PAMS Technical Documentation NSE–5 Series Transceivers Troubleshooting Issue 1 07/99
NSE–5 Troubleshooting PAMS Technical Documentation Contents Page No Baseband . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1. Phone is totally dead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. Flash programming doesn’t work . . . . . . . . . . . . . . . . . . . . . . . . . . . 3. Power doesn’t stay on or phone is jammed . . . . . . . . . . . . . . . . . . 4. Display Information: Contact Service . . . . . . . . . . . .
NSE–5 PAMS Technical Documentation Troubleshooting TroubleShooting Baseband The following hints should facilitate finding the cause of the problem when the circuitry seems to be faulty. This troubleshooting 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. Display information: Contact Service 5. Phone doesn‘t register to the network or phone doesn‘t make a call. 6.
NSE–5 PAMS Technical Documentation Troubleshooting 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) Measure voltage at C153 Yes 3.6V 3.6V Yes No Failure in VBAT.
NSE–5 PAMS Technical Documentation Troubleshooting 2. Flash programming doesn’t work The flash programming can be done via panel connector X201 or via system connector X200. In production, the first programming is done via panel connector X201. After this, the panel connector is cut away, thus other flash programming must be done via system connector X200. The main differences between these are: a) FLASH programming voltage is produced different way. b) Signal routings are different.
NSE–5 PAMS Technical Documentation Troubleshooting FLASH Programming doesn’t work. Check if fault information from Prommer is one of the following: a) MCU doesn’t boot b) serial dataline failure c) serial clock line failure failure is one of the above mentioned? No A Yes Connect watchdog disable (WDDIS R413 end towards edge) to GND. Check WDDIS line: X201 pin 11 –> R413 end towards edge and R413 other end –> X400 pin 7 No Yes C308 end towards RTC–battery (Vbb) is 2.
NSE–5 PAMS Technical Documentation Troubleshooting B Check that the following lines are OK: FCLK (M–BUS) line: X200 pin 11, X201 pin 3 –> V102 pin 4 FTX (fbus_tx) line: X200 pin 13, X201 pin 1 –> V101 pin 4 FRX (fbus_rx) line: X200 pin 12, X201 pin 2 –> V101 pin 5 (value on all should be 100 ohm) Check also pull–up and –down resistors: R106, R304, R306 GND: X200 pin 14, X201 pin 7 –> GND OK? Repair or defect PCB No Yes Check: D304, D305, D306 OK? No Repair Yes MAD or FLASH faulty. Figure 3.
NSE–5 PAMS Technical Documentation Troubleshooting A External RAM fault? No ID problem? Yes Yes Check pins of SRAM (D302) Check control lines of SRAM: RAMselX ... NO MCU FLASH Vpp Error No Check type of FLASH Check soldering of FLASH (Both FLASHES) Yes Unknown fault. Try phone totally dead. Flashing from X201? No Check R145 and R146 in both ends. Voltage higher than 1.7V during flashing? Yes Check R146 for connection to X201 pin 10 in one end and X201 pin 7 in the other end.
NSE–5 PAMS Technical Documentation Troubleshooting 3. 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: D300 (MAD2Pr1), D301 & D303 (FLASH), N100 (CCONT), D302 (SRAM) are useful to check at first. Normally the power will be switched off by CCONT (N100) after 30 seconds, if the watchdog of the CCONT can not be served by software. Check watchdog is updated.
NSE–5 PAMS Technical Documentation Troubleshooting Power doesn’t stay on or phone is jammed Check X400 pin 13 while X400 pin 2 is high pin 13 pulsing? Yes Software is able to run in phone, check UI–module. If power is switched off after a few seconds, check BSI and BTEMP lines. No Connect R413 end towards edge to GND VBB (C308 end towards RTC batt.) = 2.8V and VXO (C112 end towards bottom) = 2.8V No Vbatt is correct 3.6V Yes Yes C Go To Figure 2. N100 is faulty. Figure 5.
NSE–5 PAMS Technical Documentation Troubleshooting 4. Display Information: Contact Service This fault means that software is able to run and thus the watchdog of CCONT (N100) can be served. Selftest functions are run when power is switched on and software is started to excute from flash. If any of selftests is failed, contact service information will be shown on display. 5.
NSE–5 PAMS Technical Documentation Troubleshooting 2 PSW search last PSW OK channel scan starts MAD2Pr1 pin D8 (DSPXF) synchronizatio OK n J308 The states of DSP after power on Figure 7. 1 init initialize dsp constants download patch code download initializatio done n MAD2Pr1 pin D8 (DSPXF) J308 The states of DSP after power on Figure 8. 3 send RACH RACH OK go SDCCH imediate OK assigment MAD2Pr1 pin D8 (DSPXF) J308 The states of DSP after power on Page 12 Figure 9.
NSE–5 PAMS Technical Documentation Troubleshooting Phone doesn’t register to the network or phone doesn’t make a call Analog supply voltage to COBBA is > 2.7V? (C201) No Check N100 Yes Analog reference to COBBA is 1.5V? (C200) No Check R200, C140, C174 Yes Check: Supply voltage Vcp (C126) > 4.8V Supply voltage VRX (C108) > 2.7V Supply voltage VRX2 (C137) > 2.7V Supply voltage VSYN_2 (C136) > 2.7V during the receiving slot Supply voltage VTX (C141) > 2.
NSE–5 PAMS Technical Documentation Troubleshooting D RF control lines: RxC (R725) 0–>2.3Vmax during receiving slot AFC (C747) 0– 1.2V typ. during receiving slot OK? No Check N200 Yes Analog data signals: RxIP & RxIN 0–>1.5V DC during receiving slot Recieved signal is biased to DC, amplitude 50mVpp nominal and frequency 13MHz OK? No Check N200 if DC fail or RF part Yes RF control lines: TxC (C700) 0–>2.3Vmax during transmit slot TxP (R706) 0–>2.
