Discussion about the Korg PolySix synthesizer

hi folks, i am having an issue with my P6: i have put 2 3V lithium batteries in, hard soldered, and the machine will hold patches for a day. then, it dies, and the battery drops to about .1V.

i have been told that the circuit actually needs to have a ni-cad battery. will nickel-metal-something work? my local battery place has a chargeable nickel-something or other battery, but its not "nickel cadmium".

or do i have another problem not battery related? fyi, D15 and R91 is replaced as 1n4148's, and the elec capacitor removed, per the old crow site instructions. thanks so much for the help!-rj

> hi folks, i am having an issue with my P6: i have put 2 3V lithium batteries
> in, hard soldered, and the machine will hold patches for a day. then, it
> dies, and the battery drops to about .1V.
>
> i have been told that the circuit actually needs to have a ni-cad battery.
> will nickel-metal-something work? my local battery place has a chargeable
> nickel-something or other battery, but its not "nickel cadmium".

You can pickup a nicad battery for a cordless phone from radio shack which
will work and is cheap.  The charging circuit for some other type of
rechargable is going to be different.

perl -e 's++=END;++y(;-P)}\n?k++=;<+xru}?print:??;'

are the diodes in the right direction?

On Mon, Dec 21, 2009 at 8:19 PM, r_j_d_2.phila <r_j_d_2.phila@yahoo.com> wrote:
> hi folks, i am having an issue with my P6: i have put 2 3V lithium batteries in, hard soldered, and the machine will hold patches for a day. then, it dies, and the battery drops to about .1V.
>
> i have been told that the circuit actually needs to have a ni-cad battery. will nickel-metal-something work? my local battery place has a chargeable nickel-something or other battery, but its not "nickel cadmium".
>
> or do i have another problem not battery related? fyi, D15 and R91 is replaced as 1n4148's, and the elec capacitor removed, per the old crow site instructions. thanks so much for the help!-rj
>
>
>
> ------------------------------------
>
> PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6Yahoo! Groups Links
>
>
>
>



-- 
.sig
-Chromatest J. Pantsmaker
http://www.chromatest.net

Hi,

Yes, do check the mod that CJP suggested. 2 x3v cells? As long as you stop
it being charged by the supply voltage (resistor and diode mod) then a
single lithium CR2032 cell in a holder will suffice for well over 5 years!
Check carefully what you have done and use a DMM on the low resistance range
to make sure there are no low resistance paths to ground or short circuits.
Sounds like you batteries were partially or dead shorted.

Cheers,
Andy  


On 22/12/2009 04:19, "Chromatest J. Pantsmaker" <chromatest@azburners.org>
wrote:

>  
>  
>  
>    
> 
> are the diodes in the right direction?
> 
> On Mon, Dec 21, 2009 at 8:19 PM, r_j_d_2.phila <r_j_d_2.phila@yahoo.com
> <mailto:r_j_d_2.phila%40yahoo.com> > wrote:
>> > hi folks, i am having an issue with my P6: i have put 2 3V lithium
>> batteries in, hard soldered, and the machine will hold patches for a day.
>> then, it dies, and the battery drops to about .1V.
>> >
>> > i have been told that the circuit actually needs to have a ni-cad battery.
>> will nickel-metal-something work? my local battery place has a chargeable
>> nickel-something or other battery, but its not "nickel cadmium".
>> >
>> > or do i have another problem not battery related? fyi, D15 and R91 is
>> replaced as 1n4148's, and the elec capacitor removed, per the old crow site
>> instructions. thanks so much for the help!-rj
>> >
>> >
>> >
>> > ------------------------------------
>> >
>> > PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6Yahoo! Groups
>> Links
>> >
>> >
>> >
>> >



[Non-text portions of this message have been removed]

yes. i've checked this multiple times, and even replaced them the 2nd time i swapped the battery.

i guess what i really need to know is this: would a lithium battery work in the circuit, or no? would it require modification to do so? i thought i could just drop in a lithium, but apparently, i have been told that's not the case. trying to confirm or deny this. thanks-rj

is anyone successfully using lithium battery in P6?

--- In PolySix@yahoogroups.com, "Chromatest J. Pantsmaker" <chromatest@...> wrote:

>
> are the diodes in the right direction?
> 
> On Mon, Dec 21, 2009 at 8:19 PM, r_j_d_2.phila <r_j_d_2.phila@...> wrote:
> > hi folks, i am having an issue with my P6: i have put 2 3V lithium batteries in, hard soldered, and the machine will hold patches for a day. then, it dies, and the battery drops to about .1V.
> >
> > i have been told that the circuit actually needs to have a ni-cad battery. will nickel-metal-something work? my local battery place has a chargeable nickel-something or other battery, but its not "nickel cadmium".
> >
> > or do i have another problem not battery related? fyi, D15 and R91 is replaced as 1n4148's, and the elec capacitor removed, per the old crow site instructions. thanks so much for the help!-rj
> >
> >
> >
> > ------------------------------------
> >
> > PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6Yahoo! Groups Links
> >
> >
> >
> >
> 
> 
> 
> -- 
> .sig
> -Chromatest J. Pantsmaker
> http://www.chromatest.net
>

I have repaired well over a dozen KLM-367s and have always used a Lithium
coin cells as a replacement. A CR2032 in a holder is all that is required.
You just need to take out the resistor next to D15 and insert an 1n 4148
with the anode (the stripe) facing down towards the edge of the board in its
place. Like I said, you should check for low resistance / shorts around this
area if you are running down batteries very quickly.

