Legacy ToneDexter
Repair

To remove the ToneDexter circuit board from the unit:

1. Remove knobs by pulling straight up
2. Remove 4 jack bushing nuts on side and rear
3. Remove 4 screws holding top in place
4. Remove pot nuts
5. The red top should lift off easily
6. Remove 4 XLR jack mounting screws
7. Back the printed circuit board out of the metal enclosure. It may be somewhat tight if the side jacks are catching a little. This should yield to gentle but firm pressure. If necessary, bend the metal sides of the chassis out a little with pressure first, to make a bit more room.

Re-Installing the ToneDexter Circuit Board

1. Put the printed circuit board back into the metal enclosure. It may be somewhat tight if the side jacks are catching a little. You can tilt the board a little first to get it in between the metal sides. Then, push it back until all the jacks protrude the back panel
2. Reinstall 4 XLR jack mounting screws. Snug, but not forced too tight.
3. Place red top back on
4. Reinstall pot nuts snug
5. Reinstall 4 screws holding top in place
6. Reinstall 4 jack bushing nuts on side and rear, barely snug
7. Reinstall knobs by pushing straight down. EQ knob markers should be straight up, the rest should be about 7 o’clock.