Icom IC-RX7 Service Manual Addendum
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Icom IC-RX7 Service Manual Addendum

Icom IC-RX7 Service Manual Addendum

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Download this manual See also: Service Manual, Instruction Manual
Feb. 2010
SERVICE MANUAL
ADDENDUM
CONTENTS
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
BOARD LAYOUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
VOLTAGE DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . 10

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  • Page 1 Feb. 2010 SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST ....... . 1 BOARD LAYOUTS .
  • Page 2 Feb. 2010 SECTION 6. SECTION 6. PARTS LIST [MAIN UNIT] [MAIN UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 1110005180 S.IC UPC2746TB-E3 9.4/20.9 6200010850 S.COI LQW18AN22NG00D 1110005230 S.IC UPC2757TB-E3 15.2/19.4 (LQW1608A22NG00) 4.4/37 1110005230 S.IC UPC2757TB-E3 29.6/21.7 6200010130 S.COI LQW18AN6N8C00D 8.4/34.9 1130009981 S.IC TC7W53FK(TE85L,F) 24/4.3 6200009220 S.COI...
  • Page 3 Feb. 2010 [MAIN UNIT] [MAIN UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 7030005580 S.RES ERJ2GEJ 560 X (56) 22.5/25.3 4030017420 S.CER C1005 CH 1H 470J-T 10.6/34.6 7030007290 S.RES ERJ2GEJ 222 X (2.2K) 2.9/22.1 4030017340 S.CER C1005 CH 1H 010B-T 5.1/38.3 7030007290 S.RES ERJ2GEJ 222 X (2.2K) 13.3/26.1 4030017360 S.CER C1005 CH 1H 030B-T...
  • Page 4 Feb. 2010 [MAIN UNIT] [1STVCO UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION C242 4030017730 S.CER C1005 JB 1H 471K-T [EUR-01] B 33.2/29.1 1110005180 S.IC UPC2746TB-E3 16.5/14.2 4030017730 S.CER C1005 JB 1H 471K-T [UK-01] 1130011660 S.IC MB15T61ULPVA-G-ER 10.4/11.8 4030017420 S.CER C1005 CH 1H 470J-T [USA-01] 4030017730 S.CER C1005 JB 1H 471K-T [EXP-01]...
  • Page 5 Feb. 2010 [1ST VCO UNIT] [1STVCO UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 7030009530 S.RES ERJ2GEJ 270 X (27) [EUR-01] T 19.2/10.5 4030017350 S.CER C1005 CH 1H 020B-T 20.4/11 7030009530 S.RES ERJ2GEJ 270 X (27) [UK-01] 4030017350 S.CER C1005 CH 1H 020B-T 18.3/6.8 7030007260 S.RES ERJ2GEJ 330 X (33) [USA-01]...
  • Page 6 Feb. 2010 [2NDVCO UNIT] [LOGIC UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 1130011671 S.IC MB15E03SLPFV1-G-ER-6E1 5.6/10.8 1130007031 S.IC TC7W08FU(TE12L,F) 12.1/78.1 1180003380 S.REG NJU7775F32-TE1-#ZZZB 42.6/39 1180003380 S.REG NJU7775F32-TE1-#ZZZB 32.7/41.8 1530003612 S.TRA FH102A-TR-E 5.3/9 1110005731 S.IC S-80928CNMC-G8Y-G 45.7/58.4 1530003592 S.TRA 2SC5277A-2-TL-E 9.7/14.7 1130007111 S.IC TC7W04FU(TE12L,F) 7.6/55.1...
