Re: Kawai K5 upgrade ROMs

Howdy,

 You say to diconnect then reconnect the battery? I
forgot. The rest of your tips, I will try, and THANK
YOU for this valuable info. i will do these tests and
get back to you. THANX AGAIN!!!!
Rig


--- Antoine Deschênes <antdes45-FFYn/[email protected]> wrote:

> If the battery doesn't work, you'll just lose your
> sounds every times
> you start the synth. The ROM can't be damaged from
> normal use. I'd try
> to reseat(disconnect, connect) the cables related to
> the switch and
> wheels if I was you.
> 
> To put back sounds you'll need the wheel to work :
> You have to go in
> the midi menu to enable SysEx receiving and
> transmission, which is
> sadly impossible for you right now.
> 
> But if the buttons work and not the wheel, the
> interface should still
> work, unless you have an hardware problem
> somewhere...
> 
> OK, I looked at the schematic(All the following is
> about the MI-003
> circuit board). The two wheel encoder signals pass
> through three 74HC
> logic ICs to end in the same data lines as the
> LCD(The CPU seems to
> use the same data port for both) If your LCD works,
> the problem is
> more likely to be situated with the logic(Two
> 74HC365 and a 74HC74) or
> the wheel encoder itself.
> 
> The encoder signals pass through R10 and R8 to go in
> U9, then U12 and
> U7. Maybe you could try to see if the signal
> actually gets to R8 and
> R10?
> In my case, I briefly get some pulses on R8 and R10
> while I turn the
> wheel.(The encoder uses pulse switches)
> 
> And now, on the MI-008 board, the two bottom pins
> should feed 5v to
> the encoder, and the top ones just send pulses when
> it's turning.
> 
> 2007/5/26, bill bigrig <billbigrig-/[email protected]>:
> > Howdy,
> >
> >  Yes,I've openedthe synth. The connections around
> the
> > wheel area look good upon cursory examination.
> i'll
> > have to inspect more closeley. How do I get sounds
> > back into the machine? It only has one and every
> sound
> > on the disply is identical. It has one dead key
> and 4
> > slugish ones, but I don't think I'l have any
> problem
> > fixing that. My main issue is the wheel and lack
> of
> > mulyiple sounds. Plus, I would like to upgrade the
> > system to a later version just for the heck of it.
> I
> > don't know if the lithium battery went dead and
> was
> > relaced or not, but the present one is a solid3+
> volts
> > and looks faily new. Any chance the battery died
> and
> > lost all the firmware/ THANX!!!
> > Rig
> >
> >
> > --- Antoine Deschênes <antdes45-FFYn/[email protected]> wrote:
> >
> > > Well, the K5SINGLE thing is normal if the synth
> was
> > > reset by the seller
> > > or you, but not the dead wheel.
> > >
> > > I'm not sure the EPROM will help since the wheel
> > > just doesn't work in
> > > your case, which is a problem I never saw with
> V1.0
> > > K5s, and you even
> > > said that you reset the synth. Have you already
> > > opened the synth(There
> > > are two screws going in the cover on each sides
> that
> > > need to be
> > > removed)? Could you make sure that the wheel is
> well
> > > connected to the
> > > board at the right? Some solders and wires could
> be
> > > cracked/broken too,
> > > the one under the LCD panel for example.
> > >
> > > Antoine
> > >
> > > bill bigrig a écrit :
> > > > Howdy,
> > > >
> > > >  As you probably already know, my k5 came DOA.
> It
> > > only
> > > > displays k5single on ALL the presets and the
> > > whirly
> > > > wheel does nothing when trying to alter midi
> > > stuff.
> > > > The battery is a healthy 3.05 volts, but it
> only
> > > plays
> > > > one sound. I think the place to start is with
> a
> > > new
> > > > eprom. Please let me know about cost and
> payment
> > > > method. Thanx
> > > > Rig
> > > >
> > > >
> > > > --- antdes45 <antdes45-FFYn/[email protected]> wrote:
> > > >
> > > >
> > > >> Hi everyone, new updates about the ROM
> upgrades.
> > > >>
> > > >> I got the chip last week and successfully
> > > programmed
> > > >> one of them a few
> > > >> minutes ago. It's in one of my K5s and it's
> > > working.
> > > >> (Which means I'll
> > > >> be able to order all the chips shortly) Any
> new
> > > ROM
> > > >> requests are still
> > > >> accepted.
> > > >>
> > > >> The other chip I ordered for my 2nd K5, for
> some
> > > >> reason, got killed by
> > > >> the programmer, burning two transistors on
> the
> > > >> programmer itself at
> > > >> the same time. I suspect that it's caused by
> the
> > > >> computer that I
> > > >> initially tried to program the chip with, it
> was
> > > >> probably sending
> > > >> strange commands on the parallel port due to
> the
> > > >> crippled HP printer
> > > >> drivers. All I know is that I will not try
> > > >> programming ROMs anymore on
> > > >> that computer.
> > > >>
> > > >> Antoine, Moderator.
> > > >>
> > >
> >
> >
> >
> >
> >
>
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> >
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> >
> >
> >
> >
> 
> 
> -- 
> Antoine Deschênes
> 



       
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