Instruction Manual
Page 11
...In the data mode, push to return to the normal AM or FM mode. @7 C OMPRESSOR SWITCH [COMP] (p. 64) @5 P REAMP•ATTENUATOR SWITCH [P.AMP•ATT] PREAMP SWITCH Operation (p. 55) Push to select one of three IF filter settings ( / / ). 12 • The selected filter passband ... • "D" appears in -between semi • "RTTY" or "RTTY-R" appears. tion. [AM/FM] ➥ Push to bypass them. • "P. AMP " is ON. 19 into the microphone; Select "P. The attenuator prevents a desired signal from a broadcasting station, are ON, the RIT/∂TX offset is not ...
...In the data mode, push to return to the normal AM or FM mode. @7 C OMPRESSOR SWITCH [COMP] (p. 64) @5 P REAMP•ATTENUATOR SWITCH [P.AMP•ATT] PREAMP SWITCH Operation (p. 55) Push to select one of three IF filter settings ( / / ). 12 • The selected filter passband ... • "D" appears in -between semi • "RTTY" or "RTTY-R" appears. tion. [AM/FM] ➥ Push to bypass them. • "P. AMP " is ON. 19 into the microphone; Select "P. The attenuator prevents a desired signal from a broadcasting station, are ON, the RIT/∂TX offset is not ...
Instruction Manual
Page 19
.... 53, 65) ➥ "RIT" appears when the RIT function is ON. ➥ "∂TX" appears when the ∂TX function is ON; " " for slow AGC; AMP " for preamp 1; lected. @1 BREAK-IN ICONS (p. 63) ➥ "F BK-IN" appears when the Full Break-in function is ON. ➥ "BK-IN" appears when the... when the Monitor function is ON. @3 PREAMP ICONS (p. 55) Appears when a preamplifier is se- lected. • "ANT2" appears when the [ANT2] connector is ON. • "P. AMP " for preamp 2. @4 ATTENUATOR ICON (p. 55) Appears when the Attenuator is se-
.... 53, 65) ➥ "RIT" appears when the RIT function is ON. ➥ "∂TX" appears when the ∂TX function is ON; " " for slow AGC; AMP " for preamp 1; lected. @1 BREAK-IN ICONS (p. 63) ➥ "F BK-IN" appears when the Full Break-in function is ON. ➥ "BK-IN" appears when the... when the Monitor function is ON. @3 PREAMP ICONS (p. 55) Appears when a preamplifier is se- lected. • "ANT2" appears when the [ANT2] connector is ON. • "P. AMP " for preamp 2. @4 ATTENUATOR ICON (p. 55) Appears when the Attenuator is se-
Instruction Manual
Page 26
Refer to a non-Icom DC POWER SUPPLY Transceiver For European versions Transceiver AC outlet Ground A DC power supply 13.8 V; Red : Positive ..., use a power supply with 13.8 V DC output and a capacity of the power source is 12-15 V when you use a non-Icom power supply. • DC power cable polarity is OFF. • Output voltage of at least 23 A +_ To [DC 13.8V]... Supplied DC power cable To [DC 13.8V] Connect to power supply 19 at least 23 Amps. CAUTION: Before connecting the DC power cable, check the following important items. Make sure: • The [POWER] switch is correct....
Refer to a non-Icom DC POWER SUPPLY Transceiver For European versions Transceiver AC outlet Ground A DC power supply 13.8 V; Red : Positive ..., use a power supply with 13.8 V DC output and a capacity of the power source is 12-15 V when you use a non-Icom power supply. • DC power cable polarity is OFF. • Output voltage of at least 23 A +_ To [DC 13.8V]... Supplied DC power cable To [DC 13.8V] Connect to power supply 19 at least 23 Amps. CAUTION: Before connecting the DC power cable, check the following important items. Make sure: • The [POWER] switch is correct....
Instruction Manual
Page 62
...Attenuator. • "ATT" appears when the Attenuator is used in the receiver front end, to set for 1.8 to 50 MHz bands. [P.AMP•ATT] ✔ About the "P.AMP2" preamplifier The preamp 2 is insufficient when using low-gain antennas, or while using a narrow band ... ratio and sensitivity. 5 FUNCTIONS FOR RECEIVE ■ Preamplifier The preamplifier amplifies weak signals in the presence of strong electromagnetic fields, distortion sometimes results. AMP " is displayed when the preamp 1 or preamp 2 is ON. • N o indicator is displayed when the preamp is most effective for ...
