Esoteric I-03 User Manual

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.

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.

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.

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. 

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.

e

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

e

 The input terminal might be set to be skipped. Assign the input 

terminal a name other than “*skip” (page 17).

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).

e

 The  volume  value  exceeds  the  maximum  total  gain  value  of 

the  volume  control.  Lower  the  volume  until  the  display  stops 
blinking.

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
e

 There might be a ¥/^ short in a speaker cable. Turn the 

unit off, and then check the cables.

Check if the volume is too high
e

 Lower the volume.

Check if the unit is too warm
e

 The  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.