Tektronix TDS1001C-EDU, Service Manual

Page: 72 / 114

Maintenance
Power Supply Module Use a torque-limiting Torx T-15 screwdriver and pliers for this procedure.
Refer to the exploded view diagram. (See page 94.)
Removal.
1. Remove the power button and rear case. (See page 58, Rear Case .)
2. Disconnect the following wires and cables:
The ground wire on the power supply module from the chassis ground lug.
The power supply cable on the Main board at J101. Press down on the
latch while pulling up on the cable.
3. Remove the fi ve screws that connect the power supply module to the chassis
and lift the module from the internal assembly. The two screws for the AC
connector are longer than the others.
Installation.
1. Align and place the power supply module into the internal assembly.
2. Install the two longer screws with thread lock into the IEC AC power
connector mounting holes.
3. Install the three shorter screws through the power supply and into the chassis.
4. Connect the following wire and cables:
The ground wire on the power supply module to the chassis ground lug.
You may need to use pliers to secure the wire in place.
The power supply cable to the Main board at J101. Position the cable to
keep it from contacting the boards and chassis.
NOTE.
Twist the power supply cable until it is tight; loops are okay. This keeps
the cable bundle together.
5. Assemble the oscilloscope by performing the installation procedure in reverse
order for each module that was removed.
60 TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual