C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

89 Digital dash problem

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Old Jun 20, 2014 | 08:49 PM
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Default 89 Digital dash problem

The dash all lights up ok at first but after driving it a short time, the right side goes out. Not a backlight issue.

Any ideas?
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Old Jun 21, 2014 | 02:36 AM
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"goes out" is not very specific. Does the tach stop working? Does it go dark?

If it goes dark then that is a back light issue.

If it stops working then the connections between the two PC boards in the dash might have problems. The tach filter could be bad. The pink elastomer connections between the PC board and the LCD might be dirty.
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Old Jun 21, 2014 | 05:36 AM
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Hi
As Cliff said is it one part of the dash that goes dark or the whole lot?
The right side is the tach display, does the speedo still illuminate?

The connector between the two boards in the display can go bad, below is a listing for that part.

http://www.ebay.com/itm/121365222514...84.m1438.l2649

The photocell that controls the back light is here.

http://www.ebay.com/itm/121365222876...84.m1438.l2649

Dash cluster back light bulbs here.

http://www.ebay.com/itm/Xenon-Bulbs-...item19ef316cd8

Contact Batee for help have a look on the webpage, he has a rebuild service. http://www.batee.com/
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