Maintenance
Keypad
You will need a t
orque-limiting Torx T-15 screwdriver for this procedure.
Refer to the exploded view diagram for the 2-channel m odels or the 4-channel
models. (See p
age 8 9.)(See Figure 13.)
Removal.
1. Remove the p
ower button a nd re ar case. (See page 58, Rear Case.)
2. Remove the in t ernal assembly from the fron t case. (See page 61, Internal
Assembly.
)
3. Lift the keypad switch out of the front case.
CAUTION.
Keep the electrical contacts on the back of the keypad clean. Skin oils
and dust inhibit good electrical contact.
Install
ation.
1. Place the front case face down on a soft surface (such as an anti-static mat).
2. Align the switch keypad into the front case using the guide posts and the
holes in the keypad.
CAUTION. Keep the electrical contacts on the back of the switch keypad clean.
Skin
oils and dust inhibit good electrical contact.
3. Check that all buttons are properly seated before proceeding.
4. Assemble the oscilloscope by perform ing the installation procedure in reverse
order for each module that was removed.
68 TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual
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