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Troubleshooting guide – Harman-Kardon 13828 User Manual

Page 25

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ENGLISH

TROUBLESHOOTING GUIDE 25

Troubleshooting Guide

Processor Reset

In the rare case where the unit’s operation or the
displays seem abnormal, the cause may involve
the erratic operation of the system’s memory or
microprocessor.

To correct this problem, first unplug the unit
from the AC wall outlet and wait at least three
minutes. After the pause, reconnect the AC
power cord and check the unit’s operation. If the
system still malfunctions, a system reset may
clear the problem.

To clear the AVR’s entire system memory
including tuner presets, output level settings,
delay times and speaker configuration data, first
put the unit in Standby by pressing the System
Power Control
button

1. Next, press and

hold the Surround Mode Button

6 for 5 sec-

onds.

The unit will turn on automatically. Note that
once you have cleared the memory in this man-
ner, it is necessary to re-establish all system
configuration settings and tuner presets.

NOTE: Resetting the processor will erase any
configuration settings you have made for
speakers, output levels, surround modes, digital
input assignments as well as the tuner presets.
After a reset the unit will be returned to the
factory presets, and all settings for these items
must be reentered.

If the system is still operating incorrectly, there
may have been an electronic discharge or severe
AC line interference that has corrupted the
memory or microprocessor.

If these steps do not solve the problem, consult
an authorized Harman Kardon service depot.

SYMPTOM

CAUSE

SOLUTION

Unit does not function when

• No AC Power

• Make certain AC power cord is plugged

Main Power Switch

0 is pushed

into a live outlet

• Check to see if outlet is switch controlled

Display lights, but no sound

• Intermittent input connections

• Make certain that all input and speaker

or picture

connections are secure

Mute is on

• Press Mute button

4

• Volume control is down

• Turn up volume control

Sound is heard, but Front-Panel

• Display brightness is turned off

• Follow the instructions in the Display Brightness section

Display does not light

on page 23 so that the display is set to VFD FULL

No sound from any speaker;

• Amplifier is in protection mode

• Check speaker-wire connections for shorts at receiver

light around Power switch

1 is red

due to possible short

and speaker ends

• Amplifier is in protection mode

• Contact your local Harman Kardon service depot

due to internal problems

No sound from surround or

• Incorrect surround mode

• Select a mode other than Stereo

center speakers

• Incorrect configuration

• Check speaker mode

• Stereo or Mono program material

• With (analog or digital) Dolby surround modes, the surround

decoder may not create rear-channel
information from non-encoded programs

• Speakers not properly connected

• Check speaker-wire connections or use test tone

to verify connections (see page 20)

Unit does not respond to

• Weak batteries in remote

• Change remote batteries

remote commands

• Wrong device selected

• Press the AVR selector

h

Remote sensor

E is obscured

• Make certain front-panel sensor is visible to remote or

connect remote sensor

Intermittent buzzing in tuner

• Local interference

• Move unit or antenna away from computers, fluorescent lights,

motors or other electrical appliances

Letters flash in the Channel Indicator

• Digital audio feed paused

• Resume play for DVD

Display

T and Digital Audio stops

• Check that Digital Signal is fed to the Digital Input selected

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