Nokia NPD-4 Series Technical Documentation Manual page 55
Transceivers
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- Troubleshooting - bb (42 pages) ,
- Troubleshooting - gps (28 pages) ,
- Troubleshooting - antennas (12 pages)
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CCS Technical Documentation
UHF LO-inputs
1.35V reference voltage
RBIAS SSB MIXER
TX_IF_AGC_REF
TX_IF_AGC
RF_BUS_EN1X
RF_BUS_DATA
RF_BUS_CLK
Issue 1 02/2003
Figure 16: Detailed Robin Block Diagram
Nokia Corporation
Troubleshooting — RF
Confidential
NPD-4
TEST2
TEST1
EXT VCO input
PLL_TESTN
PLL_TESTP
VHF VCO tank
VHF charge-pump out
VCO BAND SWITCH
Page 55
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Troubleshooting
