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SERVICE

MANUAL

UHF TRANSCEIVER

iF610

iF620

iF621

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Summary of Contents for IC-F610

Page 1: ...SERVICE MANUAL UHF TRANSCEIVER iF610 iF620 iF621...

Page 2: ...pment model name and unit name 4 Quantity required SAMPLE ORDER 1110003490 S IC TA31136FN IC F610 MAIN UNIT 5 pieces 8810009990 Screw PH BT M3 8 ZK IC F620 Bottom cover 10 pieces Addresses are provide...

Page 3: ...RTS LIST SECTION 7 MECHANICAL PARTS SECTION 8 SEMI CONDUCTOR INFORMATION SECTION 9 BOARD LAYOUTS 9 1 FRONT UNIT 9 1 9 2 MAIN UNIT 9 3 SECTION 10 BLOCK DIAGRAM SECTION 11 VOLTAGE DIAGRAMS 11 1 FRONT UN...

Page 4: ...tarve range from 300 Hz to 2550 Hz Narrow 3000Hz Middle Wide Audio harmonic distortion 3 typical at 1 kHz 40 deviation FM hum and noise typical without CCITT filter 34 dB min 40 dB typical Narrow 40 d...

Page 5: ...egurator IC10 AN78L05M VCO circuit CPU IC20 HD64F2268TF Antenna switch Low pass filter circuits 1st mixer Q3 3SK272 2nd IF filter FI2 ALFYM450F K FM IF IC IC1 TA31136FN D A converter IC6 M62364FP Refe...

Page 6: ...from the antenna connector Remove the clip F Disconnect the cable G from J5 Unscrew 11 screws H H H H G F D E J5 Lift up the front part of the main unit and remove it Optional unit and cable instllat...

Page 7: ...r circuit converts the received signals to a fixed frequency of the 1st IF signal with the PLL output frequency By changing the PLL frequency only the desired frequency will pass through a MCF Monolit...

Page 8: ...IF IC IC1 pin 9 are passed through the D A converter IC6 pins 23 24 The signals are applied to the active filter section in the FM IF IC IC1 pin 8 The active filter section filters and amplifies nois...

Page 9: ...ixer IC21 pins 1 2 The signals are mixed with the AF signals from the FM PM switch IC15 pin 1 and are then applied to the VCO circuit via the splatter filter IC21 pins 12 14 4 2 3 DRIVE AMPLIFIER CIRC...

Page 10: ...t mixer Q3 and the transmit Tx signal to the YGR amplifier circuit Q9 A portion of the signal from the buffer amplifier Q11 is fed back to the PLL IC IC4 pin 5 via the buffer amplifier Q12 and low pas...

Page 11: ...high pass filter sections and are then applied to the limiter amplifier section after being passed through the high pass filter section The filtered signals pass through the splatter filter section a...

Page 12: ...l unit via J1 32 RMUT Input port for the AF mute signal from the optional unit via J1 Low While RX audio is muted Pin number Port name Description 33 MMUT Input port for the microphone mute signal fro...

Page 13: ...data signals from the connected unit via external connector J8 88 DIM Input port for the LCD backlight con trol signal from the external connector J6 Low While LCD backlight is dimmed 89 91 CENC1 CEN...

Page 14: ...ick Next t The Choose Destination Location will appear Then click Next to install the software to the destination folder y After the installation is completed the InstallShield Wiz ard Complete will a...

Page 15: ...REF 45 2Dh 0 88 V MOD BAL 54 36h 21 18 Dev 157 9Dh 3 08 V CTCSS 66 42h 1 29 V SQL Lev 0 00h 0 00 CH No 01 RX Freq 440 050 TX Freq RF Power High Mode Wide Transceiver s connection state Reload adjustm...

Page 16: ...EF 45 2Dh 0 88 V MOD BAL 54 36h 21 18 Dev 157 9Dh 3 08 V CTCSS 66 42h 1 29 V SQL Lev 0 00h 0 00 CH No 01 RX Freq 440 050 TX Freq RF Power High Mode Wide Transceiver s connection state Reload adjustmen...

