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SERVICE

MANUAL

VHF FM TRANSCEIVERS

S-14303HZ-C1
July 2006

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Summary of Contents for IC-F3021S

Page 1: ...SERVICE MANUAL VHF FM TRANSCEIVERS S 14303HZ C1 July 2006 ...

Page 2: ...t to change without notice or obligation INTRODUCTION CAUTION ORDERING PARTS MODEL Key Pad VERSION SYMBOL Channel Spacing IC F3021T 10 key U S A USA 02 15 0 kHz 30 0 kHz IC F3021S 4 key IC F3022T 10 key Europe EUR 02 12 5 kHz 20 0 kHz 25 0 kHz IC F3022S 4 key IC F3023T 10 key General GEN 02 12 5 kHz 25 0 kHz IC F3023S 4 key 1 Make sure a problem is internal before disassembling the transceiver 2 D...

Page 3: ... PLL CIRCUITS 5 4 5 4 DIGITAL CIRCUITS 5 5 5 5 POWER SUPPLY CIRCUITS 5 5 5 6 PORT ALLOCATIONS 5 5 SECTION 6 ADJUSTMENT PROCEDURES 6 1 PREPARATION 6 1 6 2 FREQUENCY ADJUSTMENT 6 4 6 3 TRANSMIT ADJUSTMENT 6 5 6 4 RECEIVE ADJUSTMENT 6 6 SECTION 7 PARTS LIST SECTION 8 MECHANICAL PARTS AND DISASSEMBLY SECTION 9 SEMICONDUCTOR INFORMATION SECTION 10 BOARD LAYOUTS SECTION 11 BLOCK DIAGRAM SECTION 12 VOLTA...

Page 4: ...iddle More than 70 dB 80 dB typ Narrow More than 60 dB 70 dB typ Audio harmonic distortion 3 typ with 1 kHz AF 40 deviation FM hum and noise without CCITT filter Wide More than 40 dB 46 dB typ Narrow More than 34 dB 40 dB typ Residual modulation with CCITT filter Wide More than 45 dB 53 dB typ Middle More than 43 dB 51 dB typ Narrow More than 40 dB 48 dB typ Limiting charact of modulation 60 100 o...

Page 5: ...62364FP Crystal oscillator 15 3 MHz X2 CR 783 VCO circuits RX VCO Q17 2SC5006 D9 D11 D33 HVC375B TX VCO Q16 2SC5006 D10 D13 D34 HVC375B R5 regulator Q25 2SA1577 S5 regulator Q23 2SA1577 T5 regulator Q24 2SA1577 Q49 UNR9213J Ceramic filter 450 KHz FI2 CFWM450F CPU5 regulator IC17 NJM2870 PLL IC IC2 MB15A02PFV1 AF amplifier IC15 TA7368FG IF amplifier Q7 2SC5107 IF IC IC9 TA31136FNG Pre drive amplifi...

Page 6: ...ob B w Unscrew 2 screws C and remove the jack panel e Unscrew 2 screws D and unplug the connector E from the chassis unit r Take off the chassis unit in the direction of the arrow from the front panel e Unscrew 6 screws J r Remove the side plate I t Unsolder 8 points K and remove the shield cover y Unsolder 8 points L and take off the MAIN UNIT in the direction of the arrow Continued to right abov...

Page 7: ...hen uninstalling the unit Be sure to re solder the cut points as below when you remove the unit Otherwise no transmit modulation or receive AF output is available DISC MIC e Cut the pattern on the PC board at MIC and DISC as below This modification is not necessary for UT 108R installation r Install the unit as below Re solder t Remove the paper backing of the supplied unit cover and attach the un...

Page 8: ...ssed through the 1st IF filter FI1 to filter out adjacent signals then applied to the 1st IF amplifier Q7 The amplified 1st IF signal is then applied to the FM IF IC IC9 pin 16 5 1 4 2nd IF AND DEMODULATOR CIRCUITS MAIN UNIT The 1st IF signal is converted into the 2nd IF signal and demodulated The 1st IF signal from the 1st IF amplifier is applied to the 2nd mixer in the FM IF IC IC9 pin 16 and co...

