Path Of The Transmitted Signal - Nokia NSW-6 Series Disassembly & Troubleshooting Instructions

NSW-6
Disassembly & Troubleshooting
Power level RF Power at ext. Anten-
8 4.0 dBm
9 –0.0 dBm
10 –4.0 dBm
Check, that power level PL2 TXC DAC value is on allowed range
+50...300.
TDMA1900 TX output power
Power level RF Power at ext. Anten-
2 25.9 dBm
3 23.0 dBm
4 20.0 dBm
5 16.0 dBm
6 12.0 dBm
7 8.0 dBm
8 4.0 dBm
9 0.0 dBm
10 –4.0 dBm
Check, that power level PL2 TXC DAC value is on allowed range
+0...+250.

Path of the transmitted signal

AMPS/DAMPS
Cobba TX I/Q DAC – I/Q–modulator – gain step amplifier – linear gain
control amplifier – IF BPF – Upconverter – TX Driver amplifier – BPF–
Power Amplifier – Directional Coupler– Duplexer –Diplexer – Antenna.
TDMA1900D
Cobba TX I/Q DAC – I/Q–modulator – gain step amplifier – linear gain
control amplifier – IF BPF –Upconverter – BPF– TX Driver amplifier –
BPF– Power Amplifier – Directional Coupler– Duplexer – Diplexer – An-
tenna.
Power detection and power control circuits are located under the power
control part of this guide.
Page 34
Tuning target tolerance
na pad
+/– 1 dB
+/– 1 dB
+/– 1 dB
Tuning target tolerance
na pad
+/– 0.1 dB
+/– 1 dB
+/– 1 dB
+/– 1 dB
+/– 1 dB
+/– 1 dB
+/– 1 dB
+/– 1 dB
+/– 1 dB
E Nokia Mobile Phones Ltd.
PAMS Technical Documentation
Testing Limits
+/– 2.0 dB
+/– 2.0 dB
+/– 2.0 dB
Testing Limits
+0.5 – 1.0 dB
26.4 – 24.9 dBm
+/– 2.0 dB
+/– 2.0 dB
+/– 2.0 dB
+/– 2.0 dB
+/– 2.0 dB
+/– 2.0 dB
+/– 2.0 dB
+/– 2.0 dB
Issue 1 12/99