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1、SERVICE MANUAL HF/VHF/UHF ALL MODE TRANSCEIVER S-14214HZ-C1 Dec. 2005 INTRODUCTION This service manual describes the latest service information for the IC-7000 HF/VHF/UHF ALL MODE TRANSCEIVER at the time of publication. ORDERING PARTS Be sure to include the following four points when ordering replac

2、ement parts: 1. 10-digit Icom parts number 2. Component name and informations 3. Equipment model name and unit name 4. Quantity required 5030002820 LCD LTA025A161A IC-7000 Front unit 5 pieces 8810009610 Screw FH M2.6 6 ZK IC-7000 Top cover 10 pieces Addresses are provided on the inside back cover fo

3、r your convenience. REPAIR NOTES 1. Make sure the problem is internal before disassembling the transceiver. 2. DO NOT open 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 c

4、ircuits or electronic parts. An insulated turning tool MUST be used for all adjustments. 5. DO NOT keep power ON for a long time when the transceiver is defective. 6. DO NOT transmit power into a signal generator or a sweep generator. 7. ALWAYS connect a 50 dB to 60 dB attenuator between the transce

5、iver and a deviation meter or spectrum analyzer when using such test equipment. 8. READ the instructions of test equipment thoroughly before connecting equipment to the transceiver. To upgrade quality, all electrical or mechanical parts and internal circuits are subject to change without notice or o

6、bligation. VER.NO.VERSIONSYMBOL #02EuropeEUR #03FranceFRA #04SpainESP #05U.S.A.USA #08ExportEXP #10United KingdomUK 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. NEVER c

7、onnect the transceiver to an AC outlet or to a DC power supply that uses more than 16 V. Such a connection could cause a fire or electric hazard. DO NOT expose the transceiver to rain, snow or any liquids. DO NOT reverse the polarities of the power supply when connecting the transceiver. DO NOT appl

8、y an RF signal of more than 20 dBm (100 mW) to the antenna connector. This could damage the trans- ceivers front end. DANGER TABLE OF CONTENTS SECTION 1 SPECIFICATIONS SECTION 2 INSIDE VIEWS SECTION 3 CIRCUIT DESCRIPITON 3 - 1 RECEIVER CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 1 3 - 2 TRANSMITTER CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 4 3 - 3 DDS CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 6 3 - 4 LOGIC CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 8 3 - 5 POWER SUPPLY CIRCUITS. . . . . . . . . . . . . .

11、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 8 3 - 6 PORT ALLOCATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 9 SECTION 4 ADJUSTMENT PROCEDURES 4 - 1 PREPARATION .

12、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 1 4 - 2 DDS ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 3 4 -

13、3 DISPLAY ADJUSTMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 3 4 - 4 TRANSMITTER ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 3 4 - 5 R

14、ECEIVER ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 11 SECTION 5 PARTS LIST SECTION 6 MECHANICAL PARTS AND DISASSEMBLY SECTION 7 SEMI-CONDUCTOR INFORMATION SECTION 8 BOARD LAYOUTS 8 - 1 DISPLAY UNIT. . . . . . . .

15、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 1 8 - 2 VR UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 1 8 - 3

16、 MAIN UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 3 8 - 4 PA UNIT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17、. . . . . . . . . . 8 - 5 8 - 5 DDS UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 7 8 - 6 LOGIC UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18、. . . . . . . . . . . . . . . . . . . . . . . . 8 - 9 8 - 7 CONNECT UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 11 8 - 8 DRIVER UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

19、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 11 8 - 9 HM-151 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 11 SECTION 9 WIRING DIAGRAM SECTION 10 BLOCK DIAGRAM SECTION 11

20、CIRCUIT DIAGRAMS 11 - 1 DISPLAY/VR/CONNECT UNITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 1 11 - 2 MAIN UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

21、 . . . . . . . . . 11 - 3 11 - 3 LOGIC UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 7 11 - 4 PA/DRIVER UNITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

22、. . . . . . . . . . . . . . . . . . . 11 - 10 11 - 5 DDS UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 13 SECTION 1 SPECIFICATIONS 1 - 1 GENERAL Frequency coverage : Receive 0.030 199.999999 MHz*1

23、,*2 400.000 470.000000 MHz*1,*2 Transmit 1.800 1.999999 MHz*2 3.500 3.999999 MHz*2 5.260 5.405000 MHz*2 7.000 7.300000 MHz*2 10.100 10.150000 MHz 14.000 14.350000 MHz 18.068 18.168000 MHz 21.000 21.450000 MHz 24.890 24.990000 MHz 28.000 29.700000 MHz 50.000 54.000000 MHz*2 144.000 148.000000 MHz*2 4

24、30.000 450.000000 MHz*2 *1 Some frequency bands are not guaranteed. *2 Depending on version. Mode : USB, LSB, CW, RTTY (FSK), AM, FM, WFM (WFM is for receiver only) Number of memory ch. : 503 (495 split, 6 scan edges, 2 call) Antenna connector : SO-239 2 (for HF/50 MHz and 144/430 MHz)/50 Power supp