Page 17: ...annel select RF output power Modulation balance 5 6 7 8 11 12 FM deviation CTCSS DTCS deviation Squelch level Receive sensitivity automatically 13 Receive sensitivity manually Reference frequency S me...

Page 18: ...ator 127 to 17 dBm 0 1 V to 32 mV CAUTION DO NOT transmit while SSG is connected to the antenna connector RF power meter 50 1 75 W DC power supply 13 6 13 2 V 20 A Frequency counter RS 232C cable stra...

Page 19: ...N C o n n e c t a d i g i t a l multimeter or an oscil loscope to the check point LV 1 0 V MAIN C133 2 Transmitting 1 1 V C134 3 Operating CH Receiving CH7 3 0 4 4 V L 3 3 4 5 V M 3 3 4 5 V H Verify 4...

Page 20: ...MIC connec tor Set an FM deviation meter as HPF LPF De emphasis Detector OFF 20 kHz OFF P P 2 Push P0 while transmitting FM DEVIATION MOD W 1 Operating CH CH4 Rear panel Connect an FM deviation me te...

Page 21: ...an SSG to the antenna connector and set as Frequency Level Modulation Deviation Receiving 400 000 MHz L 440 000 MHz M 480 000 MHz H 14 V 84 dBm 1 kHz 3 5 kHz W N 2 8 kHz M N 2 Set an SSG as Level Dev...

Page 22: ...C1608 CH 1H 470J T B 122 6 25 6 C27 4030007090 S CER C1608 CH 1H 470J T B 122 6 30 4 C28 4030007090 S CER C1608 CH 1H 470J T B 122 6 15 6 C29 4030007090 S CER C1608 CH 1H 470J T B 110 6 2 8 C30 403001...

Page 23: ...0005680 S COL ELJRE 15NG F M H B 46 5 59 9 6200005690 S COL ELJRE 18NG F L B 46 5 59 9 L20 6200005700 S COL ELJRE 22NG F M H B 51 8 60 1 6200005710 S COL ELJRE 27NG F L B 51 8 60 1 L21 6200005700 S CO...

Page 24: ...04JV 100 k T 37 16 1 R153 7030003680 S RES ERJ3GEYJ 104 V 100 k T 49 3 29 1 R154 7410000750 S ARY EXB V4V 104JV 100 k B 23 1 41 1 R155 7410000750 S ARY EXB V4V 104JV 100 k B 23 4 46 2 R156 7030003520...

Page 25: ...08 CH 1H 2R5B T B 97 3 62 1 C26 4030006990 S CER C1608 CH 1H 080D T L B 93 1 56 1 4030007010 S CER C1608 CH 1H 100D T M H B 93 1 56 1 C27 4030006860 S CER C1608 JB 1H 102K T B 90 7 58 8 C28 4030006860...

Page 26: ...ER C1608 CH 1H 470J T B 48 3 16 6 C205 4030007090 S CER C1608 CH 1H 470J T B 40 8 14 C206 4030007090 S CER C1608 CH 1H 470J T B 46 14 C207 4030011600 S CER C1608 JB 1E 104K T B 46 2 45 9 C209 40300070...

Page 27: ...0B T B 60 3 49 8 C366 4030011600 S CER C1608 JB 1E 104K T B 104 4 44 C367 4030007090 S CER C1608 CH 1H 470J T B 109 2 40 7 C368 4550002890 S TAN TEESVA 1A 225M8L T 46 69 5 C369 4030007090 S CER C1608...

Page 28: ...19 8930046771 Thermally sheet G 1 45W only 1 MP20 8930058610 Insulate plate HD 1 J1 6510004880 Connector MR DS E 01 1 SP1 2510001030 Speaker VS 57 0837A 1 WS1 8600036860 Cable FX2527 P01CH 1 MP1 80100...

