Service Manuals, User Guides, Schematic Diagrams or docs for : NOKIA Mobile Phone 3390-3390b-3395 trouble
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NPB-1NB
Troubleshooting PAMS Technical Documentation
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Baseband Troubleshooting ................................................................................5
Baseband Testpoints ...................................................................................................... 5
Power Schematic - Plots ..............................................................................................8
CPU Schematic - Plots .................................................................................................9
Fault Finding Charts..................................................................................................... 10
1. Phone is Dead ........................................................................................................10
2. Flash Programming Does Not Work ....................................................................10
3. Phone Stays On or is Jammed ..............................................................................13
4. Display Information : "Contact Service" ...............................................................14
5. No Network Found, No Call Established ..............................................................16
6. Phone Not Registering to a Network ....................................................................17
7. Sim Related Errors ................................................................................................18
8. Audio Faults ...........................................................................................................20
9. Charging Error .......................................................................................................22
Baseband Plots ............................................................................................................. 23
Plot1: RFC in Normal Operation ..............................................................................23
Plot 2: Power Up with ACP-7U .................................................................................24
Plot 3: Power up with ACP-8U .................................................................................25
Plot 5: Power up with a power variable power supply ..............................................27
Plot 6: Power up with Power switch (PWRONx) ......................................................28
Plots 7,8,9,10: PCM Clock Tests ...............................................................................29
RF Troubleshooting...........................................................................................32
Introduction.................................................................................................................. 32
Basic Controls with Wintesla....................................................................................... 32
Selecting the Phone and the Operating Band ............................................................32
RF Controls ...............................................................................................................33
Tuning the Phone ......................................................................................................... 34
RX Tuning .................................................................................................................34
TX Tuning .................................................................................................................40
Receiver Fault Finding................................................................................................. 44
General .......................................................................................................................44
Hagar ..........................................................................................................................44
LNA ...........................................................................................................................44
RX-filters ...................................................................................................................44
Antenna Switch ..........................................................................................................45
Transmitter Fault Finding ............................................................................................ 45
General .......................................................................................................................45
Antenna Switch ..........................................................................................................45
PA-Module, Directional Coupler and Power Detector ..............................................45
HAGAR ....................................................................................................................46
Synthesizer Fault Finding ............................................................................................ 46
General .......................................................................................................................46
VCTCXO ...................................................................................................................46
VCO ...........................................................................................................................46
RF Testpoints ............................................................................................................... 47
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NPB-1NB
PAMS Technical Documentation Troubleshooting
Measuring Points .......................................................................................................48
RX ..............................................................................................................................48
TX ..............................................................................................................................49
VCO ...........................................................................................................................50
VCTCXO ...................................................................................................................51
Other checking points ...............................................................................................51
Measurement Points -Waveforms ..............................................................................52
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Troubleshooting PAMS Technical Documentation
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PAMS Technical Documentation Baseband Troubleshooting
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Testpoint Net Name Condition DC-level AC-level
General
R350 VPP Flash or emulated Nominal 2.8 V
EEPROM write Min 1.7V, max 2.85
V
J200 CCONTC Active State Pulsed active 0V
SX Normal state 2.8 V
J212 PURX Powe Reset state 0V
r up/down Normal state 2.8 V
R224 PWRON PWRONX Power on Reset state 0V
/ Normal state 2.8 V
WDDISX
R217 FBUS_TX FBUS(1) Power on Pulsed DC
(0V to 2.8V)
R217 FBUS_RX FBUS(0) Power on Pulsed DC
(0V to 2.8V)
V204 MBUS Power on Pulsed DC
(0V to 2.8V)
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NPB-1NB
Baseband Troubleshooting PAMS Technical Documentation
Testpoin Net Name Condition DC-level AC-level
t
Power supplies
C201 VB Active state Nominal 3.6V
(baseband) Min 3.0V, max 4.2V
C241 VRX Active state 2.8V
Min 2.7V, max
2.85V
C243 VXO Active state 2.8V
Min 2.7V, max
2.85V
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