Probing Tables - Nokia RH-10 Series Troubleshooting Manual

RH-10
Troubleshooting

Probing Tables

Table 1: Transmit Output Power and Associated AGC PDM values and voltages
TX RF AGC
PDM value voltage
typical v
-409 0.17
-409 0.17
-409 0.17
-249 0.44
-104 0.70
37 0.95
-403 0.17
-403 0.17
200 1.23
450 1.68
511 1.78
Note: AGC PDM values will change (sometimes drastically) as the phone warms up. The table lists
PDM values for initial power up. After 10 minutes at full power, PDM values will be different.
Probing
Probing Point Location on
the board
UEM (D200) 1, Figure 1
out=Robin (N601)
in
Page 22
channel 384
TX IF AGC
PDM value voltage
typical v
-102 0.70
-89 0.72
-73 0.75
-63 0.77
-53 0.78
-48 0.79
CELL CDMA
-115 0.66
116 1.08
124 1.09
124 1.09
207 1.24
Table 2: RF/Analog Probing for Transmitter
Probed Absolute Power (dBm) or
gain/loss (dB) or voltage (v)
Use O-scope. For CDMA modula-
tion turned on, 550 mV p-p, looks
like noise. For AMPS, with test tone
turned on.
Nokia Corporation
CCS Technical Documentation
AMPS
Probed RF
power on
PDM value
Balun Out
dBm typical
-11.2 +/- 3 dB -19
-13.2 +/- 3 dB -123
-15.4 +/- 3 dB -310
-19.2 +/- 3 dB -330
-22.4 +/- 3 dB -330
-27.9 +/- 3 dB -330
-16 +/- 3 dB 220
-42 +/- 3 dB -270
-58 +/- 3 dB -331
-65 +/- 3 dB -331
-75 +/- 3 dB -331
Where to start checking if RF
power not correct (soldering,
shorts, DC power applied if
active, correct voltage of DC
signals, otherwise replace)
D200, N601 (VR2,3,6,IO)
Confidential
PA AGC RF power
on RF con-
voltage
nector
v dBm
0.84 25.5 (PL0)
0.66 24.2 (PL3)
0.34 19.9 (PL4)
0.30 15.8 (PL5)
0.30 12.5 (PL6)
0.30 8.2 (PL7)
1.27 25
0.40 -2
0.29 -23
0.29 -39
0.29 -50
Issue 1 09/2002