Motorola MICOM-3F - Page 58

A
Check synthesizerCheck second injection
Problem
found
Check second mixer
Check 450 KHz signal
(IF filter)
Problem
found
Check 950 KHz
ceramic filter
Check 20 KHz signal
Problem
found
Check A/D
DC voltage
Check A/D
Problem
found
Check VCC
Check DSP output
signal
Reception possible
Problem
found
Check A
+
(13.8 V)
Check audio amplifier
Problem
found
Check flat cable to
Control Head board
Figure 6-1.B. Receiver Troubleshooting Flowchart (Sheet 2 of 2)
Cat. No. 6886859J01 6-3