To remove the fan
1
Disconnect the fan cable from the power supply board.
2
Using the T15 TORX driver, remove the three screws that hold the
fan to the deck.
To remove the front panel
1
Remove the intensity knob by pulling straight out.
2
Disconnect the keyboard ribbon cable from the system board.
3
Use a screwdriver to release retainer tab A, and your finger to release
retainer tab B. See figure on next page.
Releasing front panel from deck of intrument
When tab B is released, be careful that the sheet metal tab of front-panel
ground input clears the softkey circuit board. The circuit board may be
depressed slightly with a screwdriver to avoid damage to the circuit board.
4
Rotate the front panel out until the bottom clears the rear of the
assembly, then lift the front panel to free the hooks on top.
Service
Replacing Parts in the Oscilloscope
4–51
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