MartySantic
Well Known Member
The fastest trim speed I can obtain at a battery voltage of 12.3 VDC (as measured with a DVM at the battery) is 40 seconds (stop to stop). This is with the potentiometer at its stop (fully counter-clockwise). The trim motor merely buzzes with the pot fully in the other direction. The plans call for a min speed of 30 seconds at 12.0 VDC. The trim motor sounds as though it is laboring (wha-wha sound).
ANYONE else having this problem?? Has anyone solved the problem??
I measured the resistance of white wire and the white/red wire (power to the motor) from the tail to the 37 pin connector behind the panel and each is 0.9 ohms. So the wires and all crimps are good.
I have attached a battery charger and with a battery voltage of 13.8 VDC (at the battery), the trim speed is 31 seconds.
I have measured the DC voltage at the running servo with a DVM. The voltage is 5.0 VDC. From another post, I understand that the control panel board produces a pulse width modulation signal. A lower voltage is to be expected as the DVM is measuring an average of the chopped signal. I do not have a scope to view the waveform.
With the trim motor attached to a DC power supply, the trim motor speed is 12.0 seconds at 12.0 VDC and 10.0 seconds at 13.8 VDC.
I have talked to support at Van's and they have acknowledged others are having the same issue, but, could not suggest any other testing other than replacing the switch panel.
Has anyone replaced the switch panel and obtained better results??
Do the servos vary? Has anyone replaced the servo and obtained better results?
ANYONE else having this problem?? Has anyone solved the problem??
I measured the resistance of white wire and the white/red wire (power to the motor) from the tail to the 37 pin connector behind the panel and each is 0.9 ohms. So the wires and all crimps are good.
I have attached a battery charger and with a battery voltage of 13.8 VDC (at the battery), the trim speed is 31 seconds.
I have measured the DC voltage at the running servo with a DVM. The voltage is 5.0 VDC. From another post, I understand that the control panel board produces a pulse width modulation signal. A lower voltage is to be expected as the DVM is measuring an average of the chopped signal. I do not have a scope to view the waveform.
With the trim motor attached to a DC power supply, the trim motor speed is 12.0 seconds at 12.0 VDC and 10.0 seconds at 13.8 VDC.
I have talked to support at Van's and they have acknowledged others are having the same issue, but, could not suggest any other testing other than replacing the switch panel.
Has anyone replaced the switch panel and obtained better results??
Do the servos vary? Has anyone replaced the servo and obtained better results?
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