Gauge Needles testing?
01-11-12, 05:59 PM
#1
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Gauge Needles testing?
Still a bit new here but I know that we SC300 owners have a notorious problem with our Fuel, RPM, Speed, and Water Temp Needles going dim or completely dead.
Over the past 2 months of owning my SC300, I've collected well over a dozen set of these Needles that ranges from 92 Lexus SC300 all the way up to the 98 Lexus SC300.
Now the questions is, how do I test these to make sure they light up without putting them on my Gauge cluster?
Is there a way to test them while it's out? What devices do I need/instruments do I need?
Thanks
Over the past 2 months of owning my SC300, I've collected well over a dozen set of these Needles that ranges from 92 Lexus SC300 all the way up to the 98 Lexus SC300.
Now the questions is, how do I test these to make sure they light up without putting them on my Gauge cluster?
Is there a way to test them while it's out? What devices do I need/instruments do I need?
Thanks
01-11-12, 07:29 PM
#3
Hey man! I'll take a couple of dead sets off your hands for my 94 --- I want to try a fix adding new LEDs to the tips, but would rather not remove mine before building new ones.
PM me.
PM me.
01-11-12, 09:14 PM
#5
Step 4: Preparing the resistors
Take two 330 ohm resistors (purchased at www.digikey.com - Part Number: P330BACT-ND) and cut one of the leads off each of them leaving about 1/8th of an inch of lead on one side of each resistor. Leave the other leads full length. It doesn't matter which end of the resistor is cut. You want to solder the two short leads together so you have the two resistors connected to each other in series. Tin both short leads with solder and then position them so they are touching and heat the joint with the solder iron tip. Make sure the solder joint is solid. A good solder joint will look shiny not dull. Add a little more solder to the joint if necessary.
Take two 330 ohm resistors (purchased at www.digikey.com - Part Number: P330BACT-ND) and cut one of the leads off each of them leaving about 1/8th of an inch of lead on one side of each resistor. Leave the other leads full length. It doesn't matter which end of the resistor is cut. You want to solder the two short leads together so you have the two resistors connected to each other in series. Tin both short leads with solder and then position them so they are touching and heat the joint with the solder iron tip. Make sure the solder joint is solid. A good solder joint will look shiny not dull. Add a little more solder to the joint if necessary.
01-11-12, 09:30 PM
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I'm not trying to modified the needles in any way.
I've read the first part of it and it mentioned 330 ohm 1/4 watt thru hole resistor x 2 per needle as well as 1K ohm resistor to the surface mount LED but it doesn't state how to test your stock form needles to determine if they are bad or not.
I've read the first part of it and it mentioned 330 ohm 1/4 watt thru hole resistor x 2 per needle as well as 1K ohm resistor to the surface mount LED but it doesn't state how to test your stock form needles to determine if they are bad or not.
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