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PAMS
Technical Documentation
NSE–5
Troubleshooting
Page 4
Issue 1 07/99
1. Phone is totally dead
This means that phone doesn’t take current at all when the power switch
is pressed (X400 pin 7) or when the watchdog disable pin (X201 pin 11) is
grounded. Used battery voltage must be higher than 3.1 V. Otherwise the
hardware of CCONT (N100) prevents totally to switch power on.
Phone is totally dead.
Measure voltage at
C155 (VBAT)
3.6V
Measure voltage at
C153
3.6V
Power doesn’t stay on.
No
Yes
Yes
No
Failure in VBAT.
Check X101, X102,
L103, L102, R102
Measure voltage at R413 (end
towards edge) when pwr–switch
(X400 pin 7) is pressed or
WDOGDISABLE (X201 pin 11)
is grounded.
0V
(Will be low only during
power–up of CCONT if
power switch is pressed.)
Measure voltage at V113 pin 4
(Vbb) 2.8V
C112 (end towards bottom) (VXO)
2.8V
When PWR switch is pressed or
WDOGDISABLE is grounded.
Voltages OK?
No
Yes
Check R413, V410
Check LCD–module
Check WDOGDISABLE line
Yes
No
Faulty PCB
Faulty PCB
Figure 1.
Содержание NSE-5 Series
Страница 5: ...PAMS Technical Documentation NSE 5 Series Transceivers Issue 1 07 99 Chapter 1 General Information...
Страница 15: ...NSE 5 Series Transceivers PAMS Technical Documentation Issue 1 07 99 Chapter 2 System Module...
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Страница 97: ...PAMS Technical Documentation Issue 1 07 99 Mechanical Assembly...
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Страница 101: ...NSE 5 Series Transceivers PAMS Technical Documentation Issue 1 07 99 Service Software Instructions...
Страница 195: ...NSE 5 Series Transceivers PAMS Technical Documentation Issue 1 07 99 Service Tools...
Страница 219: ...PAMS Technical Documentation NSE 5 Series Transceivers Issue 1 07 99 Disassembly Instructions...
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Страница 227: ...NSE 5 Series Transceivers PAMS Technical Documentation Issue 1 07 99 Troubleshooting...
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Страница 267: ...PAMS Technical Documentation Original 11 97 HFU 2 Handsfree Unit...
Страница 274: ...PAMS Technical Documentation HFU 2 Handsfree Unit Page 8 Original 11 97 Exploded View of HFU 2 3 2 4 5 1...
Страница 281: ...NS 3 5 Series Transceivers PAMS Technical Documentation Issue 1 07 99 Non Serviceable Accessories...
Страница 303: ...Programmes After Market Services NSE 5 Series Transceivers Issue 1 07 99 CARK 64 91 Installation Guides...
Страница 316: ...NSE 5 Schematics Layouts V13 A 2 Page Draft 05 RF and BB Interconnections...
Страница 317: ...NSE 5 Schematics Layouts V13 A 3 Page Draft 05 Baseband Block...
Страница 318: ...NSE 5 Schematics Layouts V13 A 4 Page Draft 05 Audio...
Страница 319: ...NSE 5 Schematics Layouts V13 A 5 Page Draft 05 CPU...
Страница 320: ...NSE 5 Schematics Layouts V13 A 6 Page Draft 05 Infrared Module...
Страница 321: ...NSE 5 Schematics Layouts V13 A 7 Page Draft 05 Power...
Страница 322: ...NSE 5 Schematics Layouts V13 A 8 Page Draft 05 5 S oft left E nd 3 1 7 2 S end 6 9 0 8 4 S oft right User Interface...
Страница 323: ...NSE 5 Schematics Layouts V13 A 9 Page Draft 05 CRFU3...
Страница 324: ...NSE 5 Schematics Layouts V13 A 10 Page Draft 05 PA...
Страница 325: ...NSE 5 Schematics Layouts V13 A 11 Page Draft 05 SUMMA...
Страница 326: ...NSE 5 Schematics Layouts V13 A 12 Page Draft 05 Component Layout Top...
Страница 327: ...NSE 5 Schematics Layouts V13 A 13 Page Draft 05 Component Layout Bottom...