Maintenance
TDS1000B and TDS2000B Series Oscilloscope Service Manual
6-- 11
Use a torque-limiting Torx T-15 screwdriver and pliers for this procedure.
Removal. To remove the module, refer to Figure 8--3 and follow these steps:
1. Remove the power button and rear case using the procedures on page 6--9.
2. Disconnect the following wires:
H The ground wire on the power supply module from the chassis ground
lug.
H The two-conductor backlight cable on the power supply module.
H The power supply cable on the main board at J101. Press down on the
latch while pulling up on the cable.
3. Remove the five screws connecting the power supply module to the chassis
and lift the module from the internal assembly.
Installation. To install the power supply module, refer to Figure 8--3 and follow
these steps:
1. Align and place the power supply module into the internal assembly.
2. Install the two longer screws with thread lock into the IEC connector
mounting holes.
3. Install the three shorter screws through the power supply and into the chassis.
4. Reconnect the following wire and cables:
H 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.
H The two-conductor backlight cable to the power supply module.
H The power supply cable to the main board at J101. Twist the cable to
keep it from contact with the boards and chassis.
NOTE. Wind up the power supply cable until it is tight; loops are okay. This keeps
the cable bundle together.
5. Use the installation procedure for each module removed to reassemble the
oscilloscope.
Power Supply Module