A


On 22/12/2009 15:13, "r_j_d_2.phila" <r_j_d_2.phila@yahoo.com> wrote:

>  
>  
>  
>    
> 
> yes. i've checked this multiple times, and even replaced them the 2nd time i
> swapped the battery.
> 
> i guess what i really need to know is this: would a lithium battery work in
> the circuit, or no? would it require modification to do so? i thought i could
> just drop in a lithium, but apparently, i have been told that's not the case.
> trying to confirm or deny this. thanks-rj
> 
> is anyone successfully using lithium battery in P6?
> 
> --- In PolySix@yahoogroups.com <mailto:PolySix%40yahoogroups.com> ,
> "Chromatest J. Pantsmaker" <chromatest@...> wrote:
>> >
>> > are the diodes in the right direction?
>> > 
>> > On Mon, Dec 21, 2009 at 8:19 PM, r_j_d_2.phila <r_j_d_2.phila@...> wrote:
>>> > > hi folks, i am having an issue with my P6: i have put 2 3V lithium
>>> batteries in, hard soldered, and the machine will hold patches for a day.
>>> then, it dies, and the battery drops to about .1V.
>>> > >
>>> > > i have been told that the circuit actually needs to have a ni-cad
>>> battery. will nickel-metal-something work? my local battery place has a
>>> chargeable nickel-something or other battery, but its not "nickel cadmium".
>>> > >
>>> > > or do i have another problem not battery related? fyi, D15 and R91 is
>>> replaced as 1n4148's, and the elec capacitor removed, per the old crow site
>>> instructions. thanks so much for the help!-rj
>>> > >
>>> > >
>>> > >
>>> > > ------------------------------------
>>> > >
>>> > > PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6Yahoo! Groups
>>> Links
>>> > >
>>> > >
>>> > >
>>> > >
>> > 
>> > 
>> > 
>> > -- 
>> > .sig
>> > -Chromatest J. Pantsmaker
>> > http://www.chromatest.net
>> >
> 
>  
>    
> 
> 



[Non-text portions of this message have been removed]

I also did this with mine, as per old crow. Never had a problem.

To: PolySix@yahoogroups.com

From: andy@networkjabber.com
Date: Tue, 22 Dec 2009 15:23:51 +0000
Subject: Re: [PolySix] Re: lithium vs. ni-cad battery?


















 



  


    
      
      
      I have repaired well over a dozen KLM-367s and have always used a Lithium

coin cells as a replacement. A CR2032 in a holder is all that is required.

You just need to take out the resistor next to D15 and insert an 1n 4148

with the anode (the stripe) facing down towards the edge of the board in its

place. Like I said, you should check for low resistance / shorts around this

area if you are running down batteries very quickly.



A



On 22/12/2009 15:13, "r_j_d_2.phila" <r_j_d_2.phila@yahoo.com> wrote:



>  

>  

>  

>    

> 

> yes. i've checked this multiple times, and even replaced them the 2nd time i

> swapped the battery.

> 

> i guess what i really need to know is this: would a lithium battery work in

> the circuit, or no? would it require modification to do so? i thought i could

> just drop in a lithium, but apparently, i have been told that's not the case.

> trying to confirm or deny this. thanks-rj

> 

> is anyone successfully using lithium battery in P6?

> 

> --- In PolySix@yahoogroups.com <mailto:PolySix%40yahoogroups.com> ,

> "Chromatest J. Pantsmaker" <chromatest@...> wrote:

>> >

>> > are the diodes in the right direction?

>> > 

>> > On Mon, Dec 21, 2009 at 8:19 PM, r_j_d_2.phila <r_j_d_2.phila@...> wrote:

>>> > > hi folks, i am having an issue with my P6: i have put 2 3V lithium

>>> batteries in, hard soldered, and the machine will hold patches for a day.

>>> then, it dies, and the battery drops to about .1V.

>>> > >

>>> > > i have been told that the circuit actually needs to have a ni-cad

>>> battery. will nickel-metal-something work? my local battery place has a

>>> chargeable nickel-something or other battery, but its not "nickel cadmium".

>>> > >

>>> > > or do i have another problem not battery related? fyi, D15 and R91 is

>>> replaced as 1n4148's, and the elec capacitor removed, per the old crow site

>>> instructions. thanks so much for the help!-rj

>>> > >

>>> > >

>>> > >

>>> > > ------------------------------------

>>> > >

>>> > > PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6Yahoo! Groups

>>> Links

>>> > >

>>> > >

>>> > >

>>> > >

>> > 

>> > 

>> > 

>> > -- 

>> > .sig

>> > -Chromatest J. Pantsmaker

>> > http://www.chromatest.net

>> >

> 

>  

>    

> 

> 



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