Date: Fri, 7 Aug 1998 21:15:48 -0500
Reply-To: Carl Hansen <carl_hansen@IEEE.ORG>
Sender: Vanagon Mailing List <Vanagon@vanagon.com>
From: Carl Hansen <carl_hansen@IEEE.ORG>
Subject: Re: LED's burnt out
Content-Type: text/plain; charset="us-ascii"
Original thread, burnt out LED's on the camping gear.
LED's should be available piece part at any electronics store or supply
house, or Radio Shack. Make sure you are careful unsoldering the old one,
and especially careful that the new one go in EXACTLY the same way. There
should be a "flat" on one side of the LED that would give you an
orientation.
*** OK, let me add to this post, obviously, someone got the word out about
Radio Shack.
Derek (or someone else who has the problem and can dismantle the circuit
board) Follow the circuit traces to identiy all components in line with
the LED in question. You should find some resistors, or at least one. The
resistor will drop the voltage to the LED. What is the value of that
resistor. You may see a color code on the resistor, the value can be
determined from the color code.
I would expect to find a couple of hundred ohms, maybe as much as 1000
ohms, and that a nominal voltage value on the LED would be abou........
argh, I'm a bozo. that's what I get for for staying up all night last
night, pulling the engine/tranny out of the GTI donor car so I could go to
West Side to have it inserted into my 16V. It's a long story, but one
blinkin nut on the down tube was rusted so bad, .........
Here's the real scoop:
* Check subgroup 97 in Bently, "Electrical System - Wiring, Camper
You will find a repair and trouble shooting guide for the camper
electronics. The voltage across ANY standard LED is 0.7 volts. There ARE
dropping resistors, and the polarity of the LED is shown.
* Check subgroup 90 in Bently, "Electrical System - Instruments, Radio
Here they imply that you can replace the LED's. I assume any VW dealer
will have them. If not, ANY LED that can handle about 100 ma, and is the
correct PHYSICAL size will do. Make sure you get the correct color.
So..... it's in Bently, VW should have, ANY LED so long as physical size is
correct, ALL LED's drop 0.7 volts across them when correctly installed.
(p.s., yeh, yeh, I know, there are LED's of different voltage drop, and a
Zener diode will drop varying voltages depending on design, but you want
the STANDARD 0.7 volt voltage drop LED.)
(p.p.s., ok, I don't have a Radio Shack catalog handy here, but if you
want, I'll drop over to Radio Shack and pick one out. Several I supose,
for the differnt colors. Post the list or p-mail me, if you need me to do
this.)
Ch
'89 SyncroBeast Vanagon
'87 16V GTI now with 2nd gear, gosh it's nice to have all 5 gears.
'87 16V GTI w/ hale damage - ding busted down tube nuts!!!
'89 16V GTI w/ toasted motor
'86 Scirocco (8 valve w/ auto)
'80 850 Yamaha Special
Prior Lake, MinneSnowta
well, ok, it's summer
Land of Sky Blue Waters
