Receiver Probing - Nokia NPD-1 Series Troubleshooting - Rf

NPD-1
Troubleshooting — RF
Item to
Setting
check
TX RF AGC See Table 1
TX IF AGC See Table 1
PA AGC See Table 1
Filter Low for ch 25-
select 1 599, high for
ch 600-1175
Filter High for ch
select 2 25-599, low
for
ch 600-1175
PCS_ Low=ch 600-
CTRL 1175, high =
ch 25-599
PD_PCS High=
TX on, Low =
TX off

Receiver Probing

PDM lower
limit
AMPS ch 384 2
LowGain
AMPS ch 384 127
HighGain
CELL ch 384 Low- -1
Gain
CELL ch 384 High- -119
Gain
PCS ch 600 Low- 16
Gain
PCS ch 600 High- -109
Gain
In AMPS, ensure 230 mV on I,Q traces of Batman out, probing point 40 of Figure 6.
Page 34
Table 5: DC probing for PCS transmitter
DC probing
DC voltage
location on board
12, Figure 8 See Table 1
13, Figure 8 See Table 1
14, Figure 8 See Table 1
30a, Figure 5 Low=0v
High=2.5v min
30b, Figure 5 Low=0v,
high=2.5v min
52, Figure 5 Low=0v, high=
1.9v min
53, Figure 5 High=2.6v
min, low=0v
Table 6: Receiver PDM values
PDM
upper PDM mean
limit
102 55
215 173
106 60
-3 -64
118 72
7 -55
Nokia Corporation
CCS Technical Documentation
Items to check if voltage
incorrect
D400 (UPP), R433, C426, R434,
C427, C429, V420
D400 (UPP), R427, C422, R428,
C423, C430, V421
D400 (UPP), R430, C424, R431,
C425, C431, V422
N601, N605, C650
N601, N605, C608
N601, N602 (pin1)
N601, N603, C611
PDM mean RX power
voltage in
0.98 -65 dBm
1.19 -65 dBm
0.99 -65 dBm
0.78 -95 dBm
1.01 -65 dBm
0.79 -95 dBm
Confidential
RSSI
should be
within +/- 2dB
of actual RX
signal above
- 104 dBm,
+2/-4 below
-104
Issue 1 11/2002