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Emax

Index last updated: 2026-04-28 23:23 UTC

Message

Re: [emax] Re: More Strange Symptoms

2007-04-27 by RICARDO JUAREZ

Yep!,I still need a method for verify the 5v of the
digital, Why we need to measure VR1?????, and how you
do that????
M\ufffds Saludos
Ricardo

--- ted Summers <djtbs1@...> wrote:

> That IC is still available (just google it- someone
> will sell you a  
> single one- may have to do a bit of email to get it)
> and one bad IC  
> can cause others ICs to heat up as well....
> 
> But I would still verify the Power Supply first.....
> 
> Thx,
> Ted
> 
> On Apr 26, 2007, at 6:28 AM, RICARDO JUAREZ wrote:
> 
> > Hi!:
> > Here\ufffds what a found: IC 14(NS32008) gets very hot,
> IC
> > 14 , 9 and IC 17 gets hot, also when you play the
> > keyboard there\ufffds is sound, not in scale,
> additionally
> > as you play, the menu\ufffds system changes going from
> > everything to everything
> (master---traspose---change
> > patches---select, etc)even performs a sequence on
> the
> > diskette and blocks the keyboard....tottally a
> mess.
> > When you push a button in the panel the system
> crash
> > and no sound and changes, hanging the last
> > note.....despite all this stuff, the patches
> sounds
> > very good. Really there\ufffds some processor not doing
> > well its job, i don\ufffdt think i can find one of
> these
> > IC\ufffds nowadays, is there any method for reseting
> this
> > devices.
> > Saludos
> > ricardo
> >
> > --- Wayne Griffin <ingsoc_1979@...> wrote:
> >
> > > What are the IC #'s on the chips? What do the
> chips
> > > say on them??? Did you also reseat *everything*,
> > > todos
> > > on the second board, attached to the
> motherboard?
> > > [w]
> > >
> > > --- RICARDO JUAREZ <cheju_99@...> wrote:
> > >
> > > > Wayne:
> > > > Could you be more specific about the test of
> the
> > > 5V
> > > > digital power ?, because last night i worked
> on
> > > the
> > > > machine, I check de purple, orange wire,
> > > > etcetera....
> > > > +12`s Volts +10\ufffds ,s volts , the yellow wire
> marks
> > > > +4,92 volts,....... but i cannot locate the
> pin 3
> > > of
> > > > VR1 and check +5Volts, there\ufffds a green wire
> with
> > > no
> > > > power. I made also some reseating...no
> success, I
> > > > found 3 IC`s near the Eprom heated but still
> you
> > > can
> > > > touch it with your finger not so hot..., so i
> > > > suspect
> > > > there`s something wrong in that zone. Is some
> > > other
> > > > thing to do?????
> > > >
> > > > greetings
> > > > Ricardo
> > > >
> > > >
> > > >
> > > > --- Wayne Griffin <ingsoc_1979@...>
> wrote:
> > > >
> > > > > Where are you located? [w]
> > > > >
> > > > > --- RICARDO JUAREZ <cheju_99@...>
> wrote:
> > > > >
> > > > > > Yep! the problem is i don\ufffdt have any
> > > schematics
> > > > > nor
> > > > > > part model for the eprom, even if it\ufffds
> broken
> > > > how
> > > > > > can
> > > > > > i Reload the data, (i dont know anything
> about
> > > > > > Eproms)... my last hope of failure is the
> > > power
> > > > > > supply..., otherwise my emax is just a
> piece
> > > of
> > > > > > garbage to be sell by pieces..
> > > > > > a dissapointed...
> > > > > > ricki
> > > > > >
> > > > > >
> > > > > > --- Wayne Griffin <ingsoc_1979@...>
> > > wrote:
> > > > > >
> > > > > > > You need to have a known good OS disk
> and
> > > > known
> > > > > > good
> > > > > > > EPROM. If you know anyone with a reader,
> > > it's
> > > > > time
> > > > > > > to
> > > > > > > pop yours out and verify it. Have you
> looked
> > > > at
> > > > > > > power
> > > > > > > supply yet? [w]
> > > > > > >
> > > > > > >
> > > > > > > --- cheju_99 <cheju_99@...> wrote:
> > > > > > >
> > > > > > > > Hi!:
> > > > > > > > Finally i can make an bootable image
> of
> > > the
> > > > > OS,
> > > > > > > but
> > > > > > > > here\ufffds new
> > > > > > > > symptoms: the diskette is read but at
> some
> > > > > > point,
> > > > > > > > the drive stops
> > > > > > > > the leds lights of the panel turns on,
> and
> > > > > then
> > > > > > > > turns off, and again
> > > > > > > > and again...in a continuous loop.
> What\ufffds
> > > > > > happening
> > > > > > > > maybe the diskette
> > > > > > > > is wrong, i dont think so, because the
> old
> > > > > > dikette
> > > > > > > > is loaded.
> > > > > > > > greetings
> > > > > > > > Rick
> > > > > > > >
> > > > > > > >
> > > > > > > > --- In emax@yahoogroups.com, "Brooks
> > > Mosher"
> > > > > > > > <brooksmosher@...> wrote:
> > > > > > > > >
> > > > > > > > > maybe a power supply issue?
> > > > > > > > >
> > > > > > > > > actually i have no idea what it
> could
> > > > be...
> > > > > > i'm
> > > > > > > > sort of a newbie
> > > > > > > > here.
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > On 4/23/07, cheju_99 <cheju_99@...>
> > > wrote:
> > > > > > > > > >
> > > > > > > > > > Hi i\ufffdm new in the emax
> > > stuff..recently
> > > > I
> > > > > > > > bought an Emax, serial
> > > > > > > > 1000,
> > > > > > > > > > PCb rev 2, Disk Drive working OK.
> The
> > > > > > Symtoms:
> > > > > > > I
> > > > > > > > push the ON
> > > > > > > > Button,
> > > > > > > > > > then it started going up,
> everything
> > > > looks
> > > > > > > goes
> > > > > > > > great "Loading
> > > > > > > > > > Operating System" etc Etc...then
> > > Loading
> > > > > > Bank,
> > > > > > > > and finally
> > > > > > > > showing the
> > > > > > > > > > patch on the screen, I began to
> play a
> > > > > > > note...a
> 
=== message truncated ===


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