Incorrect Pll Frequencies - Nokia 6265 Rf Description And Troubleshooting

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Incorrect PLL Frequencies

Following are some possible causes for incorrect PLL frequencies:
• Power supplies to PLL portion
• Control line to VCO
• Loop filter or resonator components missing or incorrectly installed
• 19.2MHz reference clock missing or low
• Component failure (PLL IC, Rx Front-End IC, Tx IC, VCO, or VCTCXO)
Issue 1 11/2005
©2005 Nokia Corporation
6265/6265i/6268 (RM-66)
RF Description and Troubleshooting
Company Confidential Page 49