  • Page 7 Feb. 2010 [LOGIC UNIT] [LOGIC UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 7030005090 S.RES ERJ2GEJ 104 X (100K) 16/23.4 R227 7030005050 S.RES ERJ2GEJ 103 X (10K) 4.2/52.4 7030005050 S.RES ERJ2GEJ 103 X (10K) 3.9/58.2 R228 7030005050 S.RES ERJ2GEJ 103 X (10K) 22.6/70.6 7030008290 S.RES ERJ2GEJ 183 X (18K) 2.2/57.3...
  • Page 8 Feb. 2010 [LOGIC UNIT] PARTS DESCRIPTION LOCATION C104 4030016930 S.CER C1005 JB 1A 104K-T 21/37.4 C106 4030018860 S.CER C1005 JB 0J 105K-T 14/50.4 C108 4030017040 S.CER C1005 JB 1A 333K-T 14/51.3 C109 4030017460 S.CER C1005 JB 1H 102K-T 31.4/46 C111 4030016930 S.CER C1005 JB 1A 104K-T 12.3/53.3 C112...
  • Page 9 Feb. 2010 SECTION 8. BOARD LAYOUTS J1 (CHASSIS) • MAIN UNIT (TOP VIEW) R238 R224 B6970D • 1st VCO UNIT • 2nd VCO UNIT (TOP VIEW) (TOP VIEW) R101 C181 C187 R216 C435 1stLO C306 C291 VCO4 PDATA VCO3 PSTB1 VCO2 R214 C168...
  • Page 10 Feb. 2010 [EXT SP] • MAIN UNIT (BOTTOM VIEW) C451 R228 C450 C452 C428 C448 C446 C436 C127 R232 C455 C137 C427 C419 C128 C138 C150 EP12 • 2nd VCO UNIT • 1st VCO UNIT C108 R239 (BOTTOM VIEW) (BOTTOM VIEW) R226 C417 C106...
  • Page 11 Feb. 2010 SECTION 10 SECTION 10. VOLTAGE DIAGRAM • LOGIC UNIT (Left side) CPU-MAIN DIAL MMZ1005Y102CT IMSA-9631S-27Y921 MMZ1005Y102CT TP70N00E2015F LCDCS LCDRES LCDRS LCDCK LCDDT MENU LEFT LCD Back Light DOW NR I GHT BACK LIGHT ON :2.2V LIGHT LIGHT OFF:0.0V 2SC4617 SCAN R228...
  • Page 12 Feb. 2010 • LOGIC UNIT (Right side) CPU-MAIN COM:12.7V VP_DC-DC BAR ANT AF_TRUTH PSTB2 PSTB1 AGCC PDATA KY-058 VCO4 R SSI VCO3 XP4601 IC11 TRUTH NOISE VCO2 C127 C131 C137 C142 C149 SHIFT VCO1 IC16 DASTB ATTC LDATA FSET ANTSW 3076 TC7W04FU SHIFT3V...
  • Page 13 Feb. 2010 • MAIN UNIT (Left side) EARPHONE ANT ON :3.1V EARPHONE ANT OFF:0.0V 1SV308 R233 1.5K UNR9115G0 RF_IN 100K 500kHz:0.4V BAR_ANT(0.45-1.62MHz ) C102 C118 2SC5006 1SV308 1SV308 0.01 0.15U 0.15U XP4312 ATT ON :3.1V 2SC4738 ATT OFF:0.0V C104 2.7K SW(0.15-0.45 / 1.62-76MHz) 0.10U 1SV308...
  • Page 14 Feb. 2010 • MAIN UNIT (Right side) Reference Frequency check point; CP6 2nd IF FILTER 1 st IF FI LTER C435 AM/NFM_CONT IF AMP RX:0.9V 0.01 0.001 Reference frequency signal AMP UPC2757TB EFCH429MKQP1 UPC2757TB DAN235E 2SC5006 C203 R167 C158 C173 C190 C405 C223...
  • Page 15 Feb. 2010 • 2nd VCO UNIT • 1st VCO UNIT VCO3V VCO1 3076 VCO2 PDATA PSTB1 VCO3 PDATA VCO4 MP 1 PSTB2 RX:1.1V 20 GNDOSC FINRF1 21 SWA2 FINRF2 22 SWB2 XFINRF 23 GNDDIG GNDRF 24 SWA1 0.22U FH102A-E MB15T61U L 0.001 0.001 0.01...