...Attenuator. • "ATT" appears when the Attenuator is used in the receiver front end, to set for 1.8 to 50 MHz bands. [P.AMP•ATT] ✔ About the "P.AMP2" preamplifier The preamp 2 is insufficient when using low-gain antennas, or while using a narrow band ... ratio and sensitivity. 5 FUNCTIONS FOR RECEIVE ■ Preamplifier The preamplifier amplifies weak signals in the presence of strong electromagnetic fields, distortion sometimes results. AMP " is displayed when the preamp 1 or preamp 2 is ON. • N o indicator is displayed when the preamp is most effective for ...
Instruction Manual
Page 103
...8226; The Passband Tuning function is turned ON. • Hold down [PBT-CLR] for 1 second to manually p. 83 tune the antenna. • P ush [P.AMP/ATT] to turn OFF the attenuator. p. 34 wise. • The antenna for another band is selected. • Select an antenna suitable for the operating p. 82... function is turned ON. • Push [RIT] or [∂TX] to receive or check the p. 34 SEND line of this chart, contact your nearest Icom Dealer or Service Center. ham band. when the [POWER] switch is • A fuse is not matched. • Select a suitable operating mode. If...
...8226; The Passband Tuning function is turned ON. • Hold down [PBT-CLR] for 1 second to manually p. 83 tune the antenna. • P ush [P.AMP/ATT] to turn OFF the attenuator. p. 34 wise. • The antenna for another band is selected. • Select an antenna suitable for the operating p. 82... function is turned ON. • Push [RIT] or [∂TX] to receive or check the p. 34 SEND line of this chart, contact your nearest Icom Dealer or Service Center. ham band. when the [POWER] switch is • A fuse is not matched. • Select a suitable operating mode. If...
Instruction Manual
Page 105
CAUTION: The IC-7410 has been thoroughly adjusted and tested at 15.000.00 MHz) as a standard frequency, set - e S et the frequency to the standard frequency station minus 1 kHz. ... mode. [AF] [RF/SQL] [∫] [√] [PBT-CLR] [MENU] [SSB] [P.AMP÷ATT] [DIAL] [RIT] [∂TX] • Calibration marker item SET C a l i b r a t i o n M a r k e r Ù 47 Ú OFF • REF Adjust item SET R E F A d j u s t Ù 48 Ú 50% ■ About protection displays The IC-7410 2-step protection function monitors the power amplifier temperature and activates when...
CAUTION: The IC-7410 has been thoroughly adjusted and tested at 15.000.00 MHz) as a standard frequency, set - e S et the frequency to the standard frequency station minus 1 kHz. ... mode. [AF] [RF/SQL] [∫] [√] [PBT-CLR] [MENU] [SSB] [P.AMP÷ATT] [DIAL] [RIT] [∂TX] • Calibration marker item SET C a l i b r a t i o n M a r k e r Ù 47 Ú OFF • REF Adjust item SET R E F A d j u s t Ù 48 Ú 50% ■ About protection displays The IC-7410 2-step protection function monitors the power amplifier temperature and activates when...
Instruction Manual
Page 117
... 50 MHz Squelch sensitivity SSB : Less than 5.6 µV*4 FM : Less than 0.32 µV*4 SSB : Less than 5.6 µV*5 FM : Less than 0.32 µV*5 *4 Pre-amp 1 is ON. *5 Pre-amp 2 is ON. • Selectivity (IF filter shape is set to SHARP.) SSB (BW: 2.4 kHz) : More than 2.4 kHz/-6 dB Less than 3.4 kHz/-40 dB CW...
... 50 MHz Squelch sensitivity SSB : Less than 5.6 µV*4 FM : Less than 0.32 µV*4 SSB : Less than 5.6 µV*5 FM : Less than 0.32 µV*5 *4 Pre-amp 1 is ON. *5 Pre-amp 2 is ON. • Selectivity (IF filter shape is set to SHARP.) SSB (BW: 2.4 kHz) : More than 2.4 kHz/-6 dB Less than 3.4 kHz/-40 dB CW...
