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Summary of Contents for Icom IC-F4001
- Page 1 UHF TRANSCEIVERS S-14617XZ-C1 Nov. 2009...
- Page 2 8. READ the instructions of the test equipment throughly before connecting it to the transceiver. Icom, Icom Inc. and the Icom logo are registered trademarks of Icom Incorporated (Japan) in Japan, the United States, the United Kingdom, Germany, France, Spain, Russia and/or other countries.
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Page 3: Table Of Contents
TABLE OF CONTENTS SECTION SPECIFICATIONS SECTION INSIDE VIEWS SECTION DISASSEMBLY INSTRUCTION SECTION CIRCUIT DESCRIPITON RECEIVER CIRCUITS............4-1 TRANSMITTER CIRCUITS . -
Page 4: Specifications
: –30˚C to +60˚C; –22˚F to +140˚F Except [EUR], [UK] –25˚C to +55˚C [EUR], [UK] • Power supply voltage : Specified Icom's battery packs only (7.2 V DC; negative ground) • Current drain (Approx.) : Receiving 70 mA (stand-by) 330 mA (max. audio) Transmitting 1.3 A (at 4.0 W) - Page 5 RECEIVER • Sensitivity : 0.25 µV typ. at 12 dB SINAD Except [EUR], [UK] –4 dBµV (EMF) typ. at 20 dB SINAD [EUR], [UK] • Squelch sensitivity (at threshold) : 0.25 µV typ. Except [EUR], [UK] –4 dBµV (EMF) typ. [EUR], [UK] •...
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Page 6: Inside Views
SECTION 2. INSIDE VIEWS • MAIN-A UNIT (TOP VIEW) +5V LINE REGULATOR (Q75) +5V LINE REGULATOR (Q76) CPU5 LINE REGULATOR (IC54) APC AMP (IC1) TCXO PLL IC (X2) (IC2) 2ND IF BPF (FI2) 2ND IF BPF (For narrow mode only) (FI3) MIC GAIN CONTROLLER (Q51) - Page 7 • MAIN-A UNIT (BOTTOM VIEW) +5V LINE REGULATOR (Q74) AF AMP (IC55) TUNED BPF (D24, D26) POWER CTRL RF AMP (Q63) (Q22) AGC CTRL (Q21) POWER AMP (Q1) XTAL BPF (FI1) DRIVE AMP (Q2) 1ST IF MIXER PRE-DRIVE AMP (Q23) (Q3) IF DEMODULATOR IC PRE-AMP...
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Page 8: Disassembly Instruction
SECTION 3. DISASSEMBLY INSTRUCTION 1. REMOVING THE CHASSIS 4) CAREFULLY lift the chassis out of the FRONT PANEL 1) Remove the ANT connector nut and 2 knobs. and turn it over in order to unplug the speaker wire. CHASSIS SPEAKER WIRE FRONT PANEL 5) Remove the seals and nuts from the CHASSIS. -
Page 9: Circuit Descripiton
SECTION 4. CIRCUIT DESCRIPTION 4-1 RECEIVER CIRCUITS 2ND IF CIRCUITS AND DEMODULATOR RF CIRCUITS The signal from the 1st IF circuits is applied to the IF The RX signal from the antenna is passed through the LPF demodulator IC which contains the 2nd IF mixer, 2nd IF and antenna SW, then filtered by the 2-staged tuned BPF AMP, FM detector, etc. -
Page 10: Transmitter Circuits
RX AF CIRCUITS 4-2 TRANSMITTER CIRCUITS The demodulated AF signal from the IF demodulator TX AF CIRCUITS IC is passed through the LPF, HPF which attenuates The audio signal from the internal or external microphone frequencies 300 Hz and below. The filtered AF signal is (MIC signal) is passed through the MIC gain SW and applied passed through the AF line SW, HPF which additionally to the MIC AMP. -
Page 11: Frequency Synthesizer Circuits
TX AMPLIFIERS 4-3 FREQUENCY SYNTHESIZER CIRCUITS The buffer amplified signal from the LO SW (D5) is amplified The RX VCO is composed of Q13, D11 and D12. The VCO by; the pre-AMP, pre-drive AMP, drive AMP, and power AMP output signal is buffer-amplified by two buffers and applied in sequence, to obtain TX power. -
Page 12: Port Allocations
4-5 PORT ALLOCATIONS • CPU (IC51) LINE LINE DESCRIPTION DESCRIPTION NAME NAME Tone signal (CTCSS/DTCS) A/D conversion select. CDEC ADSW H=RSSI input, L=BATV input decoding input. Noise level detect. Tone signal (5/2 TONE, DTMF, STONE NOIS BIIS) decoding/encoding . H=Squelch close Clock frequency shift. -
Page 13: Adjustment Procedures
SECTION 5. ADJUSTMENT PROCEDURE 5-1 PREPARATION ¤ REQUIRED EQUIPMENTS EQUIPMENT GRADE AND RANGE EQUIPMENT GRADE AND RANGE CS-F3000 CLONING SOFTWARE Modifi ed OPC-478/U/UC Cloning software JIG cable (Revision 1.0 or later) (See the illusted below) Measuring range : 0.1–6 W Frequency range : 0.1–600 MHz RF power meter... - Page 14 ¤ CONNECTION OPC-478 (RS-232C type) to RS-232C port Standard signal generator to the antenna connector –20 to 90 dBµ (–127 to –17 dBm) to USB port OPC-478U NEVER transmit while (USB type) an SSG is connected to to USB port the antenna connector.
