Tektronix RTX130B, Service Manual

Page: 134 / 180

Removal and Installation Procedures
4-30
RTX130B QAM & VSB RF Signal Generator Service Manual
1. Assemble equipment and locate modules to be removed:
a. You need a screwdriver with a T-10 Torx tip.
b.
Locate the 12 V main power supply in the locator diagram Internal
modules, Figure 4-4, page 4-13.
2. Orient the instrument: Set the RTX130B so its bottom is down on the work
surface and its left side is facing you.
3.
Remove the 12 V main power supply:
See Figure 4-13 on page 4-31.
a. Disconnect the cables from CN1, CN2, CN3, and CN4.
b. Use a screwdriver with a T-10 Torx tip to remove the four screws
securing the 12 V main power supply to the chassis.
c.
Lift the power supply away from the chassis.
4. Reinstallation: Perform step 3 in reverse order to reinstall the 12 V main
power supply.
1.
Assemble equipment and locate modules to be removed:
a.
You need a screwdriver with a T-10 Torx tip.
b. Locate the A40 AC Distributor board in the locator diagram Internal
modules, Figure 4-4, page 4-13.
2.
Orient the instrument: Set the RTX130B so its bottom is down on the work
surface and its left side is facing you.
3.
Remove the A40 AC Distributor board: See Figure 4-13 on page 4-31.
a. Disconnect the cables from J100, J110, and J120.
b.
Use a screwdriver with a T-10 Torx tip to remove the three screws
securing the A40 AC Distributor board to the chassis.
c.
Lift the board away from the chassis.
4. Reinstallation: Perform step 3 in reverse order to reinstall the A40 AC
Distributor board.
12 V Main Power Supply
A40 AC Distributor Board