iv
8.3 Dual Tone Multiple Frequency (DTMF) Data............................................. 2-18
9.0 Receive Audio Circuits....................................................................................... 2-19
9.1 Squelch Detect .......................................................................................... 2-19
9.2 Audio Processing and Digital Volume Control ........................................... 2-20
9.3 Audio Amplification Speaker (+) Speaker (-) ............................................. 2-20
9.4 Handset Audio ........................................................................................... 2-21
9.5 Filtered Audio and Flat Audio .................................................................... 2-21
10.0 Receive Signalling Circuits ................................................................................ 2-21
10.1 Sub-Audio Data (PL/DPL) and High Speed Data Decoder........................ 2-21
10.2 Alert Tone Circuits ..................................................................................... 2-22
Chapter 3
TROUBLESHOOTING CHARTS
1.0 Troubleshooting Flow Chart for Receiver RF (Sheet 1 of 2)................................ 3-2
1.1 Troubleshooting Flow Chart for Receiver (Sheet 2 of 2) ............................. 3-3
2.0 Troubleshooting Flow Chart for Synthesizer........................................................ 3-4
3.0 Troubleshooting Flow Chart for VCO................................................................... 3-5
4.0 Troubleshooting Flow Chart for DC Supply (1 of 2)............................................. 3-6
4.1 Troubleshooting Flow Chart for DC Supply (2 of 2)..................................... 3-7
Chapter 4
VHF2 PCB/ SCHEMATICS/ PARTS LISTS
1.0 Allocation of Schematics and Circuit Boards ....................................................... 4-1
1.1 VHF2 and Controller Circuits ....................................................................... 4-1
2.0 VHF 1–25 W Band 2 PCB 8488977U01 (rev. P9) / Schematics ......................... 4-3
VHF2 Interconnection between Main Board and Power Amplifier
Compartment ...................................................................................................... 4-3
VHF2 (146–174 MHz) 1–25 W 8488977U01 (rev. P9) ....................................... 4-4
VHF2 (146–174 MHz) 1–25 W 8488977U01 (rev. P9) ....................................... 4-5
VHF2 (146–174 MHz) 1–25 W Main Circuit (Sht 1 of 2) ..................................... 4-6
VHF2 (146–174 MHz) 1–25 W Main Circuit (Sht 2 of 2) ..................................... 4-7
VHF2 (146–174 MHz) 1–25 W Transmitter (Sht 1 of 2) ..................................... 4-8
VHF2 (146–174 MHz) 1–25 W Transmitter (Sht 2 of 2) ...................................... 4-9
VHF2 (146–174 MHz) 1–25 W Synthesiser and VCO (Sht 1 of 2) ................... 4-10
VHF2 (146–174 MHz) 1–25 W Synthesiser and VCO (Sht 2 of 2) ................... 4-11
VHF2 (146–174 MHz) 1–25 W Receiver Front and Back End (Sht 1 of 2) ....... 4-12
VHF2 (146–174 MHz) 1–25 W Receiver Front and Back End (Sht 2 of 2) ....... 4-13
VHF2 (146–174 MHz) 1–25 W DC and Audio Circuits (Sht 1 of 2) ................... 4-14
VHF2 (146–174 MHz) 1–25 W DC and Audio Circuits (Sht 2 of 2) .................. 4-15
VHF2 (146–174 MHz) 1–25 W Microprocessor and Controller Circuits
(Sht 1 of 2) ......................................................................................................... 4-16
VHF2 (146–174 MHz) 1–25 W Microprocessor and Controller Circuits
(Sht 2 of 2) ........................................................................................................ 4-17
VHF2 (146–174 MHz) 1–25 W Power Control Circuit ....................................... 4-18
2.1 VHF2 PCB 8488977U01 (rev. P9) Parts List 1–25 W ............................... 4-19
3.0 VHF 1–25 W Band 2 PCB 8486672Z01 / Schematics....................................... 4-29
VHF2 Interconnection between Main Board and Power Amplifier
Compartment .................................................................................................... 4-29
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: ......