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NHM-3 Trouble Shooting PAMS Technical Documentation 7DEOH RI &RQWHQWV 3DJH 1R Trouble Shooting .................................................................................................1 Trouble Shooting............................................................................................................ 4 Baseband ......................................................................................................................4 Phone is totally dead .....................................
PAMS Technical Documentation NHM-3 Trouble Shooting Wintesla Tuning................................................................................................................40 Which RF to tune after repairs ...................................................................................40 RX Calibration ...........................................................................................................41 RX Filter Calibration (Automatic) ....................................................
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NHM-3 Trouble Shooting PAMS Technical Documentation Flash programming (1) Flash programming doesn’t work If fault information from Prommer is: a) MCU doesn’t boot b) Serial dataline failure c) Serial clock line failure No See section: (2) Yes Connect J102 (WDDIS) to GND. Yes No J109 (VBB) = 2.8V J106 (VXO) = 2.8V See section: "Phone is dead" Yes J101 (PURX) = "1" (2.8V) after 60ms No Check J113 (SLEEPCLK) = 32KHz square wave No Check sleepclock circuit: B110, R111,...
NHM-3 Trouble Shooting PAMS Technical Documentation Flash programming (2) Flash programming doesn’t work External RAM fault Yes No Check for activity on control lines of SRAM: J324 (RAMselX),... Yes Faulty D310 SRAM No Faulty D301 MAD2 Algorithm file or alias ID not found Yes Check type of Flash No MCU Flash Vpp Error No Yes Flashing via X200 Yes No Check Vpp line: X200 pin 10 -> R100 -> C349. Check D100 No Faulty PCB Voltage at R100 higher than 1.
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NHM-3 Trouble Shooting PAMS Technical Documentation 1 d constan downloa i initia patch downloa initializa don MAD2 (DSPXF) J314 2 PSW searc last O chann scan synchronizati O MAD2 (DSPXF) J314 3 send RACH RACH OK go SDCCH imediate O MAD2 (DSPXF) J314 2ULJLQDO 1RNLD 0RELOH 3KRQHV /WG 3DJH
NHM-3 Trouble Shooting PAMS Technical Documentation Phone doesn’t register to the network... Phone doesn’t register to the network or phone doesn’t make a call No C254 (VCOBBA) > 2.7V Check N102 CCONT Yes No C240 (Vref) = 1.5V Check C144, C240, R240 Yes Check supply voltage, during RX slot: C157 (VCP) > 4.8V C137 (VRX) > 2.7V C131 (VSYN_1) > 2.7V C133 (VSYN_2) > 2.7V - during TX slot: C142 (VTX) > 2.
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NHM-3 Trouble Shooting PAMS Technical Documentation SIM card rejected fault (2) "SIM card rejected" VSIM according to spec.: 2,8V min. (3V SIM card) 4,5V min.
NHM-3 Trouble Shooting PAMS Technical Documentation Audio faults Earpiece doesn’t work and there isn’t any mechanical problem Microphone doesn’t work and there isn’t any mechanical problem Check R247, C248, C249,C246,C247 C233 towards SRAM (bias) = 2.
NHM-3 Trouble Shooting PAMS Technical Documentation &KDUJHU IDLOXUH No t h in g h ap p en s w h en c h ar g er is c o n n ec ted YES R103 t o w ar d s C101 (VCHA R, N102) > 0.4 V w h en c h ar g er is c o n n ec ted Ch ec k NO X100, F101, L 101 R102, R103 YES N102 is fau l ty Dis p lay In f o r m ati o n : “ N o t c h ar g in g ” YES R121 t o w ar d s C127 (B SI, N 102) ≈ 0.8 V w h en p o w er is c o n n ec ted .
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NHM-3 Trouble Shooting PAMS Technical Documentation RF Key Component placement ([W $QWHQQD &RQQ (*60 /1$ VW 5;6$:V 3&1 /1$ Power Amp.
