Samsung HT-AS720ST-XAA - Manual (Page 48)

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• If PROTECTION appears on the display,
check whether the speaker terminal is shorted
and then turn on the unit
Product protection function
Heat protection
• The protection function will come on if the main unit or power
transformer overheats.
"
" will appear in the display .
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.
Symptom Check Remedy
There is no sound from
surround back speakers
• 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?
• 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.
Can't select EX/ES mode.
• Is S.BACK(Surround Back) selected to
NONE in Speaker Setup?
• Is the input signal selected properly?
• Refer to pages 11~12 to select LARGE or
SMALL.
• Use 7.1 channel external component.
Can't select Dolby Pro
Logic llx mode.
• Is the input signal selected properly? • Select 2 channel Dolby Digital, PCM, and
Analog input signal.
There is no sound when
playing a DTS encoded
DVD.
• Is Digital input selected? • Check whether the DVD player is properly
connected and refer to page 24 to select
the digital input.
Can't select NEO:6 mode. • Is the input signal selected properly? • Use PCM and Analog input signal.
Before calling for service
(cont’d)
HT-AS720S-XAA-ENG 2007.8.21 6:8 PM Page 48