AVI 250 (serv.man9) - Harman Kardon Audio User Guide / Operation Manual. Page 37

No front panel lights when power switch 

• No AC Power

• Make certain AC power cord is plugged 

is pressed

into a live outlet.

• Check to see if outlet is switch controlled.

Display lights, but no sound or picture

• Intermittent input connections

• Make certain that all input and speaker

connections are secure.

• 

is on

• Press 

button.

• Volume control is down

• Turn up volume control.

No sound from surround or center speakers

• Incorrect surround mode

• Select a mode other than Stereo or Monaural.

• Input is monaural

• There is no surround information from 

mono sources.

• Incorrect configuration

• Check configuration in 

SET UP MENU

.

No On Screen Control Menus

• TV input is “S” Video

• Change TV input to Composite Video. 

The menus are available ONLY on Composite
Video.

Unit does not respond to remote commands

• Weak batteries in remote

• Change remote batteries.

• Remote is in 

position

• Slide 

switch to 

.

• Remote sensor is obscured

• Make certain front panel sensor is visible 

to remote.

Troubleshooting

31

Troubleshooting Chart

Memory Backup
This product is equipped with a memory
backup system that preserves system
configuration information if the unit is
accidentally unplugged or subject to a
power outage. This memory will last for
approximately one week, after which time
all information must be re-entered.

Engelsk manual AVI250  11/01/98 8:53  Side 31