NSE–5 PAMS Technical Documentation Troubleshooting 6. SIM card is out of order The hardware of the SIM interface from MAD2Pr1 (D300) to the SIM connector (X100) can be tested without SIM card. When the power is switched on and if the BSI line (X102;1) is grounded by resistor, all the used lines (VSIM, RST, CLK, DATA) rises up to 5 V four times. Thus ”Insert SIM card” faults can be found without SIM card.
NSE–5 PAMS Technical Documentation Troubleshooting Card rejected fault VSIM according to spec. 2.8Vmin (3V card) 4.5Vmin (5V card) No Faulty PCB, N100 Yes ATR data can be seen at C131 No Check X100, R120 Yes ATR data can be seen at J325 No Check N100 Yes SIM_IOControl line (J322) is ”1” during ATR message No Check D300 Yes Check N100 Page 16 Figure 13.
NSE–5 PAMS Technical Documentation Troubleshooting 7. Audio Faults 7.1 Uplink/Downlink Problem Uplink and downlink are broken Voltage over C113 (HOOKDET) is 2.8V without external audio devices No Check R113, R112, C113 Yes Voltage over C110 (HEADDET) is 2.8V without external audio devices No Check R110, R109, R108, C110 Yes Frequency at E200 (PCMSclk) is 8kHz square wave logical level during call No Check N200 Yes Check for uplink and for downlink broken Issue 1 07/99 Figure 14.
NSE–5 PAMS Technical Documentation Troubleshooting 7.1 Uplink Problem Uplink is broken Voltage at E101 is 1.8V Voltage at E100 is 0.3V during call Yes Voltage on COBBA side of C117 & C121 is 1.
NSE–5 PAMS Technical Documentation Troubleshooting 7.1 Downlink Problem Downlink broken Voltage on C203 & C204 is 1.4VDC during call No Check C203, C204, C403, C404, C405, X400 and N200 Yes Audio signal on C203 & C204 during call when speaker should emit sound No Check N200 & D300 Yes Is connector on Display assy OK? No Repair or new module Yes Check display module and speaker Figure 16. 8. Charging Faults 8.
NSE–5 PAMS Technical Documentation Troubleshooting 8.2 Display Problem Display information: Not charging Voltage at C119 is about 0.8V, power on, BSI value 39k No Check X102, R115, R123, C119 Yes Voltage at C120 is about 0.
NSE–5 PAMS Technical Documentation Troubleshooting Rf Troubleshooting Measurements should be done using a spectrum analyzer with a high–frequency 500 ohm passive probe (LO–/reference frequencies and RF–powerlevels) and oscilloscope with a 10:1 probe (DC–voltages and low frequency signals). RF–section is mainly built from two ASICS CRFU3 (N600) and SUMMA (N700), external filters, MMIC PA–modules (N500, N501) and two synthesizers.
NSE–5 PAMS Technical Documentation Troubleshooting Figure 2.
NSE–5 PAMS Technical Documentation Troubleshooting GSM Receiver Start WinTesla–Service–Software and Select: Product Band GSM Select: Testing RF Controls RX Continuous Cont. Mode Ch: 60 Front End On Apply a 947.0 MHz (MID channel) –50 dBm signal to RF–connector. This signal is tracked through RX–path and will make the troubleshooting of the RX easier.
NSE–5 PAMS Technical Documentation Troubleshooting Fault finding chart for GSM receiver ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ Á
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NSE–5 PAMS Technical Documentation Troubleshooting PCN Receiver Start WinTesla–Service–Software and Select: Product Band PCN Select: Testing RF Controls RX Continuous Cont. Mode Ch: 700 Front End On Apply a 1842.8 MHz (MID channel) –50 dBm signal to RF–connector. This signal is tracked through RX–path and will make the troubleshooting of the RX easier.
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NSE–5 PAMS Technical Documentation Troubleshooting ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ
NSE–5 PAMS Technical Documentation Troubleshooting ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ Á ÁÁÁÁÁÁÁÁ Á
NSE–5 PAMS Technical Documentation Troubleshooting GSM Transmitter Apply a RF–cable to external RF–connector (X501) to allow the transmitted signal act as normal. RF–cable should be connected to measurement equipment or to at least a 10 dB attenuator, otherwise the PA may burn.
NSE–5 PAMS Technical Documentation Troubleshooting Fault finding chart for GSM transmitter ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
NSE–5 PAMS Technical Documentation Troubleshooting ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
NSE–5 PAMS Technical Documentation Troubleshooting PCN Transmitter Apply a RF–cable to external RF–connector (X501) to allow the transmitted signal act as normal. RF–cable should be connected to measurement equipment or to at least a 10 dB attenuator, otherwise the PA may burn.
NSE–5 PAMS Technical Documentation Troubleshooting Fault finding chart for PCN transmitter ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
NSE–5 PAMS Technical Documentation Troubleshooting ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
NSE–5 PAMS Technical Documentation Troubleshooting ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
NSE–5 PAMS Technical Documentation Troubleshooting VHF VCO The 464 MHz VHF VCO (G702) signal is used to generate the 116 MHz– and 232 MHz signals inside SUMMA. The 116 MHz signal is used in GSM transmitter and in PCN receiver. The 232 MHz signal is used in PCN transmitter.
NSE–5 PAMS Technical Documentation Troubleshooting ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
NSE–5 PAMS Technical Documentation Troubleshooting ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ
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