Transmitter Rf Troubleshooting Procedures - Nokia 2366i Rf Description And Troubleshooting

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10. Select the following values on the CDMA Control dialog box.
State = Rho ON
•
Band = PCS
•
Radio Configuration = Mode 1: IS-95 Voice
•
Note: Do NOT select the "Set default PDM values" option.
11. Click Execute.
12. Open the Troubleshooting menu, point to RF, and click PDM Control.
13. Configure the spectrum analyzer using the following values:
• Center Frequency = 1880 MHz
• Span = 100 MHz
• Amplitude = 20 dBm
• Attenuation = Auto
• BW = Auto
Description/Field
AGC1
V ctl
PA_DC-DC
Current

Transmitter RF Troubleshooting Procedures

After Phoenix is set up using either the Cell, or PCS setup procedures, use the following
procedures to troubleshoot the Transmitter RF section:
1. Using an oscilloscope, check the I and Q input modulation wave forms at test
points. See
present with an AC swing of about 500mVpp, with an offset of +1.5 V dc.
• If one or more waveforms is missing, look for SMD problems around these
resistors.
• If the SMD is good, replace the UEMCR.
2. Use an AAS-10 RF probe to probe the Cell Tx output of the Tx IC. See
for setup parameters and a typical display.
• If there is no RF or low RF, look for a faulty SMD around the Tx IC N7001.
• If the SMD is okay, replace the N7001 TX IC.
Issue 2 - February 2007
Table 3: RF PDM Values
"Tx RF Components of the
Company Confidential
RF Description and Troubleshooting
Reference Value
-136
-428
265
372mA
PWB" on page 20. They should all be
2366i (RM-155)
Figure 10
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