VOGONS

Wiring up Turbo LCD display

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First post, by Hezus

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I've got this LCD display (note that the LCD display did NOT come with the motherboard or AT case that I'm currently using!)

BTUv960.jpg

The problem I'm facing is that my motherboard has a 2-pin header for the Turbo Switch and a 2-pin header for the Turbo LED. As you can see from the diagram the LCD Display expects a 3-pin IN connector with the labels 'TGN'. Is there a way to wire this up to my motherboard? I've found some threads about this, but none with a proper solution how to go about this.

I expected T (turbo?) to be +, G (ground?) to be - and N (normal?) to be + but I also see L (low), C (com), H (high) so maybe this requires some logic from the motherboard?

I do not intent to use the Turbo LED, so maybe there's a way to abuse that to signal the LCD display?

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Reply 1 of 4, by PARKE

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The turbo function on the motherboard has only two phases: turbo on or turbo off and only needs two wires coming from the turbo button. The display has three connections that correspond with the turbo button's 'double action': when the turbo button is pressed in the T is connected with Ground and when the turbo button is pressed out the N is connected with Ground. The original turbo wiring was designed so that you could synchronize the [T+G] or the [N+G] with the motherboard.

The attachment turbocon.jpg is no longer available

Reply 2 of 4, by weedeewee

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Check your turbo switch.
if there's less than 6 pins (two with wires attached), you'll need a new switch.
a DPDT switch is needed.

if there's 6 pins, of which two have wires, you'll need a 3 wire cable to solder on and connect to the turbo indicator display.

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Reply 3 of 4, by Hezus

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PARKE wrote on 2021-09-26, 12:28:

The turbo function on the motherboard has only two phases: turbo on or turbo off and only needs two wires coming from the turbo button. The display has three connections that correspond with the turbo button's 'double action': when the turbo button is pressed in the T is connected with Ground and when the turbo button is pressed out the N is connected with Ground. The original turbo wiring was designed so that you could synchronize the [T+G] or the [N+G] with the motherboard.turbocon.jpg

weedeewee wrote on 2021-09-26, 12:31:
Check your turbo switch. if there's less than 6 pins (two with wires attached), you'll need a new switch. a DPDT switch is nee […]
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Check your turbo switch.
if there's less than 6 pins (two with wires attached), you'll need a new switch.
a DPDT switch is needed.

if there's 6 pins, of which two have wires, you'll need a 3 wire cable to solder on and connect to the turbo indicator display.

Thanks for the info! So is this the correct way to wire it?

pF1gb4W.png

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Reply 4 of 4, by weedeewee

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Hezus wrote on 2021-09-26, 13:14:
Thanks for the info! So is this the correct way to wire it? […]
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Thanks for the info! So is this the correct way to wire it?

pF1gb4W.png

Yes

Right to repair is fundamental. You own it, you're allowed to fix it.
How To Ask Questions The Smart Way
Do not ask Why !
https://www.vogonswiki.com/index.php/Serial_port

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