Pcn Receiver - Nokia Mobile Phones NSE-5 Series Service Manual

NSE–5
Troubleshooting

PCN Receiver

Start WinTesla–Service–Software and
Select: Product
Select: Testing
Apply a 1842.8 MHz (MID channel) –50 dBm signal to RF–connector. This
signal is tracked through RX–path and will make the troubleshooting of the
RX easier.
Path of the received PCN signal
This path defines the general route of the received signal:
Antenna, Mechanical Switch (X501), 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 (.).
Page 26
Band
PCN
RF Controls
RX Continuous
Cont. Mode Ch: 700
Front End On
PAMS
Technical Documentation
Issue 1 07/99