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PAMS
Technical Documentation
NSE–5
Troubleshooting
Page 14
Issue 1 07/99
D
RF control lines:
RxC (R725) 0–>2.3Vmax during receiving slot
AFC (C747) 0– 1.2V typ. during receiving slot
OK?
Check N200
Analog data signals:
RxIP & RxIN 0–>1.5V DC during receiving slot
Recieved signal is biased to DC, amplitude
50mVpp nominal and frequency 13MHz
OK?
Check N200 if DC fail
or
RF part
No
Yes
No
RF control lines:
TxC (C700) 0–>2.3Vmax during transmit slot
TxP (R706) 0–>2.8V (logical signal) during
transmit slot
OK?
Check N200 if TxC fail
else
Check D300
Analog data signals:
TxIN & TxIP (C709) 0–>0.8V DC during transmit slot
TxQN & TxQP (C708) 0–>0.8V DC during transmit slot
Transmit signal is biased to DC, amplitude 300mVpp
and frequency 64kHz
Yes
No
Yes
OK?
Check RF part
Check N200
No
Yes
Figure 11.
Summary of Contents for NSE-5 Series
Page 15: ...NSE 5 Series Transceivers PAMS Technical Documentation Issue 1 07 99 Chapter 2 System Module...
Page 97: ...PAMS Technical Documentation Issue 1 07 99 Mechanical Assembly...
Page 195: ...NSE 5 Series Transceivers PAMS Technical Documentation Issue 1 07 99 Service Tools...
Page 219: ...PAMS Technical Documentation NSE 5 Series Transceivers Issue 1 07 99 Disassembly Instructions...
Page 227: ...NSE 5 Series Transceivers PAMS Technical Documentation Issue 1 07 99 Troubleshooting...
Page 267: ...PAMS Technical Documentation Original 11 97 HFU 2 Handsfree Unit...
Page 316: ...NSE 5 Schematics Layouts V13 A 2 Page Draft 05 RF and BB Interconnections...
Page 317: ...NSE 5 Schematics Layouts V13 A 3 Page Draft 05 Baseband Block...
Page 318: ...NSE 5 Schematics Layouts V13 A 4 Page Draft 05 Audio...
Page 319: ...NSE 5 Schematics Layouts V13 A 5 Page Draft 05 CPU...
Page 320: ...NSE 5 Schematics Layouts V13 A 6 Page Draft 05 Infrared Module...
Page 321: ...NSE 5 Schematics Layouts V13 A 7 Page Draft 05 Power...
Page 323: ...NSE 5 Schematics Layouts V13 A 9 Page Draft 05 CRFU3...
Page 324: ...NSE 5 Schematics Layouts V13 A 10 Page Draft 05 PA...
Page 325: ...NSE 5 Schematics Layouts V13 A 11 Page Draft 05 SUMMA...
Page 326: ...NSE 5 Schematics Layouts V13 A 12 Page Draft 05 Component Layout Top...
Page 327: ...NSE 5 Schematics Layouts V13 A 13 Page Draft 05 Component Layout Bottom...