19.2 Mhz Vctcxo Reference Clock - Nokia 6015 Troubleshooting - Rf

6015/6015i/6016i/6019i (RH-55), 6012 (RM-20)
Troubleshooting - RF
Use the following steps to troubleshoot the synthesizer using Phoenix:
1. On the Phone Control dialog box, click the LOCAL button in the Phone State
area to put the phone into Local Mode.
2. Select the following values on the RF Main Mode dialog box:.
Synthesizer Band
Cell
UHF
PCS
RX VHF
TX VHF Cell
PCS

19.2 MHZ VCTCXO Reference Clock

The VCTCXO frequency is a 19.2MHz reference signal. Without 19.2MHz, the phone does
not power up. This signal goes to Batman, Jupiter, the UHF PLL, and also to the UPP. Use
a high impedance probe to check for the presence of the signal at the following points:
• F_REF_TX, clock reference to Jupiter, should be ~ -9 dBm
• F_REF_RX, clock reference to Batman, should be ~ -9 dBm
• CLK10M2_UPP, clock reference to UPP, should be ~ -9 dBm and ~2 dB less in the
other side on R517
Page 44
Figure 35: Phone Control dialog box
Table 10: RF Main Mode Dialog Box Settings
Mode Channel
RX/TX 384
RX/TX 600
RX
RX/TX 384
600
©2004 Nokia Corporation
Notes
Allows for checking power to both RX and TX circuits.
One band is enough.
Company Confidential
Nokia Customer Care
Issue 1 08/2004