Page 9: ...s 5 7 to remove unwanted components voice signals then applied to the CPU IC22 pin 45 and decoded 5 2 TRANSMITTER CIRCUITS 5 2 1 MICROPHONE AMPLIFIER CIRCUITS MAIN UNIT The AF signals from the microphone MIC signals are filtered and level adjusted at microphone amplifier circuits MIC SIGNALS MIC signals from the microphone are applied to or bypassed the ALC Automatic Level Control circuit IC24 pin...

Page 10: ...reference voltage The APC amplifier compares the detected voltage and reference voltage and the difference of the voltage APCV is output from pin 4 The voltage APCV controls the bias of the pre drive Q704 drive Q702 and power Q701 amplifiers to reduce increase the gain of these amplifiers for stable transmit output power The transmit power muting is carried out by the TX mute switch MAIN UNIT Q46 ...

Page 11: ...C202 C204 is applied to the PLL IC IC2 pin 8 The applied signal is divided at the prescaler and programmable counter according to the SSO signal from the CPU IC22 pin 99 The divided signal is phase compared with the reference frequency signal from the reference frequency oscillator X2 at the phase detector The phase difference is output from pin 5 as a pulse type signal after being passed through ...

Page 12: ...8 22 87 88 T5C R5C T5V LED backlight driver Q45 LCD driver IC20 D A converter IC12 etc CPU IC22 EEPROM IC10 Reset IC IC8 etc Drive amplifier Q702 Power amplifier Q701 etc PLL IC IC2 VCO s etc Transmit circuits Receive circuits R5V IC22 Battery pack 5 4 POWER SUPPLY CIRCUITS Voltage from the attached battery pack is routed to whole of the circuit in the transceiver via a switch and regulators ...

Page 13: ...Q40 High While DTCS is in use 75 NOIS Input port for noise signal from the FM IF IC IC9 pin 13 82 ESDA Outputs serial data to the EEPROM IC10 pin 5 85 ESCL Outputs clock signal to the EEPROM IC10 pin 6 Pin No Port Name Description 89 DIGI Outputs Analog Digital select signal to the A D switch D2 D3 High Digital mode is selected 91 LSO Outputs serial data to the LCD driver IC20 pin 48 92 LSCK Outpu...

Page 14: ...ADJUSTMENT Clone the adjustment frequencies and settings into the transceiver and set the configuration using the CS F3020 CLONING SOFTWARE before starting the software adjustment Otherwise the software adjustment can not be started CAUTION BACK UP the originally programmed memory data in the transceiver before programming the adjustment frequencies When program the ad justment frequencies into th...

Page 15: ...transmit while the SSG is connected to the antenna connector SINAD meter Speaker 8 To SP jack JIG cable 2 JIG cable 1 PC to USB port to RS 232C port OPC 478 RS 232C type OPC 478U USB type Audio generator AC millivoltmeter To MIC jack To MIC GND To SP CONNECTION JIG CABLES 3 conductor 3 5 d mm plug SP CLONE OPC 478 U GND SP JIG cable 2 JIG cable 2 conductor 2 5 d mm plug MIC GND 33 kΩ to the audio ...

Page 16: ... PLL lock voltage verify Squelch EUR only CTCSS DTCS deviation FM deviation Narrow FM deviation Middle Wide Modulation balance Transmit output power Hi Transmit output power L2 Transmit output power L1 Tq PLL lock voltage w e r t y u i 1 2 0 q w e r t y u i 4 5 6 o 3 o 0 1 2 3 4 5 Receive sensitivity Automatically 6 ...

Page 17: ...2 Channel Transmitting CH 1 CONVENIENT The PLL LOCK VOLTAGE can be adjusted automatically 1 Set the Lock voltage preset RX LVA and TX LVA to 179 3 15 V 2 Push the ENTER key on the connected PC s keyboard 3 Channel Receiving CH 2 PC screen Click Reload F5 button then check the LVIN item on the CS F3020 ADJ s screen 0 9 1 5 V Verify 4 Channel Transmitting CH 2 1 0 1 6 V Verify REFERENCE FREQUENCY RE...

