Hi Arturo,
No this is not right at all. Are you sure when you connected the dummy load
to the PSU you didn¹t short out the pins? This will take out the 5v rail and
probably all the lights with it! A tip for you; if you have an old PC in the
garage or loft go and find it. Take out the speaker, wire and the connector
attached to it. Cut the wire off near the end of the connector and solder
the 56K resistor to it. The connector fits perfectly in the socket!
The reset calibration is basically determining how long the reset line will
remain active low after you have switched on. The trick is to connect the
resistor, with the power off, switch on and then adjust VR1 until all the
LEDs come on. Then rotate back a bit until they just switch off. Disconnect
the resistor and you are all set.
The manual is pretty badly written, but I suspect it is translated rather
poorly from the engineer¹s native Japanese. This was a source of much fun
for me in the seventies when they started flooding the market with their
electronics and accompanying manuals! No disrespect to them as pictorial to
roman character translation must be mind-bendingly difficult!
Cheers,
Andy
On 03/12/2010 07:30, "Arturo B" <arturo00@hotmail.com> wrote:
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> Hey group. I've started on the calibration of my first board.However, I seemed
> to have lost the functionality of the entire Key Assign Mode section. None of
> the LEDs turn on and they don't seem to respond at all. The Programmer and the
> arpeggio speed control works just fine. Is this normal? I noticed this after
> having trouble connecting the 56KOhm resistor on the KLM-376 board and
> fiddling with it a bit. I assumed that this was somehow the result of
> calibrating the reset circuit, but now I'm not so sure. Any insight would be
> great cos I'm at a loss.
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> I might also add that the Service Manual directions for this calibration are
> the most confusing and vague instructions I have EVER encountered. :(
>
> Arturo.....
>
> ============================================
> Arturo Brisindi
>
> [Musics]
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> mydadvsyours.com | soundcloud.com/arturo00
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> galleryrecording.weebly.com | arturo00.weebly.com
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