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NHM-3 Trouble Shooting PAMS Technical Documentation VB HAGAR R RF TEMP SENSOR RFTEMP GNDRF_TX GND_BB / GNDRF_RX / GND_LO / GND_PRE / GND_CP / GND_DIG / GND_RX TXI_0/ TXQ_0/T 2 TXI_0/TXI_180 2 2 VLO TXQ_0/TXQ_180 2 2 VPRE RDIV ϕ 0-40dB charge pump C1_BB1_Q C2_BB1_Q BB_Gain VF_RX 1/2 OUT_BB1_I OUT_BB1_Q I_DCN2_I I_DCN2_Q VB_EXT 0-40dB VBB TOUT OSC_IN AFC 26MHz 3dB VCO VCP/GND_CP 2 VDIG DNC2 2 OUT_CP loop filter INP_LO/INM_LO VREF_RX RXQ RXI DNC2 RB_EXT BB_Gain 2 V V 5) L
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NHM-3 Trouble Shooting PAMS Technical Documentation )DXOW ILQGLQJ FKDUW IRU (*60 UHFHLYHU (*60 5HFHLHYHU )DXOW 7UHH 946.267MHz signal from generator to antenna connector Yes Oscilloscope at RXI Signal 680 mVpp DC offset 1,1V Frequency 67,7kHz No Spectrumanalyzer Spectrumanalyzer 1st EGSM SAW No V700, RFout out -60dBm -78dBm Change generator Yes level to -55dBm GSM_RX -77 dBm No Yes Yes Oscilloscope LNA_G 2.4-2.8V LNAB_G 0V Yes EGSM chain functional No Oscilloscope VRX 2.
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NHM-3 Trouble Shooting PAMS Technical Documentation 3&1 6LJQDO 3DWK For easy error tracing it is important to know the signal path of the PCN receiver. The components can be grouped into blocks and drawn as shown below.
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NHM-3 Trouble Shooting PAMS Technical Documentation )DXOWILQGLQJ &KDUW IRU (*60 WUDQVPLWWHU Oscilloscope R515 R810 & R811 C524 C500 C504 C513 Yes Oscilloscope R516 & C525 R516 & C525 R513 & C525 R513 & C525 Yes Oscilloscope R803 & C807 PA N800, pin 2 PA N800, pin 1 C802 Yes Spectrum analyser C821 & L806 Power > 0 dBm, 897,6 MHz Yes Spectrum analyser C818 & R820 Power > -3 dBm, 897,6 MHz Yes Spectrum analyser C809 & Z800 Power > +4 dBm, 897,6 MHz Yes Spectrum analyser PA N800, pin 8 Power > +1 dBm, 897,6
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NHM-3 Trouble Shooting PAMS Technical Documentation )DXOW ILQGLQJ FKDUW IRU 3&1 WUDQVPLWWHU Oscilloscope R515 R810 & R811 C524 C500 C511 C513 Yes Oscilloscope R516 & C525 R516 & C525 R513 & C525 R513 & C525 Yes Oscilloscope R802 & C829 PA N800, pin 2 PA N800, pin 1 C802 Yes Spectrum analyser C819 & C823 Power > 0 dBm, 1747,6 MHz Yes Spectrum analyser C828 & Z800 Power > +6 dBm, 1747,6 MHz Yes Spectrum analyser PA N800, pin 8 Power > +3 dBm, 1747,6 MHz Yes Use Wintesla to select TX_Data Type: Random TX Pow
NHM-3 Trouble Shooting PAMS Technical Documentation 6\QWKHVLVHU 7KHUH LV RQO\ RQH 3// V\QWKHVLVHU JHQHUDWLQJ IUHTXHQFLHV IRU ERWK 5[ DQG 7[ LQ ERWK EDQGV 3&1 DQG *60 9&2 IUHTXHQF\ LV GLYLGHG E\ RU E\ LQ +$*$5 GHSHQGLQJ RQ ZKLFK EDQG LV DFWLYH *HQHUDO LQVWUXFWLRQV IRU 6\QWKHVLVHU WURXEOHVKRRWLQJ $FWLRQ .H\VWURNHV Start Wintesla-Service-Software and Select: Product Alt+p Band b EGSMe Select:Testing Alt+e RF Controls r RX Continuous Alt+r Cont.
NHM-3 Trouble Shooting PAMS Technical Documentation )DXOW ILQGLQJ FKDUW IRU 3// 6\QWKHVLVHU From WinTesla chose: Product > Band > EGSM Testing > RF Controls > Rx continuous > Ch 60 Spectrum Analyzer Oscilloscope Oscilloscope No VCO output ( G600 out) 3788 MHz VCO Power Supply (G600 Vcc) 2,7 V No Check CCONT, Software?? Phone not in function Yes Yes VCTCXO output (G602 out) 26 MHz, approx. 0.