Page 18: ...M deviation meter same as HPF LPF De emphasis Detector OFF 20 kHz OFF P P 2 Transmitting FM DEVIATION NARROW MOD N 1 Channel CH 5 Top panel Connect the FM deviation me ter to the antenna connector through an attenuator 2 05 to 2 15 kHz Connect an audio generator to the JIG cable and set as Frequency 1 0 kHz Level 150 mV rms Set the FM deviation meter to same condi tion as MODULATION BALANCE Transm...

Page 19: ...and push ENTER key 2 The connected PC tunes BPF s to peak levels automaticaly S METER RSSI 1 Channel CH 2 Push the ENTER key on the connected PC s keyboard to set S3 level Connect the SSG to the antenna connec tor and set as Frequency Level Modulation Deviation Receiving 136 000 MHz 23 dBµ 84 dBm 1 kHz 3 5 kHz 2 Set the SSG as Level Receiving 7 dBµ 114 dBm Push the ENTER key on the connected PC s ...

Page 20: ...200003550 S COL MLF1608A 4R7K T T 69 8 27 2 L28 6200003550 S COL MLF1608A 4R7K T T 69 8 29 8 L32 6200007911 S COL ELJRF 18NJFB T 88 2 35 8 L33 6200004480 S COL MLF1608D R82K T T 80 6 22 4 L34 6200007901 S COL ELJRF 22NJFB T 87 33 3 L35 6200003540 S COL MLF1608D R22K T T 84 6 25 4 L36 6200007901 S COL ELJRF 22NJFB T 86 1 33 3 L37 6200007720 S COL LQW2BHN33NJ03L B 68 6 33 8 L38 6200007760 S COL LQW2...

Page 21: ...00 S RES ERJ2GEJ 184 X 180 k B 7 19 3 R223 7030005720 S RES ERJ2GEJ 563 X 56 k B 7 20 3 R224 7030005220 S RES ERJ2GEJ 223 X 22 k B 7 21 3 R225 7030007260 S RES ERJ2GEJ 330 X 33 T 94 4 20 7 MAIN UNIT REF ORDER DESCRIPTION M H V NO NO LOCATION R226 7030005300 S RES ERJ2GEJ 150 X 15 T 94 5 16 R227 7030009140 S RES ERJ2GEJ 272 X 2 7 k T 97 4 22 5 R228 7030007300 S RES ERJ2GEJ 332 X 3 3 k T 95 5 22 5 R...

Page 22: ...0 S CER ECJ0EB1E102K B 58 4 35 3 C160 4030017460 S CER ECJ0EB1E102K T 72 3 13 7 S Surface mount MAIN UNIT REF ORDER DESCRIPTION M H V NO NO LOCATION C161 4030017620 S CER ECJ0EC1H100C T 78 6 28 C162 4030017500 S CER ECJ0EC1H560J T 82 4 23 3 C163 4030017570 S CER ECJ0EC1H040B T 84 4 23 3 C164 4030017590 S CER ECJ0EC1H070C T 83 4 23 3 C165 4030016790 S CER ECJ0EB1C103K T 82 4 25 2 C166 4030017360 S ...

Page 23: ...432 4030016930 S CER ECJ0EB1A104K B 60 2 28 7 C433 4030016930 S CER ECJ0EB1A104K B 27 3 12 4 C435 4030017910 S CER ECJ0EB1H152K T 71 20 7 C436 4030017910 S CER ECJ0EB1H152K T 71 22 5 C437 4030017640 S CER ECJ0EC1H150J B 87 6 38 8 C438 4030017660 S CER ECJ0EC1H330J B 88 1 27 4 C439 4030017460 S CER ECJ0EB1E102K B 89 4 27 4 C440 4030017460 S CER ECJ0EB1E102K T 67 2 5 4 C441 4030017460 S CER ECJ0EB1E...

Page 24: ...J0EC1H120J B 32 16 7 C752 4030017460 S CER ECJ0EB1E102K B 26 6 17 9 C753 4030017460 S CER ECJ0EB1E102K B 26 8 16 4 C754 4030017460 S CER ECJ0EB1E102K B 29 2 12 5 C755 4030017420 S CER ECJ0EC1H470J B 16 7 12 9 C756 4030017420 S CER ECJ0EC1H470J B 15 8 12 9 C757 4030017460 S CER ECJ0EB1E102K T 16 7 13 5 C758 4030017420 S CER ECJ0EC1H470J T 16 3 1 6 C759 4030017460 S CER ECJ0EB1E102K B 7 6 10 9 C760 ...

