SERVICE MANUAL VHF FM TRANSCEIVERS S-14303HZ-C1 July 2006
INTRODUCTION This service manual describes the latest service information for the IC-F3021T/S, IC-F3022T/S and IC-F3023T/S VHF FM TRANSCEIVERS at the time of publication. MODEL Key Pad VERSION SYMBOL IC-F3021T IC-F3021S 10-key 4-key IC-F3022T 10-key IC-F3022S 4-key IC-F3023T IC-F3023S 10-key 4-key Channel Spacing 15.0 kHz / 30.0 kHz U.S.A [USA-02] Europe [EUR-02] 12.5 kHz / 20.0 kHz / 25.0 kHz General [GEN-02] 12.5 kHz / 25.
TABLE OF CONTENTS SECTION 1 SPECIFICATIONS SECTION 2 INSIDE VIEWS SECTION 3 DISASSEMBLY INSTRUCTIONS SECTION 4 OPTIONAL UNIT INSTALLATION SECTION 5 CIRCUIT DESCRIPITON SECTION 5-1 RECEIVER CIRCUITS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 5-2 TRANSMITTER CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 5-3 PLL CIRCUITS . . . . . . . . . . . . . .
SECTION 1 SPECIFICATIONS [USA], [GEN] [EUR] • Frequency coverage 136–174 MHz • Type of emission Wide 16K0F3E (25.0 kHz) Middle – 14K0F3E (20.0 kHz) Narrow 11K0F3E (12.5 kHz) GENERAL • Number of programable channels 50 Ω (nominal) • Antenna impedance • Operating temperature range −22˚F to +140˚F • Power supply requirement • Current drain (approx.) 8K50F3E (12.5 kHz) 128 channels (8 zones) RX TX –25˚C to +55˚C Specified Icom’s battery packs only (Operatable voltage; 7.
SECTION 2 INSIDE VIEWS MAIN UNIT TOP VIEW BOTTOM VIEW +5 regulator Q26: 2SB1132 Q27: XP6501 Q28: UNR9213J ( AF amplifier (IC15: TA7368FG) CPU5 regulator (IC17: NJM2870) 1st mixer (Q6: 3SK324) IF amplifier (Q7: 2SC5107) PLL IC (IC2: MB15A02PFV1) TX VCO Q16: 2SC5006 D10, D13, D34: HVC375B R5 regulator (Q25: 2SA1577) IF IC (IC9: TA31136FNG) ) RX VCO Q17: 2SC5006 D9, D11, D33: HVC375B ) ( Ceramic filter 450 KHz (FI2: CFWM450F) LCD driver (IC20: LC75834W) ( ) VCO circuits S5 regulator (Q23:
SECTION 3 DISASSEMBLY INSTRUCTIONS 1 REMOVING THE CHASSIS UNIT q Unscrew ANT nut A, and remove knob 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 r t y Unscrew 6 screws J. Remove the side plate I. Unsolder 8 points K, and remove the shield cover. Unsolder 8 points L, and take off the MAIN UNIT in the direction of the arrow.
SECTION 4 OPTIONAL UNIT INSTALLATION CAUTION! Optional unit installation should be done at authorized Icom servise center only. Install the optional unit as follows. r Install the unit as below. q Rotate [VOL] to turn the power OFF, and remove the battery pack. w Remove the unit cover as below. (The removed unit cover can not be used again.
SECTION 5 CIRCUIT DESCRIPTION 5-1 RECEIVER CIRCUITS The antenna switching circuit toggles the receive (RX) line and transmit (TX) line. The converted 1st IF signal is passed 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).
The AF signals from the analog switch (IC3, pin 11) are applied to the volume buffer amplifier (IC6, pin 9). The bufferamplified AF signals are adjusted its level (= audio level) by volume control pot (R315), then applied to the AF power amplifier (IC15, pin 4) and amplified to the 0.5 W of audio output power (max., at 8 Ω load). The power-amplified AF signals are output from pin 10, then applied to the internal speaker (CHASSIS; SP1) or an external speaker via [SP] jack (J2).
