SERVICE MANUAL
Ver. 1.0 2013.06
• All of the units included in the HT-ST7 (SA-
ST7/SA-WST7/EZW-RT50) are required to
confi rming operation of SA-ST7. Check in
advance that you have all of the units.
COMPONENT MODEL NAME
Sound Bar (Active Speaker System)
Subwoofer (Active Subwoofer)
Wireless transceiver
• Please refer to service manual separately issued for Subwoofer.
As for EZW-RT50, the part number has been described to this
service manual.
Amplifier section
U.S. models:
POWER OUTPUT AND TOTAL HARMONIC DISTORTION:
(FTC)
Front L + Front R:
With 4 ohms loads, both channels driven, from 200 - 20,000 Hz; rated
25 Watts per channel minimum RMS power, with no more than 1%
total harmonic distortion from 250 milliwatts to rated output.
POWER OUTPUT (reference)
Front L/Front R speaker blocks: 50 Watts (per channel at 4 ohms,
1 kHz)
Center speaker block: 50 Watts (per channel at 4 ohms, 1 kHz)
Canadian models:
POWER OUTPUT (rated)
Front L + Front R: 35 W + 35 W
(at 4 ohms, 1 kHz, 1 % THD)
POWER OUTPUT (reference)
Front L/Front R speaker blocks: 50 Watts (per channel at 4 ohms,
1 kHz)
Center speaker block: 50 Watts (per channel at 4 ohms, 1 kHz)
AEP, UK and Australian models:
POWER OUTPUT (rated)
Front L + Front R: 40 W + 40 W
(at 4 ohms, 1 kHz, 1 % THD)
POWER OUTPUT (reference)
Front L/Front R speaker blocks: 50 Watts (per channel at 4 ohms,
1 kHz)
Center speaker block: 50 Watts (per channel at 4 ohms, 1 kHz)
Inputs
HDMI IN 1/2/3*
OPTICAL IN 1(TV)/2
ANALOG IN
COAXIAL IN
* These 3 jacks are identical. Using any of them makes no difference.
Output
HDMI TV OUT (ARC)
9-893-769-01
Sony Corporation
2013F33-1
©
2013.06
Published by Sony Techno Create Corporation
HT-ST7
SA-ST7
SA-WST7
EZW-RT50
SPECIFICATIONS
BLUETOOTH section
Communication system
BLUETOOTH Specification version 3.0
Output
BLUETOOTH Specification Power Class 2
Maximum communication range
1)
Line of sight approx. 10 m (33 ft)
Maximum number of devices to be registered
9 devices
Frequency band
2.4 GHz band (2.4000 GHz - 2.4835 GHz)
Modulation method
FHSS (Freq Hopping Spread Spectrum)
2)
Compatible BLUETOOTH profiles
A2DP (Advanced Audio Distribution Profile)
AVRCP 1.3 (Audio Video Remote Control Profile)
3)
Supported Codecs
4)
5)
SBC
, AAC
, aptX
Transmission range (A2DP)
20 Hz - 20,000 Hz (Sampling frequency 44.1 kHz)
1) The actual range will vary depending on factors such as obstacles
between devices, magnetic fields around a microwave oven, static
electricity, cordless phone, reception sensitivity, operating system,
software application, etc.
2) BLUETOOTH standard profiles indicate the purpose of BLUETOOTH
communication between devices.
3) Codec: Audio signal compression and conversion format
4) Subband Codec
5) Advanced Audio Coding
Front L/Front R speaker blocks
Speaker system
2-way speaker system, Acoustic suspension
Speaker
Woofer: 65 mm (2 5/8 in) cone type, Magnetic fluid speaker
Tweeter; 20 mm (13/16 in) dome type
Rated impedance
4 ohms
Center speaker block
Speaker system
Full range speaker system, Acoustic suspension
Speaker (5 speakers)
65 mm (2 5/8 in) cone type, Magnetic fluid speaker
Rated impedance
4 ohms
General
Power requirements
120 V AC, 60 Hz (US and Canadian models)
220 V - 240 V AC, 50 Hz/60 Hz
(AEP, UK and Australian models)
Power consumption
On: 50 W (US and Canadian models)
On: 55 W (AEP, UK and Australian models)
"Control for HDMI" is off (Standby mode): 0.5 W or less
BLUETOOTH Standby mode: 0.5 W or less
Dimensions (approx.) (w/h/d)
1,080 mm × 109 mm × 110 mm (42 5/8 in × 4 3/8 in × 4 3/8 in)
(without grille frame, without stands)
1,080 mm × 109 mm × 129 mm (42 5/8 in × 4 3/8 in × 5 1/8 in)
(with grille frame, without stands)
1,080 mm × 129 mm × 138 mm (42 5/8 in × 5 1/8 in × 5 1/2 in)
(with grille frame, with stands)
1,080 mm × 129 mm × 130 mm (42 5/8 in × 5 1/8 in × 5 1/8 in)
(without grille fr am e, with stands)
Mass (approx.)
7.9 kg (17 Ib 6 5/8 oz) (with grille frame, with stands)
HOME THEATRE SYSTEM
ACTIVE SPEAKER SYSTEM
HT-ST7
SA-ST7
US Model
Canadian Model
AEP Model
UK Model
Australian Model
Wireless transceiver (EZW-RT50)
Communication System
Wireless Sound Specification version 1.0
Frequency band
5.736 GHz - 5.814 GHz (US and Canadian models)
5.725 GHz - 5.875 GHz (AEP, UK and Australian models)
Power requirements
DC 3.3 V, 300 mA
Modulation method
DSSS
Dimensions (approx.)
30 mm × 9 mm × 60 mm (1 3/16 in × 3/8 in × 2 3/8 in) (w/h/d)
Mass (approx.)
10 g (3/8 oz)
Digital audio input formats supported by the system
Dolby Digital
DTS-HD Master Audio*
Dolby Digital Plus*
DTS-HD High Resolution Audio*
Dolby TrueHD*
DTS-HD Low Bit Rate*
DTS
Linear PCM 2ch 48 kHz or less
DTS 96/24
Linear PCM Maximum 7.1ch 192 kHz or less*
* It is possible to input these formats only with HDMI connection.
– Continued on next page –
HT-ST7
SA-ST7
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