IC-2720H SERVICE MANUAL
Contents
1. 173 800 To set t1 tracking To set t2 tracking To set t3 tracking To set t1 tracking To set t2 tracking To set t3 tracking Change permitted Change permitted ADJUSTMENT MODE CONTENTS LIST Continued Some adjustment frequency depend on the version Left band VHF Right band UHF Adjustment contents Presetting value Frequency display 3c4A62 Frequency display 375 200 9cA29E 410 200 b8EdFb 449 800 To set t1 tracking To set t2 tracking To set t3 tracking Change permitted 20636A 450 200 AEb3A7 500 200 d9f1F5 145 300 549 800 To set t1 tracking To set t2 tracking To set t3 tracking S meter adjustment Change permitted Change permitted 220 365 S meter adjustment Change permitted 350 085 S meter adjustment Change permitted 435 200 S meter adjustment Change permitted ae 145 300 S meter adjustment Change permitted 435 200 S meter adjustment Change permitted EE 910 200 S meter adjustment Change permitted 145 300 OOFFO4 SQL level adjustment Open tight N W 145 300 OOFF30 SQL level adjustment Open threshold N W 145 300 OOFF24 SQL level adjustment Close tight N W 145 300 OOFF36 SQL level adjustment Close threshold N W Change permitted 220 365 220 365 OOFFO4 OOFF31 SQL level adjustment Ope2. New Ctr WN Save Gres Sue ft CS 2720 Print e Revision 1 0 Cloning Software for IC 2720 C 2002 Icom Inc Select the icf file Port Clone Help emj 2e Eile View Bead lt TR Write gt TR E Memory CH r isa E DTMF Autodie Ge Adjust Mode F12 CS 2720 E Common Setting Revision 1 0 Function Memory Cloning Software for IC 2720 C 2002 Icom Inc elect to start the adjustment mode SET ik ba y MAIN OS vz OFF eee Oco O A pia imeat EF ee Aon M CALL Jooo GOOO m ADJUSTMENT MODE CONSTRUCTION MAIN 7 2 He OER Frequency adjustment Starting item E i aa a o y lt nai IAI DIII VHF TX power adjustment eh mF Pn i E a MAIN 7 7 He TH HHHH UHF TX power adjustment Pn EF vex ama w o y r a same HE VHF modulation adjustment ES es MAIN 72 He yt UHF modulation adjustment EF a ae Wire ce wy Hit 7 7 VHF DTCS adjustment ED i MAIN 7 HE 434 TE UHF DTCS adjustment 2 dt Et 1 auie a w w a H saa a ee HE Left band RX sensitivity adjustment Es ex MAIN J snes HE SOE HEEL Right band RX sensitivity adjustment sie Lh E i avna a y y a iia i Wy 2 HH Left band S meter adjustment Si Ca MAIN Z pD arr Right band S meter adjustment Ea LII Piha
3. 350 085 MHz Narrow Operating frequency e IF bandwidth e Receiving e Set the FM N mode and then push the SET key e Repeat the above operation 3 times SQUELCH LEFT BAND 4 445 200 MHz 435 200 MHz Wide Operating frequency IF band width e Connect the SSG to the antenna connector and set as Level Modulation Deviation e Receiving 129 dBm 0 079 uV 1 kHz 3 5 kHz USA Other Push the SET key 445 200 MHz 435 200 MHz e Operating frequency e Receiving USA Other Push the SET key 3 times Sq USA 445 200 MHz Narrow Operating frequency e IF bandwidth e Connect the SSG to the antenna connector and set as Level Modulation Deviation e Receiving 129 dBm 0 079 uV 1 kHz 1 75 kHz Set the FM N mode and then push the SET key 445 200 MHz Narrow e Operating frequency e IF bandwidth e Receiving This output level of the standard signal generator SSG is indicated as SSG s open circuit e Set the FM N mode and then push the SET key Repeat the above operation 3 times SOFTWARE ADJUSTMENT RECEIVING Continued ADJUSTMENT ADJUSTMENT CONDITION e Operating frequency 145 300 MHz TPE KOR 146 300 MHz USA AUS SEA EXP IF band width Wide e Connect the SSG to the antenna connector and set as Level 129 dBm 0 079 uV Modulation 1 kHz Deviati
