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

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)
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