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UHF FM TRANSCEIVER

iF2610

SERVICE

MANUAL

Summary of Contents for IC-F2610

Page 1: ...UHF FM TRANSCEIVER iF2610 SERVICE MANUAL...

Page 2: ...n the transceiver until the transceiver is disconnected from its power source 3 DO NOT force any of the variable components Turn them slowly and smoothly 4 DO NOT short any circuits or electronic part...

Page 3: ...5 1 5 2 INITIAL SET MODE 5 2 5 3 PLL ADJUSTMENT 5 3 5 4 RECEIVER ADJUSTMENT 5 4 5 5 TRANSMITTER ADJUSTMENT 5 5 SECTION 6 PARTS LIST SECTION 7 MECHANICAL PARTS AND DISASSEMBLY SECTION 8 SEMI CONDUCTOR...

Page 4: ...00 086 400 430 MHz L band 440 490 MHz M band 490 520 MHz H band 128 16 ch 8 banks 16K0F3E 25 kHz Wide 8K50F3E 12 5 kHz Narrow 20 C to 55 C 13 2 V DC negative ground 8 0 A 25 W 6 5 A 10 W 1 2 A 700 mA...

Page 5: ...CR 573A PLL IC IC12 MC145190F D A converter IC5 M62363FP 650C FRONT unit CPU IC20 HD64F3437F BIIS only HD64F3437F16 OTHER EEPROM IC27 CAT25C64SI Low pass filter circuit 1st mixer Q2 3SK166 RF amplifie...

Page 6: ...NIT Rolling type EX 1761 MEMORY EXPANSION UNIT OPC 617 J501 J4 J6 J7 OPC 821 OPC 822 UT 96 UT 103 UT 105 UT 109 UT 110 EX 1761 PIN ASSIGNMENT 1 5 6 9 Pin No Terminal name Description Specification 1 D...

Page 7: ...ket bolts from the front plate using an allen wrench 1 32 in Separate the front unit from the transceiver main unit Remove 4 screws from the RMK 1 front unit attachment to open the rear plate Connect...

Page 8: ...r circuit Q2 to produce a 30 875 MHz 1st IF signal The 1st IF signal is passed through the matching circuit L14 L15 and a pair of crystal filters FI1a b in order to obtain selection capability and to...

Page 9: ...signal from the noise detector Q10 is applied to the CPU IC20 pin 32 The CPU then analyzes the noise condition and controls the AMUT pin 56 and SP pin 79 ports to toggle the AF mute switches Q6 Q7 CTC...

Page 10: ...evel The signal from the buffer amplifier Q20 passes through the T R switch D17 and is amplified at the drive amplifiers Q17 Q15 and power module IC11 to obtain 10 W or 25 W depending on versions of R...

Page 11: ...ft register Prescaler Phase detector Loop filter Programmable counter Programmable divider Buffer Buffer Buffer Q20 Q18 Q19 17 18 19 PSTB IC12 PLL IC PCK PDA to transmitter circuit to 1st mixer circui...

Page 12: ...o the IC1 s amplifier function pin 8 The amplified signal is output from pin 9 and is then applied to the IC22 pin 4 IC F1610 s MAIN unit as SIG OUT signal The signal is amplified at the buffer amplif...

Page 13: ...lected Outputs high pass filter s characteris tics select signal High During CTCSS operation Outputs mic audio select signal to the audio switch IC25 High While Public address func tion is ON Outputs...

Page 14: ...or more Measuring range 1 50 W Frequency range 300 600 MHz Impedance 50 SWR Less than 1 2 1 Frequency range 0 1 600 MHz Frequency accuracy 1 ppm or better Sensitivity 100 mV or better Frequency range...

Page 15: ...rol Beep ON OFF Maximum beep level DTCS balance CTCSS DTCS Tone deviation Maximum voice deviation S meter level Transmit low power L1 Transmit low power L2 Transmit high power H MODE No NOTE 2 beeps l...

Page 16: ...80 000 MHz H Transmitting Operating freq 430 000 MHz L 490 000 MHz M 520 000 MHz H Transmitting Operating freq 390 000 MHz L 440 000 MHz M 480 000 MHz H Transmitting MAIN Rear panel Connect a digital...

Page 17: ...ating freq 400 000 MHz L 440 000 MHz M 490 000 MHz H Enter Initial Set Mode No 2 Refer to page 5 2 for details Make sure no signal is being applied to the antenna connector Receiving Connect an SSG to...

Page 18: ...0 MHz M 505 000 MHz H Enter Initial Set Mode No 4 Refer to page 5 2 for details No AF signals are applied to the micro phone connector Set an FM deviation meter as HPF OFF LPF 20 kHz De emphasis OFF D...