Service Manual
Page 7
• MAIN UNIT (TOP VIEW) D/A CONVERTER (IC3204) 3RD TX IF MIXER (IC3621) AGC BUFFER (IC4601) VOX BUFFER (IC4403) MAIN CPU (IC1201) CI-V LINE BUFFER (IC1001) MAIN CPU (IC1201) TX POWER LEVEL BUFFER (IC1163) CPLD (IC1261) DC-DC CONVERTER (IC2001, D2001, D2002) S/P CONVERTER (IC3201) DC AMP (IC3271) CURRENT AMP (IC3251) DC AMP (IC3675) AGC LEVEL DETECT (IC3532) VCA (IC3401) VOX LPF (IC3452) CODEC IC (IC4461) DSP (IC4001) EEPROM (IC4202) 2 - 3
• MAIN UNIT (TOP VIEW) D/A CONVERTER (IC3204) 3RD TX IF MIXER (IC3621) AGC BUFFER (IC4601) VOX BUFFER (IC4403) MAIN CPU (IC1201) CI-V LINE BUFFER (IC1001) MAIN CPU (IC1201) TX POWER LEVEL BUFFER (IC1163) CPLD (IC1261) DC-DC CONVERTER (IC2001, D2001, D2002) S/P CONVERTER (IC3201) DC AMP (IC3271) CURRENT AMP (IC3251) DC AMP (IC3675) AGC LEVEL DETECT (IC3532) VCA (IC3401) VOX LPF (IC3452) CODEC IC (IC4461) DSP (IC4001) EEPROM (IC4202) 2 - 3
Service Manual
Page 11
... applied to or bypassed the preamplifier circuits. • ANTENNA SWITCHING CIRCUITS TO PREAMPLIFIER CIRCUITS To the 1st RX IF circuits Q511/Q512 PRE AMP Q532 PRE AM P 0.03-1.6 MHz LPF 1.6-2.0 MHz BPF 2.0-4.0 MHz BPF 4.0-8.0 MHz BPF 8.0-11.0 MHz BPF 11.0-15.0 MHz BPF 15.0-22.0 MHz BPF 22.0-30...
... applied to or bypassed the preamplifier circuits. • ANTENNA SWITCHING CIRCUITS TO PREAMPLIFIER CIRCUITS To the 1st RX IF circuits Q511/Q512 PRE AMP Q532 PRE AM P 0.03-1.6 MHz LPF 1.6-2.0 MHz BPF 2.0-4.0 MHz BPF 4.0-8.0 MHz BPF 8.0-11.0 MHz BPF 11.0-15.0 MHz BPF 15.0-22.0 MHz BPF 22.0-30...
Service Manual
Page 12
...• 1ST RX IF AND 2ND RX IF CIRCUITS IC1222 IC1222 To the demodulator circuits Σ 90deg IC1221 IF AMP Q1201 BUFF IC1221 IF AMP Q1251 BUFF D1102 Q1071/Q1072 IF AMP Q1051 IF AMP D1101 FI911 64.455MHz(BW=15kHz) XTAL BPF FL-430(Optional) 64.455MHz(BW=6kHz) XTAL BPF IC1121 BUFF... signal. IC4602/IC4603), and then applied to the CODEC (IC4651) to the CONNECT UNIT. • DEMODULATOR CIRCUITS IC4461 IC4483 To the RX AF circuits AMP IC4001 DSP IC4651 IC4603 LPF IC4603 LPF IC4602 BUFF IC4604 MUTE From the 2nd RX circuits CODEC CODEC IC1201 MAIN CPU IC1261 CPLD MAIN UNIT...
...• 1ST RX IF AND 2ND RX IF CIRCUITS IC1222 IC1222 To the demodulator circuits Σ 90deg IC1221 IF AMP Q1201 BUFF IC1221 IF AMP Q1251 BUFF D1102 Q1071/Q1072 IF AMP Q1051 IF AMP D1101 FI911 64.455MHz(BW=15kHz) XTAL BPF FL-430(Optional) 64.455MHz(BW=6kHz) XTAL BPF IC1121 BUFF... signal. IC4602/IC4603), and then applied to the CODEC (IC4651) to the CONNECT UNIT. • DEMODULATOR CIRCUITS IC4461 IC4483 To the RX AF circuits AMP IC4001 DSP IC4651 IC4603 LPF IC4603 LPF IC4602 BUFF IC4604 MUTE From the 2nd RX circuits CODEC CODEC IC1201 MAIN CPU IC1261 CPLD MAIN UNIT...
Service Manual
Page 13
... modulated. The amplified MIC signal is applied to the modulation circuits. • TX AF CIRCUITS FRONT PANEL IC3401 IC3421 MIC MIC AMP VCA CONNECT UNIT AMP VCA IC3452 AMP IC3452 LPF IC3452 LPF To the modulation circuits MODULATION CIRCUITS (MAIN UNIT) The MIC signal from the TX AF circuits is passed... through the MICROPHONE CONNECTOR (MIC BOARD; The level-adjusted AF signal is applied to the AF power AMP (IC351), through the MIC line SW (IC3421). The MIC signal from the accessory socket [ACC1] on the rear panel, is directly applied to...
