Icom IC-80 AD User manual

S-14528XZ-C1
Apr. 2009
VHF/UHF DIGITAL TRANSCEIVER

This service manual describes the latest technical
information for the IC-80AD and IC-E80D VHF/UHF
DIGITAL TRANSCEIVER 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 transceiver.
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 apply an RF signal of more than 20 dBm (100 mW) to
the antenna connector. This could damage the transceiver’s
front-end.
To upgrade quality, any electrical or mechanical parts
and internal circuits are subject to change without notice
or obligation.
MODEL VERSION TYPE OF
EMISSION Max.TX POWER (VHF/UHF)
IC-80AD
[USA]
F2D, F3E, F7W 5 W/5 W
[SEA]
[CHN]
[KOR]
[AUS]
[EXP]
IC-E80D
[EUR]
[UK]
[ITR]
[FRA]
Be sure to include the following four points when ordering
replacement parts:
1. 10-digit Icom parts numbers
2. Component name
3. Equipment model name and unit name
4. Quantity required
<ORDER EXAMPLE>
1110003491 S.IC TA31136FNG IC-E80D/80AD MAIN UNIT 5 pieces
8820001210 Screw 2438 screw IC-E80D/80AD Top cover 10 pieces
Addresses are provided on the inside back cover for your
convenience.
Icom, Icom Inc. a ated (Japan) in the United States, the United
Kingdom, German
ORDERING PARTS
1. Make sure that 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 circuits or electronic parts. An
insulated tuning 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 Standard Signal
Generator or a Sweep Generator.
7. ALWAYS connect a 50 dB to 60 dB attenuator between
the transceiver and a Deviation Meter or Spectrum
Analyzer when using such test equipment.
8. READ the instructions of test equipment throughly
before connecting a test equipment to the transceiver.
REPAIR NOTES
INTRODUCTION
CAUTION
(IC-80AD)
UNIT ABBREVIATIONS:
F=FRONT UNIT
L=LOGIC UNIT
M=MAIN UNIT
V=VCO UNIT
R=RF UNIT

TABLE OF CONTENTS
SECTION 1 SPECIFICATIONS
SECTION 2 INSIDE VIEWS
SECTION 3 DISASSEMBLY INSTRUCTION
SECTION 4 CIRCUIT DESCRIPITON
4-1 RECEIVER CIRCUITS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4-2 TRANSMITTER CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
4-3 FREQUENCY SYNTHESIZER CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
4-4 CPU (LOGIC UNIT: IC1) PORT ALLOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
4-5 VOLTAGE BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
SECTION 5 ADJUSTMENT PROCEDURE
5-1 PREPARATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5-2 FREQUENCY ADJUSTMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
5-3 IDLING CURRENT ADJUSTMENT (at 5.0 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
5-4 IDLING CURRENT ADJUSTMENT (at 7.4 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
5-5 IDLING CURRENT ADJUSTMENT (at 13.5 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
5-6 TRANSMIT POWER ADJUSTMENT (at 5.0 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
5-7 TRANSMIT POWER ADJUSTMENT (at 7.4 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
5-8 TRANSMIT POWER ADJUSTMENT (at 13.5 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
5-9 DEVIATION ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
5-10 TONE DEVIATION ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
5-11 RECEIVE SENSITIVITY ADJUSTMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
5-12 S-METER ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
SECTION 6 PARTS LIST
SECTION 7 MECHANICAL PARTS
SECTION 8 BOARD LAYOUTS
SECTION 9 BLOCK DIAGRAM
SECTION 10 VOLTAGE DIAGRAM
LOGIC UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
MAIN UNIT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3
RF UNIT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5
VCO UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-7