Page 25: ...33 6 21 3 R38 7030005671 S RES ERA3YKD 393V 39 k B 30 1 25 1 R39 7030000010 S RES MCR10EZHJ JPW B 28 1 42 2 R40 7030000010 S RES MCR10EZHJ JPW B 27 7 8 4 R41 7030000010 S RES MCR10EZHJ JPW B 34 6 9 2 R42 7030008240 S RES ERJ12YJ0R00U B 38 9 7 4 R43 7030000010 S RES MCR10EZHJ JPW B 30 1 33 3 R44 7030000010 S RES MCR10EZHJ JPW B 28 1 33 3 R45 7030000010 S RES MCR10EZHJ JPW B 29 1 38 R46 7030000010 S...

Page 26: ...6540 Push spring AH 2 MP35 8830001700 VR nut Q 1 MP36 8930048870 2056 A sponge 1 MP37 8930070010 2893 VOL rubber 1 ORDER NO REF NO DESCRIPTION QTY CHASSIS PARTS J2 6450002250 Connector HSJ1456 010320 1 J3 6450000131 Connector HSJ1102 018540 1 R315 7210003061 Variable resistor TP76N00N 15F A103 2251A 1 DS3 5030002760 LCD L3 0200HAY 3 1 MC1 7700002480 Microphone SKB 2746 LPC 1 S2 2260002840 Switch S...

Page 27: ...MP13 C MP14 C MP26 C MP27 C MP27 C MP9 C MP10 C J2 C J2 M J3 M MC1 M S2 M W1 C MP32 C UNIT abbreviations C CHASSIS PARTS M MAIN UNIT P PA UNIT CN CONNECT UNIT A ANT UNIT MP37 C MP21 C MP22 C MP34 C MP34 C MP36 C MP16 C MP24 C MP25 C J702 P MP9 M 120 4 23 32 3 7 9 64 15 4 39 64 53 2 3 32 17 8 45 64 32 5 1 9 32 38 9 1 17 32 1 7 1 16 5 2 13 64 1 7 1 16 2 4 3 32 167 6 37 64 Unit mm inch MP2 C MP12 C T...

Page 28: ...SK3019 2SK880 Y 3SK293 3SK324UG TL E RD01MUS1 RD07MVS1 UNR9111J UNR9113J UNR9210J UNR9213J XP1214 XP4601 XP6401 XP6501 AB Symbol HR Symbol BAR Symbol BR Symbol LL Symbol 24 Symbol MFO Symbol WB Symbol KN Symbol XY Symbol UF Symbol UG Symbol K2 Symbol RD07MVS1 Symbol 6A Symbol 6C Symbol 8L Symbol 8C Symbol 9H Symbol 5C Symbol 5O Symbol 5N A C A C A C A C A C C A1 A2 A C C A1 A2 1SV239 1SV307 DAN222...

Page 29: ...WITCH MIC 7 4 1 P0 P1 P2 P3 0 8 5 2 9 6 3 SECTION 10 BOARD LAYOUTS 10 1 BC 160 TOP VIEW ANT UNIT TOP VIEW CONNECT UNIT TOP VIEW PA UNIT TOP VIEW H5 H10 H15 H20 H25 H30 H35 H0 V5 V10 V15 V0 V25 V20 H5 H10 H15 H0 V5 V10 V0 2 1 J901 VCC VCC to PA unit GND VCC to Battery Connector J2 CHASSIS H5 H10 H0 V5 V10 V15 V0 TX GND ANT J1 CHASSIS to PA unit DC IN No patterns MAIN UNIT TOP VIEW ...

Page 30: ...WITCH EXT SPEAKER SIDE3 ISENS APC GND RX to PA unit J702 VCC T5V GND TX to PA unit J701 10 2 H5 H10 H15 H20 H25 H30 H35 H0 V5 V10 V15 V0 V25 V20 1 4 J701 TX GND T5V VCC to MAIN unit 4 1 J702 RX GND APC ISENS to MAIN unit TX GND VCC VCC to ANT unit to CONNECT unit J901 PA UNIT BOTTOM VIEW H5 H10 H15 H0 V5 V10 V0 H5 H10 H0 V5 V10 V15 V0 CONNECT UNIT BOTTOM VIEW ANT UNIT BOTTOM VIEW BC 160 BOTTOM VIE...

