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Re: [xl7] 220 vs. 110 volts

Re: [xl7] 220 vs. 110 volts

2005-01-04 by Bob S.

I noticed while I was in Sweden with my XL-7, it ran hot on 220v.  After a while, I could not keep it on my lap while programming.  In the US where I operate the unit normally on 110v., it rund cool.  As there are no cooling vents on the unit, I would expect long term use at 220v. will shorten the life of the components.  A small 220v. to 110v. transformer/converter costs as little as $8.00USD and might be worth the investment (even if it costs a bit more and with shipping) if you keep the unit on all the time as I do......
 
Bob
Corona/Riverside, CA
Show quoted textHide quoted text
-----Original Message-----
From: José Sáez <taliesin@...>
Sent: Jan 4, 2005 9:35 AM
To: xl7@...m
Subject: Re: [xl7] Presets stored within pattern ?????


<html><body>



<tt>
Hey, thanks everyone for the prompt answers. I'm running a test now about warmth with 220 / 110 V settings.<BR>
<BR>
I've been running the XL7 all this time at 220, and i'm wondering if that's healthy or not.<BR>
<BR>
Jose<BR>
<BR>
........<BR>
I'm NOT going to fix your computer.<BR>
........<BR>
  ----- Original Message ----- <BR>
  From: cosine... zero <BR>
  To: xl7@yahoogroups.com <BR>
  Sent: Tuesday, January 04, 2005 2:15 PM<BR>
  Subject: Re: [xl7] Presets stored within pattern ?????<BR>
<BR>
<BR>
  Presets are NOT stored with the Pattern.  Presets are completely <BR>
  > independant from Patterns, if you tweak a Preset, then save a<BR>
  > PATTERN, all <BR>
  > of the tweaks you made to the Preset will be gone next time you turn<BR>
  > on your XX-7.  Presets are independant entities that are stored<BR>
  > completely seperate from Patterns. The Pattern stores the LOCATION of<BR>
  the Preset, not the actual Preset data. <BR>
<BR>
  -->Let me make this even MORE confusing. :) Tweaks ARE stored with the<BR>
  pattern. :) Any knob twiddles are kept in the pattern (and song). And I<BR>
  haven't tried any sysex in my tracks yet, but can't you store sysex<BR>
  within the patterns?<BR>
<BR>
  But yes, He's right to clarify that the preset itself is not stored in<BR>
  the pattern, but a preset location (think PATCH CHANGE) is.<BR>
<BR>
<BR>
  cosinezero<BR>
<BR>
  =====<BR>
  <A href="mailto:cosinezero@yahoo.com">cosinezero@...</A><BR>
  <A href="<a href="http://www.defmatch.com">http://www.defmatch.com</a>"><a href="http://www.defmatch.com">http://www.defmatch.com</a></A><BR>
<BR>
<BR>
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Re: 220 vs. 110 volts

2005-01-05 by gonzinigonz

Yep do it, the differance is worth it..
Gonz



--- In xl7@yahoogroups.com, "Bob S." <tttsystems@e...> wrote:
> I noticed while I was in Sweden with my XL-7, it ran hot on 220v.  
After a while, I could not keep it on my lap while programming.  In 
the US where I operate the unit normally on 110v., it rund cool.  As 
there are no cooling vents on the unit, I would expect long term use 
at 220v. will shorten the life of the components.  A small 220v. to 
110v. transformer/converter costs as little as $8.00USD and might be 
worth the investment (even if it costs a bit more and with shipping) 
if you keep the unit on all the time as I do......
>  
> Bob
> Corona/Riverside, CA
> 
> 
> 
> -----Original Message-----
> From: José Sáez <taliesin@t...>
> Sent: Jan 4, 2005 9:35 AM
> To: xl7@yahoogroups.com
> Subject: Re: [xl7] Presets stored within pattern ?????
> 
> 
> <html><body>
> 
> 
> 
> <tt>
> Hey, thanks everyone for the prompt answers. I'm running a test now 
about warmth with 220 / 110 V settings.<BR>
> <BR>
> I've been running the XL7 all this time at 220, and i'm wondering 
if that's healthy or not.<BR>
> <BR>
> Jose<BR>
> <BR>
> ........<BR>
> I'm NOT going to fix your computer.<BR>
> ........<BR>
>   ----- Original Message ----- <BR>
>   From: cosine... zero <BR>
>   To: xl7@yahoogroups.com <BR>
>   Sent: Tuesday, January 04, 2005 2:15 PM<BR>
>   Subject: Re: [xl7] Presets stored within pattern ?????<BR>
> <BR>
> <BR>
>   Presets are NOT stored with the Pattern.  Presets are completely 
<BR>
>   > independant from Patterns, if you tweak a Preset, then save 
a<BR>
>   > PATTERN, all <BR>
>   > of the tweaks you made to the Preset will be gone next time you 
turn<BR>
>   > on your XX-7.  Presets are independant entities that are 
stored<BR>
>   > completely seperate from Patterns. The Pattern stores the 
LOCATION of<BR>
>   the Preset, not the actual Preset data. <BR>
> <BR>
>   -->Let me make this even MORE confusing. :) Tweaks ARE stored 
with the<BR>
>   pattern. :) Any knob twiddles are kept in the pattern (and song). 
And I<BR>
>   haven't tried any sysex in my tracks yet, but can't you store 
sysex<BR>
>   within the patterns?<BR>
> <BR>
>   But yes, He's right to clarify that the preset itself is not 
stored in<BR>
>   the pattern, but a preset location (think PATCH CHANGE) is.<BR>
> <BR>
> <BR>
>   cosinezero<BR>
> <BR>
>   =====<BR>
>   <A href="mailto:cosinezero@y...">cosinezero@y...</A><BR>
>   <A href="<a 
href="http://www.defmatch.com">http://www.defmatch.com</a>"><a 
href="http://www.defmatch.com">http://www.defmatch.com</a></A><BR>
> <BR>
> <BR>
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>       <BR>
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Re: [xl7] 220 vs. 110 volts

2005-01-05 by Wesley D.

i didn't think you could even plug a US AC cable into
a euro plug, I thought the converter was a must....
--- "Bob S." <tttsystems@...> wrote:

> I noticed while I was in Sweden with my XL-7, it ran
> hot on 220v.  After a while, I could not keep it on
> my lap while programming.  In the US where I operate
> the unit normally on 110v., it rund cool.  As there
> are no cooling vents on the unit, I would expect
> long term use at 220v. will shorten the life of the
> components.  A small 220v. to 110v.
> transformer/converter costs as little as $8.00USD
> and might be worth the investment (even if it costs
> a bit more and with shipping) if you keep the unit
> on all the time as I do......
>  
> Bob
> Corona/Riverside, CA
> 
> 
> 
> -----Original Message-----
> From: Jos\ufffd S\ufffdez <taliesin@...>
> Sent: Jan 4, 2005 9:35 AM
> To: xl7@yahoogroups.com
> Subject: Re: [xl7] Presets stored within pattern
> ?????
> 
> 
> <html><body>
> 
> 
> 
> <tt>
> Hey, thanks everyone for the prompt answers. I'm
> running a test now about warmth with 220 / 110 V
> settings.<BR>
> <BR>
> I've been running the XL7 all this time at 220, and
> i'm wondering if that's healthy or not.<BR>
> <BR>
> Jose<BR>
> <BR>
> ........<BR>
> I'm NOT going to fix your computer.<BR>
> ........<BR>
>   ----- Original Message ----- <BR>
>   From: cosine... zero <BR>
>   To: xl7@yahoogroups.com <BR>
>   Sent: Tuesday, January 04, 2005 2:15 PM<BR>
>   Subject: Re: [xl7] Presets stored within pattern
> ?????<BR>
> <BR>
> <BR>
>   Presets are NOT stored with the Pattern.  Presets
> are completely <BR>
>   > independant from Patterns, if you tweak a
> Preset, then save a<BR>
>   > PATTERN, all <BR>
>   > of the tweaks you made to the Preset will be
> gone next time you turn<BR>
>   > on your XX-7.  Presets are independant entities
> that are stored<BR>
>   > completely seperate from Patterns. The Pattern
> stores the LOCATION of<BR>
>   the Preset, not the actual Preset data. <BR>
> <BR>
>   -->Let me make this even MORE confusing. :) Tweaks
> ARE stored with the<BR>
>   pattern. :) Any knob twiddles are kept in the
> pattern (and song). And I<BR>
>   haven't tried any sysex in my tracks yet, but
> can't you store sysex<BR>
>   within the patterns?<BR>
> <BR>
>   But yes, He's right to clarify that the preset
> itself is not stored in<BR>
>   the pattern, but a preset location (think PATCH
> CHANGE) is.<BR>
> <BR>
> <BR>
>   cosinezero<BR>
> <BR>
>   =====<BR>
>   <A
>
href="mailto:cosinezero@...">cosinezero@...</A><BR>
>   <A href="<a
>
href="http://www.defmatch.com">http://www.defmatch.com</a>"><a
>
href="http://www.defmatch.com">http://www.defmatch.com</a></A><BR>
> <BR>
> <BR>
>               <BR>
>   __________________________________ <BR>
>   Do you Yahoo!? <BR>
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Re: [xl7] 220 vs. 110 volts

2005-01-05 by José Sáez

You don't need to force the plug... you just buy a different power cable....

Jose

>
> i didn't think you could even plug a US AC cable into
> a euro plug, I thought the converter was a must....
> --- "Bob S." <tttsystems@...> wrote:
>
> > I noticed while I was in Sweden with my XL-7, it ran
> > hot on 220v.  After a while, I could not keep it on
> > my lap while programming.  In the US where I operate
> > the unit normally on 110v., it rund cool.  As there
> > are no cooling vents on the unit, I would expect
> > long term use at 220v. will shorten the life of the
> > components.  A small 220v. to 110v.
> > transformer/converter costs as little as $8.00USD
> > and might be worth the investment (even if it costs
> > a bit more and with shipping) if you keep the unit
> > on all the time as I do......
> >
> > Bob
> > Corona/Riverside, CA
> >
> >
> >
> > -----Original Message-----
> > From: Jos\ufffd S\ufffdez <taliesin@...>
> > Sent: Jan 4, 2005 9:35 AM
> > To: xl7@yahoogroups.com
> > Subject: Re: [xl7] Presets stored within pattern
> > ?????
> >
> >
> > <html><body>
> >
> >
> >
> > <tt>
> > Hey, thanks everyone for the prompt answers. I'm
> > running a test now about warmth with 220 / 110 V
> > settings.<BR>
> > <BR>
> > I've been running the XL7 all this time at 220, and
> > i'm wondering if that's healthy or not.<BR>
> > <BR>
> > Jose<BR>
> > <BR>
> > ........<BR>
> > I'm NOT going to fix your computer.<BR>
> > ........<BR>
> >   ----- Original Message ----- <BR>
> >   From: cosine... zero <BR>
> >   To: xl7@yahoogroups.com <BR>
> >   Sent: Tuesday, January 04, 2005 2:15 PM<BR>
> >   Subject: Re: [xl7] Presets stored within pattern
> > ?????<BR>
> > <BR>
> > <BR>
> >   Presets are NOT stored with the Pattern.  Presets
> > are completely <BR>
> >   > independant from Patterns, if you tweak a
> > Preset, then save a<BR>
> >   > PATTERN, all <BR>
> >   > of the tweaks you made to the Preset will be
> > gone next time you turn<BR>
> >   > on your XX-7.  Presets are independant entities
> > that are stored<BR>
> >   > completely seperate from Patterns. The Pattern
> > stores the LOCATION of<BR>
> >   the Preset, not the actual Preset data. <BR>
> > <BR>
> >   -->Let me make this even MORE confusing. :) Tweaks
> > ARE stored with the<BR>
> >   pattern. :) Any knob twiddles are kept in the
> > pattern (and song). And I<BR>
> >   haven't tried any sysex in my tracks yet, but
> > can't you store sysex<BR>
> >   within the patterns?<BR>
> > <BR>
> >   But yes, He's right to clarify that the preset
> > itself is not stored in<BR>
> >   the pattern, but a preset location (think PATCH
> > CHANGE) is.<BR>
> > <BR>
> > <BR>
> >   cosinezero<BR>
> > <BR>
> >   =====<BR>
> >   <A
> >
> href="mailto:cosinezero@...">cosinezero@...</A><BR>
> >   <A href="<a
> >
> href="http://www.defmatch.com">http://www.defmatch.com</a>"><a
> >
> href="http://www.defmatch.com">http://www.defmatch.com</a></A><BR>
> > <BR>
> > <BR>
> >               <BR>
> >   __________________________________ <BR>
> >   Do you Yahoo!? <BR>
> >   Yahoo! Mail - Find what you need with new enhanced
> > search.<BR>
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>
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50</a><BR>
> > <BR>
> > <BR>
> >
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</a><BR>
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Re: [xl7] 220 vs. 110 volts

2005-01-05 by Bob S.

Or a $2 flat US prong to round Europe prong adapter as I did......
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: José Sáez 
  To: xl7@yahoogroups.com 
  Sent: Tuesday, January 04, 2005 9:40 PM
  Subject: Re: [xl7] 220 vs. 110 volts



  You don't need to force the plug... you just buy a different power cable....

