Lamp test on Taxi

jacklegjim

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Joined
Oct 9, 2009
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Location
Tennessee
In single lamp test mode should just one lamp be on at a time?
While trying to test mine there might be several on at a time.
Most of them are also dim. On some of them the right bulb is not on.
Something does not look right to me about the lamp test on my taxi.
Where would be a good place to start looking to fix this if this is not normal?
Thanks Jim
 
Update on repair

My lamp problem was five bad 2N6472 transistors in the colums circuit in the lamp matrix
everything works right now.
Jim
 
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