  • Page 16 Feb. 2009 SERVICE MANUAL ADDENDUM CONTENTS REPLACEMENT PAGE ..... . . 6-1 PARTS LIST ....... . 1 VOLTAGE DIAGRAM .
  • Page 17 (Replacement page) Feb. 2009 SECTION 6. MECHANICAL PARTS [CHASSIS PARTS] [MAIN UNIT] ORDER ORDER DESCRIPTION QTY. DESCRIPTION QTY. 6510024970 AXK5F16535YJ 6910020160 3076 SMA 6510024970 AXK5F16535YJ 2510001490 362P0801 6510026700 AXK3S50335G 6450002250 HSJ1456-010320 6450002131 04-730A3-02BKA 8900016000 OPC-1129A 8930076971 3076 MAIN SHIELD-1 8210024920 3076 FRONT PANEL (Incl. MP15) 8930077190 3076 VCO SHEET 8210024870 3076 REAR PANEL 8930076930 INSULATION SHEET (MH)
  • Page 18 Feb. 2009 SECTION 6. PARTS LIST [MAIN UNIT] [MAIN UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 1110005180 S.IC UPC2746TB-E3 9.4/20.9 6200010850 S.COI LQW18AN22NG00D 1110005230 S.IC UPC2757TB-E3 15.2/19.4 (LQW1608A22NG00) 4.4/37 1110005230 S.IC UPC2757TB-E3 29.6/21.7 6200010130 S.COI LQW18AN6N8C00D 8.4/34.9 1130009981 S.IC TC7W53FK(TE85L,F) 24/4.3 6200009220 S.COI LQW18AN15NG00D...
  • Page 19 Feb. 2009 [MAIN UNIT] [MAIN UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 7030005240 S.RES ERJ2GEJ 473 X (47K) 0.75/24.3 4030017460 S.CER ECJ0EB1E102K 23.6/40.6 7030005580 S.RES ERJ2GEJ 560 X (56) 22.5/25.3 4030017590 S.CER ECJ0EC1H070C 6.3/36.2 7030007290 S.RES ERJ2GEJ 222 X (2.2K) 2.9/22.1 4030017420 S.CER ECJ0EC1H470J 10.6/34.6...
  • Page 20 Feb. 2009 [MAIN UNIT] [MAIN UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION C242 4030017730 S.CER ECJ0EB1E471K [EUR-01] 33.2/29.1 6450002131 CON 04-730A3-02BKA 4030017730 S.CER ECJ0EB1E471K [UK-01] 4030017420 S.CER ECJ0EC1H470J [USA-01] 4030017730 S.CER ECJ0EB1E471K [EXP-01] 6910013310 S.BEA MMZ1608D121B 36/36.2 4030017730 S.CER ECJ0EB1E471K [CHN-01] 6910014690 S.BEA MPZ1608S221A-T...
  • Page 21 Feb. 2009 [1st VCO UNIT] [1st VCO UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 7030007270 S.RES ERJ2GEJ 151 X (150) 18.5/12.2 4030017380 S.CER ECJ0EC1H050B [EUR-01] 15.1/12.5 7030007260 S.RES ERJ2GEJ 330 X (33) 19.2/16.4 4030017380 S.CER ECJ0EC1H050B [UK-01] 7030007250 S.RES ERJ2GEJ 220 X (22) 17.8/12.5 4030017380 S.CER ECJ0EC1H050B [USA-01]...
  • Page 22 Feb. 2009 [2nd VCO UNIT] [LOGIC UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 1130011671 S.IC MB15E03SLPFV1-G-ER-6E1 5.6/10.8 1130007031 S.IC TC7W08FU(TE12L,F) 12.1/78.1 1180003380 S.REG NJU7775F32-TE1-#ZZZB 42.6/39 1180003380 S.REG NJU7775F32-TE1-#ZZZB 32.7/41.8 1530003612 S.TRA FH102A-TR-E 5.3/9 1110005731 S.IC S-80928CNMC-G8Y-G 45.7/58.4 1530003591 S.TRA 2SC5277-D2-TL-E 9.7/14.7 1130007111 S.IC TC7W04FU(TE12L,F)
