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Thread Tools | Display Modes |
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Dimming the Icom A200
On Apr 22, 10:54 am, reid wrote:
Greetings.... Despite a search to find the answer I'm seeking, I've found nothing. I hope some of those who've bolding built and flown can give me a heads up on what I'm missing. To be as concise as possible, yet not mislead anyone, here goes as to my problem. I'm helping a friend put his Icom A200 into his Europa. All is well, with the exception of not being able to figure out the dimming and lighting pin. The fold out pages that act as a manual say to connect pin B to the lighting circuit. When the lights are dimmed, the panel light on the A200 is supposed to go to 1/2 brightness. If we connect nothing to the pin, there is no back light. It needs some sort of light during the day to be easily visible. Obviously the panel lights are not needed during the day, so some power to that pin is assumed by me to be necessary whenever the radio is on. If we leave the pin at 14 v. all the time, then it is too bright at night. I cannot figure out if we've missed something or not. Their instruction about connecting to the lighting circuit implies that the pin has no power during daylight operation. What WOULD make sense is that somehow the radio itself backlights the display whenever the radio power switch is on. I've checked out jumpers that are required for power and all, and we have good connections, and have connected all pins as mentioned in the diagram. Has anyone installed an A200 and got the backlight to come on during the day, and also dim at night? If so, can you remember or consult your diagrams to see how you did it. I seem to be missing something. And thank you for any help or direction or comments you might be able to give. Dale 203EC project I have a A200 in my experimenatl and I totally agree. You can barely see the digits during the day without the backlight on. At night it is wayyyy too bright. If I had to do it all over again, during my wiring process I would have installed a dimmer circuit in the 14v line leading the the radio light. The instructions that came with the radio are kinda misleading.. Ben www.haaspowerair.com |
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