  Jose

  >
  > i didn't think you could even plug a US AC cable into
  > a euro plug, I thought the converter was a must....
  > --- "Bob S." <tttsystems@...> wrote:
  >
  > > I noticed while I was in Sweden with my XL-7, it ran
  > > hot on 220v.  After a while, I could not keep it on
  > > my lap while programming.  In the US where I operate
  > > the unit normally on 110v., it rund cool.  As there
  > > are no cooling vents on the unit, I would expect
  > > long term use at 220v. will shorten the life of the
  > > components.  A small 220v. to 110v.
  > > transformer/converter costs as little as $8.00USD
  > > and might be worth the investment (even if it costs
  > > a bit more and with shipping) if you keep the unit
  > > on all the time as I do......
  > >
  > > Bob
  > > Corona/Riverside, CA
  > >
  > >
  > >
  > > -----Original Message-----
  > > From: José Sáez <taliesin@...>
  > > Sent: Jan 4, 2005 9:35 AM
  > > To: xl7@yahoogroups.com
  > > Subject: Re: [xl7] Presets stored within pattern
  > > ?????
  > >
  > >
  > > <html><body>
  > >
  > >
  > >
  > > <tt>
  > > Hey, thanks everyone for the prompt answers. I'm
  > > running a test now about warmth with 220 / 110 V
  > > settings.<BR>
  > > <BR>
  > > I've been running the XL7 all this time at 220, and
  > > i'm wondering if that's healthy or not.<BR>
  > > <BR>
  > > Jose<BR>
  > > <BR>
  > > ........<BR>
  > > I'm NOT going to fix your computer.<BR>
  > > ........<BR>
  > >   ----- Original Message ----- <BR>
  > >   From: cosine... zero <BR>
  > >   To: xl7@yahoogroups.com <BR>
  > >   Sent: Tuesday, January 04, 2005 2:15 PM<BR>
  > >   Subject: Re: [xl7] Presets stored within pattern
  > > ?????<BR>
  > > <BR>
  > > <BR>
  > >   Presets are NOT stored with the Pattern.  Presets
  > > are completely <BR>
  > >   > independant from Patterns, if you tweak a
  > > Preset, then save a<BR>
  > >   > PATTERN, all <BR>
  > >   > of the tweaks you made to the Preset will be
  > > gone next time you turn<BR>
  > >   > on your XX-7.  Presets are independant entities
  > > that are stored<BR>
  > >   > completely seperate from Patterns. The Pattern
  > > stores the LOCATION of<BR>
  > >   the Preset, not the actual Preset data. <BR>
  > > <BR>
  > >   -->Let me make this even MORE confusing. :) Tweaks
  > > ARE stored with the<BR>
  > >   pattern. :) Any knob twiddles are kept in the
  > > pattern (and song). And I<BR>
  > >   haven't tried any sysex in my tracks yet, but
  > > can't you store sysex<BR>
  > >   within the patterns?<BR>
  > > <BR>
  > >   But yes, He's right to clarify that the preset
  > > itself is not stored in<BR>
  > >   the pattern, but a preset location (think PATCH
  > > CHANGE) is.<BR>
  > > <BR>
  > > <BR>
  > >   cosinezero<BR>
  > > <BR>
  > >   =====<BR>
  > >   <A
  > >
  > href="mailto:cosinezero@...">cosinezero@...</A><BR>
  > >   <A href="<a
  > >
  > href="http://www.defmatch.com">http://www.defmatch.com</a>"><a
  > >
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Re: 220 vs. 110 volts

2005-01-05 by groakes2000

...In which case you would still be running at 220v. If you want to 
run at 110v from a 220/240v mains supply you WILL need a stepdown 
transformer.

cheers
Greg

--- In xl7@yahoogroups.com, José Sáez <taliesin@t...> wrote:
> 
> You don't need to force the plug... you just buy a different power 
cable....
> 
> Jose
> 
> >
> > i didn't think you could even plug a US AC cable into
> > a euro plug, I thought the converter was a must....
> > --- "Bob S." <tttsystems@e...> wrote:
> >
> > > I noticed while I was in Sweden with my XL-7, it ran
> > > hot on 220v.  After a while, I could not keep it on
> > > my lap while programming.  In the US where I operate
> > > the unit normally on 110v., it rund cool.  As there
> > > are no cooling vents on the unit, I would expect
> > > long term use at 220v. will shorten the life of the
> > > components.  A small 220v. to 110v.
> > > transformer/converter costs as little as $8.00USD
> > > and might be worth the investment (even if it costs
> > > a bit more and with shipping) if you keep the unit
> > > on all the time as I do......
> > >
> > > Bob
> > > Corona/Riverside, CA
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: José Sáez <taliesin@t...>
> > > Sent: Jan 4, 2005 9:35 AM
> > > To: xl7@yahoogroups.com
> > > Subject: Re: [xl7] Presets stored within pattern
> > > ?????
> > >
> > >
> > > <html><body>
> > >
> > >
> > >
> > > <tt>
> > > Hey, thanks everyone for the prompt answers. I'm
> > > running a test now about warmth with 220 / 110 V
> > > settings.<BR>
> > > <BR>
> > > I've been running the XL7 all this time at 220, and
> > > i'm wondering if that's healthy or not.<BR>
> > > <BR>
> > > Jose<BR>
> > > <BR>
> > > ........<BR>
> > > I'm NOT going to fix your computer.<BR>
> > > ........<BR>
> > >   ----- Original Message ----- <BR>
> > >   From: cosine... zero <BR>
> > >   To: xl7@yahoogroups.com <BR>
> > >   Sent: Tuesday, January 04, 2005 2:15 PM<BR>
> > >   Subject: Re: [xl7] Presets stored within pattern
> > > ?????<BR>
> > > <BR>
> > > <BR>
> > >   Presets are NOT stored with the Pattern.  Presets
> > > are completely <BR>
> > >   > independant from Patterns, if you tweak a
> > > Preset, then save a<BR>
> > >   > PATTERN, all <BR>
> > >   > of the tweaks you made to the Preset will be
> > > gone next time you turn<BR>
> > >   > on your XX-7.  Presets are independant entities
> > > that are stored<BR>
> > >   > completely seperate from Patterns. The Pattern
> > > stores the LOCATION of<BR>
> > >   the Preset, not the actual Preset data. <BR>
> > > <BR>
> > >   -->Let me make this even MORE confusing. :) Tweaks
> > > ARE stored with the<BR>
> > >   pattern. :) Any knob twiddles are kept in the
> > > pattern (and song). And I<BR>
> > >   haven't tried any sysex in my tracks yet, but
> > > can't you store sysex<BR>
> > >   within the patterns?<BR>
> > > <BR>
> > >   But yes, He's right to clarify that the preset
> > > itself is not stored in<BR>
> > >   the pattern, but a preset location (think PATCH
> > > CHANGE) is.<BR>
> > > <BR>
> > > <BR>
> > >   cosinezero<BR>
> > > <BR>
> > >   =====<BR>
> > >   <A
> > >
> > href="mailto:cosinezero@y...">cosinezero@y...</A><BR>
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> > >
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Re: 220 vs. 110 volts

