ALLEN & HEATH DL1000, Руководство по обслуживанию

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series 17
Removing the Fader, Keypad PCB & Rubber Keypad
Before beginning any service work, remove all power to the unit and disconnect any signal cables where
necessary. Adopt static electricity working procedures when carrying out service work. Ensure
adequate lighting and use the correct tools. Access to the Fader PCB, Keypad PCB and Rubber
Keypad can only be achieved once the CPU circuit board has been removed (see ‘Removing the CPU
PCB’)
1) Remove all front panel gain pot. and fader knobs.
2) Remove the 8 fader screws from the front panel. Remove the Fader PCB.
3) Remove the 11 potentiometer nuts from the front panel.
4) Remove the plastic jack sockets from the rear panel by turning them 45deg anti-clockwise and
then pull off by hand.
5) Remove the 11 screws from the rear panel. Remove the Audio PCB from the console.
6) Remove the 3 screws from the Keypad Bracket (see fig.20)
7) Remove the Keypad bracket, the Keypad PCB then the Keypad.
( Note: We recommend the Rubber Keypad is replaced when the Keypad PCB is replaced).
When all service work is complete, remove all debris such as solder, component legs and wire clippings
from inside the unit and check your work carefully before re-assembly. To refit the Keypad circuit board
assembly and/or Rubber Keypad, follow the above procedure in reverse order. Make sure all harnesses
are aligned and plugged on. Test for correct operation.
Keypad bracket screws
fig.20