4. ICF FILE EXPLANATION ICF FILE VERSION ICF FILE VERSION 02 EUR 06 KOR 03 ITR 07 AUS TPE 08 SEA USA 09 EXP 04 05 Click the Clone on the menu bar and select the Go Adjust Mode F12 to enter the adjustment mode cLonE In message is appeared on the IC 2720H s display while cloning CAUTION Need to back up the original memory data to use CS 2720 Otherwise the transceiver s memory channels are overwrit ten the data and deleted the original data at the same time when cloning the adjustment frequency file icf file E OPERATION ON THE ADJUSTMENT MODE Change the adjustment channel UP Right MAIN key Change the adjustment channel DOWN Right V MHz key Change the adjustment value Right DIAL Store the adjustment value Right SET key Select the mode Right M CALL key FM gt AM gt FM N gt FM Some adjustments need to push SET key to write the adjustment value to the CPU E EXITING FROM THE ADJUSTMENT MODE Turn the power OFF Push and hold the right and left M CALL keys and then turn power ON ATTENTION Need to cancel the adjustment mode when the adjust ment is finished Otherwise the transceiver does not work properly CS 2720 Properties General Shortcut a Target type CS 2720 Application Target location CS 2720 Target iles lcom CS 2720 CS27 exe FX 2492AdjustStari Add FX 2492AdjustStart to the end of command line
5. A OJN 145 000 8F VHF TX power adjustment Change permitted 4 Oo 65 440 000 VHF TX power adjustment Change permitted i 144000 A0 Modulation adjustment for lowest frq VHF Change permitted 146000 9d Modulation adjustment for highest frq VHF Change permitted 8D 430 000 Modulation adjustment for lowest frq UHF Change permitted 85 440 000 Modulation adjustment for highest frq UHF Change permitted 145 100 FF DTCS adjustment Change inhibited 145 100 222200 88 435 100 DTCS adjustment DTCS adjustment Change permitted Change permitted 67 435 100 DTCS adjustment Change inhibited 118 200 2F2431 146 200 179800 83718E bbAFEA To set t1 tracking To set t2 tracking To set t3 tracking Change permitted 180 200 26287F 220 365 259 800 7E6380 Ec9b7F To set t1 tracking To set t2 tracking To set t3 tracking Change permitted 260 200 4A4380 320 200 898655 374800 9ccA80 To set t1 tracking To set t2 tracking To set t3 tracking Change permitted 375 200 3d1E4A 410 200 917F86 449 800 ddd8Eb To set t1 tracking To set t2 tracking To set t3 tracking Change permitted 450 200 624644 500 200 cO8F88 549 800 363030 EEd9cc 118200 7d807E 146 200 A8ACcF 1
6. W TPE 15 0 W Other 5 0 W MODULATION LOW FREQ dE e Operating freq e Output power e IF bandwidth 144 000 MHz Low Wide e Connect an audio generator to the MIC jack and set as 1 0 kHz 80 mVrms 1 0 kHz 20 mVrms e Set an FM deviation meter as HPF LPF De emphasis Detector e Transmitting 50 Hz 20 kHz OFF P P 2 USA Other HIGH FREQ dE e Operating freq 146 000 MHz TPE KOR 148 000 MHz USA AUS SEA EXP e Transmitting Connect an FM deviation meter to the antenna connector through an attenuator 4 6 kHz 4 6 kHz SOFTWARE ADJUSTMENT TRANSMITTING Continued ADJUSTMENT ADJUSTMENT CONDITION e Operating freq 440 000 MHz USA 430 000 MHz Other e Output power Low IF bandwidth Wide e Connect an audio generator to the MIC jack and set as 1 0 kHz 80 mVrms USA 1 0 kKHz 20 mVrms Other e Set an FM deviation meter as HPF 50 Hz LPF 20 kHz De emphasis OFF Detector P P 2 e Transmitting MEASUREMENT e Operating freq 450 000 MHz USA 440 000 MHz Other e Transmitting LOCATION Connect an FM deviation meter to the antenna connector through an attenuator 4 6 kHz e Operating freq 145 100 MHz TPE KOR 146 100 MHz USA AUS SEA EXP e IF bandwidth Wide e Output power Low e Set an FM deviation meter as HPF OFF LP
7. signal generator SSG is indicated as SSG s open circuit Push the SET key SOFTWARE ADJUSTMENT RECEIVING Continued ADJUSTMENT SENSITIVITY RIGHT BAND 2 tr ADJUSTMENT CONDITION Operating frequency e Set the SSG level e Receiving 375 200 MHz 97 dBm 3 2 uV OPERATION Push the SET key e Operating frequency e Receiving 410 200 MHz Push the SET key Operating frequency e Receiving 449 800 MHz Push the SET key e Operating frequency e Set the SSG level e Receiving 450 200 MHz 97 dBm 3 2 uV Push the SET key e Operating frequency e Receiving 500 200 MHz Push the SET key e Operating frequency e Receiving 549 800 MHz Push the SET key e Operating frequency IF bandwidth Level Modulation Deviation e Receiving 145 300 MHz 146 300 MHz TPE KOR USA AUS SEA EXP Wide e Connect the SSG to the 107 dBm 1 uV 1 kHz 3 5 kHz antenna connector and set as Push the SET key e Operating frequency e Receiving 220 365 MHz Push the SET key e Operating frequency e Receiving 350 085 MHz Push the SET key e Operating frequency e Receiving 445 200 MHz 435 200 MHz USA Other Push the SET key e Operating frequency e Receiving 145 300 MHz 146 300 MHz TPE KOR USA AUS SEA EXP Push