  • Page 23 Feb. 2009 [LOGIC UNIT] [LOGIC UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 7030005090 S.RES ERJ2GEJ 104 X (100K) 16/23.4 R226 7030005600 S.RES ERJ2GEJ 273 X (27K) 9/43 7030005050 S.RES ERJ2GEJ 103 X (10K) 3.9/58.2 R227 7030005050 S.RES ERJ2GEJ 103 X (10K) 4.2/52.4 7030008290 S.RES ERJ2GEJ 183 X (18K) 2.2/57.3...
  • Page 24 Feb. 2009 [LOGIC UNIT] PARTS DESCRIPTION LOCATION C103 4030019500 S.CER GRM21BB31A106KE18 (GRM40 B) 35.3/41.8 C104 4030016930 S.CER ECJ0EB1A104K 21/37.4 C106 4030018860 S.CER ECJ0EB0J105K 14/50.4 C108 4030017040 S.CER ECJ0EB1A333K 14/51.3 C109 4030017460 S.CER ECJ0EB1E102K 31.4/46 C111 4030016930 S.CER ECJ0EB1A104K 12.3/53.3 C112 4030016930 S.CER ECJ0EB1A104K 43.3/9.2 C114...
  • Page 25 Feb. 2009 SECTION 10 SECTION 10. VOLTAGE DIAGRAM • LOGIC UNIT (Left side) CPU-MAIN DIAL MMZ1005Y102CT IMSA-9631S-27Y921 MMZ1005Y102CT TP70N00E2015F LCDCS LCDRES LCDRS LCDCK LCDDT MENU LEFT LCD Back Light DOW NR I GHT BACK LIGHT ON :2.2V LIGHT LIGHT OFF:0.0V 2SC4617 SCAN R228...
  • Page 26 Feb. 2009 • LOGIC UNIT (Right side) CPU-MAIN COM:12.7V VP_DC-DC BAR ANT AF_TRUTH PSTB2 PSTB1 AGCC PDATA KY-058 VCO4 R SSI VCO3 XP4601 IC11 TRUTH NOISE VCO2 C127 C131 C137 C142 C149 SHIFT VCO1 IC16 DASTB ATTC LDATA FSET ANTSW 3076 TC7W04FU SHIFT3V...
  • Page 27 Feb. 2009 • MAIN UNIT (Left side) EARPHONE ANT ON :3.1V EARPHONE ANT OFF:0.0V 1SV308 R233 1.5K UNR9115J RF_IN 100K 500kHz:0.4V BAR_ANT(0.45-1.62MHz ) C102 C118 2SC5006 1SV308 1SV308 0.01 0.15U 0.15U XP4312 ATT ON :3.1V 2SC4738 ATT OFF:0.0V C104 2.7K SW(0.15-0.45 / 1.62-76MHz) 0.10U 1SV308...
  • Page 28 Feb. 2009 • MAIN UNIT (Right side) Reference Frequency check point; CP6 2nd IF FILTER 1 st IF FI LTER AM/NFM_CONT C435 IF AMP RX:0.9V 0.01 0.001 Reference frequency signal AMP UPC2757TB UPC2757TB EFCH429MKQP1 DAN235E 2SC5006 C203 R167 C158 C173 C190 C405 C223...
  • Page 29 Feb. 2009 • 2nd VCO UNIT • 1st VCO UNIT VCO3V VCO1 3076 VCO2 PDATA PSTB1 VCO3 PDATA VCO4 MP 1 PSTB2 RX:1.1V 20 GNDOSC FINRF1 21 SWA2 FINRF2 22 SWB2 XFINRF 23 GNDDIG GNDRF 24 SWA1 0.22U FH102A-E MB15T61U L 0.001 0.001 0.01...
  • Page 30 WIDEBAND RECEIVER S-14510XZ-C1 Aug. 2008...
  • Page 31 Addresses are provided on the inside back cover for your convenience. Icom, Icom Inc. and logo are registered trademarks of Icom Incorporated (Japan) in the United States, the United Kingdom, Germany, France, Spain, Russia and/or other countries.

