Samsung HT-AS720S Instruction Manual page 48

Before calling for service
Symptom
There is no sound from
surround back speakers
Can't select EX/ES mode.
Can't select Dolby Pro
Logic llx mode.
Can't select NEO:6 mode.
There is no sound when
playing a DTS encoded
DVD.
Product protection function
Heat protection
• The protection function will come on if the main unit or power
transformer overheats.
"
This function will come on :
- If speaker terminal is shorted
- If speaker cable is shorted
If there is no problem when you turn the unit on again after
turning it off, PROTECTION mark will disappear on the
display and the unit will work properly.
48
Are the surround back speakers
•
connected properly?
Is the S.BACK(Surround Back) selected
•
to NONE in Speaker Setup?
Is Surround Mode set to EX/ES?
•
Is S.BACK(Surround Back) selected to
•
NONE in Speaker Setup?
Is the input signal selected properly?
•
Is the input signal selected properly?
•
Is the input signal selected properly?
•
Is Digital input selected?
•
" will appear in the display .
Check
•
•
•
•
•
•
•
•
If PROTECTION appears on the display,
•
check whether the speaker terminal is shorted
and then turn on the unit
(cont'd)
Remedy
Refer to pages 12~13 to connect it properly.
Refer to pages 22~23 to select LARGE or
SMALL.
Refer to page 34 to set Surround Mode to EX/ES.
Refer to pages 11~12 to select LARGE or
SMALL.
Use 7.1 channel external component.
Select 2 channel Dolby Digital, PCM, and
Analog input signal.
Use PCM and Analog input signal.
Check whether the DVD player is properly
connected and refer to page 24 to select
the digital input.