[Vwdiesel] 1982 mk1 instrument cluster LED specification and/or replacements

[Mark Shepherd]

I don't think there is a resistance spec for the bank of LED's.
The test by VW was with the LED's out and powered up on a go no go spec. 

The flashing LED for oil pressure acoustic alarm must flash at ignition on, but engine not running, then start engine up and LED must blink when blue black 0.3bar 
sensor wire earthed out, but no warning alarm present, below 2000rpm. Over 2000rpm disconnecting yellow wire,to the 1.8bar sensor but not earthing, should get 
LED blinking again, AND alarm sounding.
Mark

========================================
Message Received: Sep 08 2014, 08:23 PM
From: "ken1 " 
To: "diesel" 
Cc: 
Subject: [Vwdiesel] 1982 mk1 instrument cluster LED specification and/or replacements

Does anyone know the specifications for the LEDs in the mk1 instrument cluster or what the proper reading should be when testing with a digital multimeter.
OR how to test the LEDs with cluster removed from vehicle?

I found the current generation LEDs with glow when polarity is correct and multimeter is used. 
When I measure the older generation LEDs, I get a reading on the meter.
I tried three (3) red ones and one (1) green one.
For the red ones, 1.508, 1.500, 1.468 respectively and the green one read 1.765. 
I guess the the power may not be enough for the older generation LEDs,
Any input? Thanks. 

-- 
1982 caddy 1.6L NA running
1967 convertible bug running
1980 caddy project 
1991 2 door Jetta TD restoration in progress
_______________________________________________
Vwdiesel mailing list
Vwdiesel at vwfans.com
http://www.audifans.com/mailman/listinfo/vwdiesel