2005-01-06 by groakes2000

On another note, my continuing problem with Fatal Errors has been 
somewhat ameliorated by using a stepdown transformer running at 
110v. Time between failures now stretches out to over 5 hours.... 
Which reinforces the thought that maybe my problem is related to a 
heat related failure of a component whose tolerances are 
rather "fine"....

cheers
Greg

Re: [xl7] Re: 220 vs. 110 volts

2005-01-07 by José Sáez

Without opening the unit, i'm beginning to think that the problem is located at the power transformer. Perhaps they have used cheap transformers with low quality copper wires that have an increased resistance, and in turn they generate more heat. Heat, as we all know, damages chips...

There are two solutions for this situation: cooling the transformer (and that would include some modding of the case and the using of some kind of fan), and the use of a stepdown transformer. The fan idea seems cool, but it will add unwanted noise and you'll have to open your XL7 and do some risky maneuvers to get it done. The stepdown converter, on the other side, moves the problem of heat generation outside the unit. Those converters get hot,and that means that in the end you will get heat, but in this case it will be outside of the unit (and that's the idea with fans too), adding to stability. I haven't had time to complete the temperature tests, but the difference is obvious by simply touching the unit.

Perhaps we need to add this to the FAQ...

Jose
Show quoted textHide quoted text
----- Original Message ----- 
  From: groakes2000 
  To: xl7@yahoogroups.com 
  Sent: Thursday, January 06, 2005 8:17 PM
  Subject: [xl7] Re: 220 vs. 110 volts



  On another note, my continuing problem with Fatal Errors has been 
  somewhat ameliorated by using a stepdown transformer running at 
  110v. Time between failures now stretches out to over 5 hours.... 
  Which reinforces the thought that maybe my problem is related to a 
  heat related failure of a component whose tolerances are 
  rather "fine"....

  cheers
  Greg





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

Re: 220 vs. 110 volts

2005-01-08 by gonzinigonz

Sounds like another switchmode PSU failing..
This would explain your errors that you've been having. It doesnt 
happen without power.
Its one of the most common faults with any electronic / electrical 
gadget, lack of correct supply voltages ie failed PSU's
I have an BSS FDS366 Omnidrive here to repair. Guess what failed 
swithmode! Sometimes it will start up and be fine. Other times you 
have to repeatedly turn it on/off to get it to fire up.
This fault is with the start up circuitry..
Anyway id start looking for a replacement PSU for it, there has been 
talk of this on the list..
Im sure another type of switchmode could be fitted, voltage's / 
size / shape permitting. I dont think these command stations are to 
strange in the PSU department 
I run my XL-7 via a 110v transformer now, the PSU gets far to hot for 
my liking on 240v ;o)
Regards
Gonz




#--- In xl7@yahoogroups.com, "groakes2000" <groakes@i...> wrote:
Show quoted textHide quoted text
> 
> On another note, my continuing problem with Fatal Errors has been 
> somewhat ameliorated by using a stepdown transformer running at 
> 110v. Time between failures now stretches out to over 5 hours.... 
> Which reinforces the thought that maybe my problem is related to a 
> heat related failure of a component whose tolerances are 
> rather "fine"....
> 
> cheers
> Greg

Re: [xl7] Re: 220 vs. 110 volts

2005-01-09 by José Sáez

All right, i measured temperatures of the surface of the unit day and night after 1 hour of operation at 220 and 110V (i waited for the unit to cool down before taking the next measure), and this are the results:

220V ---> average Tº: 36º C (96.8 F)

110V ---> average Tº: 29.6º C (85.28 F)

The average environment Tº has been around 80-90 Fº these days.

In conclusion: even when the manual says that the XL-7 unit can be run at 220V, it is advisable to use a stepdown voltage converter in order to reduce heat and add to stability and extend it's working life. 

I haven't measured the Tº inside the case, but i suppose it could be even higher. Don't want to run the risk...

Jose
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: gonzinigonz 
  To: xl7@yahoogroups.com 
  Sent: Saturday, January 08, 2005 11:08 AM
  Subject: [xl7] Re: 220 vs. 110 volts



  Sounds like another switchmode PSU failing..
  This would explain your errors that you've been having. It doesnt 
  happen without power.
  Its one of the most common faults with any electronic / electrical 
  gadget, lack of correct supply voltages ie failed PSU's
  I have an BSS FDS366 Omnidrive here to repair. Guess what failed 
  swithmode! Sometimes it will start up and be fine. Other times you 
  have to repeatedly turn it on/off to get it to fire up.
  This fault is with the start up circuitry..
  Anyway id start looking for a replacement PSU for it, there has been 
  talk of this on the list..
  Im sure another type of switchmode could be fitted, voltage's / 
  size / shape permitting. I dont think these command stations are to 
  strange in the PSU department 
  I run my XL-7 via a 110v transformer now, the PSU gets far to hot for 
  my liking on 240v ;o)
  Regards
  Gonz




  #--- In xl7@yahoogroups.com, "groakes2000" <groakes@i...> wrote:
  > 
  > On another note, my continuing problem with Fatal Errors has been 
  > somewhat ameliorated by using a stepdown transformer running at 
  > 110v. Time between failures now stretches out to over 5 hours.... 
  > Which reinforces the thought that maybe my problem is related to a 
  > heat related failure of a component whose tolerances are 
  > rather "fine"....
  > 
  > cheers
  > Greg





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

Re: [xl7] Re: 220 vs. 110 volts

2005-01-09 by Bob S.

Great test and work Jose...thanks for the affirmation.....

Bob
Corona/Riverside, CA
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: José Sáez 
  To: xl7@yahoogroups.com 
  Sent: Sunday, January 09, 2005 8:45 AM
  Subject: Re: [xl7] Re: 220 vs. 110 volts


  All right, i measured temperatures of the surface of the unit day and night after 1 hour of operation at 220 and 110V (i waited for the unit to cool down before taking the next measure), and this are the results:

  220V ---> average Tº: 36º C (96.8 F)

  110V ---> average Tº: 29.6º C (85.28 F)

  The average environment Tº has been around 80-90 Fº these days.

