Ground EFX MX200 repair - does not turn on/off.

In the Ground MX200 metal detector, the circuit assembled on the elements Q2, Q5, Q6, D6 is responsible for turning on / off.

Q2 - M1A
Q5 - M1A
Q6 - A1H
D6 - HL43

DC modes circuit on / off the Ground EFX MX200 metal detector.

When turned off.

Q2 - M1A
1 - 0,2V
2 - 0V
3 - 0V

Q5 - M1A

1 - 0V
2 - 0V
3 - 7,6V

Q6 - A1H

1 - 7,6V
2 - 8,3V
3 - 0,3V

D6 - HL43

1 - 0V (0.7V when pressed on)
2 - 0V
3 - 0V


When turned on.


Q2 - M1A

1 - 0V (0.7V for 5sec when pressed on)
2 - 0V
3 - 2.7V (0V for 5sec when pressed on)

Q5 - M1A

1 - 0.7V
2 - 0V
3 - 0V

Q6 - A1H

1 - 8.3V
2 - 0.4V
3 - 8.3V

D6 - HL43

1 - 0V (0.7V when pressed on)
2 - 0.9V
3 - 0.6V

Good repairs to you!