Receiver Dc Probe Points - Nokia 6275 Rf Description And Troubleshooting

6275/6275i (RM-154)
RF Description and Troubleshooting

Receiver DC Probe Points

LO Vdd = 2.7 VDC LO
Vdd supply lines for
Cell and PCS
VIO = 1.8 VDC BE IC
Vdd supply lines for
Cell and PCS
Page 30
RX RF Lo lock voltage 1.2 to 1.7 VDC
(Vrx) = 2.79 VDC RX FE IC Vdd supply line for CDMA and AMPS IFs
Figure 25: Rx DC test points
Company Confidential
VR4 = 2.7 VDC
NOTE: There is no part installed here.
There are only two pads.
RX Front End IC
Issue 1 - September 2006