Troubleshooting Flow Chart for Receiver RF (Sheet 1 of 2)
3-3
1.1
Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)
3V
(IFIC -Vcc)
OK ?
Installation
OK ?
Yes
Yes
No
No
A
From
Check visually
all receiver
components
installation ?
Inject - 40dBm (CW)
to RF connector
Check Power on
C335 (UHF) C332 (VHF)
RF
Power
> -28 dBM
?
Yes
No
Check Power on
C337 (UHF),
C336 (VHF)
Go to
DC Section
Check
the component
Antenna to Mixer
circuitry problem
Replace
Q303, Q301
Check passive
components
RF
Power
> -28 dBM
?
Yes
No
Replace
Q305, Q300, U302
Check passive
components
Check Y301
44.395 MHz
Y301
OK
?
Yes
No
Replace Q302, Y300
Check D301 – 304
Replace Y301
3V to
U301
OK
?
Yes
No
Replace U300
Go to DC Section
Содержание Radius CM200
Страница 1: ......
Страница 2: ......
Страница 3: ...M CM200 CM300 PM400 Radios Detailed Service Manual 6802966C20 C ...
Страница 6: ...Notes ...
Страница 8: ...Notes ...
Страница 9: ...CM200 CM300 PM400 Radios Service Maintainability M Issue May 2009 ...
Страница 12: ...iv Notes ...
Страница 14: ...vi Notes ...
Страница 18: ...1 4 INTRODUCTION Notes ...
Страница 26: ...2 8 MAINTENANCE Notes ...
Страница 29: ...CM200 CM300 PM400 Radios Control Head Service Information M Issue May 2009 ...
Страница 34: ...1 2 OVERVIEW Notes ...
Страница 48: ...4 2 CONTROL HEAD PCB SCHEMATICS PARTS LISTS Notes ...
Страница 55: ...CM300 Radio VHF1 136 162 MHz 25 45 W Service Information M Issue May 2009 ...
Страница 60: ...vi Notes ...
Страница 64: ...1 4 MODEL CHART AND TECHNICAL SPECIFICATIONS Notes ...
Страница 98: ...4 2 VHF1 PCB SCHEMATICS PARTS LISTS Notes ...
Страница 124: ...4 28 VHF 25 45 W Band 1 PCB 8486487Z03 Schematics Notes ...
Страница 125: ...CM200 CM300 PM400 Radios VHF2 146 174 MHz 1 25 W Service Information M Issue May 2009 ...
Страница 130: ...vi Notes ...
Страница 134: ...1 4 MODEL CHART AND TECHNICAL SPECIFICATIONS Notes ...
Страница 164: ...3 8 TROUBLESHOOTING CHARTS Notes ...
Страница 166: ...4 2 VHF2 PCB SCHEMATICS PARTS LISTS Notes ...
Страница 192: ...4 28 VHF 1 25 W Band 2 PCB 8488977U01 rev P9 Schematics Notes ...
Страница 218: ...4 54 VHF 1 25 W Band 2 PCB 8486672Z01 Schematics Notes ...
Страница 219: ...CM200 CM300 PM400 Radios VHF2 146 174 MHz 25 45 W Service Information M Issue May 2009 ...
Страница 224: ...vi Notes ...
Страница 228: ...1 4 MODEL CHART AND TECHNICAL SPECIFICATIONS Notes ...
Страница 262: ...4 2 VHF2 PCB SCHEMATICS PARTS LISTS Notes ...
Страница 312: ...4 52 VHF 25 45 W Band 2 PCB 8486487Z04 Schematics Notes ...
Страница 313: ......