Nokia RH-57 Series Troubleshooting Manual page 34

2112 (RH-57)
Troubleshooting - RF
in AMPS mode, an HP4406 Tx tester, or a spectrum analyzer (preferably using a lab
system 10MHz source as equipment reference). Replace the VCTCXO if the VCTCXO AFC
DAC value does not meet the tuning requirements after tuning.
Use the following steps to manually tune the VCTCXO:
1. Open the Phone Control dialog box.
Figure 23: Phone Control dialog box for VCTCXO troubleshooting
2. Click the LOCAL button in the Phone State area to put the phone into Local
Mode.
3. Select the following values on the RF Main Mode dialog box:
Band = Cell (CDMA)
•
Channel = 384
•
Mode = Rx/Tx
•
Figure 24: RF Main Mode dialog box for VCTCXO troubleshooting
4. Do not use CDMA control to turn on Rho.
5. Open the BB General I/O dialog box to set the CW signal.
Page 34
©2004 Nokia Corporation
Nokia Customer Care
Company Confidential Issue 1 07/2004