Samsung HT-AS720, AV-R720 Before calling for service cont’d, Product protection function

Before calling for service (cont’d)

Symptom		Check		Remedy
	• Are the surround back speakers		• Refer to pages 10~11 to connect it properly.
		connected properly?

Specifications GB

	Power supply		230V, 50 Hz
	Standby power consumption		0.9W
	Power consumption	Main unit	100W
GENERAL		Subwoofer	90W

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.

•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?

•Refer to pages 20~21 to select LARGE or

SMALL.

•Refer to page 32 to set Surround Mode to EX/ES.

•Refer to pages 20~21 to select LARGE or

SMALL.

•Use 7.1 channel external component.

•Select 2 channel Dolby Digital, PCM, and Analogue input signal.

•Use PCM and Analogue input signal.

•Check whether the DVD player is properly connected and refer to page 24 to select the digital input.

	Weight	5.8 kg
	Dimensions (W x H x D)	430 x 145 x 350 mm
	Operating temperature range	+5°C~+35°C
	Operating humidity range	10%~75%
	Frequency response	87.5~108.0MHz
	Usable sensitivity	12dBf
FM TUNER	S/N ratio	MONO/STEREO 55/55dB
	Distortion	MONO/STEREO 0.3/0.8%
	Stereo separation	30dB
	Tuner output level	1kHz, 75kHz Dev
	Rated output	20Hz~20kHz/THD = 10%
	Front speaker(left+right)	4 Ω 100W/CH
	Center speaker	4 Ω 100W/CH
AMPLIFIER	Surround speaker(left+right)	4 Ω 100W/CH
	Surround back	4 Ω 100W/CH
	Input sensitivity/impedance	450mV/47kΩ
	S/N ratio (analog input)	80dB
	Separation (1kHz)	60dB
FREQUENCY	Analog input	20Hz~20kHz(±3dB)
RESPONSE	Digital input/96kHz PCM	20Hz ~44kHz(±3dB)
	TV format	NTSC/PAL
VIDEO	Input level/impedance	1Vp-p/75 Ω
	Output level/impedance	1Vp-p/75 Ω
OUTPUT
	Video frequency response	5Hz to 10kHz(-3dB)

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.

•If PROTECTION appears on the display, check whether the speaker terminal is shorted and then turn on the unit

	S/N ratio		60dB		MISCELLANEOUS
S	Speaker system	Front / Surround / Surround back	Centre	Subwoofer speaker
	Impedance	4Ω x 6	4Ω	8Ω
P
E	Rated input	100W	100W	150W
A
K	Maximum input	200W	200W	300W
E
	Dimensions (W x H x D)	100 x 270 x 97 mm	300 x 90 x 94 mm	311 x 378 x 443 mm
R
S	Weight	1.4 Kg / 1.2 Kg / 1.2 Kg	1.4 Kg	14.4 Kg

❈S/N ratio, distortion, separation and usable sensitivity are based on measurement using AES (Audio Engineering Society) guidelines.

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