Motorola CDM1550-LS+ - Receiver Troubleshooting Chart (200 Mhz)

3-6 Maintenance
3.6 Receiver Troubleshooting Chart (200 MHz)
Check cir-
cuitry around
U3101.
Replace
U3101
if
defective.
Bad
SINAD
No Recovered Audio
Spray
or inject 44.85 MHz
into XTAL
Filter FL3101.
Check circuitry around
Y31 01 .
Replace Y3101
if defective.
Check
Controller (in the case of no audio).
Or else go to "B"
Replace
03110.
Yes
Troubleshooting Flow Chart for Receiver (200 MHz) (Sheet 1 of 2) J