Esoteric I-03 owner manual Troubleshooting, Protection Circuit

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Troubleshooting

If you experience any problems with the unit, please take a moment to look through this chart and see if you can solve the problem yourself before you call your dealer or ESOTERIC customer service/ technical support.

Moreover, the problem might be caused by something other than this unit. Confirm that connected devices are also being used properly.

No power.

e Check the connection to the AC power source. Check and make sure the AC source is not a switched outlet and if it is, the switch is turned on. Make sure there is power to the AC outlet by plugging another item such as a lamp or a fan.

Remote control does not work.

e Press the POWER button of the main unit to turn it on.

e Be sure that batteries have been installed. If the batteries are exhausted, change the batteries (Page 7).

e Use the remote control unit within the effective range (23 feet/7 m) and point it toward the remote sensor on the front panel.

e Make sure that there are no obstacles between the remote control unit and the main unit.

e If a fluorescent light is near the unit, turn it off.

Other units with remote controls operate incorrectly.

e Note that other units with remote controls may operate incorrectly because of infrared light “overspill” when you operate the remote control of this unit.

There is no sound or only a very low-level sound is heard. e Adjust the volume by turning the VOLUME knob.

e Select the proper input source by turning the INPUT knob. e If the muting is engaged, press the MUTING button.

e Check that the speakers and components are connected properly.

e Check the operation of the connected component.

e The connected speakers will make no sound when headphones are plugged into this unit. Disconnect the headphones.

e When you use this unit as a pre amplifier, set the Pre out setting to “ON1” or “ON2” (page 16).

e The connected speakers will make no sound when the Pre out setting is set to “ON2” (page 16).

e The connected speakers will make no sound when the protection circuit is activated. Check the items on the right.

“AMP ERR!” blinks on the display.

e The protection circuit is activated. Check the items on the right.

Cannot select the input terminal.

e The input terminal might be set to be skipped. Assign the input terminal a name other than “*skip” (page 17).

VOLUME knob/buttons do not work.

e When you set the RCA2 terminals to “THRU” (signal through terminals), the VOLUME knob/buttons do not work on their terminals (page 16).

e When you set the PRE OUT terminals to “REC”, the VOLUME knob/ buttons do not work on their terminals (page 16).

Volume display blinks.

e The volume value exceeds the maximum total gain value of the volume control. Lower the volume until the display stops blinking.

Since this device uses a microcontroller, external noise and other interference can cause the unit to malfunction. If this occurs, turn the power off and restart operations after waiting for about one minute.

Protection Circuit

This unit has a built-in protection circuit.

“AMP ERR!” blinks on the display when the protection circuit is activated. In this case, check the following items:

Check the speaker cables

eThere might be a ¥/^ short in a speaker cable. Turn the unit off, and then check the cables.

Check if the volume is too high

eLower the volume.

Check if the unit is too warm

eThe protection circuit might be activated because the temperature inside the unit has become too hot.

Turn the unit off, and wait to let it cool down.

Always be sure to allow adequate space for airflow around the unit when in operation.

If the protection circuit continues to be activated, please contact your dealer or an ESOTERIC authorized service center.

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Contents D01141820A Integrated AmplifierFor U.S.A Important Safety InstructionsWhat’s in the box ContentsMaintenance Placement of the unitBefore Use Input PowerVolume Identifying the Parts Main UnitIdentifying the Parts Remote Control Unit Battery Installation Battery Replacement Remote Control UnitPrecautions concerning batteries Audio ConnectionsAudio OUT Analog audio output terminals PRE OUT GND terminal Signal GNDPower cord receptacle Analog audio input terminals InputsRight speaker How to connectSpeaker Connections Speaker cablesPower amplifier Using speaker cables with bare wireUsing speaker cables with spades Using speaker cables with banana plugsTurning the unit off Basic OperationXLR2 RCA1 RCA2 RCA3/PHONO Muting Listening with headphonesDimmer/Muting Dimmer+18.0 dB Balance and Input Level SettingsReturn to the previous display Exit setup mode L6.0 dB Output level Display LevelMM/MC Additional SettingsChanging settings RCA3ON2 Available setup items and settingsOFF ON1Phono LineChanging the terminal name 30m Returning to factory settings Display SetupAuto display darkening Display FLaOFF 15mProtection Circuit TroubleshootingSpecifications Rear Panel Layout Disposal of electrical and electronic equipment For European customersDisposal of batteries and/or accumulators China RoHS Teac Corporation