104 BASIC OPERATION ReceivingMake sure a charged battery pack or alkaline batteries are in-stalled. (pgs. 1, 46)q Push [POWER] for 2 sec. to turn power ON.w Push [↕] to set the desired audio level.• One of the LCDs shows the volume level while setting. See thenext page for details.e Push [↔] to select an operating band. (p. 7)r Rotate [DIAL] to set an operating frequency. (p. 8)t Set the squelch level.• While pushing [SQL], rotate [DIAL].• The first click of [DIAL] indicates the current squelch level.• “LEVEL1” is loose squelch and “LEVEL9” is tight squelch.• “AUTO” indicates automatic level adjustment with a noise pulsecount system.• Push and hold [SQL] to open the squelch manually. (default be-haviour; p. 41)y When a signal is received:➥ Squelch opens and audio is emitted from the speaker.➥ The S indicators show the relative signal strength.➥ The busy indicator appears when receiving a signal or when thesquelch is open.q Power switchw Set volumee Select band t Push for settingthe squelch(Push to monitor)r Set frequencyt Set the squelchlevelFor non-U.S.A. versionsIf the display mode selection is set as ‘manual’ (p. 43) withthe color LCD ON, the receiver may not be able to turn it-self OFF when the battery becomes exhausted.Replace the battery and turn power OFF in this case.For U.S.A. versionThe U.S.A. version automatically turns itself OFF when thereceiver detects that battery replacement is necessary. Re-place the battery or charge the battery pack in this case.

supplied accessories

ACCESSORY ATTACHMENT

Panel description

Function display

PANEL DESCRIPTION .................. 2

VFO and memory channels

Setting a frequency

FREQUENCY AND CHANNEL SETTING ....................................... 7

Receiving

Setting volume level

Monitor function

Display backlighting

General

Programming after selection

Memory bank selection

Memory names

Scan types

Full/band/programmed scan

Memory (bank) scan

Selecting scan edges

Skip channel setting

Frequency skip function

Priority watch types

Priority watch operation

Tone squelch operation

Pocket beep operation

Tone scan

duplex operation

offset frequency

BAND SCOPE

TV operation

ATV operation

DIRECTION FINDING

Set mode

Dial select step

Beep tones

Power saver

Dial speed acceleration

Display mode selection

Display brightness

Cloning function

Battery cautions

TROUBLESHOOTING

quick reference

QUICK REFERENCE ................. 57

Icom COMMUNICATIONS RECEIVER IC-R3 Instruction Manual

COMMUNICATIONS RECEIVER IC-R3

VCO UNIT

FM-TV UNIT

LOGIC unit

pll circuits

FM-TV CIRCUIT

POWER SUPPLY CIRCUITS

PREPARATION

PLL ADJUSTMENT

RECEIVER ADJUSTMENTS

TFT LCD AND FM-TV UNIT ADJUSTMENT

VCO AND RF-B UNIT

bottom view

PART LIST

VOLTAGE DIAGRAM

BOARD LAYOUTS

other features

specifications