Denon AVR-4802R User Manual

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15 TROUBLESHOOTING 
If a problem should arise,first check the following.
1. Are the connections correct ?
2. Have you operated the receiver according to the Operating Instructions ?
3. Are the speakers, turntable and other components operating property ?
If this unit is not operating properly, check the items listed in the table below. Should the problem persist, there may be a malfunction. 
Disconnect the power immediately and contact your store of purchase.
Symptom
Cause
Measures
Page
DISPLAY not lit and sound not produced
when power switch set to on.
• Power cord not plugged in securely.
• Check the insertion of the power cord plug.
6
DISPLAY lit but sound not produced.
• Speaker cords not securely connected.
• Input source selector button position is not
appropriate.
• Volume control set to minimum.
• MUTING is on.
• No digital signal is being input.
• Speaker A or B button is set to “OFF”.
• Connect securely.
• Switch to the proper position.
• Turn volume up to suitable level.
• Switch off MUTING.
• Properly select a digital signal input source.
• Set the button for the connected speaker
terminals to “ON”.
12, 13
47
48
51
28, 47
18
Nothing is displayed on monitor.
• AVR-4802R’s video output jacks and monitor’s
input jacks are not properly connected.
• Monitor TV’s input setting is wrong.
• Connections of the various component’s video
signals are not unified.
• VIDEO OFF mode is set.
• PURE DIRECT mode is set.
• Check that the connections are correct.
• Set the TV’s input selector to the jacks to which
video signals are connected.
• Unify to composite or S jack.
• VIDEO ON mode is set.
• Mode other than PURE DIRECT mode is set.
7 ~ 9
7 ~ 9
7 ~ 9
50
49
No dts sound is produced.
• DVD player’s audio output setting is not set to bit
stream.
• DVD player is not dts-compatible.
• AVR-4802R’s input setting is set to analog.
• Make the DVD player’s initial settings.
• Use a dts-compatible player.
• Set to AUTO or dts.
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Copying from DVD to VCR is not
possible.
• Mode video software contains copy prohibit
signals.
• Copying is not possible.
No sound is produced from subwoofer.
• Subwoofer’s power is not on.
• Subwoofer’s initial setting is set to “NO”.
• Subwoofer’s output is not connected.
• Turn on the power.
• Set the setting to “YES”.
• Connect properly.
18
13
No test tones are produced.
• Surround mode is set to a mode other than
Dolby Surround.
• Set to Dolby Surround.
No sound is produced from surround
speakers.
• Surround mode is set to “STEREO”.
• Set to a mode other than “STEREO”.
This unit does not operate properly when
remote control unit is used.
• Batteries dead.
• Remote control unit too far from this unit.
• Obstacle between this unit and remote control
unit.
• Different button is being pressed.
• < and > ends of battery inserted in reverse.
• Replace with new batteries.
• Move closer.
• Remove obstacle.
• Press the proper button.
• Insert batteries properly.
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33
33
Ultra2 Cinema/THX MusicMode cannot
be set.
• Surround back speaker set to 1.
• Connect two surround back speakers.
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