Nokia RH-3 Series Troubleshooting - Rf page 22

RH-3
Troubleshooting - RF
Measurements
Step Part Part Ref
6 Alfred Pin 18
7 Alfred Pin 22
8 Z701 Pin 5
9 Yoda Pin 31
10 Yoda Pin 32
11 Yoda Pin 8
12 Yoda Pin 7
13 Yoda Pin 8
14 Yoda Pin 9
Alfred (Cell mode)
Setup
Mode Tx
Local Off
Page 22
Label Test Point
IF Amp right C906
input
IF output left L909
(565 ohms)
IF filter top L702
input
VGA input right C702
1
VGA input right C707
2
Qb out J704
Q out J703
lb out J702
1 out J701
Constant Reference Values:
CELL Iscillator and IF
VHF Tx Lo
457.2
VHF RX Lo
367.2
Rx Band
On PCS/CELL
Nokia Corporation
CCS Technical Documentation
Typical
Units
Value
-56 dBm/30kHz
-33 dBm/30kHz
-42 dBm/30kHz
-56 dBm/30kHz
-56 dBm/30kHz
0 to 0.6, VAC, VDC
1.3
0 to 0.6, VAC, VDC
1.3
0 to 0.6, VAC, VDC
1.3
0 to 0.6, VAC, VDC
1.3
Tx IF
228.6
Rx IF
183.6
CW or
Pin
CDMA
CW -80 dBm
Confidential
Comments
IF amp gain typi-
cally 15 to 19
impedance change
creates -10 dB
delta
see TS picts 2, doc
#2
both look same
and look distorted
see TS picts 2.doc
#3,4,5 SA view of
BB I or Q
see TS picts 2.doc
#3,4,5 SA view of
BB I or Q
see TS picts 2.doc
#3,4,5 SA view of
BB I or Q
see TS picts 2.doc
#3,4,5 SA view of
BB I or Q
Default LNA Gain
PDM Mode
RX IF AGC High
= 0
Issue 1 06/2003