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Kicker CXA1800.1 Flashing in and out of protection
Kicker CXA1800.1 Flashing in and out of protection
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Old 27th June 2018, 03:27 PM   #51
rhempz01 is offline rhempz01  United States
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That did it bill the 393 was bad. I replaced it and the pin 7 signal came back for a moment and now it is gone again.

Last edited by rhempz01; 27th June 2018 at 03:43 PM.
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Old 27th June 2018, 03:57 PM   #52
rhempz01 is offline rhempz01  United States
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From main ground to pin 1 157.9ohms
Pin 2 160.8ohms. did you want the resistance between pin 1 and pin 7?
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Old 28th June 2018, 01:04 AM   #53
PapaZBill is offline PapaZBill  United States
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When you say Pin to are you referring to Pin 7?

You may want to replace IC14-IRS20957 and maybe D103- BAT54C.

I'm a bit stomped. The power supply works, The PWM works, You have Drive out of IC11 Pin 1 but not Pin 7.

There may be something in the in the output on the IC14 side, that's dragging down the drive. If replacing IC14 you still don't have drive, take a close look at the outputs for shorted output devices or broken leads, traces,bad solder joints, open gate resistors, bad gate drivers.
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Old 10th July 2018, 11:58 PM   #54
rhempz01 is offline rhempz01  United States
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what would make one of these fail to start up i have a simular curcuit design in an amplifier that will only draw .3amps of current and wont power up. i can not seem to find the cause?
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