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 Forum index » DIY Hardware and Software » Circuit Bending
tr-505 no battery power
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binarybloke



Joined: Nov 01, 2007
Posts: 11
Location: uk

PostPosted: Sat Nov 03, 2007 3:11 pm    Post subject: tr-505 no battery power Reply with quote  Mark this post and the followings unread

noob bender here - i just got hold of a tr-505 but the unit will only power-up from an ac adapter. there seems to have been some kind of battery leak at some point as i found lots of crap on the battery contacts but after cleaning and checking connections the machine still wont boot up unless using 9v psu.

can anyone give me some pointers?
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binarybloke



Joined: Nov 01, 2007
Posts: 11
Location: uk

PostPosted: Tue Nov 06, 2007 2:17 pm    Post subject: Reply with quote  Mark this post and the followings unread

Alternatively if someone could tell me the correct wiring configuration from the CN4 connection to the battery compartment, that would be a big help. Very Happy
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Blue Hell
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Joined: Apr 03, 2004
Posts: 20704
Location: The Netherlands, Enschede
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PostPosted: Tue Nov 06, 2007 2:47 pm    Post subject: Reply with quote  Mark this post and the followings unread

binarybloke wrote:
Alternatively if someone could tell me the correct wiring configuration from the CN4 connection to the battery compartment, that would be a big help. Very Happy


I bet Laughing , tried a Google on this, but found nothing .. well so did you I guess Wink

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binarybloke



Joined: Nov 01, 2007
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Location: uk

PostPosted: Wed Nov 07, 2007 1:44 am    Post subject: Reply with quote  Mark this post and the followings unread

Thanks Blue, worth a try Wink
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binarybloke



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PostPosted: Thu Nov 08, 2007 9:46 am    Post subject: Reply with quote  Mark this post and the followings unread

ok, can anyone tell me if bending while using a 9v psu with the 505 is a bad idea?
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Kassen
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Joined: Jul 06, 2004
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PostPosted: Thu Nov 08, 2007 11:00 am    Post subject: Reply with quote  Mark this post and the followings unread

Yes, it's supposed to be a bad idea.... but I modded mine to have separate outputs (didn't like any of the glitches I found that much) while it was plugged in and I'm still alive.

In case of doubt you can always use those rubber washing up gloves.

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binarybloke



Joined: Nov 01, 2007
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Location: uk

PostPosted: Fri Nov 09, 2007 2:07 am    Post subject: Reply with quote  Mark this post and the followings unread

Thanks for the rubber gloves advice Very Happy i did some poking around last night with a circuit breaker attched to the psu and no probs yet.

I read a post somewhere suggesting that drum machines/synths of this nature that use 9v are relatively safe, something to do with the amount of charge stored in capacitors being pretty low.
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