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PAMS
Technical Documentation
NSE–3
Disassembly & Troubleshooting Instructions
Page 29
Original, 11/97
Transmitter Fault (2)
T
ransmitter
1
TXLEV5
Z505 input,
SL: – 23 dBm
Z505 input,
loading > 1 M
Ω
Check Z505 input for short
circuits, if OK change Z505
Check C700
Z505 output,
SL: –29 dBm
Z505 output,
loading > 1 M
Ω
Check Z505 output for short
circuits, if OK change Z505
Change Z505
N550 pin 8,
SL: –29 dBm
Check
V640 limiter circuit
DC–levels(VTX–voltage),
Base: ~0.6V
Collector: ~0.6V
Emitter: ~0.3V
N550 pin 13,
SL: –2 dBm
N550 pin 2,4,6,12,13 and 14
~3.6V
Check VBA
TT–connections
to
N550
N550 pin 1 and 16,
VTX–pulse
Check soldered joints
at N550
N550 pin 9,
power control pulse
Check soldered joints at N550
and N620, if OK change N620
Check
C564,C505,C566,C572,C555,C
567,L552, if OK change N550
Duplexer TX–pin,
SL: 6 dBm
Check components in line
from N550 to Z550.
Also
check for short circuits, if OK
change Z550
Check X540, if OK change
Z550
RF–connector X540 pin 1,
SL: 5 dBm
VTX and power contol pulse(TXC):
Oscilloscope pictures in
Appendix
D
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
Check R668, R662, R664,
R666, R670, C660, C662
and C562, If OK change
V640
Содержание NSE-3 SERIES
Страница 3: ...NSE 3 SeriesTransceivers PAMS Technical Documentation Original 11 97 Chapter 1 Foreword ...
Страница 7: ...NSE 3 Series Transceivers PAMS Technical Documentation Original 11 97 Chapter 3 System Module ...
Страница 79: ...PAMS Technical Documentation NSE 3 System Module Page 3 73 Original 11 97 This page intentionally left blank ...
Страница 80: ...PAMS Technical Documentation Original 11 97 Chapter 4 UI Module UE4 ...
Страница 83: ...PAMS Technical Documentation UI Module UE4 Page 4 4 Original 11 97 Baseband Block Diagram ...
Страница 95: ...PAMS Technical Documentation UI Module UE4 Page 4 16 Original 11 97 This page intentionally left blank ...
Страница 96: ...UIF Module UE4 Original 11 97 4 A3 1 Circuit Diagram of UIF Module Version 8 Edit 44 for layout version 10 ...
Страница 98: ...UIF Module UE4 Original 11 97 4 A3 3 Circuit Diagram of Keyboard Version 8 Edit 38 for layout version 10 ...
Страница 99: ...UIF Module UE4 Original 11 97 4 A3 4 Layout Diagram of UE4 Version 10 ...
Страница 100: ...PAMS Technical Documentation Original 08 96 Appendix 1 TRANSCEIVER NSE 3NX ...
Страница 104: ...NSE 3 Series Transceivers PAMS Technical Documentation Original 11 97 Disassembly Troubleshooting Instructions ...
Страница 139: ...PAMS Technical Documentation Original 11 97 HFU 2 ...
Страница 146: ...PAMS Technical Documentation HFU 2 Page 8 Original 11 97 Exploded View of HFU 2 3 2 4 5 1 ...
Страница 153: ...PAMS Technical Documentation HFU 2 Page 15 Original 11 97 This page intentionally left blank ...
Страница 154: ...PAMS Technical Documentation Original 11 97 CARK 64 Installation Guide ...
Страница 158: ...PAMS Technical Documentation CARK 64 Page 5 Original 11 97 This page intentionally left blank ...
Страница 159: ...PAMS Technical Documentation Original 11 97 CARK 91 Installation Guide ...
Страница 167: ...PAMS Technical Documentation CARK 91 Page 9 Original 11 97 This page intentionally left blank ...
Страница 168: ...NSE K B 3 Series Transceivers PAMS Technical Documentation Original 11 97 Service Tools ...
Страница 192: ...PAMS Technical Documentation NSE K B 3 Service Tools Page 25 Original 11 97 This page intentionally left blank ...
Страница 193: ...NSE 3 System Module UP8T Original 11 97 3 A3 1 Block Diagram of System RF Blocks ...
Страница 194: ...NSE 3 System Module UP8T Original 11 97 3 A3 2 Circuit Diagram of Baseband Version 12 Edit 8 for layout version 14 ...
Страница 195: ...NSE 3 System Module UP8T Original 11 97 3 A3 3 Circuit Diagram of Power Supply Version 14 Edit 41 for layout version 14 ...
Страница 198: ...NSE 3 System Module UP8T Original 11 97 3 A3 6 Circuit Diagram of Audio Version 14 Edit 27 for layout version 14 ...
Страница 199: ...NSE 3 System Module UP8T Original 11 97 3 A3 7 Circuit Diagram of IR Module Version 14 Edit 21 for layout version 14 ...
Страница 200: ...NSE 3 System Module UP8T Original 11 97 3 A3 8 Circuit Diagram of RF Block Version 14 Edit 26 for layout version 14 ...
Страница 203: ...NSE 3 Series Transceivers PAMS Technical Documentation Original 11 97 Tuning Instructions ...
Страница 217: ...PAMS Technical Documentation NSE 3 Tuning Instructions Page 15 Original 11 97 This page intentionally left blank ...