  In conclusion: even when the manual says that the XL-7 unit can be run at 220V, it is advisable to use a stepdown voltage converter in order to reduce heat and add to stability and extend it's working life. 

  I haven't measured the Tº inside the case, but i suppose it could be even higher. Don't want to run the risk...

  Jose

    ----- Original Message ----- 
    From: gonzinigonz 
    To: xl7@...m 
    Sent: Saturday, January 08, 2005 11:08 AM
    Subject: [xl7] Re: 220 vs. 110 volts



    Sounds like another switchmode PSU failing..
    This would explain your errors that you've been having. It doesnt 
    happen without power.
    Its one of the most common faults with any electronic / electrical 
    gadget, lack of correct supply voltages ie failed PSU's
    I have an BSS FDS366 Omnidrive here to repair. Guess what failed 
    swithmode! Sometimes it will start up and be fine. Other times you 
    have to repeatedly turn it on/off to get it to fire up.
    This fault is with the start up circuitry..
    Anyway id start looking for a replacement PSU for it, there has been 
    talk of this on the list..
    Im sure another type of switchmode could be fitted, voltage's / 
    size / shape permitting. I dont think these command stations are to 
    strange in the PSU department 
    I run my XL-7 via a 110v transformer now, the PSU gets far to hot for 
    my liking on 240v ;o)
    Regards
    Gonz




    #--- In xl7@yahoogroups.com, "groakes2000" <groakes@i...> wrote:
    > 
    > On another note, my continuing problem with Fatal Errors has been 
    > somewhat ameliorated by using a stepdown transformer running at 
    > 110v. Time between failures now stretches out to over 5 hours.... 
    > Which reinforces the thought that maybe my problem is related to a 
    > heat related failure of a component whose tolerances are 
    > rather "fine"....
    > 
    > cheers
    > Greg





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



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

Re: 220 vs. 110 volts

2005-01-09 by groakes2000

Thanks Guys -

I borrowed a stepdown of my father-in-law. It has a dial on it 
whereby you can adjust the voltage down as low as 80v. Just for a 
test, I tried running the MP7 at 80v to see what would happen. It 
took a few seconds to power on, but other than that it appeared that 
everything ran normally.....

cheers
Greg


--- In xl7@yahoogroups.com, "Bob S." <tttsystems@e...> wrote:
> Great test and work Jose...thanks for the affirmation.....
> 
> Bob
> Corona/Riverside, CA
>   ----- Original Message ----- 
>   From: José Sáez 
>   To: xl7@yahoogroups.com 
>   Sent: Sunday, January 09, 2005 8:45 AM
>   Subject: Re: [xl7] Re: 220 vs. 110 volts
> 
> 
>   All right, i measured temperatures of the surface of the unit 
day and night after 1 hour of operation at 220 and 110V (i waited 
for the unit to cool down before taking the next measure), and this 
are the results:
> 
>   220V ---> average Tº: 36º C (96.8 F)
> 
>   110V ---> average Tº: 29.6º C (85.28 F)
> 
>   The average environment Tº has been around 80-90 Fº these days.
> 
>   In conclusion: even when the manual says that the XL-7 unit can 
be run at 220V, it is advisable to use a stepdown voltage converter 
in order to reduce heat and add to stability and extend it's working 
life. 
> 
>   I haven't measured the Tº inside the case, but i suppose it 
could be even higher. Don't want to run the risk...
> 
>   Jose
> 
>     ----- Original Message ----- 
>     From: gonzinigonz 
>     To: xl7@yahoogroups.com 
>     Sent: Saturday, January 08, 2005 11:08 AM
>     Subject: [xl7] Re: 220 vs. 110 volts
> 
> 
> 
>     Sounds like another switchmode PSU failing..
>     This would explain your errors that you've been having. It 
doesnt 
>     happen without power.
>     Its one of the most common faults with any electronic / 
electrical 
>     gadget, lack of correct supply voltages ie failed PSU's
>     I have an BSS FDS366 Omnidrive here to repair. Guess what 
failed 
>     swithmode! Sometimes it will start up and be fine. Other times 
you 
>     have to repeatedly turn it on/off to get it to fire up.
>     This fault is with the start up circuitry..
>     Anyway id start looking for a replacement PSU for it, there 
has been 
>     talk of this on the list..
>     Im sure another type of switchmode could be fitted, 
voltage's / 
>     size / shape permitting. I dont think these command stations 
are to 
>     strange in the PSU department 
>     I run my XL-7 via a 110v transformer now, the PSU gets far to 
hot for 
>     my liking on 240v ;o)
>     Regards
>     Gonz
> 
> 
> 
> 
>     #--- In xl7@yahoogroups.com, "groakes2000" <groakes@i...> 
wrote:
>     > 
>     > On another note, my continuing problem with Fatal Errors has 
been 
>     > somewhat ameliorated by using a stepdown transformer running 
at 
>     > 110v. Time between failures now stretches out to over 5 
hours.... 
>     > Which reinforces the thought that maybe my problem is 
related to a 
>     > heat related failure of a component whose tolerances are 
>     > rather "fine"....
>     > 
>     > cheers
>     > Greg
> 
> 
> 
> 
> 
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Re: [xl7] Re: 220 vs. 110 volts

2005-01-10 by José Sáez

I'm not sure if i would try that test again...

A low voltage has less probability to fry your MP7 circuits since the resistance diminishes as voltage goes down. However these are digital devices. A low voltage could change the difference between 0 (no current) and 1 (current). Running digital devices at low voltages has some funny results if you try it with a Casio SK-5; it adds distortion to the sound since some bits pass and some don't.

But i wouldn't risk to do that with a machine whose O.S. is written in flash memory... What if you corrupt the data ? You could end with a machine with a flat EEG...

Jose

I'm NOT going to fix your computer.
........
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: groakes2000 
  To: xl7@yahoogroups.com 
  Sent: Sunday, January 09, 2005 7:04 PM
  Subject: [xl7] Re: 220 vs. 110 volts



  Thanks Guys -

  I borrowed a stepdown of my father-in-law. It has a dial on it 
  whereby you can adjust the voltage down as low as 80v. Just for a 
  test, I tried running the MP7 at 80v to see what would happen. It 
  took a few seconds to power on, but other than that it appeared that 
  everything ran normally.....