8. the SET key e Operating frequency e Receiving 259 800 MHz Push the SET key SENSITIVITY LEFT BAND 3 tr Operating frequency e Set the SSG level e Receiving 260 200 MHz 97 dBm 3 2 uV Push the SET key e Operating frequency e Receiving 320 200 MHz Push the SET key e Operating frequency e Receiving 374 800 MHz Push the SET key SENSITIVITY LEFT BAND 4 tr Operating frequency e Set the SSG level e Receiving 375 200 MHz 97 dBm 3 2 uV Push the SET key e Operating frequency e Receiving 430 200 MHz 410 200 MHz USA Other Push the SET key e Operating frequency e Receiving 449 800 MHz Push the SET key SENSITIVITY LEFT BAND 5 tr SENSITIVITY RIGHT BAND 1 tr Operating frequency Set the SSG level e Receiving 460 200 MHz 450 200 MHz 97 dBm 3 2 uV USA Other Push the SET key e Operating frequency e Receiving 490 200 MHz 500 200 MHz USA Other Push the SET key e Operating frequency e Receiving e Operating frequency e Set the SSG level e Receiving 549 800 MHz 118 200 MHz 97 dBm 3 2 uV Push the SET key Push the SET key e Operating frequency e Receiving 146 200 MHz Push the SET key 3 Operating frequency e Receiving 173 800 MHz This output level of the standard
9. F 20 kHz De emphasis OFF Detector P P 2 e No signal is applied to the MIC con nector e Transmitting Connect an FM deviation meter with an oscilloscope to the antenna connector through an attenuator Set to flat wave form UHF DTCS WAVE FORM at e Operating freq 445 100 MHz USA 435 100 MHz Other IF bandwidth Wide e Output power Low e Set an FM deviation meter as HPF OFF LPF 20 kHz De emphasis OFF Detector P P 2 e No signal is applied to the MIC con nector e Transmitting Connect an FM deviation meter with an oscilloscope to the antenna connector through an attenuator Set to flat wave form SOFTWARE ADJUSTMENT RECEIVING ADJUSTMENT SENSITIVITY LEFT BAND 1 tr Operating frequency e IF bandwidth Connect the SSG to the antenna connector and set as Level Modulation Deviation e Receiving ADJUSTMENT CONDITION 118 200 MHz Wide 97 dBm 3 2 uV 1 kHz 3 5 kHz OPERATION Push the SET key Operating frequency e Receiving 146 200 MHz Push the SET key e Operating frequency e Receiving 179 800 MHz Push the SET key SENSITIVITY LEFT BAND 2 tr e Operating frequency Set the SSG level e Receiving 180 200 MHz 87 dBm 10 pV Push the SET key e Operating frequency e Set the SSG level e Receiving 220 365 MHz 97 dBm 3 2 pV Push
10. IC 2720H ADJUSTMENT PROCEDURES 1 PREPARATION Some adjustments must be performed on the adjustment mode OPC 478 U CLONING CABLE and CS 2720 CLONING SOFTWARE Rev 1 0 or later are required when entering the adjustment mode E REQUIRED TEST EQUIPMENT EQUIPMENT GRADE AND RANGE EQUIPMENT GRADE AND RANGE DC power supply Output voltage Current capacity 13 8 V DC 20 A or more RF power meter terminated type Measuring range Frequency range Input impedance 1 100 W 100 600 MHz 50 kQ V DC or better Audio generator Attenuator Frequency range output level Power attenuation Capacity 0 1 1000 MHz 1 500 mV 40 50 dB 100 W or more Frequency counter Frequency range Frequency accuracy Sensitivity 0 1 600MHz 1 ppm or better 100 mV or better Standard signal generator SSG Frequency range output level 100 1200 MHz 0 1 V 32 mV FM deviation meter Frequency range Measuring range E SYSTEM REQUIREMENTS IBM PC AT compatible computer e Microsoft Windows 98 98SE 2000 Me XP At least 800 x 600 pixel display e CS 2720 CLONING SOFTWARE 100 600 MHz 1 100 W Oscilloscope Frequency range output level DC 20 MHz 0 01 20 V AC millivoltmeter Measuring range e USB or RS 232C serial port OPC 478 CLONING CABLE RS 232C type OPC 478U CLONING CABLE USB type 10 mV 10 V Microsoft and Windo
