Failed Test: Tx Pa Detector - Nokia 2255 Manual

2255 (RM-97)
RF Description and Troubleshooting
The RF PDM Control dialog box appears.
Figure 8: RF PDM Control dialog box for Cell troubleshooting
13. Click Read Phone to update the values.
14. Configure the spectrum analyzer using the following values:
• Center Frequency = 836.52 MHz
• Span = 100 MHz
• Amplitude = 20 dBm
• Attenuation = Auto
• BW = Auto
Adjust the following PDM field values on the RF PDM dialog box:
• Set PA Gain State to High
• Adjust Tx RF AGC PDM to around –250
• Adjust Tx IF AGC PDM to around –250
• Set Output level to +23dBm on CH-384 and monitor the current between
590mA and 660mA.

Failed Test: Tx PA Detector

1. Use Phoenix to set the phone in Local Mode, and activate the Tx with default
output power. The output power at the RF test connector should read
9 dBm +/- 4 dB.
2. Use a voltmeter on DC, and probe the detector output at C813. The voltmeter
should read approximately 1.4 V. If not, replace the detector (N803).
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©2005 Nokia Corporation
Nokia Customer Care
Company Confidential ISSUE 1 10/2005