Denon AVR 4806 Owners Manual - Page 129

Troubleshooting - thx ultra2 receiver

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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, and other connected components operating properly? 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 • Power supply cord not plugged in securely. • Check the insertion of the power supply cord 41 produced when power switch plug. set to on. Display lit but sound not produced. • Speaker cables not securely connected. • FUNCTION knob position is not appropriate. • Volume control set to minimum. • MUTING is on. • No digital signal is being input. • Connect securely. • Switch to the proper position. • Turn volume up to suitable level. • Switch off MUTING. • Properly select a digital signal input source. 15, 16 43 43 44 89, 90 Nothing is displayed on monitor. • AVR-4806's video output terminals and • Check that the connections are correct. monitor's input terminals are not properly connected. • Monitor TV's input setting is wrong. • Set the TV's input selector to the terminals to which video signals are connected. • The PURE DIRECT mode is set. • Set a surround mode other than the PURE DIRECT mode. 17, 18, 26 ~ 41 - 49 • DVD player's audio output setting is not set to • Make the DVD player's initial settings. - No DTS sound is produced. bit stream. • DVD player is not DTS-compatible. • Use a DTS-compatible player. - • AVR-4806's input setting is set to analog. • Set to AUTO or DTS. 45 Ultra2 Cinema / THX Music Mode / THX Games Mode cannnot be set. • Surround back speaker set to 1. • Connect two surround back speakers. 16, 113, 114, 121 • Copying between a source such as DVD and a • Copying is not possible. - Copying from DVD to VCR is not VCR is not usually possible, as DVDs are often possible. encoded with copy-protection signals that prevent VCR recording. No sound is produced from subwoofer. • Subwoofer's power is not on. • Turn on the power. • Subwoofer's initial setting is set to "NO". • Set the setting to "YES". • Subwoofer's output is not connected. • Connect properly. • The subwoofer's channel volume level is set • Turn the subwoofer's channel volume level up. to "OFF". - 113, 114 16, 41 64 No test tones are produced. • Surround mode is set to a mode other than • Set to Dolby Surround. Dolby Surround. - No sound is produced from • Surround mode is set to "STEREO". • Set to a mode other than "STEREO". - surround speakers. • Batteries dead. • Replace with new batteries. 8 This unit does not operate properly when remote control unit is used. • Remote control unit too far from this unit. • Move closer. • Obstacle between this unit and remote control • Remove obstacle. unit. • Different button is being pressed. • Press the proper button. 9 9 - • < and > ends of battery inserted in reverse. • Insert batteries properly. 8 129

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Troubleshooting
129
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, and other connected components operating properly?
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 supply cord not plugged in securely.
• Check the insertion of the power supply cord
plug.
41
Display lit but sound not
produced.
• Speaker cables not securely connected.
• FUNCTION knob position is not appropriate.
• Volume control set to minimum.
• MUTING is on.
• No digital signal is being input.
• Connect securely.
• Switch to the proper position.
• Turn volume up to suitable level.
• Switch off MUTING.
• Properly select a digital signal input source.
15, 16
43
43
44
89, 90
Nothing is displayed on monitor.
•AVR-4806’s video output terminals and
monitor’s input terminals are not properly
connected.
• Monitor TV’s input setting is wrong.
• The PURE DIRECT mode is set.
• Check that the connections are correct.
• Set the TV’s input selector to the terminals to
which video signals are connected.
• Set a surround mode other than the PURE
DIRECT mode.
17, 18,
26 ~ 41
—
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-4806’s input setting is set to analog.
• Make the DVD player’s initial settings.
• Use a DTS-compatible player.
• Set to AUTO or DTS.
—
—
45
Ultra2 Cinema / THX Music
Mode / THX Games Mode
cannnot be set.
• Surround back speaker set to 1.
• Connect two surround back speakers.
16, 113,
114, 121
Copying from DVD to VCR is not
possible.
• Copying between a source such as DVD and a
VCR is not usually possible, as DVDs are often
encoded with copy-protection signals that
prevent VCR recording.
• 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.
• The subwoofer’s channel volume level is set
to “OFF”.
• Turn on the power.
• Set the setting to “YES”.
• Connect properly.
• Turn the subwoofer’s channel volume level up.
—
113, 114
16, 41
64
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.
8
9
9
—
8