  • Page 32: Table Of Contents

    TABLE OF CONTENTS SECTION SPECIFICATIONS SECTION INSIDE VIEWS SECTION DISASSEMBLY INSTRUCTION SECTION CIRCUIT DESCRIPITON MAIN UNIT..............4-1 1st VCO UNIT .

  • Page 33: Specifications

    SECTION 1. SPECIFICATIONS D General D Receiver • Frequency coverage • Receive system : Triple-conversion superheterodyne (Unit: MHz) 0.150–821.995, 851.000–866.995, • Intermediate frequencies : 1st : 429.1 MHz, 896.000–1300.000 2nd : 19.65 MHz (FM/AM), Other than USA 0.150–1300.000 20.75 MHz (WFM) •...
  • Page 34 SECTION 2. INSIDE VIEWS • LOGIC UNIT EEPROM (IC14) EEPROM (IC15) 3V line SW (IC17) (Q28) CLONE BUFFER (IC8) 3V REG TONE CONTROLER (AF SW) (IC4) (IC20) 3.2V REGULATOR (IC3) TONE FILTER (IC12) • MAIN UNIT 2ND VCO 1ST VCO REFERENCE FREQUENCY OSCILLATOR (X1)
  • Page 35 SECTION 3. DISASSEMBLY INSTRUCTION 1. Removing the front panel 2. Removing the LOGIC UNIT q Unscrew 4 screws from the rear panel. q Unscrew total of 4 screws from the LOGIC UNIT. w Unsolder 3 points at the rotary encoder (CONTROL 4 screws DIAL), then remove the LOGIC UNIT from the rear panel.

  • Page 36: Circuit Descripiton

    SECTION 4. CIRCUIT DESCRIPTION 4-1 MAIN UNIT RF AMP/FILTER CIRCUITS (1 GHz BAND) MAIN UNIT has RF circuits, 1st and 2nd IF circuits, FM and AM demodulator circuits. The RX signals from the antenna The 833–1300 MHz RX signals are passed through the diode SW (D10) and HPF/LPF for unwanted signal removal, are fi...

  • Page 37: 1St Vco Unit

    to the RF AMP and IF AMP for AGC operation. The 4-3 2nd VCO UNIT demodulated AF signals are entered to the LOGIC UNIT via The 2nd VCO UNIT oscillates the 2nd LO signals. The VCO AF SW (IC9). oscillates 409.4500/448.7500 MHz signal in FM/AM mode, and oscillates 408.3500/449.8500 MHz signal in WFM mode .
  • Page 38 4-4 LOGIC UNIT The LOGIC UNIT has CPU, D/A converter (DAC), AF circuits AF CIRCUITS and power supply circuits. The CPU and DAC control the Other than WFM mode operation, and when the AF fi lter is whole operation of the receiver (RX frequency setting, BPF activated, the demodulated AF signals are passed through tuning etc.), and the AF circuits filter, amplify and tone- the AF fi...

  • Page 39: Voltage Diagram

    4-5 VOLTAGE DIAGRAM Voltage from the power supply is routed to the whole of the receiver via the regulators and switches. LOGIC UNIT MAIN UNIT [DC 6V] I C11:TC7W04FU Q24:2SC4738 IC3:NJU7775F3 Q2:2SA1588 D24-D27:1SS372 +10V CPU3V CHARGE CPU3V Padding voltage to the loop filter (1stV), Tuned BPFs (M: D53, 58) DC-DC CONTROL BATTERY...

  • Page 40: Cpu Port Allocation

    4-6 CPU PORT ALLOCATION LINE LINE DESCRIPTION DESCRIPTION NAME NAME CTONE Demodulated tone signals. Key matrix. Filtered demodulated signal (extracted +3V line SW VSCAF PCON voice signal). "L"=Power ON Charge status. Tone fi lter (L: IC12) SW TCON "H"=While pre/fast charging. "L"=Filter activated.

