Tektronix TDS1001C-EDU, Service Manual

Page: 78 / 114

Maintenance
Display Module You will need a torque-limiting Torx T-15 screwdriver, a torque-limiting Torx
T-8 screwdriver, and pliers for this procedure.
Refer to the exploded view diagram for the 2-channel or the 4-channel models.
(See page 89.) (See page 92.)
CAUTION.
Do not separate the display shield from the display module. Removing
the shield will destroy the attaching gasket.
Removal.
1. Remove the power button and rear case. (See page 96.)
2. Remove the internal assembly from the front case. (See page 61, Internal
Assembly
.)
3. Disconnect the display backlight wire cable from the Main board. (See
page 64.)
4. Disconnect the display ribbon cable from the Main board. (See page 64.)
5. Remove the power supply module. (See page 60, Power Supply Module .)
6. Remove the four screws attaching the display module to the chassis. The
screws were exposed when the power supply module was removed.
7. Remove the display from the chassis. Handle this assembly carefully.
Installation.
1. Position the Display module on the chassis.
2. Use the Torx T-8 screwdriver and install the four screws to attach the display
module to the chassis. Torque the nuts to 3 in-lbs (0.33 N@m) using the
torque wrench (2.864 ±0.26 in-lbs).
3. Route the backlight and display cables through the appropriate openings in
the internal assembly. (See page 64.)
4. Connect the backlight wire cable to the Main board (J1502 for 2 Ch, J2001
for 4 Ch).
5. Connect the display ribbon cable to the Main board (J1501 for 2 Ch, J2002
for 4 Ch).
6. Assemble the oscilloscope by performing the installation procedure in reverse
order for each module that was removed.
66 TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual