Motorola MOTOTRBO XPR 7550e - Page 54

5-24 Troubleshooting Charts
Figure 5-24.Troubleshooting Flow Chart for GNSS (Sheet 2 of 2)
Measure spectrum at
L8003 = ref-3.1dBm
Yes
Inspect 1
st
SAW
(FL8001)
No
Measure spectrum at
R8009 DNP pad = ref
+16dBm
Inspect GNSS LNA
(U8000)
No
Yes
Measure spectrum at
C102_2 = ref +15dBm
Inspect 2
nd
SAW
(FL8002)
No
Yes
Inspect UBLOX IC
(U100_2)
Yes
A