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--- projects:challengerlightrepair:start [2016/12/22 20:50]
dwheele
+++ projects:challengerlightrepair:start [2016/12/29 23:01] (current)
dwheele
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-{{:projects:challengerlightrepair:img_2887.jpg?nolink&300|}}
+{{:projects:challengerlightrepair:img_2887.jpg?300|}}
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 /22/2016.
+There is a MOSFET (the largest active component) IRLZ44S, {{:projects:challengerlightrepair:91329.pdf|obtained manual.}}. From this, I'm assuming that pin S needs to be at ground.
+{{:projects:challengerlightrepair:irlz44spicture.png?nolink|}}
+Measuring continuity on the circuit board, it appears that the connection points should be like this:
+{{:projects:challengerlightrepair:circuitboardlabeled.png?nolink|}}
+When looking at the end of the connector, with the round sides up, the left connector is Positive, and the right connector is Negative. I applied 23 volts, and both lights worked after changing the fuses and repairing broken wires. The cooling fans aren't spinning - not sure if this is because they are not hot, or because part of the housing completes the ground part of the circuit.
+/25/2016 10:50 a.m.
+When the two lights were installed, one had its fuse blown again. This is probably because of a white pinched wire that is on the circuit board. I replaced this with a longer red wire, and soldered on another fuse.
+The remaining fuses **are located** in the small drawer labeled "fuses" above the work bench.
+/29/2016 3:01 p.m.

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