IC-R9500_serv (1).pdf

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1、S-14323XZ-C1-q Oct. 2007 COMMUNICATIONS RECEIVER This service manual describes the latest service information for the IC-R9500 COMMUNICATIONS RECEIVER at the time of publication. NEVER connect the transceiver to an AC outlet or to a DC power supply that uses more than specified. This will ruin the t

2、ransceiver. DO NOT apply an RF signal of more than 20 dBm (100 mW) to the antenna connector. This could damage the receivers front end. To upgrade quality any electrical or mechanical parts and internal circuits are subject to change without notice or obligation. MODELVERSIONFREQUENCY COVERAGE (MHz)

3、 IC-R9500 USA 0.005821.999999, 851.000000866.999999, 896.0000003335.000000 FRA 0.005000029.999999, 50.20000051.200000, 87.500000108.000000, 144.000000146.000000, 430.000000440.000000, 1240.0000001300.000000 USA-01 0.0053335.000000 EUR UK CAN EXP AUS CHN Be sure to include the following four points w

4、hen ordering replacement parts: 1. 10-digit order numbers 2. Component part number and name 3. Equipment model name and UNIT name 4. Quantity required 1110006750 S.IC TK14570L IC-R9500 RF-A UNIT 5 pieces 8820001210 Screw 2844 screw IC-R9500 CHASSIS 10 pieces Addresses are provided on the inside back

5、 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. ORDERING PARTS 1. Make sure a problem is internal before disassembling the receiver. 2. DO NOT open

6、the receiver until the receiver 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 parts. An insulated tuning tool MUST be used for all adjustments. 5. DO NOT keep power ON for a long time w

7、hen the receiver is defective. 6. READ the instructions of test equipment throughly before connecting equipment to the receiver. REPAIR NOTES INTRODUCTIONCAUTION CONTENTS SECTION 1 SPECIFICATIONS SECTION 2 INSIDE VIEWS SECTION 3 CIRCUIT DESCRIPITON 3-1 RECEIVER CIRCUITS. . . . . . . . . . . . . . .

8、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 3-2 FREQUENCY SYNTHESIZER CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 3-3 LOGIC CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9、. . . . . . . . . . . . . . . . . . . . . 3-5 3-4 POWER SUPPLY CIRCUITS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 3-5 PORT ALLOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10、. . . . . 3-5 SECTION 4 ADJUSTMENT PROCEDURES 4-1 PREPARATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 4-2 EXT. S-METER AND REFERENCE FREQUENCY ADJUSTMENTS. . . . . . . . . . . . . . . . . . . . 4-3 4-3 VCO ADJUSTME

11、NTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 4-4 RECEIVE ADJUSTMENT (HF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 4-5 RECEIVE ADJUSTMENT (V/U) . . . . . . . . . . .

12、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6 4-6 RECEIVE ADJUSTMENT (V/U1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7 4-7 RECEIVE ADJUSTMENT (V/U2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13、 . . . . . . . . . . . . . . . 4-14 4-8 RECEIVE ADJUSTMENT (TV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21 4-9 RECEIVE ADJUSTMENT (WFM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22 SECTI

14、ON 5 PARTS LIST SECTION 6 MECHANICAL PARTS AND DISASSEMBLY SECTION 7 BOARD LAYOUTS LOGIC UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1 MAMORY BOARD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

15、. . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1 ANT, BPF, MIX1, MIX2 UNITS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3 RF-A, RF-B UNITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16、 . . . . . . . . . . 7-5 VCO-AC, VCO2, FIL1/2 BOARDS AND PLL UNIT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7 SW-AC, VR-AF, SENSOR, TENKEY, LED, DISPLAY BOARDS . . . . . . . . . . . . . . . . . . . . . . 7-9 JACK BOARD AND CONNECT-A/B OSC UNITS . . . . . . . . . . . . . . .

17、. . . . . . . . . . . . . . . . . . . 7-11 MAIN, SCOPE/TV, DC-DC UNITS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13 i ii CONTENTS (continued) SECTION 8 WIRING DIAGRAM SECTION 9 BLOCK DIAGRAM SECTION 10 SCHEMATIC DIAGRAM LOGIC UNIT AND MAMORY BOARD

18、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1 MAIN UNIT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-6 VCO-AC, VCO2, FIL1/2 BOARDS AND PLL UNIT. . . . . . . . . . . .

19、 . . . . . . . . . . . . . . . . . . . . . 10-10 ANT, BPF, RF-A, RF-B, MIX1, MIX2 UNITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-15 SW-AC, VR-AF, SENSOR, TENKEY, LED, DISPLAY, JACK BOARD AND CONNECT-A/B UNITS . . . . . . . . . . . . . . . . . . . . . . . . . .

