Nokia RM-235 Service Manual page 173

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RM-235
FMTx 2.0 troubleshooting
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
troubleshooting....................................................................................................................................
tool....................................................................................................................................................
List of Tables
Table 10 Bus mode selection truth table. ............................................................................................................7-8
Table 11 I2C 7-bit bus address selection summary ............................................................................................7-8
Table 12 Left and right audio self test truth
List of Figures
Figure 39 FMTx 2.0 schematic ...............................................................................................................................7-5
Figure 40 FMTx 2.0 Component References and Location..................................................................................7-5
Figure 41 FMTx 2.0 layout (Layer 10) ...................................................................................................................7-6
Figure 42 Access to signals....................................................................................................................................7-7
Figure 43 FMTx panel before connection to the
Figure 44 FMTx panel after connection to the
Figure 45 FMTx panel in action
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COMPANY CONFIDENTIAL
Copyright © 2008 Nokia. All rights reserved.
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