Related Manuals for Nokia NSE-1 Series
Summary of Contents for Nokia NSE-1 Series
- Page 1 PAMS Technical Documentation NSE–1 Series Transceivers Disassembly & Troubleshooting Instructions Original 03/98...
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Page 2: Table Of Contents
NSE–1 PAMS Disassembly & Troubleshooting Instructions Technical Documentation CONTENTS Page No Disassembly ......... Trouble Shooting . -
Page 3: Disassembly
NSE–1 PAMS Technical Documentation Disassembly & Troubleshooting Instructions Disassembly Remove battery Remove dust cap by fingernail Press strongly towards arrow direction Carefully remove A–cover Note snap fixings ! Remove back cover screws (4 pcs) Remove C–cover Original 03/98 Page 3... - Page 4 NSE–1 PAMS Disassembly & Troubleshooting Instructions Technical Documentation Remove UI–module screws (2 pcs) Remove UI–module and frame Remove engine module screw (1 pc) Remove engine module Remove RTC–battery Remove antenna by pulling it straight out Remove microphone Original 03/98 Page 4...
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Page 5: Trouble Shooting
NSE–1 PAMS Technical Documentation Disassembly & Troubleshooting Instructions Trouble Shooting The following hints should facility finding the cause of the problem when the circuitry seems to be faulty. This trouble shooting instruction is di- vided following section. 1. Phone is totally dead 2. -
Page 6: Phone Is Totally Dead
NSE–1 PAMS Disassembly & Troubleshooting Instructions Technical Documentation Phone is totally dead This means that phone doesn’t take current at all when the power switch is pressed or when the watchdog disable pin (N100 pin 29) is grounded. Used battery voltage must be higher than 3.0 V. Otherwise the hardware of CCONT (N100) prevents totally to switch power on. - Page 7 NSE–1 PAMS Technical Documentation Disassembly & Troubleshooting Instructions The test procedure is following: 1. Connect the short circuit wire between the test points J229 and J230. 2. Switch power on 3. If the voltage level in testpoint J225 is 2.8 V (”1”), the interface is OK. If there is a short circuit, the voltage level in testpoint J225 stays low and 32kHz...
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Page 8: Flash Programming Failure (1)
NSE–1 PAMS Disassembly & Troubleshooting Instructions Technical Documentation Flash Programming failure (1) Flash programming doesn’t work If the fault information from the prommer is: a) MCU doesn’t boot b) serial data line failure c) serial clock line failure connect: connect the shortcircuit fire from N100 pin 29 to ground (watchdog) EEPROM (D240) pin 8 (VBB) 2.8 V VBAT is correct J522 (VXO) 2.8 V... -
Page 9: Flash Programming Failure (2)
NSE–1 PAMS Technical Documentation Disassembly & Troubleshooting Instructions Flash Programming failure (2) Flash progrmming doesn’t work If the fault information from the prommer is: External RAM fault Check pins of SRAM (D220) Check control lines of SRAM: RAMSelX ... Flash progrmming doesn’t work If the fault information from the prommer is: Algorithm file or alias ID don’t find, ID is un- known etc. -
Page 10: Power Doesn't Stay On, Or Phone Is Jammed
NSE–1 PAMS Disassembly & Troubleshooting Instructions Technical Documentation Power doesn’t stay on, or phone is jammed If this kind of fault has come after flash programming, there are most probably open pins in ICs. The soldered joints of ICs: D200 (MAD2), D210 (FLASH), N100 (CCONT), D221 (SRAM) are useful to check at first. -
Page 11: Display Information: Contact Service
NSE–1 PAMS Technical Documentation Disassembly & Troubleshooting Instructions Display Information: Contact Service This fault means that software is able to run and thus the watchog of CCONT (N100) can be served. Selftest functions are run when power is switched on and software is started to excute from flash. - Page 12 NSE–1 PAMS Disassembly & Troubleshooting Instructions Technical Documentation constants download init patch code initialize download initialization done MAD2 pin 91 (DSPXF) J222 search last PSW channel synchronization scan starts MAD2 pin 91 (DSPXF) J222 go SDCCH send RACH imediate assigment RACH OK MAD2 pin 91 (DSPXF) J222...
