DIGITAL LOUNGE (serv.man13) - Harman Kardon Audio Service Manual (repair manual). Page 3

If you experience any of the following difficulties
while using the system, use this troubleshooting
guide to help you remedy the problem. 
Should any problem persist, consult your author-
ized Harman Kardon dealer.

No power.
• Is the power cord firmly plugged into the

power outlet?

• One of the safety mechanisms may be operat-

ing. In this event, unplug the player from the
power outlet briefly and then plug it in again.

No picture.
• Check that the system is connected correctly

and securely.

• The video cable may be damaged. Replace it

with a new one.

• Make sure the system is connected to a video

input on the TV (see page 12).

• Make sure the TV is turned on.

• Make sure the correct video input on the TV is

selected for viewing with this system.

Noise (interference) appears in 
the picture.
• Clean the disc.

• If video from this system has to go through

your VCR to get to your TV, the copy-protection
applied to some DVD programs could affect
picture quality. If you still experience pro blems
after checking your connecti ons, please try con-
necting your DVD system directly to your TV’s
S-Video input.

The aspect ratio of the screen is wrong
(picture vertically expanded) when you
play a wide picture by the player or an
external source connected to the screen
even though you set “TV DISPLAY” in the
SETUP menu to "Auto".
• If you connect the system or the external

source with the SCART cable, connect directly
to the TV. Otherwise the autoswitch function of
the aspect ratio for the TV may not work.

• If the TV is not connected with a SCART cable

to the DL (as recommended) or the external
source, or if the autoswitch function does not
work you should turn the TV to "Fill All".

There is no sound or volume is very low
• Check that the speakers and components are

connected correctly and securely.

• Make sure that you have selected the correct

source on the system.

• Press MUTE on the remote control, if the

words MUTE ON are blinking on the front
panel display.

• The protective circuitry has been activated

because of a short circuit. Turn off the system,
eliminate the short circuit problem and turn on
the power again.

• The audio interconnect is damaged. Replace it

with a new one.

• The system is in pause mode or in slow-motion

play mode, or fast forward or fast reverse. 
Press 

N

to return to normal play mode.

• Check the speaker settings (see page 31).

The left and right channels are 
unbalanced or reversed.
• Check that the speakers and components are

connected correctly and securely.

Severe hum or noise is heard.
• Check that the speakers and components are

connected securely.

• Check that the connecting cords are away from

a transformer or motor and at least 3 meters
away from fluorescent light.

• Move your TV away from the audio compo-

nents.

• The plugs and jacks are dirty. Wipe them with a

cloth slightly moistened with alcohol.

• Clean the disc.

• Disconnect antenna cables from external

sources (also PC) connected to the screen or
system. If hum disappears use an antenna
transfomer between antenna and source.

• If PC is connected to the system disconnect the

Audio and Video cables. If hum disappears use
an audio transformer between PC audio out
and system input. If hum persists unplug PC
from your system and ask your local dealer for
a proper solution (ground loop interrupt).

• The internal temperature is too high. Wait

approximately one minute for the amplifier to
reach normal working temperature.

Radio stations cannot be tuned in.
• Check that the antenna is connected correctly.

Adjust the antenna and connect an external
antenna if necessary.

• The signal strength of the stations is too weak

for automatic tuning. Use manual tuning.

• No stations have been preset.

• The tuner mode is not selected, select the

Radio mode.

The remote does not function.
• Remove any obstacles between the remote

control and the system.

• Move the remote control closer to the system.

• Point the remote control at the remote sensor

on the front panel.

• Replace all the batteries in the remote control

with new ones if they are weak.

• Check that the batteries are loaded correctly.

The disc does not play.
• There is no disc inside. (“NO DISC” appears on

the front panel display and the TV screen.)
Insert a disc.

• Insert the disc correctly with the playback side

facing down.

• Clean the disc.

• The system cannot play CD-ROM's, etc. 

(see page 3).

• DVD with wrong region code 

(see page 18).

Playback stops automatically.
• Some discs include an auto pause signal. When

playing such a disc, the system stops playback
at the signal.

0019CSK - Digital Lounge 232EX_240HD ENG v1(12).qxp:0019CSK - DigitalLounge 250HD UK v6  12/06/08  12:02  Side 43    (Sort/Black plad

harman/kardon

Digital Lounge HS 250/230 Service Manual

Page 3 of 56