NHM-3 Trouble Shooting PAMS Technical Documentation 3// %ORFN GLDJUDP 2 2 2 2 1/4 VCP INP_LO/INM_LO 1/2 2 2 2 NDIV ADIV 64/65 2 ϕ OUT_CP loop filter charge pump VCO 2 VDIG 4 4 1/2 OSC_IN RDIV 4 VXO AFC AFC 26MHz 1/2 4 3dB VSYN_1 VCP/GND_CP 1/4 TOUT RFC VBB VF_RX VSYN_2 VPRE VLO CTRL SLE SCLK SDATA Last edit 13:45 07-02-00 Drawing12 3DJH Reset 1RNLD 0RELOH 3KRQHV /WG SLE SCLK SDATA HAGARRESET 2ULJLQDO
NHM-3 Trouble Shooting PAMS Technical Documentation )UHTXHQF\ OLVWV (*60 CH TX RX VCO TX VCO RX 975 880.2 925.2 3520.8 3700.8 976 880.4 925.4 3521.6 3701.6 977 880.6 925.6 3522.4 3702.4 978 880.8 925.8 3523.2 3703.2 979 881 926 3524 3704 980 881.2 926.2 3524.8 3704.8 981 881.4 926.4 3525.6 3705.6 982 881.6 926.6 3526.4 3706.4 983 881.8 926.8 3527.2 3707.2 984 882 927 3528 3708 985 882.2 927.2 3528.8 3708.8 986 882.4 927.4 3529.6 3709.6 987 882.6 927.6 3530.4 3710.4 988 882.8 927.8 3531.2 3711.
NHM-3 Trouble Shooting PAMS Technical Documentation 3&1 CH Frequency list NPE-3 PCN RX VCO TX VCO RX CH TX 1824 3458 3648 700 1747,8 1824,2 3458,4 3648,4 701 1748 1824,4 3458,8 3648,8 702 1748,2 1824,6 3459,2 3649,2 703 1748,4 1824,8 3459,6 3649,6 704 1748,6 1825 3460 3650 705 1748,8 1825,2 3460,4 3650,4 706 1749 1825,4 3460,8 3650,8 707 1749,2 1825,6 3461,2 3651,2 708 1749,4 1825,8 3461,6 3651,6 709 1749,6 1826 3462 3652 710 1749,8 1826,2 3462,4 3652,4 711 1750 1826,4 3462,8 3652,8 712 1750,2 1826,6 346
NHM-3 Trouble Shooting PAMS Technical Documentation Wintesla tuning 3ULRU WR DQ\ WXQLQJ WKH SKRQH VKRXOG EH LQLWLDOLVHG $FWLRQ .
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PAMS Technical Documentation NHM-3 Trouble Shooting &OLFN 2.
NHM-3 Trouble Shooting PAMS Technical Documentation Change the level and frequency on the generator as the window tells you. Click OK in the Wintesla window, now a new window pops up: 5 6 7 8 71.53 81.53 91.53 100.61 Click Save in the Wintesla window, RX Calibration is now completed.
NHM-3 Trouble Shooting PAMS Technical Documentation 5; )LOWHU &DOLEUDWLRQ $XWRPDWLF This calibration is calibrating the Baseband filter inside Hagar, for this reason the calibration is not done in both bands. $FWLRQ .
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NHM-3 Trouble Shooting PAMS Technical Documentation NOTE: When using channel 38 for tuning, use Frequency 952.600 MHz for AM signal. &RQQHFW DQ H[WHUQDO JHQHUDWRU WR WKH DQWHQQD FRQQHFWRU RI WKH SKRQH DQG VHW XS WKH JHQHUDWRU &OLFN 2.
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NHM-3 Trouble Shooting PAMS Technical Documentation 7; 3RZHU WXQLQJ This tuning must be done in both bands. Note: TX Power tuning must be done with a peak power meter, e.g. Rohde & Schwarz model NRVD with a Rohde & Schwarz Peak Power Sensor TDMA Model NRV-Z31 and a suitable attenuator. The use of power meter in GSM testers is likely to cause larger error than the use of a dedicated power meter and might cause the phone to be non-compliant with GSM specifications.
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NHM-3 Trouble Shooting PAMS Technical Documentation 7; , 4 7XQLQJ This tuning must be done in both bands ,QLWLDO VHW XS (*60 $FWLRQ Select: Product .
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