Troubleshooting Flow Chart for Rx VCO 1-11
4.1 Troubleshooting Flow Chart for Rx VCO (Sheet 2 of 3)
Vbe ~ 0.8VDC for Q0204?
Check biasing components
R0222,R0224,L0218,L0220,L0222,
R0228,R0230 & Q0204 for short or
open; then replace Q0204 if needed
Check components from C0241 to
C0267 for shorts and open
Is 8.2VDC for L0220?
Check RFIC troubleshooting flow
chart
Check 1.8VDC at
R0220?
Is 8.2VDC at R0222?
Check RFIC troubleshooting
flow chart
Radio not programmed for
VCO1 or Q0203 not
functional
seY
No
Yes
Yes
No
No
Yes
No
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