User Guide

PAMS

Technical Documentation

NSE–8/9

Troubleshooting

Page 31

Issue 1 07/99

3. PCN Receiver

3.1 . General instructions for PCN RX troubleshooting

Start WinTesla–Service–Software and

Select: P

roduct Alt+p

and b

CN p

Select: Te

sting Alt+e

F Controls r

X Continuous Alt+r

nt. Mode Ch: 700 Alt+o, 700

Front E

nd On (if Front End

is off, Alt+e)

Apply an 1842.8 MHz (MID channel) –50 dBm signal to MJS–13

RF–connector. This signal is tracked through RX–path and will make the

troubleshooting of the RX easier.

3.2 . Path of the received PCN signal

This path defines the general route of the received signal:

Antenna, Diplexer (Z503), TX/RX Switch (Z504), PCN Filter (Z501),

CRFU3 (LNA N600), PCN Filter (Z602), CRFU3 (Mixer N600), LC 187

MHz Filter (L604), CRFU3 (Mixer N600), SAW 71MHz Filter (Z700),

SUMMA (N700), 13Mhz Filter (Z701), SUMMA, COBBA_GJP (N200).

The related component number(s) are defined inside (.).