Nokia 9110 Service Manual

PAMS

Technical Documentation

RAE–2 

Troubleshooting 

Page 7  – 5

Original 02/99

This document is intend to be a guide for localizing and repairing electri-
cal faults in RAE–2 device.  First there is short guide for fault localizing.
Then fault repairing is divided into three troubleshooting paths, each per
any module. Needed equipments are present before any actions.

Before any service operation you must be familiar with RAE–2 product
and module level architecture.  You must also be familiar with RAE–2
specified service tools like the WinTesla service software, Flashing tools
and softwares.  Basic skills of using RF measurement devices are re-
quired when you are starting to follow RF troubleshooting paths.

When you have a faulty RAE–2 device and you are starting troubleshoot-
ing it, check first the following basics.

 –

Device hasn’t any mechanical damage.

 –

Device, especially connectors, are not dirty or moist.

 –

Screws are tightened as specificed.

 –

Battery voltage is high enough (nominal battery voltage is 3.6V).

 –

Current consumption is in normal area (this can be checked with Service Battery

BBS–5, if ReLink mode is disabled).

200–380mA

203–420mA

340mA–700mA

35–45mA

38–85mA

175–365mA

2–3mA

5–43mA

142–323mA

<1.0mA

3–40mA

140–320mA

Note1: CMT peak current consumption might be 5x more than is specified above.

Then you define the  faulty module.  Normally this isn’t difficult because
the RAE–2 device has three quite independent modules; CMT, PDA and
UI.

If you can’t conclude which is the faulty module, try to program new soft-
ware to the RAE–2.  Usually when a module has a  real fault also its pro-
gramming fails.  If programming succeeds, it means that the CMT and