FAQ 10003
How do I link out the Grand Master Fader on a Pearl?

Occasionally, the Grand Master Fader on a Pearl can get damaged.
This can be caused by the flight case lid accidentally knocking the fader when the lid is put on or removed.

To do this, you must first determine which type of Fader Board you have.
There are two types :-  MF4750A and MF4750B and this is indicated on the fader pcb.

MF4750A Type pcb

1. Ensure that the Grand Master Fader is set to Full
2. Open the Pearl Front Panel
3. Locate the diode marked D1 on the MF4750A fader pcb.
4. Solder a wire link between the anode of D1 and the point labelled 'T' of the Grand Master Fader
5. Close the Pearl Front Panel
6. Check the Grand Master Fader is still set to Full
7. Turn the Program switch to System
8. Press Softkey A [Service]
9. Press Softkey B [Diagnostic Screen]
10. In the top left it should read GM=ff
11. That's it ...

MF4750A Type pcb

1. Ensure that the Grand Master Fader is set to Full
2. Open the Pearl Front Panel
3. Locate the link marked GM-LINK on the MF4750B fader pcb.
4. Solder a wire link between the two pads of this link
5. Close the Pearl Front Panel
6. Check the Grand Master Fader is still set to Full
7. Turn the Program switch to System
8. Press Softkey A [Service]
9. Press Softkey B [Diagnostic Screen]
10. In the top left it should read GM=ff
11. That's it ...