Receiver Troubleshooting; Rx If - Nokia RH-77 Troubleshooting Manual

Rf description and troubleshooting

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Nokia Customer Care

Receiver Troubleshooting

Use Phoenix to perform the following steps for troubleshooting the receiver. Together

with the VCO frequency and level verification, this test should be the first test for a non-

working receiver. This test verifies the entire receiver chain, from input connector to

baseband output.

1. Inject a CW signal 881.82 MHz or 881.22 MHz (CH-384 offset by 300 KHz) at a

fixed –75 dBm power level. If you do not have a signal generator, use the call box

in AMPS mode on Channel 374 or 394 (10 channels away from channel 384).

2. Open the Phone Control dialog box.

Figure 11: Phone Control dialog box for Rx IF troubleshooting

3. Click the LOCAL button in the Phone State area to put the mobile terminal into

Local Mode.

4. Select the following values on the RF Main Mode dialog box:

Band = Cell (CDMA)

•

Channel = 384

•

Mode = Rx

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Issue 01 04/2005

RF Description and Troubleshooting

Company Confidential

2118 (RH-77)

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