Nokia RM-824, Service Manual, Page: 185 / 204

Table of Contents
General information .............................................................................................................................................. 8–5
RM-826 product data ....................................................................................................................................... 8–5
Product and module list .................................................................................................................................. 8–5
Main RF characteristics for GSM850/900/1800/1900 and WCDMA VIII/V/IV/II/I phones ........................... 8–5
Service tools and service concepts ...................................................................................................................... 8–7
MJ-305 ................................................................................................................................................................ 8–8
XRS-6 .................................................................................................................................................................. 8–8
BB troubleshooting ............................................................................................................................................... 8–9
PWB markings in RM-826 and RM-824 ........................................................................................................... 8–9
RF troubleshooting ............................................................................................................................................. 8–10
Cellular RF key components ......................................................................................................................... 8–10
RF tuning and testing ................................................................................................................................... 8–11
System module ................................................................................................................................................... 8–11
Phone description ......................................................................................................................................... 8–11
Cellular RF technical description .................................................................................................................. 8–12
WCDMA IV (1700/2100) frequencies ............................................................................................................ 8–13
List of Tables
Table 11 Remote connectivity .............................................................................................................................. 8–5
List of Figures
Figure 62 PWB markings in RM-826 and RM-824 ............................................................................................... 8–9
Figure 63 RF key component layout, top side ................................................................................................. 8–10
Figure 64 RF key components ........................................................................................................................... 8–11
Figure 65 RF block diagram ............................................................................................................................... 8–12
RM-824; RM-825; RM-826
Service information differences between RM-826 and
RM-824
Issue 2 NOKIA INTERNAL USE ONLY Page 8 – 3
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