Fm Radio Parts Layouts; Fm Radio Probe Points - Nokia 6275 Rf Description And Troubleshooting

6275/6275i (RM-154)
RF Description and Troubleshooting
7. With the universal headset connected, repeat steps 1—5.
• If there is a signal present, the FM Radio is working properly.
• If there is no static sound present, refer to the "Audio" section of the
Baseband Description and Troubleshooting chapter for more information.

FM Radio Parts Layouts

FM Radio Probe Points

Use the following values when probing the LO near the VCO of the FM radio IC (N6100).
Description
LO frequency
IF frequency
For example, if the Rx frequency is 87.5 and the IF frequency is 225kHz, the LO equals
175.45MHz [(87.5+0.225)*2 = 175.45MHz].
Page 56
FM antenna matching components
FM radio IC
Figure 56: FM Radio components layout
Table 8: FM Radio Probe Point Values
Value
(Rx frequency + IF frequency) x 2
225kHz
Company Confidential Issue 1 - September 2006