Harman Kardon ADP 303 (serv.man3) User Manual / Operation Manual ▷ View online
Troubleshooting Guide
12
SYMTOM
The unit fails to turn on when the
POWER switch is pressed.
POWER switch is pressed.
No sound.
Sound “hums.”
Sound output level to either one or both of
the rear surround speakers is lower than
other speakers.
the rear surround speakers is lower than
other speakers.
No sound from the center speaker.
Whole sound level is low, even though the
volume is increased on the amplifier.
volume is increased on the amplifier.
Noise from nearby TV or tuner.
SOLUTION
• Firmly plug in the power cord.
• Connect the cords properly. If the problem
persists, the cords may be defective.
• Select the proper input mode
(RF, OPT or COAX).
• Select the”6 channel Direct” mode on
the AVR80 or receiver.
• Firmly connect the audio plugs.
If the problem persists, the cords may be
defective.
defective.
• Increase the level.
• Select the SMALL or LARGE position.
• Increase the level.
• Move this unit further away from
the affected equipment.
If your trouble cannot be resolved with the actions listed in the following table, immediately unplug the power cable and contact your
dealer or authorized Harman Kardon Service Depot.
dealer or authorized Harman Kardon Service Depot.
CAUSE
• Power cord is not plugged in or
is not completely inserted.
• Incorrect input or output cord
connections.
• Improper input mode selection.
• Improper input mode selection
on the amplifier.
• Incorrect cord connections.
• Sound output level to either one or
both of the rear surround
speakers is decreased.
speakers is decreased.
• The setting of CENTER speaker
is at the none position.
• Volume level adjustment on this
unit is low.
• This unit is too close to the affected
equipment.
All specifications are subject to change without notice.
Dolby, Dolby Digital, ProLogic and AC-3 are registered trademarks of Dolby
Laboratories Licensing Corp.
Laboratories Licensing Corp.
24093_ADP 303 Eng. 27/02/1998 10:34 Side 13
13
Declaration of Conformity
We, Harman Kardon Europe A/S
Kongevejen 194B
DK-3460 Birkerød
DENMARK
declare in own responsibility, that the
product described in this owner's
manual is in compliance with
technical standards:
EN 55 013/6.1990
EN 55 020/6.1988
EN 55 022/6.1993
EN 60 065/1994
EN 60 555-2-3/1987/88
Steen Michaelsen
Harman Kardon Europe A/S
Birkerød, DENMARK, 3/96
24093_ADP 303 Eng. 27/02/1998 10:34 Side 14
Printed in Japan
Part #1111-ADP303E
267 J851310
POWER
Delay Time
0
5
10
15
Bypass
RF
Optical
Coaxial
Test
Mute
24093_ADP 303 Eng. 27/02/1998 10:34 Side 15
Harman Kardon ADP303
Dolby
®
Digital Decoder
Owner’s Manual
Volume
Test
Mute
LEFT
CENTER
RIGHT
LEVEL TRIM
SUB. W
L • SURROUND • R
24093_ADP 303 Eng. 27/02/1998 10:34 Side 16
