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Oct 10, 2005 | 07:06 AM

Nico

Thread Starter

Racer

Joined: Oct 2005

Posts: 405

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From: 1984 crossfire, Alhaurin de la Torre Malaga, Spain

display panel

I just bough my very first 1987 Corvette wich I am restoring now The backlighting of the LCD panels does not work, the text in the centre panel does work, so the reostat is fine. Where can I test if voltage is present and please provide me with some tips how to get the display panels out for repair.
The (hard to read without light) velocity meter gives a max of 120 kM/hr (in meteric mode) wich seems quite slow for a corvette. Does this switch over to an other scale or do I have only digital info for higher velocities?
Love to hear from you, regards
Nico

Oct 10, 2005 | 08:55 AM

rick lambert

Le Mans Master

Joined: Oct 2003

Posts: 6,130

Likes: 2

From: seattle WA

this is a great site to help you-http://www.corvettedashclusterservice.com/ucando%20process1.html

You might also want to purchase Gordon Killebrews book on digital dashes, it has some very good info and it's only about $30.

Good luck

Oct 10, 2005 | 11:14 AM

scorp508

Team Owner

Joined: Mar 2000

Posts: 83,383

Likes: 87

From: Boston, MA

Quote:

Originally Posted by Nico

Try this first. Remove the plastic bezel and then you will see 4 small aluminum covers. Behind each of those is a bulb. You can pop these covers off to see if the bulb is blown out. These bulbs provide all the backlighting for the display.

Quote:

The (hard to read without light) velocity meter gives a max of 120 kM/hr (in meteric mode) wich seems quite slow for a corvette. Does this switch over to an other scale or do I have only digital info for higher velocities?

Yep you guessed it. After 120 kM/hr (85 MPH) you just have the digital numbers for anything higher.

Oct 11, 2005 | 03:37 AM

Nico

Thread Starter

Racer

Joined: Oct 2005

Posts: 405

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From: 1984 crossfire, Alhaurin de la Torre Malaga, Spain

Quote:

Originally Posted by rick lambert

Thanks a lot. I did take the display unit out (after an hour of carefull investigations how) because I did read that the solder joints of the connection between the baords sometimes come loose. So I resoldered. (my job is electronics, so that was no problem). If I ever have a problem with the unit, I follow your advice to buy the book for sure.
Thanks a lot,
Nico

Oct 11, 2005 | 03:58 AM

Nico

Thread Starter

Racer

Joined: Oct 2005

Posts: 405

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From: 1984 crossfire, Alhaurin de la Torre Malaga, Spain

Quote:

Originally Posted by scorp508

You are right on target. Thanks a lot. I did take the metal cover off and found the bulbs. All four bad. I could not buy this type here in Spain. There are correct bulbs available for lighting systems in houses, but they are 10 Watts minimum. That is for sure too much and the bezzel will melt I suppose. So I bought the RS type 577-516. When you spread the pins a mm, they fit but are quite dim. But better than nothing until I have the original ones (15$ seems quite expensive to me for a light bulb)
After repair I did take the unit out, see my other reply.
Kind regards, Nico

Oct 11, 2005 | 06:34 AM

65Z01

Team Owner

Joined: Dec 2000

Posts: 90,675

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From: SE NY

Cruise-In II Veteran

Welcome to the Forum and congrats on your new '87 Vette.

Now that you have the digital readout working you can go to 280 kph.

Oct 11, 2005 | 06:50 AM

_twisted_

Safety Car

Joined: Nov 2004

Posts: 4,991

Likes: 5

From: The Pines South Jersey

Nico, you can get a 1/2" socket and use 194 bulbs, instead of the 882 halogens. I dont have a part # for the socket, but they can be found.

Oct 11, 2005 | 08:37 AM

AGENT 86

Team Owner

Joined: Jan 2003

Posts: 20,297

Likes: 240

From: Summerland B.C. Canada

Here's some info from my 86 manual. Save it to your hard drive.
http://members.shaw.ca/dankai/Instru...%20Cluster.pdf
Congrats and welcome aboard Nico