- Page 15 ¤ ADJUSTMENT CHANNELS Before starting the adjustments, use the cloning software to create the same cloning fi le as shown below, then upload it into the transceiver. CONVENIENT: The same cloning file is available. Right-click below, and select "Save Embeded File to Disk."...
- Page 16 ¤ ADJUSTMENT UTILITY Click or [Read <– TR] in the [Adjust] menu to open the "Adjust Utility" window as shown below. Click to open the “I/O Check window” ADJ. CHANNEL TX OUTPUT POWER MOD. BALANCE DEVIATION CTCSS\DTCS SQUELCH REF. FREQUENCY RX SENSITIVITY LOCK VOLTAGE (Adjustment)
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Page 17: Frequency Adjustment
5-2 FREQUENCY ADJUSTMENTS 1) Select an adjustment item using [↑]/[↓] on the PC's keyboard. 2) Set or modify the adjustment value as specifi ed using [←]/[→] on the PC's keyboard, then push [ENTER]. TRANSCEIVER’S ADJUSTMENT ADJUSTMENT OPERATION VALUE CONDITION ITEM PLL LOCK •... -
Page 18: Transmit Adjustment
5-3 TRANSMIT ADJUSTMENTS 1) Select an adjustment item using [↑]/[↓] on the PC's keyboard. 2) Set or modify the adjustment value as specifi ed using [←]/[→] on the PC's keyboard, then push [ENTER]. TRANSCEIVER’S ADJUSTMENT ADJUSTMENT OPERATION VALUE CONDITION ITEM TX OUTPUT 1 •... -
Page 19: Receive Adjustment
5-4 RECEIVE ADJUSTMENTS 1) Select an adjustment item using [↑]/[↓] on the PC's keyboard. 2) Set or modify the adjustment value as specifi ed using [←]/[→] on the PC's keyboard, then push [ENTER]. TRANSCEIVER’S ADJUSTMENT ADJUSTMENT OPERATION VALUE CONDITION ITEM RX SENSITIVITY •... -
Page 20: Parts List
SECTION 6. PARTS LIST [MAIN-A UNIT] [MAIN-A UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 1110002751 S.IC TA75S01F(TE85R,F) 32.5/8.8 6200013010 S.COI 0.30-0.9-5TL 10.3N <COMO> 12.7/13.4 1140005991 S.IC MB15A02PFV1-G-BND-ERE1 42.9/24.7 6200002851 S.COI NLV25T-R82J 18.2/16.6 1110007320 S.IC NJM2591V-TE1-#ZZZB 45.8/38.9 6200012610 S.COI 0.40-0.9-2TL 2.8N <COMO> 18.2/13.4 IC51 1140015230 S.IC... - Page 21 [MAIN-A UNIT] [MAIN-A UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION R108 7030005080 S.RES ERJ2GEJ 823 X (82K) 19.2/29 R386 7030005060 S.RES ERJ2GEJ 333 X (33K) 73.6/13.8 R109 7030005530 S.RES ERJ2GEJ 100 X (10) 21.2/31 R387 7030005030 S.RES ERJ2GEJ 152 X (1.5K) 73.6/15.6 R110 7030004980 S.RES ERJ2GEJ 101 X (100)
- Page 22 [MAIN-A UNIT] [MAIN-A UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 4030014260 S.CER C1005 JB 1H 331K-T 42.7/10.7 C216 4030019740 S.CER C1005 JB 1H 102K-T 41.4/25.1 4030019740 S.CER C1005 JB 1H 102K-T 42.7/9.8 C217 4030019810 S.CER C1005 JB 1E 103K-T 40.4/25.1 4030009740 S.CER C1005 CH 1H 100C-T 39.1/12.5 C218...
- Page 23 [MAIN-A UNIT] PARTS DESCRIPTION LOCATION C391 4030011320 S.CER C1005 CH 1H 470J-T 37.3/46.3 C393 4520000020 S.NIO NOJC227M006 19.8/40.9 C395 4520000020 S.NIO NOJC227M006 21.7/37.1 C397 4030019740 S.CER C1005 JB 1H 102K-T 26/36.5 C398 4030019740 S.CER C1005 JB 1H 102K-T 12.2/32 C399 4030019930 S.CER C1005 JB 1A 104K-T 22.2/37.1 C400...