20、 . . . . . . . . . . . . . 10-21 OSC, SCOPE/TV, DC-DC, REG UNITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-23 1 - 1 SECTION 1 SPECIFICATION General Frequency coverage (unit: MHz): USA0.005000821.999999, 851.000000866.999999, 896.0000003335.000000 France0.

21、005000029.999999, 50.20000051.200000, 87.500000108.000000, 144.000000146.000000, 430.000000440.000000, 1240.0000001300.000000 Europe, U.K., Canada, EXP, Australia, China 0.0050003335.000000 Operating mode: USB, LSB, CW, FSK, AM, FM, WFM, P25 Number of memory channels: 1220 (1000 regular channels, 10

22、0 auto memory write channels, 100 skip channels, 20 scan edge channels) Antenna connector: Type-N? 2 (antenna impedance: 50 ? ), SO-239? 1 (antenna impedance: 50 ? ), Phono (RCA)? 1 (antenna impedance: 500 ? ) Operating temperature range: 0C to +50C; +32F to +122F Frequency stability: Less than 0.05

23、 ppm(approx. 5 min. after from turn the main power, I/O, ON, 050C; 32122F) Frequency resolution: 1 Hz Power supply requirement: 100 V, 120 V, 230 V, 240 V AC Power consumption: ReceiveStand-byLess than 100 VA Max. audioLess than 100 VA Dimensions (projections not included): 424? 149? 340 mm; 1611/16

24、? 57/8? 133/8in Weight: Approx. 20 kg; 44 lb ACC connector: 8-pin DIN connector DATA IN connector: 8-pin DIN connector Display*: 7-inch(diagonal)TFT color LCD (800? 480) EXT-DISPLAY connector: D-sub 15S RS-232C connector: D-sub 9-pin VIDEO IN connector: Phono (RCA) VIDEO OUT connector: Phono (RCA) S

25、PEECH OUT connector: Phono (RCA) LINE OUT connector: Phono (RCA) USB connector: USB (Universal Serial Bus)1.1/2.0 CI-V connector: 2-conductor 3.5 (d) mm (1/8? ) ANT-SEL connector: 3-conductor 3.5 (d) mm (1/8? ) DET OUT connector: 3-conductor 3.5 (d) mm (1/8? ) EXT-SP connectors: 2-conductor 3.5 (d)

26、mm (1/8? )/8 ? REC REMOTE connector: 3-conductor 3.5 (d) mm (1/8? )? 2 (Front and rear panels) REC OUT connector: 3-conductor 3.5 (d) mm (1/8? ) PHONES connector: 3-conductor 3.5 (d) mm (1/8? ) ? 1 - 2 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

27、? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? TOP VIEW CONNECT-B UNIT CONNECT-A UNIT SCOPE/TV UNIT OSC UNIT Rear side DC-DC UNIT LOGIC UNIT MAIN U

28、NIT 2 - 1 SECTION 2 INSIDE VIEWS R9500 A3.indd 12-132007/02/28 19:15:01 BOTTOM VIEW RF-B UNIT MIX1 UNIT MIX2 UNIT ANT UNIT BPF UNIT Rear side PLL UNIT RF-A UNIT VCO-A BOARD VCO-B BOARD VCO-C BOARD 2 - 2 R9500 A3.indd 14-152007/02/28 19:15:02 3 - 1 SECTION 3 CIRCUIT DESCRIPTION 3-1 RECEIVER CIRCUITS

29、BPF UNIT The received signals from the “HF ANT1” or “HF ANT2” connector (0.00529.999 MHz) are passed through the attenuators and each BPFs for the frequency coverage. The fi ltered The received signals are applied to the RF-A UNIT (Refer to “RF-A UNIT”). ANT UNIT The received signals from the ANT1 c

30、onnector (301150 MHz) are amplified or attenuated by pre-amplifier/attenuator. The amplifi ed signals are applied to the RF-B UNIT (Refer to “RF-B UNIT”). The received signals from the ANT2 connector (1150 3335 MHz) are amplified or attenuated by pre-amplifier/ attenuator. The amplifi ed/attenuated

31、signals are amplifi ed by one or two RF amplifi ers via band switches, LPFs and HPFs. The amplifi ed signals are applied to the RF-B UNIT. (Refer to “RF-B UNIT”) RF-A UNIT The received signals from the BPF UNIT are amplifi ed and fi ltered, then applied to the 1st mixer (IC130), and mixed with 1st L

