Filter
Top Products
Maintenance
2715 Spectrum Analyzer Service Manual
6-5
Square Pins
BNC Connectors
A
B
A
B
Figure 6- 2: Signal Steering Square Pins
Conversely, an external signal may be injected on any one of these signal lines
by removing the proper jumper on the signal line, selecting a BNC connector,
and applying the external signal to the selected connector.
The double shielded coaxial cables with SMB connectors and the coaxial cable
with square pin connectors are for interboard connections when needed.
Visual Inspection. After cleaning, carefully check the instrument for such defects
as defective connections and damaged parts. The remedy for most visible defects
is obvious. If heat damaged parts are discovered, try to determine the cause of
overheating before the damaged part is replaced; otherwise, the damage may be
repeated.
Transistor and Integrated Circuit Checks. All transistors and integrated circuits are
soldered on the boards to prevent pin contact problems. Periodic checks of the
transistors and integrated circuits is not recommended. The best measure of
performance is the actual operation of the component in the circuit. In most cases
any degradation in performance will be detected by the microprocessor during
power up. Performance of these components is also checked during
NORMALIZATION; any substandard transistors or integrated circuits will
usually be detected at that time.