Nokia 6081, NME–2A Troubleshooting Instruction
Programmes After Market Services (P.A.M.S.)
Technical Documentation
NME–2A SeriesTransceivers
Troubleshooting
Instructions
Original 08/97
NME–2A
Troubleshooting Instructions
AMENDMENT RECORD SHEET
P.A.M.S.
Technical Documentation
Amendment
Number
Date Inserted By Comments
08/97 Original
Page 2
Original 08/97
P.A.M.S.
NME–2A
Technical Documentation
Troubleshooting Instructions
Contents
Troubleshooting Instructions 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BB Troubleshooting Flow Diagrams 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flash Programming OK; part 1 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flash Programming OK; part 2 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flash Programming OK; part 3 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flash Programming OK; part 4 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PWR Button Fault 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Display Selftest Failed 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
No Registration to the System (no serv) 12. . . . . . . . . . . . . . . . . . . . . . . . . .
Audio Fault 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Troubleshooting Instructions 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Page No
RX Part 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TX Part 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UHF Synthesizer 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VHF Synthesizer 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Original 08/97
Page 3
NME–2A
Troubleshooting Instructions
P.A.M.S.
Technical Documentation
[This page intentionally left blank]
Page 4
Original 08/97
P.A.M.S.
NME–2A
Technical Documentation
Troubleshooting Instructions
The purpose is to define fault block of the module and then find out the
broken component. The trouble shooting diagram has been planned so
that the fault, whatever it is, can be found by as simple measurements as
possible.
Required servicing equipment:
– PC for PCLocals
– Power supply (12 V 5 A)
– Digital multimeter
– Oscilloscope with 10:1 probes
– Spectrum analyzer (capable of 10 W input e.g. external attenuator)
– Signal generator
– Test SIM
Troubleshooting Instructions
– RF cables with BNC or N in the other end
– Modular cable
– RS232/M2BUS adapter DAU–2
– HP8922H
BB Troubleshooting Flow Diagrams
The baseband flow diagrams give you the overview of the blocks. The
purpose is that you proceed through the flow diagram so that, if your
answer is YES for the asked question, go straight to the next level, but if
your answer is NO, you have to go the sub–branch.
Original 08/97
Page 5
NME–2A
Troubleshooting Instructions
Flash Programming OK; part 1
FLASH programming OK
P.A.M.S.
Technical Documentation
Check X102
C114 OK?
YES
R106 OK?
YES
Change N100
MBUS
registration
OK?
Power
stays on?
NO
NO
NO
VBATT
pins 4, 16 ?
YES
N100/pin 8/XRESET
+5 V after pwr on?
YES
YES
Display:
selftest failed
YES
3
Display:
selftest failed
YES
MBUS line X100/5
+5 V after pwr on?
YES
NO
NO
D250/MCU/pin 3
D300/ASIC/pin 97
rstrobe
Short circuits in data
data lines. data line
disconnected, VREF
unconnected
NO
R263
+ 5 V?
YES
V250 base
∼1 V
YES
Check R257
R260, R258,
V250, R268,
R270
If D250 at
NO
pin 66/TXD
doesn’t apply
+5 V change
NO
R262, R263
V250, V251
D250
Check
Page 6
Power supp. to the logic
circuits +5 V after pwr on?
NO
Change N100
MCU/D250/PIN67/RDX
+5 V after pwr on ?
NO
If R259 is OK
change D250
YES
2
YES
Change first
D250
Original 08/97
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