HX3 Expander power supply

[yubby]

Hello all,
I'm writing from Boston, MA. I have just received my new HX3 Expander Plexi today and am really looking forward to using it.
But I now realize that the power adapters I have at home may not be compatible with the specifications listed on the website:

US style, local, "input 117 to 240V, output rating 9V / 800mA, plus on center".

The back of the HX3 Expander module, however, says "DC IN 9-12 V".

Is there any flexibility with the power adapter voltage and/or ma level with the HX3 expander or do I need to match 9V / 800 ma exactly?

I have 12V, 2.08 amp, 12v 1000ma, and a few others.
I may have to wait a few days to purchase a 9V one at my local music or electronics shop as we have a major snowstorm arriving tonight and all travel on the roads is banned until further notice.

Regards,
Dave Osoff

[dvmwest]

Dear Dave,

I have 12V, 2.08 amp, 12v 1000ma, and a few others.
I may have to wait a few days to purchase a 9V one at my local music or electronics shop as we have a major snowstorm arriving tonight and all travel on the roads is banned until further notice.

http://wiki.keyboardpartner.de/index.ph ... ser_Manual

12V with > 800mA are OK, 1000 ma 2amp are more as 800 that is OK.

by the snowstorm, Could you hope that you don't lost the power.

Michael

[happyfreddy]

hi
Nevertheless what Power supply will be used.
If the extern DC Power supply on HX 3 is used
REGARD THE POLARITY OF USED POWERSUPPLY CONNECTOR

The minimum current to supply is 800mA , so if a 1000mA type is used it´s ok
Important:
If any extern DC Power is used the regulator IC 7805 MUST BE COOLED by metal plate like the backside of expander housing !!!
This regulator chip 7805 needs 3 volts itself to operate correctly so the DC voltage of 9 Volt will be optimal and best chose
The more input voltage the more heat will be produced and must be cooled by metal plate.