LG T5100 Service Manual page 114

7. Service and Calibration
Beacon Freq. Setting (BCH)
You can set BCH of phone. The number means ARFCN of base station broadcasting channel.
Power Level Setting
First, you have to choose operating mode (GSM or DCS) according to TCH and BCH frequency that
you selected before. Then select the Level and adjust the DAC value. Level means GSM/DCS output
power level. Usable range is 5 to 19 for GSM, 0 to 15 for DCS. DAC value is a factor to determine
output power. Its variable range is 0 to 1023.
Uplink Normal Burst test
You can also control the traffic slot number be using by changing TCS value. Because GSM has 8-
time slot, TCS value varies 0 to 7. Patten is to select data format that is transmitted. You can send all
data 0, or 1 or repeating of 1010. But it is good to you to using the default value because data format
doesn't affect to RF characteristics.
Test
Transmitting is started when you click this button. During Transmitting, label of Test button is changed
to Stop. If you want stop transmitting, click this button one more.
D. RF Parameter Download Frame
Saving epm file into Flash
When you have a epm file, contains calibrated data, and you want to download into target Flash,
check Flash and click File Download button. Then you can see RF parameters Save window. Select
epm file you want to save into Flash then click Open. During saving file into Flash, The statement bar
indicating download process is displayed under the RF Parameter Download frame. As successfully
ending download, information box will be appeared. Click Ok.
Saving Cal. Data to Flash
After Rx or Tx calibration, you can save the calibration results into Flash and epm file. Check Flash
and click Calib Save button. Then you can see RF parameters Save window. Write the file name and
click Save button.
E. User Command and Results Frame
Whenever you click button or make some event in service software, every ordered event is displayed
in this frame. You can also see calibration results here.
F. Ramp shape button
This button is for burst shape table. But it is deactivated in service software.
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