32、O signals from the PLL UNIT to generate 1st IF signal. The generated 1st IF signal is fi ltered by one of 1st IF fi lters ( BW=3 kHz, 6 kHz, 15 kHz, 50 kHz or 240 kHz) to remove unwanted signals. The filtered 1st IF signal is amplified by 1st IF amplifi er, then applied to the 2nd mixer and mixed wi

33、th 2nd LO signals from the PLL UNIT to generate 2nd IF signal. The generated 2nd IF signal is amplifi ed by 2nd IF amplifi er, and passed through the 2nd IF fi lter (BW=50kHz) to remove unwanted signals. The filtered 2nd IF signal is applied to the 3rd mixers (D1250 and D1251), and mixed with 3rd LO

34、 signals from the PLL UNIT to generate 3rd IF signal. The generated 3rd IF signal is amplifi ed by 3rd IF amplifi er (IC1000), then applied to the MAIN UNIT for demodulation. The 2nd IF signal from the MIX2 UNIT is filtered by one of 2nd IF filters (for BW=3 kHz, 6 kHz, 15 kHz, 50 kHz or 240 kHz) to

35、 remove unwanted signals. The filtered 2nd IF signal is amplified by 2nd IF amplifier, then applied to the 3rd mixer, and mixed with 3rd LO signals from the PLL UNIT to generate 3rd IF signal. The generated 3rd IF signal is amplifi ed by 3rd IF amplifi er, and passed through the 3rd IF fi lter (BW=5

36、0kHz) to remove unwanted signals. The filtered 3rd IF signal is applied to the 4th mixers (D1250 and D1251), and mixed with 4th LO signals from the PLL UNIT to generate 4th IF signal. The generated 4th IF signal is amplifi ed by 4th IF amplifi ers, then applied to the MAIN UNIT for demodulation. In

37、WFM mode, the IF signal from the 3rd IF amplifier is amplifi ed by two 3rd IF amplifi ers, and fi ltered by two 3rd IF fi lters (BW=230 kHz), then applied to the IF IC (IC1031) for FM-demodulation. The demodulated AF signals are applied to the MAIN UNIT via AF switch (IC1312). IC130D600 D1250 D1251

38、3rd IF signal to the MAIN UNIT AF signal to the MAIN UNIT MIX1 UNIT MIX2 UNIT BPF UNIT RX DIAGRAM ANT UNIT RF-A UNIT RF-B UNIT HF ANT1 0.00529.999 MHz HF ANT2 0.00529.999 MHz ANT1 301150 MHz ANT2 1150 3335 MHz amp. BPF amp. BPF WFM DEMODULATION WFM Det. amp. BPF amp. BPF amp. BPF IC21 IC301 90 amp.

39、BPF amp. BPF amp. amp. amp. amp. BPF BPF BPF BPF BPF BPF BPF BPF BPF 0.005 29.999 MHz AF signals to the MAIN UNIT 3rd IF signal from the 3rd IF amp. IC1031 BPF CERAMI C IF AMP Q1021 IF AMP Q1011 BUFF IC1030 IF AMP BPF CERAMIC WFM DET IC1312 SELECT SW BW=230KBW=230K AF DEMODULATOR CIRCUITS (WFM) RF-B

40、 UNIT The received signals from the ANT-2 connector (1150 3335 MHz) are amplifi ed and fi ltered, then applied to the 1st mixer (MIX1 UNIT; IC301) via band SW (IC1202). (Refer to “MIX1 UNIT”) The received signals from the ANT-1 connector (30 1150 MHz) are filtered by one of BPFs for the frequency co

41、verage to remove unwanted signals. The filtered The received signals are amplified by RF amplifiers, filtered by band fi lters, then applied to the 1st mixer (MIX1 UNIT; IC301) via band switch (IC1202). (Refer to “MIX1 UNIT”) 3 - 2 MIX1 UNIT The received signals from the RF-B UNIT are mixed with 1st

42、 LO signals from the PLL UNIT, to generate 1st IF signal. The generated 1st IF signal is applied to the RF-B UNIT again, then fi ltered by 1st IF fi lter, and amplifi ed by 1st IF amplifi er before being applied to the 2nd mixer (MIX2 UNIT; IC21). (Refer to “MIX2 UNIT”) MIX2 UNIT The 1st IF signal f

43、rom the RF-B UNIT is converted into the 2nd IF signal at 2nd mixer (IC21) by mixing with 2nd LO signal (2LO) from PLL UNIT. The converted 2nd IF signal is applied to the RF-A UNIT. (Refer to “RF-A UNIT ”) CONNECT-B UNIT (AF AMPLIFIER CIRCUITS) The AF signals from the MAIN UNIT are applied to the AF amplifi er (IC41) via the squelch gate (Q91). Th