Nokia Thf13, 640 Troubleshooting Instructions 08
PAMS Technical Documentation
THF–13 Series Transceivers
Troubleshooting
Instructions
Issue 1 08/99 Nokia Mobile Phones Ltd.
THF–13
Troubleshooting Instructions
AMENDMENT RECORD SHEET
PAMS Technical Documentation
Amendment
Number
Date Inserted By Comments
08/99 OJuntune Issue 1
Page 2
Nokia Mobile Phones Ltd.
Issue 1 08/99
PAMS Technical Documentation
Troubleshooting Instructions
CONTENTS
Troubleshooting Instructions 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment Setup For Tuning A Phone
With Covers Removed 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Phone is totally dead 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flash programming doesn’t work 6. . . . . . . . . . . . . . . . . . . . . . .
Flash Programming (1) 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flash Programming failure (2) 8. . . . . . . . . . . . . . . . . . . . . . .
Power doesn’t stay on, or phone is jammed 9. . . . . . . . . . . . . .
Audio fault 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charger fault 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Receiver Fault 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
THF–13
Page No
Transmitter fault 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Issue 1 08/99
Nokia Mobile Phones Ltd.
Page 3
THF–13
Troubleshooting Instructions
Troubleshooting Instructions
The following hints should facility finding the cause of the problem when
the circuitry seems to be faulty. This trouble shooting instruction is divided following section.
1. Phone is totally dead
2. Flash programming doesn‘t work
3. Power doesn‘t stay on or the phone is jammed
4. Audio fault.
5. Charging fault
6. Receiver fault
7. Transmitter fault
The first thing to do is carry out a through visual check of the module. En-
sure in particular that:
a) there are not any mechanical damages
b) soldered joints are OK
PAMS Technical Documentation
Page 4
Nokia Mobile Phones Ltd.
Issue 1 08/99
PAMS Technical Documentation
Troubleshooting Instructions
Equipment Setup For Tuning A Phone With Covers Removed
+4.1 V
8.
3.
9.
THF–13
1.
3.6V
5.
Item: Service accessory: Type Code:
1 Test frame * JBS–24 0770167
2 Modular T-Connector 4626134
3 DC Cable PCS–1 0730012
4 Antenna Cable XRC–1B 0730128
5 Service Cable SCH-5 0730098
6 Service MBUS Cable DAU–9S 0730108
7 Audio Cable ADS-1 0730011
8 Software protection key PKD-1 0750018
9 Service Software diskette 3.5” 0774112
WinTesla Service application 0774046
4.
6.
7.
2.
*) The nominal operating voltage for the JBS is 3.6 V.
Issue 1 08/99
Nokia Mobile Phones Ltd.
Page 5
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