25、ly requirement : 13.8 V DC 15% (negative ground) Frequency stability : Less than 0.5 ppm (0C to +50C ;+32F to +122F) Current drain : Transmit at 100 W 22 A Receive standby 1.3 A max. audio 1.6 A Usable temperature range : 10C to +60C (+14F to +140F) Dimensions : 167(W) 58(H) 180(D) mm (proj. not inc

26、luded) 6916(W) 2932(H) 7332(D) inch Weight (approx.) : 2.3 kg (5 lb 1 oz) CI-V connectors : 2-conductor 3.5 (d) mm (18) Video connector : 2-conductor 3.5 (d) mm (18) ACC connector : 13-pin Data connector : 6-pin TRANSMITTER Output power : Modulation system : SSB Digital PSN modulation AM Digital Low

27、 Power modulation FM Digital Phase modulation Spurious emissions : below 30 MHz bands Less than 50 dB above 50 MHz bands Less than 60 dB Carrier suppression : More than 50 dB Unwanted sideband : More than 50 dB Microphone connector : 8-pin modular jack (600 ) KEY connector : 3-conductor 6.35 (d) mm

28、(14) RTTY connector : 3-conductor 3.5 (d) mm (18) RECEIVER Receive system : SSB/CW/AM/FM Triple conversion superheterodyne WFM Double conversion superheterodyne Intermediate frequencies : Receive sensitivity : (pre-amp ON) Note: SSB, CW and AM modes are measured at 10 dB S/N; FM mode at 12 dB SINAD.

29、 *1 Except 44.5 MHz, 89 MHz. *2 FM mode: 2829.7 MHz Squelch Sensitivity : (pre-amp ON) SSB Less than 5.6 V FM Less than 0.3 V Selectivity : (Sharp filter is selected) SSB (BW=2.4 kHz) More than 2.4 kHz/6 dB Less than 3.6 kHz/60 dB CW (BW=500 Hz) More than 500 Hz/6 dB Less than 900 Hz/60 dB RTTY (BW=

30、350 Hz) More than 360 kHz/6 dB Less than 650 kHz/60 dB AM (BW=6 kHz) More than 6.0 kHz/6 dB Less than 15 kHz/60 dB FM (BW=15 kHz) More than 12 kHz/6 dB Less than 20 kHz/60 dB Spurious and image rejection ratio: HF bands More than 70 dB 50 MHz band More than 70 dB (except IF/2 through) 144/430 MHz ba

31、nds More than 65 dB (except 144 MHz band IF through) Audio output power : More than 2.0 W at 10% distortion (at 13.8 V DC) with an 8 load RIT variable range : 9.99 kHz PHONES connector : 3-conductor 3.5 (d) mm (18)/8 EXT SP connector : 2-conductor 3.5 (d) mm (18)/8 SSB/ CW/ RTTY AMFMWFM 0.51.8 MHz13

32、 V 1.828 MHz*1 0.15 V2.0 V 2829.995 MHz*20.5 V 50 MHz band0.12 V1.0 V0.25 V 76108 MHz10 V 144/430 MHz bands 0.11 V1.0 V0.18 V 1st IF2nd IF3rd IF SSB/CW/AM/ RTTY/FM 124.487 MHz455 kHz16.15 kHz WFM134.732 MHz10.700 MHz SSB/CW/ RTTY/FM AM 1.850 MHz bands2100 W140 W 144 MHz band250 W220 W 430 MHz band23

33、5 W214 W SECTION 2 INSIDE VIEWS 2 - 1 DDS UNITDDS UNIT RX 1st mixerRX 1st mixer (IC401: SPM5001)(IC401: SPM5001) YGR amplifierYGR amplifier (IC1: (IC1: PC2709T)PC2709T) 2nd Lo amplifier2nd Lo amplifier (Q151*: 2SC4673)(Q151*: 2SC4673) 3rd Lo DDS3rd Lo DDS (IC51*: AD9833BRM)(IC51*: AD9833BRM) 1st Lo

34、DDS1st Lo DDS (IC301*: AD9951YSV)(IC301*: AD9951YSV) MAIN UNITMAIN UNIT LOGIC UNITLOGIC UNIT RX 3rd mixerRX 3rd mixer (IC1301: TA4107F)(IC1301: TA4107F) RX 2nd mixerRX 2nd mixer (D801: HSB88WS-E)(D801: HSB88WS-E) RF switchRF switch (Q101: 2SC4213)(Q101: 2SC4213) CPUCPU (IC1302: HD64F2377VFQ33V)(IC13

35、02: HD64F2377VFQ33V) DDS UNIT 1st mixer (IC401: SPM5001) YGR amplifier (IC1: PC2709T) 2nd Lo amplifier (Q151*: 2SC4673) 3rd Lo DDS (IC51*: AD9833BRM) 1st Lo DDS (IC301*: AD9951YSV) MAIN UNIT LOGIC UNIT TX 3rd mixer (IC1301: TA4107F) 2nd mixer (D801: HSB88WS-E) RF switch (Q101: 2SC4213) CPU (IC1302:

