User Guide

PAMS
Technical Documentation
NHD–4
Disassembly & Troubleshooting
Page 20
Original 11/97
Figure 2
1.11 Check VCO_EN is high (3.15V) CDCONT(N201) pin 23.
1.12 Check VCTCXO(G300) waveform at CDCONT(N201) pin
35 looks like Figure 3. Also check that VRXS line is 4.5Vdc at
CDCONT(N201) pin 13. If all these conditions are meet check
solder joints for shorts and opens, if they are OK replace
CDCONT(N201).
Figure 3