5-2-3 TRANSMIT AMPLIFIERS (PA UNIT) 5-2-4 APC CIRCUIT (PA UNIT) The transmit signal from the VCO is amplified to the transmit output level by the transmit amplifiers. The APC (Automatic Power Control) circuit prevents the transition of the transmit output power level which is caused by load mismatching or heat effect, etc.
5-3-2 PLL IC (MAIN UNIT) 5-3 PLL CIRCUITS 5-3-1 VOLTAGE CONTROLLED OSCILLATORS (VCOs; MAIN UNIT) VCO is an oscillator whose oscillating frequency is controlled by adding voltage (lock voltage). This transceiver has 2 VCOs RX VCO (Q17, D9, D11, D33) and TX VCO (Q16, D10, D13, D34). The RX VCO oscillates the 1st LO signals, and the TX VCO oscillates the transmit signal.
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. Power switch VCC Drive amplifier (Q702), Power amplifier (Q701), etc. F701 (PA unit ) IC17 CPU (IC22), EEPROM (IC10), Reset IC (IC8), etc. CPU5 LED backlight driver (Q45), LCD driver (IC20), D/A converter (IC12), etc. +5V CPU5V regurator +5V regurator R315 Battery pack “PWON” Q26–Q28 PLL IC (IC2), VCO’s, etc.
5-5 PORT ALLOCATIONS Pin No. 5-5-1 CPU (IC22) Pin No. 9 10 Port Name KR1− KR3 KS0− KS4 BUSY CCS 11 SCK 1−3 4−8 Description Input ports for dealer-programmable keys. DSDA 43 SENC 44 45 46 48 49 50 59 69 70 71 72 75 82 85 91 92 Output ports for dealer-programmable keys. 93 Outputs “BUSY” signal to the DSP UNIT. Outputs chip-select signal to the DSP UNIT. Outputs serial clock signal to the PLL IC (IC2, pin 9) and D/A converter (IC12, pin 7/IC23, pin 7).
SECTION 6 ADJUSTMENT PROCEDURES 6-1 PREPARATION When adjusting IC-F3020 series, CS-F3020 CLONING SOFTWARE, CS-F3020 ADJ ADJUSTMENT SOFTWARE (Rev. 1.0 or later), OPC-478/U JIG CABLE (modified OPC-478/U CLONING CABLE; see the page 6-2) and the following test equipments are required. EQUIPMENT GRADE AND RANGE EQUIPMENT GRADE AND RANGE DC power supply Output voltage Current capacity : 7.2 V DC : More than 1.
• CONNECTION Attenuator 10 dB or 20 dB Standard signal generator 0.1 µV to 32 mV (–127 dBm to –17 dBm) FM deviation meter Osciiloscope to the antenna connector RF power meter 0.
• PC SCREEN EXSAMPLE !6 !5 Tq w e r t y u i o !0 !1 !2 !3 !4 q Transmit output power (Hi) w Transmit output power (L2) o Reference frequency !0 Receive sensitivity (Automatically) e Transmit output power (L1) r Modulation balance !1 Receive sensitivity (Manually) t FM deviation (Narrow) !3 PLL lock voltage preset y FM deviation (Middle*/Wide) u CTCSS/DTCS deviation !4 S-meter !5 PLL lock voltage (verify) i Squelch !6 Reload data !2 PLL lock voltage *; [EUR] only 6-3
6-2 FREQUENCY ADJUSTMENT Select an adjustment item using [↑] / [↓] keys, then set to the specified value using [←] / [→] keys on the connected PC’s keyboard. ADJUSTMENT ADJUSTMENT CONDITION PLL LOCK VOLTAGE [RX LVA] 1 • Channel • Receiving : CH 1 [TX LVA] 2 • Channel • Transmitting : CH 1 MEASUREMENT UNIT OPERATION PC Click [Reload (F5)] button, then screen check the “LVIN” item on the CS-F3020 ADJ’s screen as below. VALUE 3.5 V CONVENIENT: The “PLL LOCK VOLTAGE” can be adjusted automatically.
