Matrix Orbital Corp

Posted: **Fri Feb 01, 2002 8:57 am**

I'm going to buy the LCD2041. I don't want to build it in my pc so I'm thinking of using pin 9 for the voltage. Are there reasons for not doing that? (Is it bad for the motherboard or something else?)

Posted: **Fri Feb 01, 2002 9:24 am**

Power PC application we always recomend using a Wideo Voltage unit. Mostly because we don't trust a computer power supply that much. If there is ever a voltage spike (anything over 5.25Vdc) the LCD will stop working. I have seen this happen only one or twice but it can happen. If you use pin 9 on the DB-9 cable then you can only input +5Vdc into the LCD even if it's a Wide Voltage unit because it will by pass the voltage regulator circuit.

Posted: **Fri Feb 01, 2002 12:28 pm**

Please, both of you read the note in the FAQ about this.

Posted: **Fri Feb 01, 2002 12:33 pm**

On 2002-02-01 09:24, Henry wrote:
Power PC application we always recomend using a Wideo Voltage unit. Mostly because we don't trust a computer power supply that much. If there is ever a voltage spike (anything over 5.25Vdc) the LCD will stop working. I have seen this happen only one or twice but it can happen. If you use pin 9 on the DB-9 cable then you can only input +5Vdc into the LCD even if it's a Wide Voltage unit because it will by pass the voltage regulator circuit.

heheheh henry

Posted: **Fri Feb 01, 2002 12:35 pm**

http://www.matrixorbital.com/help.htm#q2

Posted: **Fri Feb 01, 2002 12:39 pm**

henry, add one to your fried count

Posted: **Fri Feb 01, 2002 12:50 pm**

I seen the FAQ about this. But I was just wondering if that was the only negative thing about it. Thx for the reply!

Matrix Orbital Corp

Is there something wrong with pin 9?