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Need schematic for negative mode display with ks0108

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Post subject: Need schematic for negative mode display with ks0108

Posted: Sun May 09, 2004 14:22

Joined: Sun May 09, 2004 14:11
Posts: 2

Hi guys and sorry for my English, but I'm Italian and I know my English is not so good... :wink:

Well the problem is: I have this display it is a blue graphic negative mode display build in Dc/dc...For wiring I use this schematic but it doesn't work...I can't see anything, only the blu light and I can't regulate the contrast...

Please Help Help Help :wink:

Thanks everyone

Byez

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Henri

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Posted: Wed May 12, 2004 23:00

Joined: Sun May 05, 2002 22:05
Posts: 2063
Location: Lappeenranta, Finland

If you can't adjust the contrast you have something wrong with your contrast connections. So you have the middle pin of potentiometer connected to the Vo and the outer pins at GND and Vout ? You could measure what you get out of Vout.

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Post subject:

Posted: Thu May 13, 2004 12:11

Joined: Sun May 09, 2004 14:11
Posts: 2

Hi Henry
The potentiometer are connected like in your shematic

This evening try to measure the Vout...
Thanks

Byez

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