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Topic: Strong Super Highlight Blues
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Ian Price
Phenomenal Film Handler
Posts: 1714
From: Denver, CO
Registered: Jun 99
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posted 04-08-2000 04:58 PM
My Strong Super Highlight lamp house no longer strikes the lamp automatically. It doesn't strike it when you throw the switch, and it doesn't strike when you de-select the Auto button.It does strike very well when you hit the Emergency Strike button. This is what we do for each show. It doesn't strike when it is hot. What should I look for? Can it be the igniter even though the Emergency Strike works well? Or is it a Relay or Automation problem? Lamp; House Strong Super Highlight
Lamp; Christie CXL 30SC
Automation; Strong SPA-7
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Steve Guttag
We forgot the crackers Gromit!!!
Posts: 12814
From: Annapolis, MD
Registered: Dec 1999
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posted 04-09-2000 10:45 AM
Ian:The igniter board is where your problem lies. First, when you place the lamp on manual and try to strike it the "regular way"...what is the no-load voltage (press the button/switch by the meter)...it should be well above 100 volts (the switcher should get above 120 volts). Presumming that you have the proper no-load voltage, do you hear a "clicking" from the igniter area (it will be faint since it is just the relay)...it will cycle on and off. If not then the problem probably lies with the zener diode that drops the voltage to the relay via a power resistor. If the relay is operating but it isn't igniting, then look towards the relay. Strong, for whatever reason, doesn't use both sets of relay contacts (but does bring the other contacts out to termination points on the PCB). Many times I have found half of the relay bad and burned up but the other contacts are fresh and new. If I ever have the board in my hands, I always jump the contacts so both are in use. If it is your relay contacts, this will get you going again and when you change your relay down the road, you will have both contacts working for you. Steve ------------------
"Old projectionists never die, they just changeover!"
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