  • Page 41: Adjustment Procedures

    SECTION 5. ADJUSTMENT PROCEDURE 5-1 PREPARATION ¤ REQUIRED TEST EQUIPMENTS EQUIPMENT GRADE AND RANGE EQUIPMENT GRADE AND RANGE Frequency range : 0.1–1500 MHz Frequency range : 0.1–30 MHz Standard Signal Output level : 0.1 µV to 32 mV Frequency Counter Frequency accuracy : ±1 ppm or better Generator (SSG) (–127 to –17 dBm)

  • Page 42: Frequency Adjustment

    5-2 ADJUSTMENTS ADJUSTMENT DISPLAYED ITEM OPERATION VALUE REFERENCE 1) Remove the front panel and LOGIC UNIT to expose FREQUENCY the MAIN UNIT. (Refer to the DISASSEMBLY INSTRUCTION) 19.2000 MHz [REF] 2) Connect a Frequency Counter to the CP6 on the ±3 ppm MAIN UNIT through a thin coaxial cable as below.
  • Page 43 ADJUSTMENT DISPLAYED ITEM OPERATION VALUE SENSITIVITY • Connect an SSG to the antenna connector, and set it as; -MF band- Frequency : (Displayed on the function display) (Preparation) – Modulation : 1 kHz Deviation : 3.5 kHz (FM) Level : –5 dBµ (Band high) 1) Set the SSG as;...
  • Page 44 ADJUSTMENT DISPLAYED ITEM OPERATION VALUE S-METER CURVE • Connect an SSG to the antenna connector and set it -145 MHz- – – (Preparation) Modulation : 1 kHz Deviation : 3.5 kHz (FM) (S0 level) 1) Set the SSG as; Frequency : (Displayed on the function display) [S0] Level : –9 dBµ...
  • Page 45 ADJUSTMENT DISPLAYED ITEM OPERATION VALUE • Connect an SSG to the antenna connector and set it S-METER – – (Preparation) Modulation : 1 kHz -MF band- 1) Set the SSG as; (FM:S3 level) Frequency : (Displayed on the function display) [FS3] Deviation : 3.5 kHz (FM)
  • Page 46 ADJUSTMENT DISPLAYED ITEM OPERATION VALUE 1) Set the SSG as; -200 MHz band- (FM:S3 level) Frequency : (Displayed on the function display) [FS3] Deviation : 3.5 kHz (FM) Level : –5 dBµ 2) Push [ENT MW] key. 1) Set the SSG as; -200 MHz band- (WFM:S0 level) Frequency : (Displayed on the function display)
  • Page 47 SECTION 6. PARTS LIST [MAIN UNIT] [MAIN UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 1110005180 S.IC UPC2746TB-E3 9.4/20.9 6200010130 S.COI LQW18AN6N8C00D 8.4/34.9 1110005230 S.IC UPC2757TB-E3 15.2/19.4 6200009220 S.COI LQW18AN15NG00D 2.6/36.1 1110005230 S.IC UPC2757TB-E3 29.6/21.7 6200010120 S.COI LQW18AN5N6C00D 9.1/33 1130009981 S.IC TC7W53FK(TE85L,F) 24/4.3 6200010850 S.COI...
  • Page 48 [MAIN UNIT] [MAIN UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION R114 7030005220 S.RES ERJ2GEJ 223 X (22K) 26.6/7.2 4030016930 S.CER ECJ0EB1A104K 29/38.1 R118 7030005160 S.RES ERJ2GEJ 105 X (1M) 23.9/8.9 4030016930 S.CER ECJ0EB1A104K 27.5/36.8 R126 7030005240 S.RES ERJ2GEJ 473 X (47K) 30.5/10.5 4030017730 S.CER ECJ0EB1E471K 16/30.5...
  • Page 49 [MAIN UNIT] [1st VCO UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION C265 4030016930 S.CER ECJ0EB1A104K 42.3/18.1 1110005180 S.IC UPC2746TB-E3 16.5/14.2 C266 4030017730 S.CER ECJ0EB1E471K 34.5/14.8 1130011660 S.IC MB15T61ULPVA-G-ER 10.4/11.8 C269 4030016790 S.CER ECJ0EB1C103K 45.4/24.5 C270 4030017730 S.CER ECJ0EB1E471K 33.3/14.5 C272 4030017460 S.CER ECJ0EB1E102K 44.2/21.3 1530003260 S.TRA...
  • Page 50 [1st VCO UNIT] [1st VCO UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 7030009530 S.RES ERJ2GEJ 270 X (27) [EUR-01] 17.1/9.4 4030017350 S.CER ECJ0EC1H020B 18.3/6.8 7030009530 S.RES ERJ2GEJ 270 X (27) [UK-01] 4030017380 S.CER ECJ0EC1H050B [EUR-01] 14.1/18.7 7030007260 S.RES ERJ2GEJ 330 X (33) [USA-01] 4030017380 S.CER ECJ0EC1H050B [UK-01]...
  • Page 51 [LOGIC UNIT] [LOGIC UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 1130007031 S.IC TC7W08FU(TE12L,F) 12.1/78.1 7030005090 S.RES ERJ2GEJ 104 X (100K) 16/23.4 1180003380 S.REG NJU7775F32-TE1-#ZZZB 42.6/39 7030005050 S.RES ERJ2GEJ 103 X (10K) 3.9/58.2 1180003380 S.REG NJU7775F32-TE1-#ZZZB 32.7/41.8 7030008290 S.RES ERJ2GEJ 183 X (18K) 2.2/57.3 1110005731 S.IC S-80928CNMC-G8Y-G...
  • Page 52 [LOGIC UNIT] [LOGIC UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION R226 7030005600 S.RES ERJ2GEJ 273 X (27K) 9/43 C108 4030017040 S.CER ECJ0EB1A333K 14/51.3 R227 7030005050 S.RES ERJ2GEJ 103 X (10K) 4.2/52.4 C109 4030017460 S.CER ECJ0EB1E102K 31.4/46 R228 7030005050 S.RES ERJ2GEJ 103 X (10K) 22.6/70.6 C111 4030016930 S.CER ECJ0EB1A104K...

