here are a couple of shots of one from a CX-600.
This one is probably more representative of your poti with the rear mounted motor. You can see that there is a cross shaft down in there that can drop out of position and jam up the works. The white plastic gear is the slip-ring coupling (clutch).
Cheers,
James
This one is probably more representative of your poti with the rear mounted motor. You can see that there is a cross shaft down in there that can drop out of position and jam up the works. The white plastic gear is the slip-ring coupling (clutch).
Cheers,
James