- Page 24 SECTION 7. MECHANICAL PARTS [CHASSIS PARTS] [ACCESSORIES] ORDER ORDER DESCRIPTION QTY. DESCRIPTION QTY. 6910021491 ANT CONNECTOR 106-1 (Optional) FA-SC57U-1 (Optional) BP-264 EXP 2510001560 045P01202-02 [USA-11], [USA-12], [EUR-21], [EUR-22], [UK-01], 8900009640 OPC-963 [UK-02], [EXP-11], [EXP-12], [EXP-21], [EXP-22], [EXP-01], [AUS-21], [AUS-22], [RUS-21], [RUS-22] 0910065992 B-7262B (Optional) BP-265...
- Page 25 MP23(C) J1(C) MP20×2(C) MP1(C) MP19(C) ANT PCB MP31×2(C) MP16(C) MP18(C) MP22(C) MP33(C) MAIN UNIT MP31×2(C) S51(M) S54(M) MP17(C) R421(M) MP32(C) J52(M) MC51(M) MP2(M) J51(M) MP27(C) MP13(C) MP34×2(C) MP6(M) MP25(C) MP21(C) MP3(C) MP24(C) MP11(C) MP32(C) MP12(C) MP4(C) MP34×2(C) MP5(C) SP1(C) W1(C) MP9(C) MP15(C) MP14(C)
- Page 26 The combination of top side and bottom side of this SECTION 8. BOARD LAYOUTS Int. SP • MAIN-A UNIT (TOP VIEW) [SPEAKER MICROPHONE JACK] CPU5- C458 C413 C412 IC61 C239 R424 C232 C408 R423 FUSE R136 R463 C395 R135 R310 DISC R401 R137...
- Page 27 The combination of top side and bottom side of this • MAIN-A UNIT (BOTTOM VIEW) R472 EP51 C334 R473 R474 C391 R408 R406 R471 IC53 R128 C226 R146 C236 [VOLUME CONTROL] C235 R456 IC55 R147 C231 C227 -RES C393 R126 R127 R125 PWON...
- Page 28 SECTION 9. BLOCK DIAGRAM 400-470MHz Q11:LDTC144EE 2SK880 2SC4116 RIPPLE LVIN BUFF HVD376B RX VCO Q13:2SC4226 15.3MHz D12:HVD350B IC60 D5:HVD142A D3:HVD142A RD07MUS2B NJM12902 CR-794 2SC5107 2SC5107 D6:HVD142A 2SC5107 2SC3356 RD01MUS1 D 22:HVD142A LOOP TX/RX VCON DRIVE TCXO BUFF BUFF BUFF DRIVE AM P AM P AM P...
- Page 29 SECTION 10. VOLTAGE DIAGRAM MAIN-A UNIT (1/2) R303 IC60 R301 R302 C301 DISC 1.5k SDEC R304 NJM12902V VREF C TCSS/DTCS FILTER R314 IC57 R2A20178 R396 C365 R313 390k C304 270k 3.3k R397 C307 R321 VOUT3 VOUT2 180k R310 R311 R312 VOUT4 VOUT1 IC60...
- Page 30 MAIN-A UNIT (2/2) VCOV M PZ2012S331A MMZ1005Y102C T 2SC4116 RX VCO 6 .8k 6.8k ANT_BOARD HVD376B 10.3N 2SC4226 0.001 0.001 MMZ1005A152ET 13.6N 13.6N 2.8N 2.8N HVD142A HVD142A 0.75P 2.5P 0.47 SVA RD01MUS 1 1.5P PLST TX VCO PLST 0.47U C107 2SC5107 2SC5107 TMUT...
- Page 31 Highway 17 Delta, B.C., V4K 5B8, Canada : http://www.icomspain.com Phone : +1 (604) 952-4266 Fax : +1 (604) 952-0090 E-mail : icom@icomspain.com : http://www.icomcanada.com E-mail : info@icomcanada.com Blacksole House, Altira Park, Herne Bay, Kent CT6 6GZ, UK Phone : +44 (01227) 741741...
- Page 32 S-14617XZ-C1 1-1-32, Kamiminami, Hirano-ku, Osaka 547-0003, Japan © 2009 Icom Inc.
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Questions and answers
ptt pressed but not tx
The Icom IC-F4001 may not be transmitting when the PTT is pressed due to several possible reasons:
1. Transmit Inhibit Function – Transmission is restricted if:
- The channel is muted (PMR operation only).
- The channel is busy.
- A signal with an unmatched (or matched) CTCSS or DTCS tone is received.
- The selected channel is a "receive only" channel.
2. Time-Out Timer – If the transceiver has been transmitting continuously beyond the pre-programmed time limit, the time-out timer activates and stops further transmission.
3. Penalty Timer – After the time-out timer activates, the penalty timer may further inhibit transmission for a set period.
4. Power Supply Issues – If the transceiver is connected to a power supply with incorrect voltage or reversed polarity, it may not function properly.
5. Antenna Damage – If an RF signal stronger than 20 dBm (100 mW) was applied to the antenna connector, the transceiver’s front-end could be damaged, affecting transmission.
Checking these factors can help identify and resolve the issue.
This answer is automatically generated
Q73 trasistor does not work when PTT pressed but software is ok