Troubleshooting
If a problem should arise, first check the following:
1.Are the connections correct?
2.Is the set being operated as described in the owner’s manual?
3.Are the other components operating properly?
If this unit does not operate properly, check the items listed in the table below. Should the problem persist, there may be a malfunction.
In this case, disconnect the power immediately and contact your store of purchase.
GGeneralH
Symptom |
|
| Cause |
|
|
| Countermeasure |
| Page | |||
Power does not | • Connection of the power cord is | • Check that the power plugs are | 20 | |||||||||
turn on, or turns | faulty. |
|
|
| securely inserted into the AVR- |
| ||||||
off directly after it |
|
|
|
|
| 988’s AC inlet and the wall power |
| |||||
was turned on. |
|
|
|
|
| outlet. |
|
|
|
|
| |
No sound is | • Connection | with | the | input | • Check the connections. |
| 9 | |||||
produced from | devices or connection of the |
|
|
|
|
|
|
| ||||
speakers. | speaker cables is faulty. |
|
|
|
|
|
|
|
| |||
| • Device you want to play and set | • Select | an | appropriate | input | 43 | ||||||
| input source do not match. |
| source. |
|
|
|
|
| ||||
| • Master volume is | turned too | • Adjust the master volume to an | 43 | ||||||||
| low. |
|
|
|
| appropriate level. |
|
|
| |||
| • Mute mode is set. |
|
| • Cancel the mute mode. |
| 43 | ||||||
| • Headphones are connected. | • Disconnect the headphones. | 43 | |||||||||
| • No | digital | signals | are | being | • Select an input source for which | 35 | |||||
| input. |
|
|
| the digital input setting has been |
| ||||||
|
|
|
|
|
| made. |
|
|
|
|
| |
| • The | connectors to | which the | • Set the input mode. |
|
| 34 | |||||
| digital inputs are assigned and |
|
|
|
|
|
|
| ||||
| the settable input modes do not |
|
|
|
|
|
|
| ||||
| match. |
|
|
|
|
|
|
|
|
|
| |
Display is off. | • The “Dimmer” setting is set to | • Set | to | something | other | than | 32 | |||||
| “OFF”. |
|
|
| “OFF”. |
|
|
|
|
| ||
| • The PURE DIRECT mode is set. | • Set a surround mode other than | 37 | |||||||||
|
|
|
|
|
| the PURE DIRECT mode. |
|
| ||||
“DOLBY DIGITAL” | • DVD player’s digital audio output | • Check | the | DVD player’s | audio | – | ||||||
indicator does not | setting is not proper. |
|
| output setting. For details, read |
| |||||||
appear on display. |
|
|
|
|
| the | DVD | player’s | operating |
| ||
|
|
|
|
|
| instructions. |
|
|
|
|
Symptom |
| Cause |
| Countermeasure |
| Page | |||
Power turns off | • Protection | circuit activated due | • Turn off the power, wait for the | 10 | |||||
suddenly and | to rise of internal temperature. | set to fully cool down, then turn |
| ||||||
power indicator |
|
| the power back on. |
|
|
| |||
flashes red. |
|
| • Place the set in a | 10 | |||||
|
|
| place. |
|
|
|
|
|
|
| • Core wires of two speakers are | • First unplug | the | power cord, | 10 | ||||
| touching each other or a core | then twist the core wires tightly |
| ||||||
| wire is sticking out of the terminal | or terminate the speaker cables, |
| ||||||
| and touching the set’s rear panel, | then reconnect. |
|
|
|
| |||
| activating the protection circuit. |
|
|
|
|
|
|
| |
| • Speakers | with an impedance | • Use speakers with the specified | 10 | |||||
| other than specified are being | impedance. |
|
|
|
|
| ||
| used. |
|
|
|
|
|
|
|
|
| • Set is damaged. | • Turn off the power and contact a | – | ||||||
|
|
| DENON service center. |
|
|
| |||
GRemote Control UnitH |
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
| |||
Symptom |
| Cause |
| Countermeasure |
| Page | |||
Set does not work | • Batteries are worn. | • Replace with new batteries. |
| 3 | |||||
properly when | • You are operating outside of the | • Operate within | the | specified | 3 | ||||
remote control | specified range. | range. |
|
|
|
|
|
| |
unit operated. | • Obstacle between main unit and | • Remove the obstacle. |
|
| 3 | ||||
| remote control unit. |
|
|
|
|
|
|
| |
| • The batteries are not inserted in | • Insert | the | batteries | in | the | 3 | ||
| the proper direction, as indicated | proper | direction, | following | the |
| |||
| by the polarity marks in the | polarity marks in the battery |
| ||||||
| battery compartment. | compartment. |
|
|
|
| |||
| • The set’s remote control sensor | • Move the set to a place in which | 3 | ||||||
| is exposed to strong light (direct | the remote control sensor will |
| ||||||
| sunlight, inverter type fluorescent | not be exposed to strong light. |
| ||||||
| bulb light, etc.). |
|
|
|
|
|
|
| |
| • The remote ID of the main unit | • Set “Remote ID” for the main | 32 | ||||||
| and remote control unit do not | unit to “1”. |
|
|
|
|
| ||
| match. |
|
|
|
|
|
|
|
|
Troubleshooting Information
68