Core voltage question

MIDIfication
1

Hi,

Could someone advise me on the voltage range to be expected unde load on the core module please?

I have checked some of the core module test points and get 3.41v under operating conditions.

I do have 5v at the DIN module connections.

Is this within an acceptable range?

Perhaps I should mention I am using a 1500ma supply at 9v.

Arnak

2

Sorry Arnak can you be more descriptive? 3.41V would be too low at most points (the correct voltages are listed on ucapps.de) but could be normal at some of them.

3

Hi Stryd_one,

Thanks for that, I’ll check out ucapps again, it’s probably a bad joint on the core board.

Arnak

4

I am using a 1500ma supply at 9v.

Wow!

It’s off topic but :

Take care and dont short circuit anything, 1500mA is pretty much current :wink:

(200mA should be far enough for most mb purpose, even with a backlighted lcd screen)

5

Hi Bill,

Yes, good point,I’ll be careful.

The large supply is for the further code modules (3) and DIN and DOUT boards that will need to be driven, about 18 in all!!

Arnak