1 - 1
SECTION 1 SPECIFICATIONS
Version TX RX
U.S.A. 144–148, 420–450*10.495–823.990,
849–868.990,
894–999.990
S.E.A.
CHN
EXP
137–174*2, 400–470*20.495–999.990
KOR 144–146, 430–440 144–146, 430–440
AUS 144–148, 420–450*20.495–999.990
*
1Guaranteed 440–450 MHz only, *2Guaranteed 430–440 MHz only
• Mode : FM, FN-N, AM (Rx only), WFM (Rx only), DV
• No. of memory channels : 1052
(incl. 50 scan edges and 2 call channels)
• Usable temp. range : –20°C to +60°C; –4°F to +140°F
• Tuning steps : 5‡, 6.25‡, 8.33‡, 9‡, 10, 12.5, 15‡, 20,
25, 30, 50, 100, 125 and 200 kHz
DGeneral
Version TX RX
U.S.A. 144–148, 420–450*10.495–823.990,
849–868.990,
894–999.990
S.E.A.
CHN
EXP
137–174*2, 400–470*20.495–999.990
KOR 144–146, 430–440 144–146, 430–440
AUS 144–148, 420–450*20.495–999.990
*
1Guaranteed 440–450 MHz only, *2Guaranteed 430–440 MHz only
All stated specifications are subject to change without notice or obligation.
• Frequency stability : ±2.5 ppm
(–20°C to +60°C; –4°F to +140°F)
• Power supply : 10.0–16.0 V DC for external DC power,
or specified Icom’s battery pack
• Digital transmission speed: 4.8 kbps
• Voice coding speed : 2.4 kbps
• Current drain (at 7.4 V DC) :
Tx High 144 MHz 1.8 A typical
430/440 MHz 2.1 A typical
Tx Mid. 144 MHz 1.2 A typical
430/440 MHz 1.5 A typical
Tx Low 144 MHz 0.6 A typical
430/440 MHz 0.7 A typical
Tx S-Low 144 MHz 0.4 A typical
Rx Rated output 170 mA typical (FM)
215 mA typical (DV)
Power save 30 mA typical (FM)
(Duty 1:4) 38 mA typical (DV)
standby 62 mA typical (FM)
106 mA typical (DV)
• Antenna connector : SMA (50 Ω)
• Dimensions : 58.4(W)×103(H)×34.2(D) mm;
(projections not included) 2
5⁄16(W)×41⁄16(H)×111⁄32(D) in
• Weight (approx.) : 290 g; 10.3 oz (with antenna and BP-217)
DTransmitter
• Modulation system :
FM Variable reactance freq. modulation
DV (Digital) GMSK reactance freq. modulation
• Output power (at 7.4 V DC)
(Typical) : High 5.0 W, Mid. 2.5 W, Low 0.5 W,
S-Low 0.1 W
• Max. frequency deviation : ±5.0 kHz (FM wide: approx.)
±2.5 kHz (FM narrow: approx.)
• Spurious emissions : Less than –60 dBc at High/Mid.
Less than –13 dBm at Low/Slow
• Ext. mic. impedance : 2 kΩ
DReceiver
• Receive system :
Except WFM Double-conversion superheterodyne
WFM Triple-conversion superheterodyne
• Intermediate frequencies :
1st 61.65 MHz/59.25 MHz (WFM only)
2nd 450 kHz/13.35 MHz (WFM only)
3rd 1.95 MHz (WFM only)
• Sensitivity (except spurious points):
FM
(1 kHz/3.5 kHz Dev.; 12 dB SINAD)
1.625–29.995 MHz 0.4 μV typ.
30.000–75.995 MHz 0.25 μV typ.
76.000–117.995 MHz 0.25 μV typ.
118.000–173.995 MHz 0.14 μV typ.
174.000–259.995 MHz 0.32 μV typ.
260.000–349.995 MHz 0.32 μV typ.
350.000–469.995 MHz 0.16 μV typ.
470.000–599.995 MHz 0.32 μV typ.
600.000–999.990 MHz 0.56 μV typ.
WFM
(1 kHz/52.5 kHz Dev.; 12 dB SINAD)
76.000–108.000 MHz 1 μV typ.
175.000–221.995 MHz 1.8 μV typ.
470.000–770.000 MHz 2.5 μV typ.
AM
(1 kHz/30% Mod.; 10 dB S/N)
0.495–4.995 MHz 1.3 μV typ.
5.000–29.995 MHz 0.56 μV typ.
118.000–137.000 MHz 0.5 μV typ.
222.000–246.995 MHz 0.79 μV typ.
247.000–329.995 MHz 1 μV typ.
DV
(PN9/GMSK 4.8ksps; BER 1%)
VHF (Amateur band only) 0.22 μV typ.
UHF
(Amateur band only) 0.22 μV typ.
• Audio output power : More than 300 mW at 10% distortion
(at 7.4 V DC) with an 8 Ωload
• Selectivity :
FM (Wide), AM More than 50 dB
FM (Narrow), DV More than 45 dB
WFM More than 300 kHz/–3 dB
Less than 700 kHz/–20 dB
• Ext. speaker connector : 3-conductor 3.5(d) mm; (1⁄8˝)/8 Ω
• Spurious and image rejection ratio :
VHF More than 60 dB
UHF More than 50 dB
(Intermediate freq.; More than 60 dB)
• Squelch Sensitivity (except spurious points):
FM (1 kHz/3.5 kHz Dev.)
1.625–29.995 MHz 0.4 μV typ.
30.000–75.995 MHz 0.25 μV typ.
76.000–117.995 MHz 0.25 μV typ.
118.000–173.995 MHz 0.14 μV typ.
174.000–259.995 MHz 0.32 μV typ.
260.000–349.995 MHz 0.32 μV typ.
350.000–469.995 MHz 0.16 μV typ.
470.000–599.995 MHz 0.32 μV typ.
600.000–999.990 MHz 0.56 μV typ.
WFM (1 kHz/52.5 kHz Dev.)
76.000–108.000 MHz 1 μV typ.
175.000–221.995 MHz 1.8 μV typ.
470.000–770.000 MHz 2.5 μV typ.
AM (1 kHz/30% Mod.)
0.495–4.995 MHz 1.3 μV typ.
5.000–29.995 MHz 0.56 μV typ.
118.000–137.000 MHz 0.5 μV typ.
222.000–246.995 MHz 0.79 μV typ.
247.000–329.995 MHz 1 μV typ.
<For IC-80AD>
<For IC-E80D>
‡
Selectable depending on the operating
frequency band.
(unit: MHz)
(unit: MHz)

S-14528XZ-C1
© 2009 Icom Inc.

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