Page 19: ...3GEYJ 104 V 100 k B R46 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 k B R47 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 k B R48 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 k B R49 7030003600 S RESISTOR ERJ3GEYJ 223...

Page 20: ...30 1590002290 S TRANSISTOR FMS2A T148 T Q31 1590002300 S TRANSISTOR FMW2 T148 T Q32 1530002060 S TRANSISTOR 2SC4081 T106 R T Q33 1510000510 S TRANSISTOR 2SA1576A T106R T Q35 1530002060 S TRANSISTOR 2S...

Page 21: ...6200002710 S COIL ELJFC 1R8K F B L42 6200004230 S COIL ELJNC R56K F B L43 6200004110 S COIL MC152 E558ANA 100050 T L44 6200004230 S COIL ELJNC R56K F B L45 6200002860 S COIL NL 252018T 4R7J T L46 620...

Page 22: ...3GEYJ 103 V 10 k H B 7030003600 S RESISTOR ERJ3GEYJ 223 V 22 k M B 7030003640 S RESISTOR ERJ3GEYJ 473 V 47 k L B R151 7030003760 S RESISTOR ERJ3GEYJ 474 V 470 k L H B 7030003770 S RESISTOR ERJ3GEYJ 56...

Page 23: ...030003370 S RESISTOR ERJ3GEYJ 271 V 270 E B 7030003410 S RESISTOR ERJ3GEYJ 561 V 560 D B 7030003430 S RESISTOR ERJ3GEYJ 821 V 820 Other B R386 7030000180 S RESISTOR MCR10EZHJ 22 220 M B 7030000190 S R...

Page 24: ...0 S RESISTOR ERJ3GEYJ 220 V 22 B only T C2 4030011050 S CERAMIC GRM31M3C2H3R0CY21L GRM42 6 CJ C B 4030011060 S CERAMIC GRM31M2C2H4R0CY21L GRM42 6 CH Other B 4030011080 S CERAMIC GRM31M2C2H6R0DV01L GRM...

Page 25: ...120 4030006860 S CERAMIC C1608 JB 1H 102K T T C121 4030006860 S CERAMIC C1608 JB 1H 102K T T C122 4030006860 S CERAMIC C1608 JB 1H 102K T T C123 4030007090 S CERAMIC C1608 CH 1H 470J T T C124 45100057...

Page 26: ...B C287 4030007090 S CERAMIC C1608 CH 1H 470J T B C288 4030006860 S CERAMIC C1608 JB 1H 102K T B C289 4030006860 S CERAMIC C1608 JB 1H 102K T B C290 4030006860 S CERAMIC C1608 JB 1H 102K T B C291 40300...

Page 27: ...C1608 CH 1H 470J T B C527 4030011600 S CERAMIC C1608 JB 1E 104K T B C528 4030007090 S CERAMIC C1608 CH 1H 470J T B C529 4030007090 S CERAMIC C1608 CH 1H 470J T B C530 4030007090 S CERAMIC C1608 CH 1H...

Page 28: ...CONNECTOR 52365 0691 T J501 6510021300 S CONNECTOR 52365 1091 T W3 7030003860 S RESISTOR ERJ3GE JPW V B W4 8900004540 CABLE OPC 453 T W6 7120000470 JUMPER ERDS2T0 T W11 7030003860 S RESISTOR ERJ3GE JP...

Page 29: ...O DESCRIPTION QTY J2 6450000140 Connector HSJ0807 01 010 1 J5 6510018040 Connector 52330 1217 1 W4 8900004540 Cable OPC 453 1 MP1 8510006810 DC DC case 1 MP2 8510009980 1705 VCO case 1 MP4 8510010080...

Page 30: ...6 C MP3 C J2 M MP15 C MP13 M MP2 M MP4 M MAIN Top side MP6 M MP18 M J5 M MP2 C MP9 M MP12 M MP16 M MP17 M MP2 C MP14 M MP1 M MP8 M MP15 M W4 M MP8 C MP5 C MP5 C MAIN UNIT Bottom side FRONT UNIT MP1 C...

Page 31: ...ymbol BR Symbol LL Symbol R25 Symbol SE Symbol MFO Symbol MGO Symbol DAQ Symbol 4L Symbol FJ Symbol K1 Symbol TG Symbol XG Symbol K Symbol U78 Symbol 14 Symbol 113 Symbol 16 Symbol 24 Symbol 64 Symbol...

