Instruction/ maintenance manual of the product IC-V8000 Icom
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SER VICE MANU AL VHF FM TRANSCEIVER 1-1-32, Kamiminami, Hirano-ku, Osaka, 547-0003, Japan S-13815IZ-C1 © 2002 Icom Inc..
INTRODUCTION DANGER This service manual describes the latest service information for the IC-V8000 VHF FM TRANSCEIVER at the time of pub- lication. ORDERING P ARTS Be sure to include the following four points when ordering replacement parts: 1. 10-digit order numbers 2.
SECTION 1 SPECIFICA TIONS SECTION 2 INSIDE VIEWS SECTION 3 DISASSEMBL Y AND OPTION INSTRUCTIONS SECTION 4 CIRCUIT DESCRIPTION 4-1 RECEIVER CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 - 1 ‘ ‘ GENERAL • Frequency coverage : *Specifications Guaranteed: 144–148 MHz only • T ype of emission : FM (F2D / F3E) • Frequency stability : ± 10 ppm (–10˚C to +60˚C; +14˚F to +140˚F) • T uning steps : 5, 10, 12.5, 15, 20, 25, 30 or 50 kHz • Antnna connector : SO-239 (50 Ω ) • Power supply requirement : 13.
SECTION 2 INSIDE VIEWS 2 - 1 • MAIN UNIT • LOGIC BOARD Reference oscillator (X1: CR-659) VCO circuit Antenna switching circuit (D12, D27: XB15A407, D19: XB15A308, D16: HVU131TRF) AF power amplifie.
SECTION 3 DISASSEMBL Y AND OPTION INSTRUCTIONS 3 - 1 Cover MP10 Front panel Chassis MP9 MP6 MP15 J5 (MF1) J6 (SP7) Chassis Main unit MP6 MP6 MP7 MP4 J1 A • REMOVING THE COVER 1 Unscrew 4 screws, MP10. 2 Remove the cover in the direction of the arrow .
4 - 1 SECTION 4 CIRCUIT DESCRIPTION 4-1 RECEIVER CIRCUITS 4-1-1 ANTENNA SWITCHING CIRCUIT (MAIN UNIT) Received signals passed through the low-pass filter (L44, L47, L48, L51, C190, C197, C203, C208, C210, C217, C218). The filtered signals are applied to the 1/4 λ type antenna switching circuit (D16, D19).
4 - 2 The AF signals are applied to the AF power amplifier circuit (IC9, pin 1) to obtain the specified audio level. The amplified AF signals, output from pin 4, are applied to the internal speaker (CHASSIS UNIT ; SP1) via the speaker jack (J6) when no plug is connected to the external speaker jack (J1).
4 - 3 4-3 PLL CIRCUITS 4-3-1 PLL CIRCUIT (MAIN AND LOGIC UNITS) A PLL circuit provides stable oscillation of the transmit fre- quency and receive 1st LO frequency . The PLL output com- pares the phase of the divided VCO frequency to the refer- ence frequency .
4 - 4 Pin Port Description number name Pin Port Description number name 4-5 PORT ALLOCA TIONS 4-5-1 CPU (LOGIC UNIT : IC7) 1 9 11 12 14 15 16 17 19 20 21 22 23 26 32–35 36–39 40 41 44 45 47 49–5.
4 - 5 Pin Port Description number name 2 3 10 11 , 2 3 14 15 22 MOD SQLA TT T1 T2, T3 SQLIN DTC FC Outputs transmit devetion control sig- nal. Outputs attenuator control signal. • Outputs tunable bandpass filter con- trol signal while receiving. • Outputs TX power control signal while transmitting.
S.=Surface mount IC1 1 1 10002860 S.IC T A75S393F (TE85R) IC2 1 130004200 S.IC TC4S66F (TE85R) IC3 1 1 10005340 S.IC NJM12902V -TE1 IC4 1 1300091 10 S.IC S-80942ANMP-DD6-T2 IC5 1 130009680 S.IC HN58X2432TI IC6 1 130008090 S.IC BU4066BCFV -E1 IC7 1 140010400 S.
5 - 2 S.=Surface mount C5 4030007090 S.CERAMIC C1608 CH 1H 470J-T -A C7 4030006860 S.CERAMIC C1608 JB 1H 102K-T -A C8 4030006900 S.CERAMIC C1608 JB 1H 103K-T -A C9 4030006860 S.CERAMIC C1608 JB 1H 102K-T -A C10 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A C1 1 4030006860 S.
S.=Surface mount D10 1750000710 S.V ARICAP HVC350BTRF D1 1 1750000710 S.V ARICAP HVC350BTRF D12 1710001060 DIODE XB15A407 D13 1750000710 S.V ARICAP HVC350BTRF D14 1790000980 S.DIODE MA742 (TX) D15 1750000550 S.DIODE 1SS355 TE-17 D16 1710000870 S.DIODE HVU131TRF D17 1790000980 S.
5 - 4 S.=Surface mount R101 7030003720 S.RESISTOR ERJ3GEYJ 224 V (220 k Ω ) R103 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 k Ω ) R104 7030003740 S.RESISTOR ERJ3GEYJ 334 V (330 k Ω ) R105 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 k Ω ) R106 7030003560 S.
S.=Surface mount C105 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A C106 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A C108 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A C109 4030006900 S.CERAMIC C1608 JB 1H 103K-T-A C1 1 1 4030009990 S.CERAMIC C1608 CH 1H 200J-T -A C1 12 4030007100 S.
6 - 1 SECTION 6 MECHANICAL P ARTS AND DISASSEMBL Y REF . NO. ORDER NO. DESCRIPTION QTY . [CHASSIS P ARTS] [MAIN UNIT] W6 8900010980 Cable OPC-1 131 1 MP1 8410002380 2399 Heatsink 1 MP2 8510014470 2509 VCO case 1 MP3 8510014460 2509 VCO cover 1 REF . NO.
INTRODUCTION DANGER This service manual describes the latest service information for the IC-V8000 VHF FM TRANSCEIVER at the time of pub- lication. ORDERING P ARTS Be sure to include the following four points when ordering replacement parts: 1. 10-digit order numbers 2.
SER VICE MANU AL VHF FM TRANSCEIVER 1-1-32, Kamiminami, Hirano-ku, Osaka, 547-0003, Japan S-13815IZ-C1 © 2002 Icom Inc..
An important point after buying a device Icom IC-V8000 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Icom IC-V8000 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Icom IC-V8000 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Icom IC-V8000 you will learn all the available features of the product, as well as information on its operation. The information that you get Icom IC-V8000 will certainly help you make a decision on the purchase.
If you already are a holder of Icom IC-V8000, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Icom IC-V8000.
However, one of the most important roles played by the user manual is to help in solving problems with Icom IC-V8000. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Icom IC-V8000 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
