Receiver Troubleshooting - Nokia 6015 Troubleshooting - Rf

6015/6015i/6016i/6019i (RH-55), 6012 (RM-20)
Troubleshooting - RF
Test Point
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Receiver Troubleshooting

The primary component of the receiver is the Alfred Rx IC. This Rx IC contains two LNAs
and mixers. The other components are passive. There are two RF SAW filters for the Cell
and PCS bands. In addition, there are two IF filters, an IF SAW for CDMA and an IC
Crystal for AMPS. The back-end of the receiver consists of the Batman IC. The VGA and
IQ demodulator are the main functions.
Following is the RX system block diagram.
Page 22
Table 2: TX RF Probe Points (Continued)
Description
TX IQ in with oscilloscope
TX UHF LO
Jupiter out
PA in
PA out
Duplexer out
Power detector in
Coupler out
Diplexer out
PCS coupler out
©2004 Nokia Corporation
Nokia Customer Care
Value
Approximately 500 mV p-p
with +1.2 V offset
PCS: 3760 MHz, -54 dBm
Cell: 3346.08 MHz, -57 dBm
Cell: -15 dBm
AMPS: -6 dBm
Cell: -15 dBm
AMPS: -7 dBm
Cell: +11 dBm
AMPS: +22 dBm
Cell: +10 dBm
AMPS: +20 dBm
PCS: -17 dBm
Cell: -8 dBm
AMPS: +3 dBm
Cell: +8 dBm
AMPS: +18 dBm
PCS: -2 dBm
Cell: +10 dBm
AMPS: +19 dBm
-1 dBm
Company Confidential Issue 1 08/2004