Page 32: ...SECTION 9 BOARD LAYOUTS 9 1 FRONT UNIT TOP VIEW 1 2 3 4 5 6 7 P4 MP2 P3 P2 P1 P0 8 9 0 8V 2 8 1 7 to Microphone J1 AFO MICE GND CLON PTT MIC HANG 9 1...

Page 33: ...1 48 33 32 17 49 64 1 16 4 8 5 1 128 103 39 64 38 102 65 VCC 1 to MAIN unit J5 12 J2 SQL SP SPE 8V FTXO FRXO POSW MICE MIC GND AFO MP10 MP11 9 2 BOTTOM VIEW FRONT UNIT...

Page 34: ...ptional cable OPC 617 PTT GND IN GND DISC GND PAAF GND HORN DIM VCC J4 11 1 J7 ESI ECS2 CPU5V ECK 5 1 6 2 ESO GND to optional unit EX 1761 EEPROM PTT IN PTT OUT MIC OUT MIC IN AUX BUSY NC SIG OUT OPT1...

Page 35: ...1 1 4 1 5 8 5 10 6 8 16 9 1 1 1 4 8 5 4 8 5 7 11 20 10 1 14 8 1 20 11 1 10 4 8 5 MP7 MP11 MP10 SP MP19 MP13 MP13 9 4 BOTTOM VIEW MAIN UNIT EUR 01 02 12 13 71 72 ONLY...

Page 36: ...tional cable OPC 617 PTT GND IN GND DISC GND PAAF GND HORN DIM VCC J4 11 1 J7 ESI ECS2 CPU5V ECK 5 1 6 2 ESO GND to optional unit EX 1761 EEPROM PTT IN PTT OUT MIC OUT MIC IN AUX BUSY NC SIG OUT OPT1...

Page 37: ...1 1 4 1 5 8 5 10 6 8 16 9 1 1 1 4 8 5 4 8 5 7 11 20 10 1 14 8 1 20 11 1 MP13 10 4 8 5 MP7 MP11 MP10 SP MP13 9 6 BOTTOM VIEW MAIN UNIT OTHER...

Page 38: ...144EU Q26 DTA114EU IC13 TC4W66FU Q30 FMS2A Q31 FMW2 Q32 Q33 Q505 DTC144EU X501 R8V T8V HV VCC CPU5V VRX TMUT PWON 8V MT8V 5V CTRL 5V IC16 TA7808F Q36 2SD1664 Q37 2SC4116 D27 DA204U Q38 2SD1664 Q39 DTC...

Page 39: ...1 2M R2 RV 158 R3 1M C10 0 22 R4 1k R5 100k R7 10k R8 220k 1 2 3 4 5 IC3 S 80842CLMC B63 T2 D1 MA111 R6 470k R9 220k Q1 2SC4081 C11 0 01 R10 100k R17 100k Q3 DTC114EU 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V...

Page 40: ...D AFO IC22 PC5023GR043 GJG 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 IN1 OUT1 IN2 OUT2A OUT2B REF GND VCC TONE1 TONE2 TONEOUT IN5 IN3 OUT3 IN4 OUT4 C515 0 1 C516 10 R193 22k C201 0 1 R195 240k Q35 2SC408...

Page 41: ...4p C141 3p L 4p O D17 MA77 R117 1 5k C138 6p H 4p O C135 470p C137 0 001 R115 3 3k R113 22 H 4 7 O L27 27n 22n 15n C469 220p C132 4p H 3p O R116 56 H 100 O C134 0 001 Q16 2SC3356 C424 6p H 7p O L65 15...

Page 42: ...70 C587 47p C606 22p R C93 220 IC8 LA4425A R86 22k C369 0 001 C92 0 1 C91 0 0022 D50 1SS355 SP Q7 DTC363EK AFO C330 0 1 R349 10k BEEP R81 10k C86 0 1 C413 0 0047 IC7 M5282FP VCC2 IN IN OUT GND VCC VCA...

Page 43: ...SK166 C28 0 001 R14 4 7k C573 47p C625 22p R C576 2p H C23 4p H 2p O C328 47p TUNE R609 47k R608 27k L 39k H 33k M R 47k O C430 470p C429 47p C325 0 001 C331 470p W509 C428 470p R11 150k D8 HVU350B C2...

Page 44: ...tes Decoding signal Encoding signal J1 1 2 3 4 5 6 7 8 9 SIG OUT SIG OUT DISC IN DISC IN 5V GND OPT1 SCK SI SO GND CIRQ CCS 10 11 12 13 14 15 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 to IC F2610 M...

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Page 46: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14005HZ C1U C 1999 2003 Icom Inc...

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