  • Page 53: Mechanical Parts

    SECTION 6. MECHANICAL PARTS [CHASSIS PARTS] [MAIN UNIT] ORDER ORDER DESCRIPTION QTY. DESCRIPTION QTY. 6510024970 AXK5F16535YJ 6910020160 3076 SMA 6510024970 AXK5F16535YJ 6510026700 AXK3S50335G 2510001490 362P0801 6450002250 HSJ1456-010320 6450002131 04-730A3-02BKA 8900016000 OPC-1129A 8930076971 3076 MAIN SHIELD-1 8210024920 3076 FRONT PANEL (Incl. MP15) 8930077190 3076 VCO SHEET 8210024870 3076 REAR PANEL 8930076930 INSULATION SHEET (MH)
  • Page 54 LOGIC UNIT MP28(C) MP1(L) MP4(L) DS13(L) MP2(L) MP26(C)×3 MP7(C) MP10(C) MP1(C) MP12(C) MP22(C) MP14(C) MP21(C) MP5(C) MP24(C)×2 MP17(C) MP20(C) MP8(C) MP27(C) MP3(C) S21(L) MP2(C) MP13(C) J1(C) MP11(C) MP26(C) MP18(C) MAIN UNIT MP6(C) MP28(C) MP16(C) MP25(C ) MP19(C) 1st VCO UNIT MP4(C) EP8(L) 2nd VCO UNIT...

  • Page 55: Board Layouts

    SECTION 8. BOARD LAYOUTS J1 (CHASSIS) • MAIN UNIT (TOP VIEW) R238 R224 B6970C • 1st VCO UNIT • 2nd VCO UNIT (TOP VIEW) (TOP VIEW) R101 C181 C187 R216 C435 1stLO C306 C291 VCO4 PDATA VCO3 PSTB1 VCO2 C168 VCO1 R214 VCO3V...
  • Page 56 [EXT SP] • MAIN UNIT (TOP VIEW) C451 R228 C450 C452 C428 C448 C446 C436 C127 D7 D8 C455 R232 C137 C427 C419 C128 C138 C150 EP12 C108 • 2nd VCO UNIT • 1st VCO UNIT R239 (TOP VIEW) (TOP VIEW) R226 C417 C106...

