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03-21-2024
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#1 |
 Join Date: Apr 2004
Location: Atlanta, GA
Posts: 2,169
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Low level LCD Display 90s
In the latest HOB Marc has a write up about adding a 22k Ohm resister to help low lighting on the 90's .
Can a 91 set-up be used in replacement of the 90 to resolve this?
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Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold |
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03-21-2024
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#2 | |
 
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,156
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Re: Low level LCD Display 90s
Quote:
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978 |
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03-22-2024
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#3 |
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Join Date: Apr 2004
Location: Atlanta, GA
Posts: 2,169
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Re: Low level LCD Display 90s
Did you do everything or only the gauges button and DIC section? as this this the section with the light sensor.
__________________
Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold |
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03-22-2024
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#4 | |
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Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,156
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Re: Low level LCD Display 90s
Quote:
__________________
1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978 |
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03-22-2024
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#5 |
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Join Date: Apr 2004
Location: Atlanta, GA
Posts: 2,169
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Re: Low level LCD Display 90s
Jeff I think your miss-understanding what I'm asking. HOB issue -64 page 35 Marc H has a write up on adding a 22k Ohm resistor to increase the low level display lighting on the 90. In the 91 this issue was fixed. I just wondered if the section that has the switches and DIC could be interchanged 90 to a 91? to resolve the low level lighting vs soldering in a resistor?
__________________
Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold |
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03-22-2024
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#6 |
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Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,156
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Re: Low level LCD Display 90s
90 and 91 switches are the same, circuits are the same. The change is in the CCM form the OEM standpoint. The resistor changes the voltage to act like the later years. So using a 91 switch assembly in the 90 will make no difference. Either way you need the resistor mod, in the case
__________________
1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978 |
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03-23-2024
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#7 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,683
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Re: Low level LCD Display 90s
Jeff,
Have u been able to switch LED display contrast to white on black? |
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03-23-2024
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#8 |
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Join Date: Apr 2004
Location: Atlanta, GA
Posts: 2,169
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Re: Low level LCD Display 90s
Thanks Jeff.
__________________
Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold |
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03-23-2024
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#9 | |
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Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,156
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Re: Low level LCD Display 90s
Quote:
__________________
1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978 |
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03-23-2024
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#10 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,683
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Re: Low level LCD Display 90s
Center. Speedo/Fuel
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Linear Mode