6-3 TRANSMIT ADJUSTMENT Select an adjustment item using [↑] / [↓] keys, then set to the specified value using [←] / [→] keys on the connected PC’s keyboard. ADJUSTMENT ADJUSTMENT CONDITION MEASUREMENT UNIT OPERATION OUTPUT POWER [Power (Hi)] 1 • Channel • Transmitting : CH 3 [Power (L2)] 2 • Channel • Transmitting : CH 4 2.0 W [Power (L1)] 3 • Channel • Transmitting : CH 5 1.0 W MODULATION 1 • Channel : CH 6 • No audio applied to the JIG cable.
6-4 RECEIVE ADJUSTMENT Select an adjustment item using [↑] / [↓] keys, then set to the specified value using [←] / [→] keys on the connected PC’s keyboard. ADJUSTMENT ADJUSTMENT CONDITION MEASUREMENT UNIT LOCATION VALUE RECEIVE NOTE: “RECEIVE SENSITIVITY” must be adjusted before “S-METER.” Otherwise, “S-METER” will not be SENSITIVITY adjusted properly.
SECTION 7 PARTS LIST [MAIN UNIT] [MAIN UNIT] REF NO. ORDER NO. DESCRIPTION H/V M. LOCATION IC2 IC3 IC5 IC6 IC7 IC8 IC9 IC10 IC12 IC15 IC17 IC20 IC22 IC23 1140005991 1130011770 1110005320 1110006350 1110005340 1110006260 1110003201 1140008650 1190001350 1110001811 1110005350 1130009090 1140011511 1190001340 S.IC S.IC S.IC S.IC S.IC S.IC S.IC S.IC S.IC S.IC S.IC S.IC S.IC S.
[MAIN UNIT] REF NO. R99 R100 R101 R103 R104 R105 R106 R108 R109 R110 R111 R115 R116 R121 R122 R123 R124 R126 R127 R128 R129 R133 R134 R135 R136 R137 R138 R139 R140 R141 R142 R143 R144 R145 R146 R147 R148 R149 R150 R151 R153 R154 R155 R156 R158 R159 R160 R161 R162 R163 R164 R165 R166 R167 R168 R169 R172 R181 R182 R183 R184 R185 R186 R187 R188 R190 R194 R195 R196 R197 R198 R199 R200 R201 R202 R209 R210 R211 R213 R214 R215 R216 R217 R218 R219 R220 R221 R222 R223 R224 R225 [MAIN UNIT] ORDER NO.
[MAIN UNIT] REF NO. C27 C28 C29 C30 C32 C33 C36 C40 C42 C46 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 C63 C65 C66 C67 C69 C70 C71 C72 C73 C74 C75 C76 C79 C80 C81 C82 C99 C100 C101 C102 C103 C104 C105 C107 C108 C109 C110 C111 C113 C114 C115 C116 C117 C118 C119 C120 C121 C122 C123 C126 C129 C133 C134 C135 C137 C138 C139 C141 C143 C144 C145 C146 C148 C149 C150 C151 C152 C153 C154 C155 C156 C157 C158 C159 C160 [MAIN UNIT] ORDER NO.
[MAIN UNIT] REF NO. C315 C316 C317 C318 C319 C320 C321 C322 C323 C324 C325 C326 C327 C328 C329 C330 C331 C332 C333 C334 C335 C338 C339 C340 C345 C346 C347 C348 C349 C350 C351 C352 C353 C354 C355 C357 C359 C360 C361 C366 C367 C368 C369 C370 C371 C372 C373 C375 C376 C377 C379 C384 C386 C387 C388 C390 C393 C394 C395 C396 C397 C398 C399 C400 C401 C402 C406 C409 C410 C412 C413 C420 C421 C422 C423 C424 C430 C432 C433 C435 C436 C437 C438 C439 C440 C441 C442 C443 C444 [MAIN UNIT] ORDER NO.
