APC 7443 LED's dont' work!
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Registered!!
Joined: Oct 2002
Posts: 17
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From: Atlanta, Georgia, US
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APC 7443 LED's dont' work!
Here's what I wrote to the company, after neither bulb lit up, leading to me getting my multitester out to diagnose the problem....
"There are 4 leads total coming into the
bulb apparatus, with 2 going to the same place on the circuit board, and the
other 2 going to individual resistors. The latter 2 are the leads that concern
me. They each have a resistor or two and are then connected to either the LED
ring or the middle LED. However, they are also soldered together (in both the
bulbs I bought). When I covered up one lead with electrical tape and plugged
it in, the parking light in the middle would work. When I covered up the other
lead, the outer ring would work when I turned the turn signal on. However,
having both leads exposed (connected to the harness) would seem to me to cause
a short.
When I plugged it in with all leads attached, it got warm (and no LED's lit
up). After a while, the first resistor going to the middle LED burned up
(turned brown). This is because of the short after the resistor, correct?
I believe this was put here to keep the resistance up when the turn signal is
on, so that the flasher won't flash very quickly.
I confirmed the resistor was blown as I tested the circuit with a multimeter
and it indicated an infinite load (open circuit). I tested the good bulb (with
the unblown resistor) and got an ohm load."
What could be the problem? Other people on the forum said these work fine.
"There are 4 leads total coming into the
bulb apparatus, with 2 going to the same place on the circuit board, and the
other 2 going to individual resistors. The latter 2 are the leads that concern
me. They each have a resistor or two and are then connected to either the LED
ring or the middle LED. However, they are also soldered together (in both the
bulbs I bought). When I covered up one lead with electrical tape and plugged
it in, the parking light in the middle would work. When I covered up the other
lead, the outer ring would work when I turned the turn signal on. However,
having both leads exposed (connected to the harness) would seem to me to cause
a short.
When I plugged it in with all leads attached, it got warm (and no LED's lit
up). After a while, the first resistor going to the middle LED burned up
(turned brown). This is because of the short after the resistor, correct?
I believe this was put here to keep the resistance up when the turn signal is
on, so that the flasher won't flash very quickly.
I confirmed the resistor was blown as I tested the circuit with a multimeter
and it indicated an infinite load (open circuit). I tested the good bulb (with
the unblown resistor) and got an ohm load."
What could be the problem? Other people on the forum said these work fine.
Registered!!
Joined: Feb 2002
Posts: 1,205
Likes: 0
From: Simpsonville, South Carolina, US
Rep Power: 0 Man I have some blue 7443 APC lights. They were a bright *** blue when i first put them in and now they have turned green....yep green. WTF!!!??? Maybe I'll see if the speed shop in town is having a sale after christmas or something and buy some good bulbs.
Registered!!
iTrader: (3)
Joined: Aug 2001
Posts: 3,231
Likes: 0
From: Metro Detroit, Michigan
Rep Power: 0 you all need to start getting your l.e.d.'s here HZ Engineering they are awesome!
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