Page 29: ...1 C MP5 M W1 F MP2 M MP3 M MP11 C MP6 M MP13 C MP9 C WS1 C MP8 M W2 M J4 M MP14 M MP20 M MP1 M MAIN UNIT MP4 M MP13 M MP11 C J1 C MP7 C SP1 C MP8 C MP11 C Unit abbreviations F FRONT UNIT M MAIN UNIT C...

Page 30: ...144 GR 2SJ377 2SK880 Y 2SK1829 3SK272 3SK293 DTA144EUA T106 DTC144EUA T106 DTC363 EK XP1214 XP6501 AB Symbol BAR Symbol R24 Symbol LL Symbol AB Symbol QO Symbol R25 Symbol MFO Symbol DAQ Symbol VG Sym...

Page 31: ...RONT UNIT TOP VIEW 9 1 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 0 Horizonal 5 10 15 0 25 30 20 Vertical 8V 2 8 to Microphone 1 7 J1 AFO MICE GND CLO PTT MIC...

Page 32: ...5 80 85 90 95 100 105 110 115 120 125 130 0 Horizonal 5 10 15 0 25 30 20 Vertical 1 16 48 33 32 17 49 64 1 to MAIN unit J2 19 2 20 J2 GND PWR LINH LCS LCK LSO AFVI CLI GND MIC 8V 5V KR0 KR1 KR2 FSW HO...

Page 33: ...SO AFVI CLI GND MIC 8V 5V KR0 KR1 KR2 FSW HORN CLO PTT AFO GND 30 16 1 15 J1 5V VCC MMUT AFON BEPO RMUT DET DISC REM CCS CIRQ SO SI SCK PTTI PTTO MCOT MCIN AUX BUSY MDWN SIG OPT1 OPT2 OPT3 GND OPV3 OP...

Page 34: ...0 65 70 75 80 85 90 95 100 105 110 115 120 125 0 Horizonal 5 10 15 0 25 30 35 20 45 50 55 40 65 70 75 60 80 90 95 100 85 105 Vertical 1 4 8 1 7 14 8 5 12 11 1 1 7 14 8 23 33 22 44 34 1 25 26 50 51 75...

Page 35: ...TC144EU J6 PAAF C PTTO J1 PTTI J1 DS12 LCD MICI AF AMP SW D31 DAN222 DTC144EU Q50 SW DTC144EU Q49 PA SW NJM12902V IC21 M62334FP IC7 TONE CTCS SIG TC4W53FU IC15 PM FM AMP D A A DER EXPAN Q21 DEMOD MSK...

Page 36: ...4 SEG30 33 SEG29 32 SEG28 31 SEG27 30 SEG26 29 SEG25 28 SEG24 27 SEG23 26 SEG22 25 SEG21 24 SEG20 23 SEG19 22 SEG18 21 SEG17 20 SEG16 19 SEG15 18 SEG14 17 SEG13 16 SEG12 15 SEG11 14 SEG10 13 SEG9 12 S...

Page 37: ...R8 220 L5 LW 25 C12 470p C375 0 001 C13 47p D2 UM9401F 25W D3 XB15A407 45W L4 15n C15 8p T8V C365 5p R69 4 7k D15 MA77 R50 10k R235 1k C303 0 001 C302 3p EUR M 10p Other R8V ANT C304 10p Q34 2SC4116 R...

Page 38: ...C377 0 1 R321 68k C399 0 1 Q41 DTA144EU PA R280 10 X4 CR 520 C341 12p C342 22p R277 12k C339 27p R278 12k D27 MA77 C340 0 01 1 2 3 4 5 6 7 8 AO1 AO2 AO3 AO4 GND SDA SCL VCC IC7 M62334FP VAG R302 10k...

Page 39: ...a Inc Glenwood 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 Icom Canada A B N 88 006 092 575 290 2...

Page 40: ...S 13817HZ C1U w C 2002 2005 Icom Inc...

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