Figure 14 Auto tuning concept with CMU200
Note:
Crossover Cable connection between computer and CU200 is recommended (refer to Service
Devices chapter and Module Jig concept).
Phoenix preparations
Install the phone specific data package, for example
RM-210_dp_1.78_sw_sh3.26.exe
. This defines phone
specific settings..
Auto tuning procedure
1 Make sure the phone (in the jig) is connected to the equipment. Else, some menus will not be shown in
Phoenix.
2 To go to autotune, select
Tuning (Alt-U)
>
Auto-Tune (Alt-A)
from the menu.
3 Start autotuning, clicking the
Tune
button.
General voltage checking
Steps
1. Set up the main board in the module jig. The phone should be in local mode.
2. Check the following:
#
Signal name
Test point
Voltage (all bands)
1
VCTCXO supply
R7501
2.5 V
2
AHNEUS supply from DC/DC conv
C7590
3.1 V
3
FEM supply
C7523
3.9 V
4
WCDMA PA supply from DC/DC conv
C7543
0 V (1.3 V* when transmitting. Settings
as in note below)
5
Vbat at WCDMA PA
C7547
3.9 V
6
Supply input to DC/DC conv
L7591
3.9 V
* With these settings, the result should be 1.3 V.
RM-240
RF troubleshooting
Issue 1
COMPANY CONFIDENTIAL
Page 4 –9
Copyright © 2007 Nokia. All rights reserved.
