TEST AND MEASUREMENT
MCUK990801C8
Section 6
Issue 1
Service Manual
– 37 –
Revision 0
6.5 Adjustment Mode
NOTE:
See Section 6.2.1 for a list of the equipment and setup procedures required to perform the following adjustment
and calibration procedures.
The following procedures MUST be performed after replacement or repair of one or both of the PCBs in the handheld unit.
Failure to do so may result in incorrect operation of the telephone.
The following adjustments MUST be made on BOARD PAIRS.
There are three distinct calibration procedures to adjust RF performance. These procedures are:
1.
Ramping gain (Section 6.5.1)
2.
RSSI (Section 6.5.2)
3.
I and Q values (Section 6.5.3)
The adjustment data selected during calibration is stored in the telephone Flash ROM.
Figure 6.12: Test software screen
SET ER.DISP
<ENABLE>
<DISABLE>
Unit error codes will be displayed on the UUT
display
Unit error codes will not be displayed on the
UUT display
SOFT SIM
<ENABLE> <DISABLE>
With ENABLE set and TEST MODE <TERM>
the UUT is removed from test mode and can be
placed into call mode
TEST MODE
<TERM>
With SOFT SIM <ENABLED> the UUT will be
removed from test mode and can be placed into
a call
SIM STATUS
<SHOW>
Checks and displays the SIM status
CHECK SUM
<SHOW>
Displays the software checksum
CHANNEL BOX COMMAND
INDICATION
FUNCTION