Harman Kardon SIGNATURE 2.0, Service Manual

Page: 23 / 122

T
roubleshooting Guide
56
Signature 2.0
Symptom
Unit does not operate
when standby switch or
remote power is pressed.
Display lights, but no
sound is heard from
any channel.
Unit does not respond
to remote commands.
Intermittent buzzing
in tuner.
Status Menus visible,
but setup menus
do not appear.
Amplifier connected to
the trigger output cycles
on and off.
Audio signals distort for
analog inputs.
Solution
• Make certain AC power cord is plugged into a
live outlet.
• Check to see if AC outlet is switch controlled.
• Turn on Main Power Switch.
• Make certain connections to source equipment and
amplifiers are secure.
• Turn Volume control or press Mute button.
• Turn Amplifier on and/or check trigger connections.
• Change both remote batteries.
• Slide
Use/Learn
switch to
Use
.
• Make certain front panel sensor is visible.
• Move unit or antenna away from computers, fluores-
cent lights, TVs, motors or other electrical appliances.
• Switch to input with video signal present.
• Viewing the front panel display, use the menu
system to reach
Display Options
, under
the
Advanced Settings
menu. Switch the
“
Menu Bkgrnd
” to “
Blue
” (see page 36).
• Make certain that the jack used is a 1 ⁄
8
²
(3.5mm)
MONO miniplug, not a stereo plug.
• Check to see that the plugs are firmly seated on
both ends.
• Adjust input level to proper reference (see page 29).
Possible Cause
• No AC Power.
• Main Power Switch Off.
• Intermittent Connections.
• Mute is engaged.
• Amplifier is off.
• Weak batteries in remote.
• Remote is in
Learn
position.
• Remote sensor is obscured.
• Local interference.
• Menu background set to
“video” but no video is
present.
• Connection problems.
• Input level too high.
Troubleshooting Chart
23
Signature 2.0 Processor/Tuner harman/kardon