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Plectrum_Fingers
Copper Member
United Kingdom
15 Posts |
 Posted - 02/01/2007 : 11:25:38
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So, last week I swapped a BD-2 for a slightly beaten up PN-2 with my brother in-law.
Anyway, the rate knob doesn't work (i knew this when i made the swap) and I was wondering if anyone knows the value and type of pot that's used so I can try a replacement?
I think its 1meg but im not sure if its Lin or Log.
Any help would be much appreciated.
Thankee, |
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eeone
Bronze Member
Yugoslavia
121 Posts |
Posted - 02/01/2007 : 12:38:12
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You can check this out easily if you have a multimeter.
(like this one, for example : http://en.wikipedia.org/wiki/Multimeter)
To check out the value, mesure the resistance between outer two contacts.
To check wheter it's log or linear, conect the multimeter to the center and one of the other two contacts. Then turn the pot halfway. If the resistance is half of the full value (1meg -> 500k) the pot is linear, else it's log.
To do these measurments, you'll need to disconnect the pot.
Or you can check PN-2 service notes/manual/schematics.
I think freeinfosociety.com has some of those.
There, hope that helps.  |
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 02/01/2007 : 14:12:11
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Hi Plectrum_Fingers, Eeone & guys
I just did a quick check, there's no schematic for the PN-2 at the Free Info Society. 
I had a quick look around he neat but couldn't find a link to send you to.
Regards Dr. Bob 
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diggum12
Silver Member
USA
282 Posts |
Posted - 02/01/2007 : 19:12:00
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quote:
To check wheter it's log or linear, conect the multimeter to the center and one of the other two contacts. Then turn the pot halfway. If the resistance is half of the full value (1meg -> 500k) the pot is linear, else it's log.
Good advice eeone! I would have just looked for a "A" or "L" stamp on the pot, but I know Boss has really tiny pots and you can't always see it. |
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Plectrum_Fingers
Copper Member
United Kingdom
15 Posts |
Posted - 02/04/2007 : 05:25:39
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Hi,
I scoured the net for a while but couldn't find a schematic or any service notes on the PN-2 either Dr. Bob.
I had a look on the pot to see if there were any markings but there weren't. So I bought and tested a logarithmic and a linear and it turned out to be a log pot, which when looking back seemed the obvious choice.
Anyway, everything is working like it should now.
Thank you all for your help. |
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 02/04/2007 : 05:35:20
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Hi Plectrum_Fingers
I call what you just did ---- "The Reality Method"
Works every time - First time ... 
Have fun with your newly repaired PN-2 ...
Regards Dr. Bob
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Topic |
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PN-2 Rate Pot Replacement
