Ilford 500 head

Steve Sherman · Feb 15, 2010

While raising the head I lost power to the low contrast side of the Ilford 500 head today, changed bulbs to no avail.

If power supply is going bad would it affect only one side at a time? Both fuses appear OK.

Anyone know where this beast can be repaired?

Thanks in advance

mattk · Feb 15, 2010

I lost power in a simlar fashion on mine. Turned out to be a short in the power cord (right at the terminal end). I had to resolder mine--never popped a fuse. Smell the plugs or open them up to check for a short.

Steve Sherman · Feb 16, 2010

mattk said:
I lost power in a simlar fashion on mine. Turned out to be a short in the power cord (right at the terminal end). I had to resolder mine--never popped a fuse. Smell the plugs or open them up to check for a short.

Thanks for the heads up, I am assuming you are talking about the powercord from the power supply to the enlarger head.

Again thanks.

mattk · Feb 17, 2010

Yep, cord from the power supply to the head.

Steve Sherman · Feb 18, 2010

Problem solved

Seems that the copper plate which is pushed in via the "plunger" on the door was not activating both the micro switches. After disassembling the head a slight bend to the copper plate should cure the problem until the next time the plate loses just enough tension to cause the same again.

Thanks Matt for the help

Ilford 500 head

Steve Sherman

mattk

Steve Sherman

mattk

Steve Sherman

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