... modulated. The amplified MIC signal is applied to the modulation circuits. • TX AF CIRCUITS FRONT PANEL IC3401 IC3421 MIC MIC AMP VCA CONNECT UNIT AMP VCA IC3452 AMP IC3452 LPF IC3452 LPF To the modulation circuits MODULATION CIRCUITS (MAIN UNIT) The MIC signal from the TX AF circuits is passed... through the MICROPHONE CONNECTOR (MIC BOARD; The level-adjusted AF signal is applied to the AF power AMP (IC351), through the MIC line SW (IC3421). The MIC signal from the accessory socket [ACC1] on the rear panel, is directly applied to...
Service Manual
Page 14
... • BPF CIRCUITS From the 1st TX IF circuits 0.03-1.6 MHz LPF 1.6-2.0 MHz BPF HPF IC201 YGR AMP To the TX amplifier circuits BPF 2.0-4.0 MHz BPF 4.0-8.0 MHz BPF 8.0-11.0 MHz BPF BPF UNIT 11.0-15.0...- 4 The filtered 2nd TX IF signal is amplified by the 2nd TX IF AMP (Q3651), and then applied to remove unwanted signals. BPF CIRCUITS The TX signal from the 1st TX ...3RD TX IF AND 2ND TX IF CIRCUITS From the modulation circuits IC4661 AMP IC3601 AMP IC3621 Q3631 IF AMP FI3641 CERAMIC BPF Q3651 IF AMP D3671 64.455 MHz BPF To the 1st TX IF circuits 491 kHz...
... • BPF CIRCUITS From the 1st TX IF circuits 0.03-1.6 MHz LPF 1.6-2.0 MHz BPF HPF IC201 YGR AMP To the TX amplifier circuits BPF 2.0-4.0 MHz BPF 4.0-8.0 MHz BPF 8.0-11.0 MHz BPF BPF UNIT 11.0-15.0...- 4 The filtered 2nd TX IF signal is amplified by the 2nd TX IF AMP (Q3651), and then applied to remove unwanted signals. BPF CIRCUITS The TX signal from the 1st TX ...3RD TX IF AND 2ND TX IF CIRCUITS From the modulation circuits IC4661 AMP IC3601 AMP IC3621 Q3631 IF AMP FI3641 CERAMIC BPF Q3651 IF AMP D3671 64.455 MHz BPF To the 1st TX IF circuits 491 kHz...
Service Manual
Page 15
...picked up by C101, C105 and R105, are the same when the connected load (=antenna) is picked up by L401, rectified by C-MOS IC (IC111). RESISTANCE DETECTION CIRCUIT A portion of the tuner CPU (IC701). And these voltages are rectified by D102 and D101, and amplifi... TUNING AND SWITCHING CIRCUITS (CTRL UNIT) The TX signal from the BPF UNIT is sequentially amplified by the pre-drive AMP (Q201), drive AMP (Q221, Q222), and power AMP (Q241, Q242). Refering to the detected parameters, the tuner CPU (IC701) controls the tuning networks on the NETWORK UNIT, to the A/D...
...picked up by C101, C105 and R105, are the same when the connected load (=antenna) is picked up by L401, rectified by C-MOS IC (IC111). RESISTANCE DETECTION CIRCUIT A portion of the tuner CPU (IC701). And these voltages are rectified by D102 and D101, and amplifi... TUNING AND SWITCHING CIRCUITS (CTRL UNIT) The TX signal from the BPF UNIT is sequentially amplified by the pre-drive AMP (Q201), drive AMP (Q221, Q222), and power AMP (Q241, Q242). Refering to the detected parameters, the tuner CPU (IC701) controls the tuning networks on the NETWORK UNIT, to the A/D...
Service Manual
Page 16
... (Q552 and Q571). L868-L870, C872-C876 or L861-L864, C866-C870 or L871, C879, C880), and amplified by the LO AMP (Q811), and then applied to the PLL IC (IC201) as the reference frequency signal. The 1st RX/TX LO signal is applied to the RF-A UNIT, through the buffer (Q301... 388.5MHz IC351 FI401 64.455MHz BUFF BPF DD S LPF ATT BRF ATT Reference frequency signal oscillator Q151 32MHz BUFF X151 LPF Q201 IC201 PLL AMP IC REF=500kHz Q251 Q271 BUFF 64.485-86.455MHz BPF 1st RX IF mixer Q721/Q722/Q723/Q724 1st RX LO Lo LPF Q811 LO...