11. adjustment Close threshold N W OOFFO4 910 200 SQL level adjustment Change permitted Open tight N W OOFF2c 910 200 SQL level adjustment Open threshold N W OOFF21 910 200 SQL level adjustment Close tight N W OOFF31 910 200 SQL level adjustment Close threshold N W 145 100 FF CTCSS auto generation Change inhibited 145 100 d6 DTCS auto generation FF 435 100 CTCSS auto generation d6 435 100 DTCS auto generation 145 000 9E TX protection voltage 8d 440 000 TX protection voltage 145 000 00 From 84 to 199 normal Change inhibited ery 440 000 operano Adjustment contents Presetting value N W Narrow Wide
12. l Sr Si E Ca ENR lt lt ae ea y a itt grer He Left band squelch adjustment D t PEEN MAIN Vi Right band squelch adjustment m MODE SELECT ON THE ADJUSTMENT MODE ream E I a Hed 22 54 ia 54 No a 5a The decimal point does not appear on the display while selected FM N mode 3 SOFTWARE ADJUSTMENT TRANSMITTING ADJUSTMENT REFERENCE FREQUENCY Fr ADJUSTM Operating freq e Output power ENT CONDITION 450 000 MHz USA 440 000 MHz Other Low e Connect the RF power meter or 50 Q dummy load to the antenna connector e Transmitting MEASUREMENT LOCATION Loosely couple a frequency counter to the antenna connec tor 450 0000 MHz USA 440 0000 MHz Other VHF OUTPUT POWER HIGH Operating freq 145 000 MHz TPE KOR 146 000 MHz USA AUS SEA EXP e Output power e Transmitting High e Output power Transmitting Mid e Output power e Transmitting Low Connect an RF power meter to the antenna connector 22 0 W TPE 15 0 W Other 5 0 W UHF OUTPUT POWER HIGH Operating freq e Output power e Transmitting 450 000 MHz USA 440 000 MHz Other High e Output power e Transmitting Output power e Transmitting Mi Low Connect an RF power meter to the antenna connector 37 0 W 22 0
13. n tight N W SQL level adjustment Open threshold N W 220 365 OOFF24 SQL level adjustment Close tight N W 220 365 OOFF3A SQL level adjustment Close threshold N W Change permitted 350 085 OOFFO4 SQL level adjustment Open tight N W 350 085 OOFF2E SQL level adjustment Open threshold N W 350 085 OOFF22 SQL level adjustment Close tight N W 350 085 OOFF3b SQL level adjustment Close threshold N W Change permitted 435 200 OOFFO4 SQL level adjustment Open tight N W 435 200 OOFF2E SQL level adjustment Open threshold N W 435 200 OOFF22 SQL level adjustment Close tight N W N W Narrow Wide 435 200 OOFF3A SQL level adjustment Close threshold N W Change permitted ADJUSTMENT MODE CONTENTS LIST Continued Some adjustment frequency depend on the version Left band VHF Right band UHF Frequency display Frequency display Mch OOFFO4 145 300 SQL level adjustment Change permitted Open tight N W OOFF24 145 300 SQL level adjustment Open threshold N W OOFFid 145 300 SQL level adjustment Close tight N W OOFF34 145 300 SQL level adjustment Close threshold N W OOFFO4 435 200 SQL level adjustment Change permitted Open tight N W OOFF29 435 200 SQL level adjustment Open threshold N W OOFFIE 435 200 SQL level adjustment Close tight N W OOFF34 435 200 SQL level
14. on 3 5 kHz e Receiving OPERATION Push the SET key e Operating frequency 145 300 MHz TPE KOR 146 300 MHz USA AUS SEA EXP e Receiving Push the SET key 3 times e Operating frequency 445 200 MHz USA 435 200 MHz Other IF band width Wide e Connect the SSG to the antenna connector and set as Level 129 dBm 0 079 uV e Receiving Push the SET key SQUELCH e Operating frequency 445 200 MHz USA 435 200 MHz Other e Receiving e Operating frequency 910 200 MHz IF band width Wide e Connect the SSG to the antenna connector and set as Level 110 dBm 0 71 uV USA 119 dBm 0 25 uV Other e Receiving Push the SET key 3 times Push the SET key e Operating frequency 910 200 MHz e Receiving This output level of the standard signal generator SSG is indicated as SSG s open circuit Push the SET key 3 times 4 ADJUSTMENT MODE CONTENTS LIST Some adjustment frequency depend on the version Left band VHF Right band UHF Frequency display 62 Frequency display 440 000 Mch Ad 440 000 dA 440 000 8A 440 000 Sae 440 000 80 440 000 8c 440 000 557 6 440 000 Adjustment contents Initial data Presetting value Change inhibited Fe 440 000 Frequency adjustment Change permitted O O NI ODO oO