  cheers
  Greg


  --- In xl7@yahoogroups.com, "Bob S." <tttsystems@e...> wrote:
  > Great test and work Jose...thanks for the affirmation.....
  > 
  > Bob
  > Corona/Riverside, CA
  >   ----- Original Message ----- 
  >   From: José Sáez 
  >   To: xl7@...m 
  >   Sent: Sunday, January 09, 2005 8:45 AM
  >   Subject: Re: [xl7] Re: 220 vs. 110 volts
  > 
  > 
  >   All right, i measured temperatures of the surface of the unit 
  day and night after 1 hour of operation at 220 and 110V (i waited 
  for the unit to cool down before taking the next measure), and this 
  are the results:
  > 
  >   220V ---> average Tº: 36º C (96.8 F)
  > 
  >   110V ---> average Tº: 29.6º C (85.28 F)
  > 
  >   The average environment Tº has been around 80-90 Fº these days.
  > 
  >   In conclusion: even when the manual says that the XL-7 unit can 
  be run at 220V, it is advisable to use a stepdown voltage converter 
  in order to reduce heat and add to stability and extend it's working 
  life. 
  > 
  >   I haven't measured the Tº inside the case, but i suppose it 
  could be even higher. Don't want to run the risk...
  > 
  >   Jose
  > 
  >     ----- Original Message ----- 
  >     From: gonzinigonz 
  >     To: xl7@yahoogroups.com 
  >     Sent: Saturday, January 08, 2005 11:08 AM
  >     Subject: [xl7] Re: 220 vs. 110 volts
  > 
  > 
  > 
  >     Sounds like another switchmode PSU failing..
  >     This would explain your errors that you've been having. It 
  doesnt 
  >     happen without power.
  >     Its one of the most common faults with any electronic / 
  electrical 
  >     gadget, lack of correct supply voltages ie failed PSU's
  >     I have an BSS FDS366 Omnidrive here to repair. Guess what 
  failed 
  >     swithmode! Sometimes it will start up and be fine. Other times 
  you 
  >     have to repeatedly turn it on/off to get it to fire up.
  >     This fault is with the start up circuitry..
  >     Anyway id start looking for a replacement PSU for it, there 
  has been 
  >     talk of this on the list..
  >     Im sure another type of switchmode could be fitted, 
  voltage's / 
  >     size / shape permitting. I dont think these command stations 
  are to 
  >     strange in the PSU department 
  >     I run my XL-7 via a 110v transformer now, the PSU gets far to 
  hot for 
  >     my liking on 240v ;o)
  >     Regards
  >     Gonz
  > 
  > 
  > 
  > 
  >     #--- In xl7@yahoogroups.com, "groakes2000" <groakes@i...> 
  wrote:
  >     > 
  >     > On another note, my continuing problem with Fatal Errors has 
  been 
  >     > somewhat ameliorated by using a stepdown transformer running 
  at 
  >     > 110v. Time between failures now stretches out to over 5 
  hours.... 
  >     > Which reinforces the thought that maybe my problem is 
  related to a 
  >     > heat related failure of a component whose tolerances are 
  >     > rather "fine"....
  >     > 
  >     > cheers
  >     > Greg
  > 
  > 
  > 
  > 
  > 
  >   -----------------------------------------------------------------
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  > 
  >       a.. To visit your group on the web, go to:
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  >       xl7-unsubscribe@yahoogroups.com
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  of Service. 
  > 
  > 
  > 
  >   [Non-text portions of this message have been removed]
  > 
  > 
  > 
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Re: [xl7] Re: 220 vs. 110 volts

2005-01-10 by Bob S.

Hi Jose

Don't worry, the 110 and 220 volts are regulated down to 5 volts and 12 volts DC regardless of AC input voltage so the digital circuits (and analog circuits) will see the same voltage to run them regardless.  Our major concern here is heat in the unit.

Bob
Corona/Riverside, CA
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: José Sáez 
  To: xl7@yahoogroups.com 
  Sent: Sunday, January 09, 2005 5:11 PM
  Subject: Re: [xl7] Re: 220 vs. 110 volts


  I'm not sure if i would try that test again...

  A low voltage has less probability to fry your MP7 circuits since the resistance diminishes as voltage goes down. However these are digital devices. A low voltage could change the difference between 0 (no current) and 1 (current). Running digital devices at low voltages has some funny results if you try it with a Casio SK-5; it adds distortion to the sound since some bits pass and some don't.

  But i wouldn't risk to do that with a machine whose O.S. is written in flash memory... What if you corrupt the data ? You could end with a machine with a flat EEG...

  Jose

  I'm NOT going to fix your computer.
  ........
    ----- Original Message ----- 
    From: groakes2000 
    To: xl7@yahoogroups.com 
    Sent: Sunday, January 09, 2005 7:04 PM
    Subject: [xl7] Re: 220 vs. 110 volts



    Thanks Guys -

    I borrowed a stepdown of my father-in-law. It has a dial on it 
    whereby you can adjust the voltage down as low as 80v. Just for a 
    test, I tried running the MP7 at 80v to see what would happen. It 
    took a few seconds to power on, but other than that it appeared that 
    everything ran normally.....

    cheers
    Greg


    --- In xl7@yahoogroups.com, "Bob S." <tttsystems@e...> wrote:
    > Great test and work Jose...thanks for the affirmation.....
    > 
    > Bob
    > Corona/Riverside, CA
    >   ----- Original Message ----- 
    >   From: José Sáez 
    >   To: xl7@yahoogroups.com 
    >   Sent: Sunday, January 09, 2005 8:45 AM
    >   Subject: Re: [xl7] Re: 220 vs. 110 volts
    > 
    > 
    >   All right, i measured temperatures of the surface of the unit 
    day and night after 1 hour of operation at 220 and 110V (i waited 
    for the unit to cool down before taking the next measure), and this 
    are the results:
    > 
    >   220V ---> average Tº: 36º C (96.8 F)
    > 
    >   110V ---> average Tº: 29.6º C (85.28 F)
    > 
    >   The average environment Tº has been around 80-90 Fº these days.
    > 
    >   In conclusion: even when the manual says that the XL-7 unit can 
    be run at 220V, it is advisable to use a stepdown voltage converter 
    in order to reduce heat and add to stability and extend it's working 
    life. 
    > 
    >   I haven't measured the Tº inside the case, but i suppose it 
    could be even higher. Don't want to run the risk...
    > 
    >   Jose
    > 
    >     ----- Original Message ----- 
    >     From: gonzinigonz 
    >     To: xl7@yahoogroups.com 
    >     Sent: Saturday, January 08, 2005 11:08 AM
    >     Subject: [xl7] Re: 220 vs. 110 volts
    > 
    > 
    > 
    >     Sounds like another switchmode PSU failing..
    >     This would explain your errors that you've been having. It 
    doesnt 
    >     happen without power.
    >     Its one of the most common faults with any electronic / 
    electrical 
    >     gadget, lack of correct supply voltages ie failed PSU's
    >     I have an BSS FDS366 Omnidrive here to repair. Guess what 
    failed 
    >     swithmode! Sometimes it will start up and be fine. Other times 
    you 
    >     have to repeatedly turn it on/off to get it to fire up.
    >     This fault is with the start up circuitry..
    >     Anyway id start looking for a replacement PSU for it, there 
    has been 
    >     talk of this on the list..
    >     Im sure another type of switchmode could be fitted, 
    voltage's / 
    >     size / shape permitting. I dont think these command stations 
    are to 
    >     strange in the PSU department 
    >     I run my XL-7 via a 110v transformer now, the PSU gets far to 
    hot for 
    >     my liking on 240v ;o)
    >     Regards
    >     Gonz
    > 
    > 
    > 
    > 
    >     #--- In xl7@yahoogroups.com, "groakes2000" <groakes@i...> 
    wrote:
    >     > 
    >     > On another note, my continuing problem with Fatal Errors has 
    been 
    >     > somewhat ameliorated by using a stepdown transformer running 
    at 
    >     > 110v. Time between failures now stretches out to over 5 
    hours.... 
    >     > Which reinforces the thought that maybe my problem is 
    related to a 
    >     > heat related failure of a component whose tolerances are 
    >     > rather "fine"....
    >     > 
    >     > cheers
    >     > Greg
    > 
    > 
    > 
    > 
    > 
    >   -----------------------------------------------------------------
    -------------
    >     Yahoo! Groups Links
    > 
    >       a.. To visit your group on the web, go to:
    >       http://groups.yahoo.com/group/xl7/
    >         
    >       b.. To unsubscribe from this group, send an email to:
    >       xl7-unsubscribe@yahoogroups.com
    >         
    >       c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms 
    of Service. 
    > 
    > 
    > 
    >   [Non-text portions of this message have been removed]
    > 
    > 
    > 
    > -------------------------------------------------------------------
    -----------
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    > 
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Re: [xl7] Re: 220 vs. 110 volts