  • Page 57: Block Diagram

    SECTION 9. BLOCK DIAGRAM 0.1500–1300.0000 MHz ANTENNA MODEC 1 MODEC1 X3:CDBKB450K Q38:XP1114 Q40:UNR9213J FL-293 (FM RX) EFCH429MKQP1 IC13:TA31136FN Q31:2SC5006 UPC2757TB D50:MA2S728 UPC2757TB MODE XTAL M ODE LIMIT 1SV172 AM P AM P FI3:ELFY450E MIXOUT 2ndMix 1stMix D47:DAN235E MAIN UNIT D48:DAN235E UPC2746TB 1stIFFIL D44:DAN235E...

  • Page 58: Logic Unit (Left Side)

    SECTION 10. VOLTAGE DIAGRAM • LOGIC UNIT (Left side) CPU-MAIN DIAL MMZ1005Y102CT IMSA-9631S-27Y921 MMZ1005Y102CT TP70N00E2015F LCDCS LCDRES LCDRS LCDCK LCDDT MENU LEFT LCD Back Light DOW NR I GHT BACK LIGHT ON :2.2V LIGHT LIGHT OFF:0.0V 2SC4617 SCAN R228 TXD2 RXD2 SCK2 SERCH...

  • Page 59: Logic Unit (Right Side)

    • LOGIC UNIT (Right side) CPU-MAIN COM:12.7V VP_DC-DC BAR ANT AF_TRUTH PSTB2 PSTB1 AGCC PDATA KY-058 VCO4 R SSI VCO3 XP4601 TRUTH NOISE VCO2 IC11 C127 C131 C137 C142 C149 SHIFT VCO1 IC16 DASTB ATTC LDATA FSET ANTSW 3076 TC7W04FU SHIFT3V MP 6 SVC347...

  • Page 60: Main Unit (Left Side)

    • MAIN UNIT (Left side) EARPHONE ANT ON :3.1V EARPHONE ANT OFF:0.0V 1SV308 R233 1.5K UNR9115J RF_IN 100K 500kHz:0.4V BAR_ANT(0.45-1.62MHz ) C102 C118 2SC5006 1SV308 1SV308 0.01 0.15U 0.15U XP4312 ATT ON :3.1V 2SC4738 ATT OFF:0.0V C104 2.7K SW(0.15-0.45 / 1.62-76MHz) 1SV308 0.10U 1SV308...

  • Page 61: Main Unit (Right Side)

    • MAIN UNIT (Right side) Reference Frequency check point; CP6 2nd IF FILTER 1 st IF FI LTER AM/NFM_CONT C435 IF AMP RX:0.9V 0.01 0.001 Reference frequency signal AMP UPC2757TB EFCH429MKQP1 UPC2757TB DAN235E 2SC5006 C203 C158 C173 C190 C405 C223 R167 C269 C284...
  • Page 62 • 1st VCO UNIT • 2nd VCO UNIT VCO3V VCO1 3076 3076 VCO2 PDATA PSTB1 VCO3 MP 1 PDATA VCO4 MP 1 PSTB2 3076 AXK6F16335YJ MP 2 RX:1.1V AXK6F16335YJ 20 GNDOSC FINRF1 21 SWA2 FINRF2 22 SWB2 XFINRF 23 GNDDIG GNDRF 24 SWA1 0.22U...
  • Page 63 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, The Boulevard, Altira Business Park, Herne Bay, CT6 6GZ, UK Phone : +44 (01227) 741741...
  • Page 64 S-14510XZ-C1 1-1-32, Kamiminami, Hirano-ku, Osaka 547-0003, Japan © 2008 Icom Inc.

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