ONKYO HT-R640 Manual Do Utilizador

78

• Relocate your antenna.
• Move the AV receiver away from your TV or com-

puter.

• Listen to the station in mono (page 48).
• When listening to an AM station, operating the remote 

controller may cause noise.

• Passing cars and airplanes can cause interference.
• Concrete walls weaken radio signals.
• If nothing improves the reception, install an outdoor 

antenna.

• Make sure that the batteries are installed with the cor-

rect polarity (page 12).

• Install new batteries. Don’t mix different types of bat-

teries, or old and new batteries (page 12).

• Make sure that the remote controller is not too far 

away from the AV receiver, and that there’s no 
obstruction between the remote controller and the AV 
receiver’s remote control sensor (page 12).

• Make sure that the AV receiver is not subjected to 

direct sunshine or inverter-type fluorescent lights. 
Relocate if necessary.

• If the AV receiver is installed in a rack or cabinet with 

colored-glass doors, the remote controller may not 
work reliably when the doors are closed.

• Make sure you’ve selected the correct remote control-

ler mode (pages 13-16).

• When using the remote controller to control other 

manufacturers’ AV components, some buttons may 
not work as expected.

• Make sure you’ve entered the correct remote control 

code.

• Make sure to set the same ID on both the AV receiver 

and remote controller (pages 69 and 71).

• If it’s an Onkyo component, make sure that the 

 

cable and analog audio cable are connected properly. 
Connecting only an 

 cable won’t work (page 36).

• Make sure you’ve selected the correct remote control-

ler mode (pages 13-16).

• If you’ve connected an 

-capable Onkyo MD 

recorder, CD recorder, or next generation HDD-com-
patible component to the TAPE IN/OUT jacks, or a 
DS-A1 Remote Interactive Dock to the VIDEO 3 IN 
jacks, for the remote controller to work properly, you 

must set the display to MD, CDR, or HDD (pages 44 
and 73).

• To control another manufacturer’s component, point 

the remote controller at that component.

• To control an Onkyo component that’s connected via 

, point the remote controller at the AV receiver. Be 

sure to enter the appropriate remote control code first 
(page 73).

• To control an Onkyo component that’s not connected 

via 

, or another manufacturer’s component, point 

the remote controller at the component. Be sure to enter 
the appropriate remote control code first (page 72).

• On your recorder, make sure the correct input is 

selected (e.g., digital or analog).

• When the Pure Audio listening mode (not North 

American models) is selected, recording is not possi-
ble because no video signals are output. Select another 
listening mode.

• When a pair of headphones is connected, the listening 

mode is set to Stereo, unless it’s already set to Stereo, 
Mono, Direct, or Pure Audio (not North American 
models). 

• In some cases, corrected values suitable for home the-

ater use may be set automatically.

• The display is turned off when the Pure Audio (not 

North American models) listening mode is selected.

• Use the “a. Multiplex” setting on the “Audio Adjust” 

menu to select Main or Sub (page 66).

• To use 

, you must make an 

 connection and an 

analog audio connection (RCA) between the compo-
nent and AV receiver, even if they are connected digi-
tally (page 36).