... (Q552 and Q571). L868-L870, C872-C876 or L861-L864, C866-C870 or L871, C879, C880), and amplified by the LO AMP (Q811), and then applied to the PLL IC (IC201) as the reference frequency signal. The 1st RX/TX LO signal is applied to the RF-A UNIT, through the buffer (Q301... 388.5MHz IC351 FI401 64.455MHz BUFF BPF DD S LPF ATT BRF ATT Reference frequency signal oscillator Q151 32MHz BUFF X151 LPF Q201 IC201 PLL AMP IC REF=500kHz Q251 Q271 BUFF 64.485-86.455MHz BPF 1st RX IF mixer Q721/Q722/Q723/Q724 1st RX LO Lo LPF Q811 LO...
Service Manual
Page 17
... Description I/O 12 FORL Forward wave detect voltage. (A/D) I 1 REFL Reflected wave detect voltage. (A/D) I 14 ALCL ALC meter voltage input. (A/D) I 5 IDL Drive AMP current (ID) detect voltage. (A/D) I 4 VDL Drive AMP voltage (VD). (A/D) I 16 RTDM RTTY decode data from the DSP. I 84 H8_ WAIT# Bus control "Wait" signal. I 15 THML Temperature sensing voltage...
... Description I/O 12 FORL Forward wave detect voltage. (A/D) I 1 REFL Reflected wave detect voltage. (A/D) I 14 ALCL ALC meter voltage input. (A/D) I 5 IDL Drive AMP current (ID) detect voltage. (A/D) I 4 VDL Drive AMP voltage (VD). (A/D) I 16 RTDM RTTY decode data from the DSP. I 84 H8_ WAIT# Bus control "Wait" signal. I 15 THML Temperature sensing voltage...
Service Manual
Page 64
SECTION 7. J111 TO CFL S714 P.AMP ATT P.AMP/ATT S713 VOX/BK-IN VOX/BK-IN S712 COMP COMP S711 MONITOR MONITOR S682 SPEECH SPEECH S671 RIT RIT S661 S662 CLEAR dTX CLEAR ...
SECTION 7. J111 TO CFL S714 P.AMP ATT P.AMP/ATT S713 VOX/BK-IN VOX/BK-IN S712 COMP COMP S711 MONITOR MONITOR S682 SPEECH SPEECH S671 RIT RIT S661 S662 CLEAR dTX CLEAR ...
Service Manual
Page 85
...THRI ISTA Q3305/Q3306 KTC2875/KRC402 TIME-CTRL Q3303 2SA1586 CTRL IKEY PA-A PWRS EKEY ESTA BUFF IC1041 SN74AHC1G04 IC1001 TC7WH04F EXT ALC-AMP IC1163 NJM4558M BUFF FORL BUFF IC2001/D2001/D2002 BD9302/RB081LX2 ALCL MP1XL HTHML MULTI DC-DC 3R3V IPD L IC1163 X NJM4558M REFL... F MAGC_DET IC4601 NJM4558 MADS BUFF IC4661 TS522ID BUFF AGC OUT IC3523 NJM072 AGC AM P IC3532 TS522ID AGC DET IC3532 TS522ID IF AMP MCLK24M DSP_CLK24 MADS MCLK24M BUFF IC3955 SN74AHC1G04 IC3913 SN74LVC2GU04 AM P AM P IC3913 SN74LVC2GU04 CODEC_CLK PLL 64.455MHz BPF HTIF HRIF HAGC H8_A0...
...THRI ISTA Q3305/Q3306 KTC2875/KRC402 TIME-CTRL Q3303 2SA1586 CTRL IKEY PA-A PWRS EKEY ESTA BUFF IC1041 SN74AHC1G04 IC1001 TC7WH04F EXT ALC-AMP IC1163 NJM4558M BUFF FORL BUFF IC2001/D2001/D2002 BD9302/RB081LX2 ALCL MP1XL HTHML MULTI DC-DC 3R3V IPD L IC1163 X NJM4558M REFL... F MAGC_DET IC4601 NJM4558 MADS BUFF IC4661 TS522ID BUFF AGC OUT IC3523 NJM072 AGC AM P IC3532 TS522ID AGC DET IC3532 TS522ID IF AMP MCLK24M DSP_CLK24 MADS MCLK24M BUFF IC3955 SN74AHC1G04 IC3913 SN74LVC2GU04 AM P AM P IC3913 SN74LVC2GU04 CODEC_CLK PLL 64.455MHz BPF HTIF HRIF HAGC H8_A0...