Page 31: ...15 BUFF IC6 LM2902PWR SW Q35 UNR9213J ALC IC24 AN6123MS MIC MUTE Q31 2SK3019 A D SW IC25 TC7W53FK AMP IC7 NJM12902V EEPROM IC10 HN58X2464TI IC23 M62334FP D A DAFO SW Q36 2SK3019 Q37 UNR9213J VCO SW Q18 XP1214 Q19 UNR9213J X2 Q14 2SC5700 D31 MA2S077 D32 MA2S077 GAIN SW Q34 2SK3019 A D SW W N SW Q9 DTA114EU D2 DAN235 D3 DAN235 LPF LIGT Q45 UNR9113J DS1 LNJ310M6URA DS2 LNJ310M6URA MONI SW S5 SW 167 E...

Page 32: ... 4 3 0 4 2 3 0 4 3 0 4 3 0 4 2 0 4 2 0 21 0 3 21 0 3 0 3 0 3 0 0 0 0 0 0 0 0 0 0 0 8 04 4 2 K 2 P P P 2 P K 2 2 K K 2 0 3 0 M N 2 K P 07 2 2 K P P 2 P 2 K 2 K 2 K 2 K 2 K 2 K 2 2 K 2 K 2 K 2 2 K P P P 2 K P P K 2 P P P P P U 54 6 633 2 K 2 3 3 54 60 6 K 4 54 0 2 K 7 2 K K 2 2 K 07 2 2 K 6 K 2 6 54 6 2 K 2 07 P 2 K 2 K 2 2 K 2 K 2 K 2 K 2 K 2 K 2 K 2 2 K 2 K 2 K N N P P 2 K 2 2 K N P P 2 K M 2 K P ...

Page 33: ...001 Q706 2SC4081 Q705 XP6401 D701 1SV307 IC701 TA75S01F 1 2 3 4 5 J701 1 2 3 4 R702 330 R701 330 C729 15p C756 47p R744 120k C710 0 001 R716 10k R742 1 2k C760 0 001 L707 47nH L706 EXCCL3225U R745 220k APC 0467003 NR F701 HV 1 2 L701 4 7µH Q702 RD01MUS1 C720 82p C706 22p C769 0 3p C746 24p C744 15p C708 68p C704 18p C768 0 3p C745 1 5p C711 56p C705 18p Q701 RD07MVS1 APCV APCV TX GND VCC T5V T5V T...

Page 34: ...0543 TE1 1 VO 2 GND 3 CD 4 VOR 5 VIN R50 ERJ12 JPW L2 0 47µ ERJ12 JPW CP2 CP1 C20 560 0 01 0 0015 RSQ035P03TR Q2 1 2 3 4 5 6 R47 MCR10 JPW MCR10 JPW R39 MCR10 JPW R40 R51 MCR10 JPW R41 MCR10 JPW R43 MCR10 JPW R55 MCR10 JPW R52 MCR10 JPW R44 MCR10 JPW R45 MCR10 JPW R49 MCR10 JPW R46 MCR10 JPW R54 MCR10 JPW R56 MCR10 JPW R57 R20 33k R58 MCR10 JPW R59 MCR10 JPW R60 R62 MCR10 JPW R63 MCR10 JPW MCR10 J...

Page 35: ...enwood Centre 150 6165 Highway 17 Delta B C V4K 5B8 Canada Phone 1 604 952 4266 Fax 1 604 952 0090 URL http www icomcanada com E mail info icomcanada com Unit 1 103 Garden Road Clayton VIC 3168 Australia Phone 61 03 9549 7500 Fax 61 03 9549 7505 URL http www icom net au E mail sales icom net au 146A Harris Road East Tamaki Auckland New Zealand Phone 64 09 274 4062 Fax 64 09 274 4708 URL http www i...

Page 36: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14303HZ C1 2006 Icom Inc ...

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