[PA UNIT] REF NO. [CONNECT UNIT] ORDER NO.
[MAIN UNIT] • BC-160 (Optional product) [MAIN UNIT] REF NO. ORDER NO. DESCRIPTION H/V M. LOCATION IC1 IC2 IC3 IC4 1110006480 1110003071 1140012301 1110002700 S.IC S.IC S.IC S.IC NJM2801U1-0543-TE1 µPC494GS-E1-A µPD789112AMC-534-5A4-A NJM2904M-TE1 B B B B 10.2/62.3 13/36.7 19.1/19.6 35.1/13.8 Q1 Q2 Q3 Q4 Q5 Q6 1530002060 1550000090 1530002060 1530002060 1590000430 1530002060 S.TR S.FET S.TR S.TR S.TR S.
SECTION 8 MECHANICAL PARTS AND DISASSEMBLY [CHASSIS PARTS] REF. NO. ORDER NO. [PA UNIT] DESCRIPTION REF. NO. QTY. ORDER NO. DESCRIPTION QTY.
* MP2 (C), MP12 (C): The shape is depending on the version. 167 (6 37/64) Unit: mm (inch) MP13 (C) 15.4 (39/64) MP25 (C) J1 (C) SP1 (C) MP35 (C) MP8 (C) W1 (C) MP24 (C) 120 (4 23/32) 3.7 (9/64) MP31 (C) ANT Unit MP1 (C) MP17 (C) MP801 (A) MP20 (C) MP33 (C) MP12* (C) MP28 (C) 1.7 (1/16) 32.5 (1 9/32) 1.7 (1/16) 5.2 (13/64) CONNECT Unit 17.8 (45/64) 2.4 (3/32) 53 (2 3/32) MP32 (C) PA Unit 38.
SECTION 9 SEMICONDUCTOR INFORMATION • TRANSISTORS AND FET's 2SA1577 T106 R (Symbol: HR) • DIODES 2SB1132 T100 R (Symbol: BAR) 2SC4081 T106 R (Symbol: BR) B B C E B 2SC5107 O (Symbol: MFO) 2SC5700 (Symbol: WB-) B C E E 3SK324UG-TL-E (Symbol: UG-) S G2 D E E 2SK3019 (Symbol: KN) 2SK880 Y (Symbol: XY) 3SK293 (Symbol: UF) S D RD07MVS1 (Symbol: RD07MVS1) G G D S S S D A S UNR9111J (Symbol: 6A) UNR9113J (Symbol: 6C) B B C MA2S077 (Symbol: S) A C A1 C E MA2S111 (Symbol: A
SECTION 10 BOARD LAYOUTS • MAIN UNIT (TOP VIEW) V45 MIC V40 P0 7 4 1 TOP SWITCH V35 V30 P1 V25 8 0 5 2 V20 P2 V15 3 4 V10 9 6 3 J4 GND GND # P3 SP GND V5 V0 1 2 H0 H5 H10 H15 H20 H25 H30 H35 H40 H45 • ANT UNIT (TOP VIEW) H50 H55 H60 H65 H70 H75 H80 H85 H90 H95 H100 H105 to SPEAKER “SP1” (CHASSIS) • PA UNIT (TOP VIEW) V25 • BC-160 (TOP VIEW) ANT V15 J1 (CHASSIS) DC IN V20 • CONNECT UNIT (TOP VIEW) V10 V10 V15 2 1 V5 (No patterns) V5 V10 V0 V5 V
• MAIN UNIT (BOTTOM VIEW) V45 SIDE1 PTT SIDE2 SIDE3 V40 V35 to PA unit “J702” ISENS APC GND RX V30 V25 V20 V15 VR & POWER SWITCH to PA unit “J701” V10 VCC T5V GND TX EXT SPEAKER EXT MIC V5 V0 H105 H100 H95 H90 H85 H80 H75 H70 H65 H60 H55 H50 H45 H40 H35 H30 H25 H20 H15 H10 H5 J702 ISENS APC GND RX 1 to MAIN unit D_IF GND +5V VCC NC MMUT AFON BEPO RMUT DISC AFOUT DAFO REM CSS CIRQ NC CSO CSI CCK GND VCC VCC GND to ANT unit TX to CONNECT unit “J901” 4 40 V25 • BC-
SECTION 11 BLOCK DIAGRAM S5V Q18: XP1214 Q19: UNR9213J Q20 2SC4116 LVIN IC7 NJM12902V RIPPLE FIL BUFF Q21 2SK880 15.3 MHz X2 CR-783 BAL BUFF D9 : HVC376B D11: HVC375B D33: HVC376B RLV ADJ LOOP FIL Q22 2SC5006 X3 PLST SCK SSO ULCK BPF D31: MA2S077 D32: MA2S077 LPF FM MOD IF IC T5V IF AMP CERAMIC BPF CERAMIC BPF FI3 SFPKA450K FI2 CFWLB450K 450KHz APCV FI1 FL-335 LPF Q705: XP6401 Q706: 2SC4081 PDET APC AMP 1 CURRENT DET APC F701 0467003.
