Figure 19 Auto tuning concept with CMU200
Phoenix preparations
Install the phone specific data package, for example
RM-270_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
L7502
3.2 V
3
TXFEM supply
L7510
3.9 V
4
WCDMA PA supply from DC/DC conv
C7543
0 V (When transmitting 1.3 V - 3.1 V
depending on output power. *3.1 V
with settings as in the note below.)
5
Vbat at WCDMA PA
L7550
3.9 V
6
Supply to AHNEUS DC/DC conv
L7592
3.9 V
* With these settings, the result should be 3.1V.
RM-257; RM-270; RM-277
RF troubleshooting
Page 4 –8
COMPANY CONFIDENTIAL
Issue 1
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