Tektronix TAS 475 - Figure 6-18: Power Button Shaft Disconnect

Removal and Installation Procedures
A63 Power Supply
Module
6-34
• Front Trim Removal
•
A3 Display Driver Board
• CRT
1. Unplug the cables from connectors J80, J82, and J84 on the A2 Display
Control
board.
2. Lift the A2 Display Control board up toward the top of the chassis,
sliding the board out of the board retainers.
3. Re-install the A2 Display Control board by sliding the board into the
board retainers.
4. Re-install all cables at connectors J80, J82, and J84.
5. Install all previously removed components.
The procedures that follow describe how to remove and install the Power
Supply module.
Additional procedures required - This procedure requires that the
following procedures be performed first:
• Rear Cover Removal
•
Cabinet Removal
Power Supply Removal
1. Set the oscilloscope so its top down on the work surface.
2. Disconnect the power button shaft from the power switch on the Power
Supply module. See Figure 6-18.
Power Button Shaft
././ A.V'~I --' Located on Power
~
+----- Power Switch
Supply Module
Figure 6-18: Power Button Shaft Disconnect
3. Unplug the cables going to the A3 Display Driver board at J70 and J71.
4. Set the oscilloscope so its bottom down on the work surface.
5. Unplug the cable going to the A5 CPU board at J55.
6. Unplug the two-wide cable from the fan.
Maintenance
•
•
•
Scan by Zenith