Nokia 8208 Service Manual page 91

RM-384
RF Troubleshooting
Table of Contents
General RF troubleshooting ................................................................................................................................................................... 4-4
Receiver troubleshooting ..................................................................................................................................................................... 4-14
GPS troubleshooting ................................................................................................................................................................................ 4-20
Bluetooth Troubleshooting ................................................................................................................................................................. 4-22
List of Tables
Table 17 RF TX voltage checking point information ........................................................................................................... 4-11
Table 18 Cell band Tx check shows the test points shown in Figure 41. ................................................................ 4-12
Table 19 PCS band Tx check shows the test points shown in Figure 41. ............................................................... 4-12
Table 20 Receiver check from RF to DVGA (Cellular band) ............................................................................................... 4-16
Table 21 Receiver check from RF to DVGA (PCS band) ........................................................................................................ 4-16
Table 22 shows the Tx DC test points shown in Figure 43 .............................................................................................. 4-16
Table 23 Cell band Rx RF troubleshooting test points Shown in Figure 43. ......................................................... 4-17
Table 24 PCS band Rx RF troubleshooting test points Shown in Figure 43. ......................................................... 4-17
Table 25 GPS RF troubleshooting test points Shown in Figure 46. ............................................................................ 4-22
Table 26 BT voltage checking test point ..................................................................................................................................... 4-25
List of Figures
Figure 34 Component Layout (Top) .................................................................................................................................................. 4-5
Figure 35 Component Layout (Bottom) ........................................................................................................................................ 4-6
Figure 36 RF TX key components ....................................................................................................................................................... 4-7
Figure 37 RF RX key components ....................................................................................................................................................... 4-7
Figure 38 Display of Nokia CDMA L3 PST Service Software ................................................................................................. 4-9
Figure 39 Steps of configuring FTM for RF troubleshooting ........................................................................................... 4-10
Figure 40 Tx DC checking test points ............................................................................................................................................. 4-11
Figure 41 Tx RF Test Points .................................................................................................................................................................. 4-12
Figure 42 Steps of configuring FTM for RF Troubleshooting .......................................................................................... 4-15
Figure 43 RF RX voltage checking test point ............................................................................................................................ 4-17
Figure 44 GPS system block diagram ........................................................................................................................................... 4-20
Figure 45 RF Toolkit setup for GPS troubleshooting ............................................................................................................ 4-20
Figure 46 RF GPS checking test point ............................................................................................................................................ 4-21
Figure 47 BT system block diagram .............................................................................................................................................. 4-23
Figure 48 Display of entering the Bluetooth test mode ................................................................................................... 4-24
Figure 49 RF GPS checking test point ............................................................................................................................................ 4-25
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