Rf Key Components; Bom1 Versus Bom3 - Nokia RM-272 Service Manual

RF key components

BOM1 versus BOM3

RM-272/RM-273 can use two different sources for components, resulting in two BOMs - BOM1 and BOM3.
The troubleshooting is the same for both BOMs. The schematics are also identical.
However, it is not possible to mix BOM1 and BOM3 parts.
Therefore during troubleshooting, you must identify whether you are working on a BOM1 or BOM3 PWB and
only use components which belong to that particular BOM (BOM1 or BOM3). You must not use BOM3 parts to
repair BOM1, or BOM1 parts to repair BOM3.
Page 4 –6
Figure 17 RF key components, bottom side main board
COMPANY CONFIDENTIAL
Copyright © 2007 Nokia. All rights reserved.
RF Troubleshooting and Manual Tuning Guide
RM-272; RM-273
Issue 1