The 3.3 mm connector is located on the front of the E/90
Energizer/Amplifier.
8.
Turn sound source on.
9.
Switch the power switch on the E/90 Energizer/Amplifier to “ON”. The LED
on the front panel will illuminate green.
NOTE:
If LED does not illuminate, recheck set-up instructions. If you hae followed
the steps correctly and the LED still does not illuminate, call 1-800-KOSS for
service.
10.
Adjust volume level on sound source as required.
11.
Slowly turn up Audio Level controls on the E/90 Amplifier until sound can be
heard from the sterophones.
12.
Turn Acoustic Level coiunterclockwise again and position stereophones on
your head.
13.
Adjust Acoustic Level to desired level.
TROUBLE SHOOTING GUIDE
No Power/No Sound
• Check AC power outlet.
• Check batteries for proper placement and power.
• Check to see that sound source and E/90 Energizer/Amplifier are “ON”.
• Check Acoustic Level control on E/90. Turn clockwise.
• Re-check set-up instructions.
LED Does Not Light Or Is A Solid Red Color
• Check battery power. The LED on the E/90 Energizer/Amplifier will flash red as
batteries run down. The LED will become a solid red when batteries are dead. If
battery voltage is too low the LED will not come on.
Hum Heard Through The Stereophone