Fmtx 2.0 Pwb Traces - Nokia RM-235 Service Manual

RM-235
FMTx 2.0 troubleshooting
The main component of the FMTx 2.0 solution is the Si4713 low power transmitter device (N2600). This whole
area is likely to be covered in an RF shield (can) and this will need to be removed in order to gain access to
these components if required.
The figure below shows the layout of the DC blocking capacitors on the left and right audio path (R2149).

FMTx 2.0 PWB traces

Figure 41 FMTx 2.0 layout (Layer 10)
This figure shows pads for pogo pins for a removable loop antenna. This type of antenna is normally located
in the back (C) cover of the handset. Since the Si4713 device package that is used for the FMTx 2.0 solution
is a QFN package, access to the various pins is good. There are however, a significant number of other access
points available due to tracks running from the Si4713 device and also at the edges of some of the external
components such as the inductor.
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