VOLTAGE DIAGRAMS # 2 2 , M( # 2 K 2 - 6 '.$ 2 K )# .*- 6 $ # 1 5.2 * 2 K 2 K # #,/ # 2 # # # P 2 # # # 2 K 2 K 6## # P #,/.% #05 12 - 1 )# .*- 1 5.2 * 0/$. 6## ." 6/54 '.$ #42, 6).
CONNECT UNIT J901 L901 BLM21P300S VCC VCC 2 1 VCC BATTERY CONNECTOR J2 F701 0467003.NR 2 TX: 7.20V RX: 7.23V HV TX: 6.92V RX: 7.23V R713 1k R714 0.15 C724 0.001 C733 47p VCC TO CONNECT UNIT J901 1 C732 0.001 VCC C902 47p C901 0.001 GND C728 5p 3 2 1 4 5 6 Q705 XP6401 L707 47nH C763 0.01 C725 0.001 C727 0.001 EP711 ACZ1005Y-102 T5V TX: 2.25V RX: 0V R711 33k L706 EXCCL3225U R712 1k C709 0.001 R734 JPW Q706 2SC4081 R735 JPW C761 0.
BC-160 IC1 NJM2801U1-0543-TE1 1 5 VO VIN 2 GND 3 4 CD VOR MP1 8930064410 2830 TERMINAL 3 J1 (M) C10 47 C12 0.01 C7 0.1 C8 0.01 C6 10 D1 MA8110 C5 0.01 R39 MCR10-JPW R63 MCR10-JPW R50 ERJ12-JPW R20 33k 16 15 14 13 12 11 10 9 Q5 DTC144EU C19 0.01 R9 22k NO-INVIN INVIN REFOUT OC VCC C2 E2 E1 R12 10k R44 MCR10-JPW C16 0.001 R52 MCR10-JPW 1 1 R21 1k 3.54V MP4 (C) RXD R24 100 RESET R25 100 CP5 R36 4.7k IC4 NJM2904M R27 2k 1 2 3 4 R47 MCR10-JPW R26 10k C23 0.01 R32 3.3k C26 0.
1-1-32, Kamiminami, Hirano-ku, Osaka 547-0003, Japan Phone : +81 (06) 6793 5302 Fax : +81 (06) 6793 0013 URL : http://www.icom.co.jp/world/index.html 2380 116th Avenue N.E., Bellevue, WA 98004, U.S.A. Phone : +1 (425) 454-8155 Fax : +1 (425) 454-1509 URL : http://www.icomamerica.com E-mail : sales@icomamerica.com Phone : +1 (425) 454-7619 Glenwood Centre #150-6165 Highway 17 Delta, B.C.
1-1-32, Kamiminami, Hirano-ku, Osaka 547-0003, Japan S-14303HZ-C1 © 2006 Icom Inc.