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Page 13: Phone Register Failure
NSE–1 PAMS Technical Documentation Disassembly & Troubleshooting Instructions Phone register failure Phone doesn’t register to the network phone doesn,t make a call Check Analog supply voltage VCOBBA is >2.7 V N100 at pin 7,12 ... of Cobba (N250) Check Analog reference voltage Vref is 1.5 V R270, R271 at pin 9 of Cobba (N250) Supply voltage VCP (N100 pin 32) >... -
Page 14: Sim Card Is Out Of Order
NSE–1 PAMS Disassembly & Troubleshooting Instructions Technical Documentation SIM card is out of order The hardware of the SIM interface from MAD2 (D200) to the SIM connec- tor (X302) can be tested without SIM card. When the power is switched on and if the BSI line (X101;1) is grounded by resistor, all the used lines (VSIM, RST, CLK, DATA) rises up to 5 V four times. -
Page 15: Sim Card Failure
NSE–1 PAMS Technical Documentation Disassembly & Troubleshooting Instructions SIM Card failure Insert SIM card fault Check Voltage level < 1.5 V R120, R122, X101 at pin 95 of D200 when C120, C160 BSI resistor is connected VSIM, DATA, RESET and CLOCK lines Check rises up to 5 V after power on at pins SIM card and SIM reader... -
Page 16: Audio Failure (1)
NSE–1 PAMS Disassembly & Troubleshooting Instructions Technical Documentation Audio failure (1) Uplink (microphone) and downlink (earphone) are broken Voltage at pin 107 of MAD2 (D200) Check is 2.8 V (without external audio de- R259, R260 vices) HOOKDET Voltage at pin 108 of MAD2 (D200) Check is 2.8 V (without external audio de- R257, R256, R261... -
Page 17: Audio Failure (2)
NSE–1 PAMS Technical Documentation Disassembly & Troubleshooting Instructions Audio failure (2) Downlink (earphone) is broken Digital PCM data at pin 52 of Cobba (N250) Check during a call D200 (MAD2) Check DC voltage at pins 5 and 6 of N250 (Cobba) N250 is 1.4 V during a call Check Analog audio signal (some ten millivolts) at pins 5 and... -
Page 18: Charger Failure
NSE–1 PAMS Disassembly & Troubleshooting Instructions Technical Documentation Charger failure Nothing happens when charger is connected Voltage level at pin 60 of CCONT (N100) Check is higher than 0.4 V when charger is con- X100, F100, L104 nected R104, R103 Check N100 Display Information: Not charging Check... -
Page 19: Receiver Fault (1)
NSE–1 PAMS Technical Documentation Disassembly & Troubleshooting Instructions Receiver Fault (1) Original 03/98 Page 19... -
Page 20: Receiver Fault (2)
NSE–1 PAMS Disassembly & Troubleshooting Instructions Technical Documentation Receiver Fault (2) Original 03/98 Page 20... -
Page 21: Receiver Fault (3)
NSE–1 PAMS Technical Documentation Disassembly & Troubleshooting Instructions Receiver Fault (3) Original 03/98 Page 21... -
Page 22: Receiver Fault (4)
NSE–1 PAMS Disassembly & Troubleshooting Instructions Technical Documentation Receiver Fault (4) COBBA Check VCOBBA–voltage from N250 pin 7,12,21,25 and 63, CCONT pin 22 ~2.8V Check VBB–voltage from N250 pin 27 and 53, ~2.8V CCONT pin 55 Check VREF–voltage from N250 pin 9, CCONT pin 13 through R253 ~1.5V Check soldered joints and... -
Page 23: Receiver Fault (5)
NSE–1 PAMS Technical Documentation Disassembly & Troubleshooting Instructions Receiver Fault (5) UHFLO G530 VCC–pin voltage, 2.8V Check VSYN_1–line and R530 Check soldered joints G530 VC(J500) voltage at G530, N620 and components in VC–line ~2.25V (Mid CH) Change G530 Does G530 oscillate at Change G530 any frequency Check C633 and... - Page 24 VHFLO Does the VCO oscillate at any N620 pin 18, ~2.3V frequency ? Check VSYN_2(J508) V581 collector, Check VSYN_1(J516) supply N620 9,22 and 25, ~2.8V supply voltage ~2.6V voltage line to V581 Check R581, R585 and Check VCP voltage line N620 17 and 28, ~5V V581 base, ~1.7V soldered joints...
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Page 25: Receiver Fault (6)
Receiver RSSI tuning working OK ? Fault N250 pin 19, Check AFC–line(J520) for N250 pin 19, loading > 1 M Ω short circuits, if OK change voltage between 0.5 – 2.3V Set SpectrumAnalyzer Change N620 Frequency: 13 MHz Span: 10 kHz RESBW: 3 kHz Use sevice software to set AFC 13 MHz in midst,... -
Page 26: Transmitter Fault (1)
NSE–1 PAMS Disassembly & Troubleshooting Instructions Technical Documentation Transmitter Fault (1) Original 03/98 Page 26... - Page 27 Transmitter TXLEV5 Z505 input, Check Z505 input for short Z505 input, loading > 1 M Ω circuits, if OK change Z505 SL: – 23 dBm Z505 output, Check Z505 output for short Z505 output, Check C700 loading > 1 M Ω circuits, if OK change Z505 SL: –29 dBm Check V640 limiter circuit...
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Page 28: Transmitter Fault (2)
NSE–1 PAMS Disassembly & Troubleshooting Instructions Technical Documentation Transmitter Fault (3) Power Control TXLEV5 Transmitter Transmitter working OK Fault N250 pin 11, Check TXC – line from N250 TXC – pulse OK pin 17, if OK change N250 N620 pin 11 and 12 pulses V550 anode, Check VSYN_1 voltage are about the same... - Page 29 NSE–1 PAMS Technical Documentation Disassembly & Troubleshooting Instructions Appendix A Picture 1. COBBACLK – signal Picture 2. 13 MHz Main clock – signal Original 03/98 Page 29...
- Page 30 NSE–1 PAMS Disassembly & Troubleshooting Instructions Technical Documentation Appendix B Picture 3. SCLK – signal Picture 4. SDATA – signal Picture 5. SENA1 – signal Original 03/98 Page 30...
- Page 31 NSE–1 PAMS Technical Documentation Disassembly & Troubleshooting Instructions Appendix C Picture 6. TXQP, TXQN, TXIP and TXIN – signal Picture 7. TXP – signal Picture 8. VTX – signal Original 03/98 Page 31...
- Page 32 NSE–1 PAMS Disassembly & Troubleshooting Instructions Technical Documentation Appendix D Picture 9. TXC – signal (TXLEV5) Picture 10. DET – signal(N620 pin 12) TXLEV5 Original 03/98 Page 32...