Nokia 616, Service Manual, Page: 207 / 284

Nokia Customer Care TF4 Technical Information
Company Confidential TFE-4/RV-1
Issue 2.0 Mar/2005 Copyright
©
2005 Nokia Corporation. Page 8b-3
Company Confidential
ST_TX_IQ_DP_LOOP_TEST ........................................................................................... 37
ST_UPP_REGISTER_VER_TEST .................................................................................... 37
ST_RF_CHIP_ID_TEST ................................................................................................... 38
ST_WARRANTY_TEST .................................................................................................... 38
ST_FLASH_CHECKSUM_TEST ..................................................................................... 38
ST_UEM_CBUS_IF_TEST .............................................................................................. 38
ST_PPM_VALIDITY_TEST .............................................................................................. 38
ST_BACKUP_BATT_TEST ............................................................................................... 39
ST_SIM_LOCK_TEST ...................................................................................................... 38
ST_LPRF_AUDIO_LINES_TEST ..................................................................................... 38
RF Troubleshooting ............................................................................................................... 39
Abbreviations in fault finding charts ....................................................................... 39
Introduction .................................................................................................................... 39
RF Key component placement .................................................................................... 40
RF measurement points ............................................................................................... 41
RF in general ........................................................................................................................... 44
RF Power Supply Configuration ................................................................................. 47
Receiver ................................................................................................................................... 48
General instructions for RX troubleshooting ......................................................... 48
Fault finding chart for the receiver ........................................................................... 52
EGSM (EGSM900) Transmitter ........................................................................................... 54
General instructions for EGSM TX troubleshooting ............................................. 54
TX path of the transmitted EGSM900 signal .......................................................... 55
EGSM900 TX path of Mjoelner RF ASIC ................................................................... 56
Fault finding chart for EGSM900 transmitter ........................................................ 57
GSM1800 (DCS/PCN) Transmitter .................................................................................... 58
General instructions for GSM1800 TX troubleshooting ...................................... 58
Fault finding chart for GSM1800 transmitter ....................................................... 59
TF-4 Synthesizer .................................................................................................................... 60
General instructions for Synthesizer troubleshooting ......................................... 60
26 MHz reference oscillator (VCXO) ......................................................................... 61
VCO .................................................................................................................................... 61
Fault finding chart for PLL Synthesizer .................................................................... 61
Frequency lists ................................................................................................................ 64
List of Figures
Figure 1: Block diagram of the Engine Board ..
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6
Figure 2: State diagram of the UEM
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8
Figure 3: Power states of the TFE-4/RV-1 Radio unit
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11
Figure 4: Baseband power distribution
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Figure 5: UPP architecture
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15
Figure 6: BT102 flash programming
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Figure 7: BT102 HW interface .................................................................................... 17
Figure 8: UPP, UEM and SIM Connections
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