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Table of Contents
Sound BarSpecificationsTable of Contents1 Servicing Notes2 DisassemblyDisassembly FlowTop Panel BlockHow to Install the Connection Cable with Speaker (L-Ch, R-Ch) (SPC1, SPC2)Speaker (60 MM) (L-Ch, R-Ch) (SP1, SP2), Speaker (19 MM) (L-Ch, R-Ch) (SP3, SP4)NFC Module (NFC1)FL BoardPOWER BoardRF Modulator (RF1)Connection Cable with Speaker (L-Ch, R-Ch) (SPC1, SPC2)KEY Board, KeyMAIN BoardPower Cord (AC1)Bluetooth Module (BT1)Bottom Chassis BlockService Position3 Test Mode4 Troubleshooting5 DiagramsBlock Diagram - HDMI SectionBlock Diagram - MAIN SectionBlock Diagram - AMP SectionBlock Diagram - PANEL/POWER SUPPLY SectionPrinted Wiring Boards - MAIN Section (1/2)Printed Wiring Board - MAIN Section (2/2)Schematic Diagram - MAIN Section (1/8)Schematic Diagram - MAIN Section (2/8)Schematic Diagram - MAIN Section (3/8)Schematic Diagram - MAIN Section (4/8)Schematic Diagram - MAIN Section (5/8)Schematic Diagram - MAIN Section (6/8)Schematic Diagram - MAIN Section (7/8)Schematic Diagram - MAIN Section (8/8)Printed Wiring Board - FL BoardSchematic Diagram - FL BoardPrinted Wiring Board - POWER BoardSchematic Diagram - POWER Board6 Exploded ViewsOverall SectionTop Panel SectionBottom Panel SectionMAIN Board Section7 Electrical Parts ListRevision History
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Sound Bar
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How to Install the Connection Cable with Speaker (L-Ch, R-Ch) (Spc1, Spc2)
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Bluetooth Module (Bt1)
22
Test Mode
27
Troubleshooting
SERVICE MANUAL
Ver. 1.1 2015.04
• All of the units included in
the HT-CT780 (SA-CT780/
SA-WCT780/Remote con-
trol) are required to confi rm-
ing operation of SA-CT780.
Check in advance that you
have all of the units.
Note:
Be sure to keep your PC used for service and
checking of this unit always updated with the
latest version of your anti-virus software.
In case a virus affected unit was found during
service, contact your Service Headquarters.
COMPONENT MODEL NAME
Bar Speaker (Active Speaker System)
Subwoofer (Active Subwoofer)
• Please refer to service manual separately issued for Subwoofer.
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 Hz - 20,000 Hz; rated
35 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: 105 Watts (per
channel at 4 ohms, 1 kHz)
Chinese model:
POWER OUTPUT (rated)
Front L + Front R:
35 W + 35 W (at 4 ohms, 1 kHz, 1%
THD)
Brazilian model:
The following values were measured at
127 V AC 60 Hz
RMS POWER OUTPUT:
Front L + Front R:
70 W (35 W per channel × 2, at 4
ohms, 1 kHz, 10% THD*)
* Total harmonic distortion
Other models:
POWER OUTPUT (rated)
Front L + Front R:
50 W + 50 W (at 4 ohms, 1 kHz, 1%
THD)
POWER OUTPUT (reference)
Front L/Front R: 105 Watts (per
channel at 4 ohms, 1 kHz)
Inputs
HDMI IN* 1/2/3
ANALOG IN
DIGITAL IN (TV)
Outputs
HDMI OUT** (ARC)
9-896-146-02
Sony Corporation
2015D33-1
©
2015.04
Published by Sony Techno Create Corporation
Photo: SA-CT780
HT-CT780
SA-CT780
SA-WCT780
SPECIFICATIONS
* The 1 jack supports HDCP 2.2
protocol. HDCP 2.2 is newly enhanced
copyright protection technology that is
used to protect content such as 4K
movies. The 2 and 3 jacks are identical.
Using any of them makes no difference.
** The HDMI OUT jack supports
HDCP 2.2 protocol. HDCP 2.2 is newly
enhanced copyright protection
technology that is used to protect
content such as 4K movies.
HDMI Section
Connector
Type A (19pin)
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 1.2 (Advanced Audio Distribution
Profile)
AVRCP 1.3 (Audio Video Remote
Control Profile)
3)
Supported Codecs
4)
5)
SBC
, AAC
Transmission range (A2DP)
20 Hz - 20,000 Hz (Sampling frequency
44.1 kHz)
HT-CT780
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 section
Speaker system
2-way speaker system,
Acoustic suspension
Speaker
3
Woofer: 60 mm (2
/
in)
8
cone type
3
Tweeter: 19 mm (
/
in)
4
soft dome type
General
Power requirements
120 V AC, 60 Hz (US, CND)
120 V AC, 50 Hz/60 Hz (TW)
110 V - 240 V AC, 50 Hz/60 Hz (PX, EA3, BR)
220 V - 240 V AC, 50 Hz/60 Hz (Other models)
Power consumption
On: 40 W
Standby: 0.3 W or less
(at the Power saving mode)
Standby: 0.5 W or less
(When [S. THRU] is [ON]: 6 W or less)
ACTIVE SPEAKER SYSTEM
SA-CT780
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Chinese Model
PX Model
Dimensions (approx.) (w/h/d)
5
1,030 mm × 55 mm × 117 mm (40
/
in
8
1
5
× 2
/
in × 4
/
in) (without wall
4
8
mounting brackets)
5
1,030 mm × 120 mm × 74 mm (40
/
in
8
3
× 4
/
in × 3 in) (with wall mounting
4
brackets)
Mass (approx.)
3
2.8 kg (6 lb 2
/
oz)
4
Wireless transmitter section
Speaker system
Wireless Sound Specification version
2.0
Frequency band
2.4 GHz (2.4000 GHz - 2.4835 GHz)
Modulation method
Pi / 4 DQPSK
Supplied accessories
Remote control (1)
R03 (size AAA) batteries (2)
Optical digital cable (1)
Wall mounting brackets (2) and screws (2)
Startup Guide (1)
Operating Instructions (1)
Design and specifications are subject to
change without notice.
HT-CT780
SOUND BAR
SA-CT780
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