36、HD64F2377VFQ33V) 430 MHz pre amplifier430 MHz pre amplifier (Q451: 3SK291)(Q451: 3SK291) PA UNITPA UNIT 144 MHz power amplifier144 MHz power amplifier (Q501: RD70HVF1)(Q501: RD70HVF1) 430 MHz power amplifier430 MHz power amplifier (Q401: RD60HUF1)(Q401: RD60HUF1) DRIVER BOARD*DRIVER BOARD* HF/50 MHz

37、 power amplifierHF/50 MHz power amplifier (Q301, Q302: RD70HHF1)(Q301, Q302: RD70HHF1) 144 MHz pre amplifier144 MHz pre amplifier (Q551*: 3SK291)(Q551*: 3SK291) LPF circuitLPF circuit 430 MHz pre amplifier (Q451: 3SK291) PA UNIT 144 MHz power amplifier (Q501: RD70HVF1) 430 MHz power amplifier (Q401:

38、 RD60HUF1) DRIVER UNIT* *Located under side of the point 144 MHz pre amplifier (Q551*: 3SK291) LPF circuit HF/50 MHz power amplifiers (Q301, Q302: RD70HHF1) TOP VIEW BOTTOM VIEW SECTION 3 CIRCUIT DESCRIPTION 3 - 1 3-1 RECEIVER CIRCUITS 3-1-1 HF/50 MHz RF CIRCUIT (MAIN AND PA UNITS) The HF/50 MHz RF

39、filters pass only the desired band sig- nals and suppress undesired band signals. The HF/50 MHz RF circuit has 7 low-pass and 5 high-pass filters for speci- fied band use. The HF/50 MHz RF signals from the ANT1 connector, pass through one of 7 low-pass filters as below, the TX/RX switch (PA unit; RL

40、801), low-pass filter (PA unit; L801, L802, C801 C805) and band switch (D151), and are then applied to the MAIN unit via J101 (MAIN unit). The signals from the PA unit are applied to the RF switch (Q101) via the band switch (D113) and then passed through the 20 dB attenuator (D101, D102). The signal

41、s below 1.8 MHz are passed through the low-pass filter (L103, L104, C106, C110, C111) and then applied to the preamplifier circuit. The other band signals (1.860 MHz) are passed through the high-pass filter (L105, L109, L110, L116, L117, C108, C109, C114C116) to suppress strong signals below 1.8 MHz

42、 and then applied to the low-pass and high-pass fil- ter circuits. (1) 1.82 MHz The filtered signals from the high-pass filter are passed through the low-pass filter (L205, L207, C209C213) and then applied to the preamplifier circuits. (2) 230 MHz The filtered signals from the high-pass filter are a

43、pplied to one of 5 high-pass filters as at right above after passed through the low-pass filter (L205, L207, C209C213) and are then applied to the preamplifier circuit. (3) 3060 MHz The filtered signals from the high-pass filter are passed through another high-pass filter (L215, L217, C228, C229, C2

44、37, C238) and then amplified at the RF amplifier (Q211). The amplified signals are applied to the preamplifier circuit. 3-1-2 VHF AND UHF RF CIRCUITS (PA UNIT) The VHF and UHF RF circuits filter and amplify only the desired band signals and suppress undesired band signals. The both RF circuits have

45、preamplifiers and bandpass filters. VHF RF CIRCUIT The VHF RF signals from the ANT2 connector pass through the low-pass filters (L506, L508, L510, L601L603, C516, C519, C521, C601, C602) and antenna switching cir- cuit (D507D509). The switched signals are passed through the attenuator (D551, D552) a

46、nd bandpass filter (D553, D554, D556). The filtered signals are applied to the pream- plifier (Q551) and then passed through another bandpass filter (D558D560). The filtered signals are passed through the band switch (D462) and then applied to the 1st mixer circuit (MAIN unit) via J101 (MAIN unit).

47、UHF RF CIRCUIT The UHF RF signals from the ANT2 connector pass through the low-pass (L601L603, C601, C602) and high- pass (L413, L414, C428, C429, C431, C433) filters and then applied to the antenna switching circuit (D408D410). The switched signals are passed through the attenuator (D451, D452) and

48、 then amplified at the preamplifier (Q451) between the 2 bandpass filters (D453D456). The filtered signals are amplified at another preamplifier (IC471, pins 1, 4). 1st LO: 124.517 MHz 594.587 MHz BPF LPFHPF 1st mixer IC401 2nd LO: 124.032 MHz 2nd mixer D801 3rd mixer IC1101 ANT1 0.0360 MHz LPF ANT2

49、 60470 MHz Crystal filter FI601 124.487 MHz (WFM; 134.732 MHz) Crystal filter FI901 to WFM detector circuit (IC1401) to DSP circuit 455 kHz PA UNIT MAIN UNIT amp. Preamp. Q301 3rd LO: 438.85 kHz Crystal filter FI1101 455 kHz Used RF low-pass fi lter (PA unit) Frequency (MHz) Control signal Entrance relay Frequency (MHz) Control signal Entrance relay 0.032 MHzL1RL8811522 MHzL5RL941 24 MHzL2RL9212230 MHzL6RL821 48 MHzL3RL8413060 MHzL7