2005-01-10 by Bob S.

Never mind, I see you are responding to the 80 volts idea.  These voltage converters are usually spec'd at +/-10% so 90 volts is the minimum I would go.  After that, things may fall out of regulation, especial with a little voltage drop (brown out) as is common in power systems....

Bob
Corona/Riverside, CA
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: José Sáez 
  To: xl7@yahoogroups.com 
  Sent: Sunday, January 09, 2005 5:11 PM
  Subject: Re: [xl7] Re: 220 vs. 110 volts


  I'm not sure if i would try that test again...

  A low voltage has less probability to fry your MP7 circuits since the resistance diminishes as voltage goes down. However these are digital devices. A low voltage could change the difference between 0 (no current) and 1 (current). Running digital devices at low voltages has some funny results if you try it with a Casio SK-5; it adds distortion to the sound since some bits pass and some don't.

  But i wouldn't risk to do that with a machine whose O.S. is written in flash memory... What if you corrupt the data ? You could end with a machine with a flat EEG...

  Jose

  I'm NOT going to fix your computer.
  ........
    ----- Original Message ----- 
    From: groakes2000 
    To: xl7@yahoogroups.com 
    Sent: Sunday, January 09, 2005 7:04 PM
    Subject: [xl7] Re: 220 vs. 110 volts



    Thanks Guys -

    I borrowed a stepdown of my father-in-law. It has a dial on it 
    whereby you can adjust the voltage down as low as 80v. Just for a 
    test, I tried running the MP7 at 80v to see what would happen. It 
    took a few seconds to power on, but other than that it appeared that 
    everything ran normally.....

    cheers
    Greg


    --- In xl7@yahoogroups.com, "Bob S." <tttsystems@e...> wrote:
    > Great test and work Jose...thanks for the affirmation.....
    > 
    > Bob
    > Corona/Riverside, CA
    >   ----- Original Message ----- 
    >   From: José Sáez 
    >   To: xl7@yahoogroups.com 
    >   Sent: Sunday, January 09, 2005 8:45 AM
    >   Subject: Re: [xl7] Re: 220 vs. 110 volts
    > 
    > 
    >   All right, i measured temperatures of the surface of the unit 
    day and night after 1 hour of operation at 220 and 110V (i waited 
    for the unit to cool down before taking the next measure), and this 
    are the results:
    > 
    >   220V ---> average Tº: 36º C (96.8 F)
    > 
    >   110V ---> average Tº: 29.6º C (85.28 F)
    > 
    >   The average environment Tº has been around 80-90 Fº these days.
    > 
    >   In conclusion: even when the manual says that the XL-7 unit can 
    be run at 220V, it is advisable to use a stepdown voltage converter 
    in order to reduce heat and add to stability and extend it's working 
    life. 
    > 
    >   I haven't measured the Tº inside the case, but i suppose it 
    could be even higher. Don't want to run the risk...
    > 
    >   Jose
    > 
    >     ----- Original Message ----- 
    >     From: gonzinigonz 
    >     To: xl7@yahoogroups.com 
    >     Sent: Saturday, January 08, 2005 11:08 AM
    >     Subject: [xl7] Re: 220 vs. 110 volts
    > 
    > 
    > 
    >     Sounds like another switchmode PSU failing..
    >     This would explain your errors that you've been having. It 
    doesnt 
    >     happen without power.
    >     Its one of the most common faults with any electronic / 
    electrical 
    >     gadget, lack of correct supply voltages ie failed PSU's
    >     I have an BSS FDS366 Omnidrive here to repair. Guess what 
    failed 
    >     swithmode! Sometimes it will start up and be fine. Other times 
    you 
    >     have to repeatedly turn it on/off to get it to fire up.
    >     This fault is with the start up circuitry..
    >     Anyway id start looking for a replacement PSU for it, there 
    has been 
    >     talk of this on the list..
    >     Im sure another type of switchmode could be fitted, 
    voltage's / 
    >     size / shape permitting. I dont think these command stations 
    are to 
    >     strange in the PSU department 
    >     I run my XL-7 via a 110v transformer now, the PSU gets far to 
    hot for 
    >     my liking on 240v ;o)
    >     Regards
    >     Gonz
    > 
    > 
    > 
    > 
    >     #--- In xl7@yahoogroups.com, "groakes2000" <groakes@i...> 
    wrote:
    >     > 
    >     > On another note, my continuing problem with Fatal Errors has 
    been 
    >     > somewhat ameliorated by using a stepdown transformer running 
    at 
    >     > 110v. Time between failures now stretches out to over 5 
    hours.... 
    >     > Which reinforces the thought that maybe my problem is 
    related to a 
    >     > heat related failure of a component whose tolerances are 
    >     > rather "fine"....
    >     > 
    >     > cheers
    >     > Greg
    > 
    > 
    > 
    > 
    > 
    >   -----------------------------------------------------------------
    -------------
    >     Yahoo! Groups Links
    > 
    >       a.. To visit your group on the web, go to:
    >       http://groups.yahoo.com/group/xl7/
    >         
    >       b.. To unsubscribe from this group, send an email to:
    >       xl7-unsubscribe@yahoogroups.com
    >         
    >       c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms 
    of Service. 
    > 
    > 
    > 
    >   [Non-text portions of this message have been removed]
    > 
    > 
    > 
    > -------------------------------------------------------------------
    -----------
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    > 
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Re: 220 vs. 110 volts

