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    servo dsab problems

    hi i have installed a efis, an ems an ap74 and 2 servos. the problem is for a week everything works great, now after an dsub error i'm unable to set up the autopilot again, when i connect the roll servo all the dsub chain goes crazy, i mean i could not see the other devices i'm sure that the...
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    fuel flow voltage ( pin 15) low

    hi i have problem with fuel flow sensor, i have tried to read the voltage from pin 15 on the EMS D-120 37 pin connector and is near 6,4 volt ( instead 14) i have found also 3.3 volt on yellow cable, it it ok? the flow sensor is the " red box" thanks Tony
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    EFIS-D10A and OAT probe

    hello i have a problem i want to know if is possible to connect the 3 wire OAT ( with black ring near sensor) directly to an EFIS-D10A , if yes please advise me on pinouts for the 3 wires on DB25 thanks Tony
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