Tektronix TG8000 Service Manual

GPS7 module removal and replacement
Antenna connec
tor. To remove the Antenna connector:
1. Use the
9
/
16
inch socket to remove the nut on the Antenna BNC connector.
When reinstal
ling, tighten the nut to 14 in/lb.
2. Unplug the RF coaxial cable from P1 on the Trimble GPS Receiver board.
3. Remove the Antenna connector, threading the cable through the rear panel.
LTC/GPI con
nector. To remove the LTC/GPI connector:
1. Use the
3
/
16
inch hex d river to remove the jackscre ws securing the LTC/GPI
connector
to the rear panel. When reinstalling, use the hex driver to tighten
the jackscrews hand tight.
2. Unplug th
e LTC/GPI cable from J10 on the GPS7 Main board and remove it
from the cable clamp.
When rei
nstalling, twist the cable twice before plugging it in to J10 on the
Main board.
3. Remove
the LTC/GP DSUB connector and cable.
To replace the chassis
1. Pull the light pipe out of its board connector. This is a slip-fit and should
come apart easily.
2. Remove the external rear panel:
a. Use the
9
/
16
inch wrench to remove the nuts from the four BNC connectors
on the rear panel.
b. Move the external rear panel away from the chassis, pulling the light
pipe out with it.
3. Unplug the R F coaxial cable from P1 on the Trimble GPS Receiver board,
and remove the Antenna connector and cable.
4. Use the
3
/
16
inch hex d river to remove the jackscre ws securing the LTC/GPI
connector to the rear panel. When reinstalling, use the hex driver to tighten
the jackscrews hand tight.
5. Remove the LTC/GPI connector from the rear panel.
6. Remove the four T10 screws that attach the circuit board to the chassis. When
reassembling, torque these screws to 8 in/lb.
7. Lift the Main board assembly off of the chassis and set it on a static-free
work surface.
TG8000 Multiformat Test Signal Generator Service Manual 10–25

Tektronix TG8000 Specifications

General

Brand	Tektronix
Model	TG8000
Category	Portable Generator
Language	English