Keypad Membrane And Pcb Replacement - Anritsu Spectrum Master MS2721A Maintenance Manual

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11. Keypad Membrane and PCB Replacement

This procedure provides instructions for removing and replacing the keypad membrane and PCB.

NOTE: The keypad PCBs and membranes can be replaced without opening the Spectrum Master

case.

1. Place the instrument face up on a protected work surface.

2. There are eight locking tabs holding the keypad bezel to the case. Using a small flat-blade screwdriver, carefully pry

the front bezel locking tabs free of the main body of the case. This will expose the keypad membrane.

Figure 17. Front Panel Keypad Bezel

3. Remove the keypad membrane by carefully lifting the speaker and pulling the membrane off of the keypad PCB.

Figure 18. Keypad Membrane

Spectrum Master MM

ARROWS POINT TO

FRONT BEZEL

LOCKING TAB LOCATIONS

SPEAKER

KEYPAD

MEMBRANE

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