2005-01-10 by groakes2000

I hear what you're saying.... I'll just keep it at 110v. We don't 
have problems with brownouts here - quite the opposite infact. I've 
seen close to 250v coming out of a nominally rated 240v supply....

cheers
Greg

--- In xl7@yahoogroups.com, "Bob S." <tttsystems@e...> wrote:
> Never mind, I see you are responding to the 80 volts idea.  These 
voltage converters are usually spec'd at +/-10% so 90 volts is the 
minimum I would go.  After that, things may fall out of regulation, 
especial with a little voltage drop (brown out) as is common in 
power systems....
> 
> Bob
> Corona/Riverside, CA
> 
>   ----- Original Message ----- 
>   From: José Sáez 
>   To: xl7@yahoogroups.com 
>   Sent: Sunday, January 09, 2005 5:11 PM
>   Subject: Re: [xl7] Re: 220 vs. 110 volts
> 
> 
>   I'm not sure if i would try that test again...
> 
>   A low voltage has less probability to fry your MP7 circuits 
since the resistance diminishes as voltage goes down. However these 
are digital devices. A low voltage could change the difference 
between 0 (no current) and 1 (current). Running digital devices at 
low voltages has some funny results if you try it with a Casio SK-5; 
it adds distortion to the sound since some bits pass and some don't.
> 
>   But i wouldn't risk to do that with a machine whose O.S. is 
written in flash memory... What if you corrupt the data ? You could 
end with a machine with a flat EEG...
> 
>   Jose
> 
>   I'm NOT going to fix your computer.
>   ........
>     ----- Original Message ----- 
>     From: groakes2000 
>     To: xl7@yahoogroups.com 
>     Sent: Sunday, January 09, 2005 7:04 PM
>     Subject: [xl7] Re: 220 vs. 110 volts
> 
> 
> 
>     Thanks Guys -
> 
>     I borrowed a stepdown of my father-in-law. It has a dial on it 
>     whereby you can adjust the voltage down as low as 80v. Just 
for a 
>     test, I tried running the MP7 at 80v to see what would happen. 
It 
>     took a few seconds to power on, but other than that it 
appeared that 
>     everything ran normally.....
> 
>     cheers
>     Greg
> 
> 
>     --- In xl7@yahoogroups.com, "Bob S." <tttsystems@e...> wrote:
>     > Great test and work Jose...thanks for the affirmation.....
>     > 
>     > Bob
>     > Corona/Riverside, CA
>     >   ----- Original Message ----- 
>     >   From: José Sáez 
>     >   To: xl7@yahoogroups.com 
>     >   Sent: Sunday, January 09, 2005 8:45 AM
>     >   Subject: Re: [xl7] Re: 220 vs. 110 volts
>     > 
>     > 
>     >   All right, i measured temperatures of the surface of the 
unit 
>     day and night after 1 hour of operation at 220 and 110V (i 
waited 
>     for the unit to cool down before taking the next measure), and 
this 
>     are the results:
>     > 
>     >   220V ---> average Tº: 36º C (96.8 F)
>     > 
>     >   110V ---> average Tº: 29.6º C (85.28 F)
>     > 
>     >   The average environment Tº has been around 80-90 Fº these 
days.
>     > 
>     >   In conclusion: even when the manual says that the XL-7 
unit can 
>     be run at 220V, it is advisable to use a stepdown voltage 
converter 
>     in order to reduce heat and add to stability and extend it's 
working 
>     life. 
>     > 
>     >   I haven't measured the Tº inside the case, but i suppose 
it 
>     could be even higher. Don't want to run the risk...
>     > 
>     >   Jose
>     > 
>     >     ----- Original Message ----- 
>     >     From: gonzinigonz 
>     >     To: xl7@yahoogroups.com 
>     >     Sent: Saturday, January 08, 2005 11:08 AM
>     >     Subject: [xl7] Re: 220 vs. 110 volts
>     > 
>     > 
>     > 
>     >     Sounds like another switchmode PSU failing..
>     >     This would explain your errors that you've been having. 
It 
>     doesnt 
>     >     happen without power.
>     >     Its one of the most common faults with any electronic / 
>     electrical 
>     >     gadget, lack of correct supply voltages ie failed PSU's
>     >     I have an BSS FDS366 Omnidrive here to repair. Guess 
what 
>     failed 
>     >     swithmode! Sometimes it will start up and be fine. Other 
times 
>     you 
>     >     have to repeatedly turn it on/off to get it to fire up.
>     >     This fault is with the start up circuitry..
>     >     Anyway id start looking for a replacement PSU for it, 
there 
>     has been 
>     >     talk of this on the list..
>     >     Im sure another type of switchmode could be fitted, 
>     voltage's / 
>     >     size / shape permitting. I dont think these command 
stations 
>     are to 
>     >     strange in the PSU department 
>     >     I run my XL-7 via a 110v transformer now, the PSU gets 
far to 
>     hot for 
>     >     my liking on 240v ;o)
>     >     Regards
>     >     Gonz
>     > 
>     > 
>     > 
>     > 
>     >     #--- In xl7@yahoogroups.com, "groakes2000" 
<groakes@i...> 
>     wrote:
>     >     > 
>     >     > On another note, my continuing problem with Fatal 
Errors has 
>     been 
>     >     > somewhat ameliorated by using a stepdown transformer 
running 
>     at 
>     >     > 110v. Time between failures now stretches out to over 
5 
>     hours.... 
>     >     > Which reinforces the thought that maybe my problem is 
>     related to a 
>     >     > heat related failure of a component whose tolerances 
are 
>     >     > rather "fine"....
>     >     > 
>     >     > cheers
>     >     > Greg
>     > 
>     > 
>     > 
>     > 
>     > 
>     >   -----------------------------------------------------------
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Terms 
>     of Service. 
>     > 
>     > 
>     > 
>     >   [Non-text portions of this message have been removed]
>     > 
>     > 
>     > 
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>     > [Non-text portions of this message have been removed]
> 
> 
> 
> 
> 
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of Service. 
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> 
> 
>   [Non-text portions of this message have been removed]
> 
> 
> 
> -------------------------------------------------------------------
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>     a.. To visit your group on the web, go to:
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> 
> 
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