15. s Level Modulation Deviation e Receiving 124 dBm 0 14 uV 1 kHz 3 5 kHz Push the SET key Operating frequency e Receiving 220 365 MHz Push the SET key 3 times Sq USA Operating frequency IF band width 220 365 MHz Narrow Connect the SSG to the antenna connector and set as Level Modulation Deviation e Receiving 124 dBm 0 14 uV 1 kHz 1 75 kHz Set the FM N mode and then push the SET key Operating frequency e IF bandwidth e Receiving 220 365 MHz Narrow This output level of the standard signal generator SSG is indicated as SSG s open circuit e Set the FM N mode and then push the SET key Repeat the above operation 3 times SOFTWARE ADJUSTMENT RECEIVING Continued ADJUSTMENT ADJUSTMENT CONDITION 350 085 MHz Wide e Operating frequency e IF band width e Connect the SSG to the antenna connector and set as Level Modulation Deviation e Receiving 124 dBm 0 14 uV 1 kHz 3 5 kHz OPERATION Push the SET key Operating frequency 350 085 MHz e Receiving Push the SET key 3 times 350 085 MHz Narrow Operating frequency e IF bandwidth e Connect the SSG to the antenna connector and set as Level Modulation Deviation e Receiving 124 dBm 0 14 uV 1 kHz 1 75 kHz Set the FM N mode and then push the SET key
16. the SET key Operating frequency e Receiving 445 200 MHz 435 200 MHz USA Other Push the SET key e Operating frequency e Receiving 910 200 MHz This output level of the standard signal generator SSG is indicated as SSG s open circuit Push the SET key SOFTWARE ADJUSTMENT RECEIVING Continued ADJUSTMENT SQUELCH LEFT BAND1 e Operating frequency IF bandwidth ADJUSTMENT CONDITION 145 300 MHz 146 300 MHz USA AUS SEA EXP TPE KOR Wide e Connect the SSG to the antenna connector and set as Level Modulation Deviation e Receiving 129 dBm 0 079 uV 1 kHz 3 5 kHz OPERATION Push the SET key e Operating frequency e Receiving 145 300 MHz 146 300 MHz USA AUS SEA EXP TPE KOR Push the SET key 3 times USA only e Operating frequency IF band width 146 300 MHz Narrow e Connect the SSG to the antenna connector and set as Level Modulation Deviation e Receiving 129 dBm 0 079 uV 1 kHz 1 75 kHz Set the FM N mode and then push the SET key Operating frequency e IF bandwidth e Receiving 146 300 MHz Narrow e Set the FM N mode and then push the SET key Repeat the above operation 3 times e Operating frequency IF band width 220 365 MHz Wide e Connect the SSG to the antenna connector and set a
17. ws are registered trademarks of Microsoft Corporation in the U S A and other countries IBM is a registered trademark of International Business Machines in the U S A and other countries CONNECTION Standard signal generator 127 to 17 dBm 0 1 uV to 32 mV CAUTION DO NOT transmit while the SSG is connected to the antenna connector FM deviation meter DC measurable RF power meter 50 Q 1 100 W Attenuator 40 dB or 50 dB L Personal computer DC power 13 8V supply to DC 13 8V 20A to the antenna rer cD Frequency v g ae a to RS 232C port OPC 478 RS 232C type OPC 478U USB type counter v to ANT to SP2 Audio generator 2 ENTERING THE ADJUSTMENT MODE Install the CS 2720 CLONING SOFTWARE Refer to the CS 2720 instruction manual in detail Right click the CS 2720 s icon on the desktop then select the Property Add FX 2492AdjustStart to the end of command line as follow C Program Files CS 2720 CS2720 exe _FX 2492AdjustStart Connect the OPC 478 U CLONING CABLE to the speaker jack SP2 then double click the CS 2720 s icon to run the program Click the File on the menu bar and select the Open to read the icf file Select the file according to the version as follow
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