User Guide

Table of Contents
FMTx 2.0 schematic ................................................................................................................................................7–5
FMTx 2.0 component layout ..................................................................................................................................7–5
FMTx 2.0 PWB traces ..............................................................................................................................................7–6
Access to signals.....................................................................................................................................................7–7
Specific digital and power supply test points .....................................................................................................7–7
FMTx2.0 specific RF test points .............................................................................................................................7–8
Specific clock test points........................................................................................................................................7–8
General visual inspection guidelines....................................................................................................................7–9
FMTx2.0 troubleshooting.................................................................................................................................... 7–10
FMTx2.0 antenna visual inspection troubleshooting ...................................................................................... 7–11
FMTx2.0 audio path visual inspection troubleshooting.................................................................................. 7–12
FMTx2.0 Si4713 visual inspection troubleshooting ......................................................................................... 7–13
Checking validity of signals................................................................................................................................ 7–13
FMTx2.0 troubleshooting faults......................................................................................................................... 7–13
Phoenix PC tool.................................................................................................................................................... 7–14
List of Tables
Table 12 Bus mode selection truth table.............................................................................................................7–8
Table 13 I2C 7-bit bus address selection summary ............................................................................................7–8
Table 14 Left and right audio self test truth table........................................................................................... 7–17
List of Figures
Figure 43 FMTx 2.0 schematic ...............................................................................................................................7–5
Figure 44 FMTx 2.0 Component References and Location..................................................................................7–5
Figure 45 FMTx 2.0 layout (Layer 10) ...................................................................................................................7–6
Figure 46 Access to signals....................................................................................................................................7–7
Figure 47 FMTx panel before connection to the handset................................................................................ 7–15
Figure 48 FMTx panel after connection to the handset................................................................................... 7–15
Figure 49 FMTx panel in action .......................................................................................................................... 7–17
RM-348; RM-349; RM-350
FMTx 2.0 Troubleshooting
Issue 2 COMPANY CONFIDENTIAL Page 7 –3
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