If switched off (yes via the power reset button rather than pulling the
power plug), left some time and then powered up.
It plays dumb, display echos the key presses and midi functions normally but
no sound out of the built in speakers unless you wake it up going into demo
mode for a bit. Nothing wrong with mute/standby functions of the main amp.
No flash memory card used with it but are there switch contacts in the card
slot that should be open or closed and falsely registering a card is in the
slot?

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/

N Cook wrote:
If switched off (yes via the power reset button rather than pulling the
power plug), left some time and then powered up.
It plays dumb, display echos the key presses and midi functions normally but
no sound out of the built in speakers unless you wake it up going into demo
mode for a bit. Nothing wrong with mute/standby functions of the main amp.
No flash memory card used with it but are there switch contacts in the card
slot that should be open or closed and falsely registering a card is in the
slot?

There might be a micro reset sequence which will get everything back to
factory settings, you need to search the interweb thing

Ron(UK)

Ron(UK) wrote in message
...
N Cook wrote:
If switched off (yes via the power reset button rather than pulling the
power plug), left some time and then powered up.
It plays dumb, display echos the key presses and midi functions normally
but
no sound out of the built in speakers unless you wake it up going into
demo
mode for a bit. Nothing wrong with mute/standby functions of the main
amp.
No flash memory card used with it but are there switch contacts in the
card
slot that should be open or closed and falsely registering a card is in
the
slot?

There might be a micro reset sequence which will get everything back to
factory settings, you need to search the interweb thing

Ron(UK)

I downloaded the 150 page user manual
possibly on powering down "local off" setting for midi use is stored in the
memory.
Seems no access via the keybpoard/keypad/buttons etc to alter this, must be
via an external pc/midi link.
But just pressing "piano setting" resets a number of things , one of which
is setting local to ON (if OFF), in the troubleshooting guide , if you have
a silent keyboard.

This Keyboard not used via MIDI
But there must be some powerdown (or power up ) fault creating this random
occurance (left unpowered overnight and powered up perfectly ok, despite
deliberately switching off at the mains rather than powering down via the
power on/off button).
No obvious on-board battery , although overlay symbol and unpopulted section
of the main board has this for some other model type.

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/

On 3ÔÂ28ÈÕ, ÉÏÎç12ʱ35·Ö, "N Cook" wrote:
If switched off (yes via the power reset button rather than pulling the
power plug), left some time and then powered up.
It plays dumb, display echos the key presses and midi functions normally but
no sound out of the built in speakers unless you wake it up going into demo
mode for a bit. Nothing wrong with mute/standby functions of the main amp.
No flash memory card used with it but are there switch contacts in the card
slot that should be open or closed and falsely registering a card is in the
slot?

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list onhttp://home..graffiti.net/diverse:graffiti.net/


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