Sharp HT-SB400H (serv.man3) Service Manual ▷ View online
HT-SB400
is a trademark of SRS Labs, Inc.
TruSurround HD technology is incorporated under license
from SRS Labs, Inc.
from SRS Labs, Inc.
SRS TruSurround HD
TM
creates an immersive, feature-rich
surround sound experience from two speakers, complete with
rich bass, high frequency detail and clear dialog.
rich bass, high frequency detail and clear dialog.
SOUND B
AR SYSTE
M HT-SB4
00
SOUND B
AR SYSTE
M HT-SB4
00
VOL
VOL
STANDARD
STANDARD
SPORT
SPORT
NEWS
NEWS CINE
MA/GAME
CINEMA/GAME
FUNCTION
FUNCTION
ON/STAND-BY
ON/STAND-BY
VOL
VOL
SERVICE MANUAL
No. SX949HTSB400H
PRECAUTIONS FOR USING LEAD-FREE SOLDER
CHAPTER 1. GENERAL DESCRIPTION
[1] Specifications................................................ 1-1
[2] Name Of Parts ...............................................1-2
CHAPTER 1. GENERAL DESCRIPTION
[1] Specifications................................................ 1-1
[2] Name Of Parts ...............................................1-2
CHAPTER 2. ADJUSTMENTS
[1] Test
[1] Test
Mode ......................................................2-1
CHAPTER 3. MECHANISM BLOCKS
[1] Disassembly ..................................................3-1
[1] Disassembly ..................................................3-1
CHAPTER 4. DIAGRAMS
[1] Block
[1] Block
Diagram ...............................................4-1
CHAPTER 5. CIRCUIT DESCRIPTION
[1] Voltage...........................................................5-1
[1] Voltage...........................................................5-1
CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS
LAYOUT
[1] Notes On Schematic Diagram........................ 6-1
[2] Types Of Transistor And LED........................ 6-1
[3] Schematic
LAYOUT
[1] Notes On Schematic Diagram........................ 6-1
[2] Types Of Transistor And LED........................ 6-1
[3] Schematic
Diagram........................................ 6-2
[4] Chart Of Connecting Wires .......................... 6-16
[5] Wiring Side Of PWB..................................... 6-18
[5] Wiring Side Of PWB..................................... 6-18
CHAPTER 7. OTHERS
[1] Function Table Of IC ...................................... 7-1
[1] Function Table Of IC ...................................... 7-1
PARTS GUIDE
SOUND BAR SYSTEM
HT-SB400
MODEL
CONTENTS
SHARP CORPORATION
Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with
specified ones for maintaining the safety and performance of the set.
specified ones for maintaining the safety and performance of the set.
!
• In the interests of user-safety the set should be restored
to its original condition and only parts identical to those
specified be used.
[ EUROPE, U.K. ]
HT-SB400
– i –
PRECAUTIONS FOR USING LEAD-FREE SOLDER
1. Employing lead-free solder
Example:
Indicates lead-free solder of tin, silver and copper.
Lead-free wire solder for servicing
Ref No.
Description
Parts No.
"MAIN, POWER, DISPLAY, AMPLIFIER, MTOUCH PWB" of this model employs lead-free solder. The LF symbol
indicates lead-free solder, and is attached on the PWB and service manuals. The alphabetical character following
LF shows the type of lead-free solder.
indicates lead-free solder, and is attached on the PWB and service manuals. The alphabetical character following
LF shows the type of lead-free solder.
2. Using lead-free wire solder
When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional
lead wire solder may cause damage or accident due to cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40°C, we recommend
you to use a dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldering
bit, contact our service station or service branch in your area.
lead wire solder may cause damage or accident due to cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40°C, we recommend
you to use a dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldering
bit, contact our service station or service branch in your area.
3. Soldering
As the melting point of lead-free solder (Sn-Ag-Cu) is about 220°C which is higher than the conventional lead
solder by 40°C,and as it has poor solder wet ability, you may be apt to keep the soldering bit in contact with the
PWB for extended period of time. However, since the land may be peeled of for the maximum heat-resistance
temperature of parts may be exceeded, remove the bit from the PWB as soon as you confirm the steady
soldering condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corrected. Make sure to turn
on and off the power of the bit as required. If a different type of solder stays on the tip of the soldering bit, it is
alloyed with lead-free solder. Clean the bit after every use of it.
When the tip of the soldering bit is blackened during use, file it with steel wool or fine sand paper.
Be careful when replacing parts with polarity indication on the PWB silk.
solder by 40°C,and as it has poor solder wet ability, you may be apt to keep the soldering bit in contact with the
PWB for extended period of time. However, since the land may be peeled of for the maximum heat-resistance
temperature of parts may be exceeded, remove the bit from the PWB as soon as you confirm the steady
soldering condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corrected. Make sure to turn
on and off the power of the bit as required. If a different type of solder stays on the tip of the soldering bit, it is
alloyed with lead-free solder. Clean the bit after every use of it.
When the tip of the soldering bit is blackened during use, file it with steel wool or fine sand paper.
Be careful when replacing parts with polarity indication on the PWB silk.
PWB-A
92LPWB7746MANS
MAIN (A1) / POWER (A2) / DISPLAY (A3) / AMPLIFIER (A4) / MTOUCH (A5)
HT-SB400
–2
CHAPTER 1: GENERAL DESCRIPTION
[1] Specifications
CAUTION : “Danger of explosion if battery is incorrectly replaced. Replace only with the same or
equivalent type”.
equivalent type”.
General
(*) This power consumption value is obtained when in the touch sensing off
mode (RED).
Power source
DC IN 12V
4A: AC/DC adaptor
(AC 100 - 240 V ~ 50/60 Hz)
Power
consumption
consumption
Power on: 12 W
Power Stand-by: 0.6 W (*)
Power Stand-by: 0.6 W (*)
Output power
Front Speaker:
RMS: 10 W (5 W + 5 W) (10% T.H.D.)
RMS: 9.6 W (4.8 W + 4.8 W) (0.9% T.H.D.)
Centre Speaker:
RMS: 7 W (10% T.H.D.)
RMS: 6.5W (0.9% T.H.D.)
Subwoofer:
RMS: 15 W (10% T.H.D.)
RMS: 9.8 W (0.9% T.H.D.)
RMS: 10 W (5 W + 5 W) (10% T.H.D.)
RMS: 9.6 W (4.8 W + 4.8 W) (0.9% T.H.D.)
Centre Speaker:
RMS: 7 W (10% T.H.D.)
RMS: 6.5W (0.9% T.H.D.)
Subwoofer:
RMS: 15 W (10% T.H.D.)
RMS: 9.8 W (0.9% T.H.D.)
Speaker
3.1-way Speaker System
Front Speakers: 40 mm (1-9/16") Full Range (x 2)
Impedance: 12 ohms / Channel
Centre Speakers: 40 mm (1-9/16") Full Range (x 2)
Impedance: 6 ohms
(12 ohms x 2 parallel connections)
Subwoofer: 57 mm (2-1/4") Woofer (x4)
Impedance: 3 ohms
(12 ohms x 4 parallel connections)
Front Speakers: 40 mm (1-9/16") Full Range (x 2)
Impedance: 12 ohms / Channel
Centre Speakers: 40 mm (1-9/16") Full Range (x 2)
Impedance: 6 ohms
(12 ohms x 2 parallel connections)
Subwoofer: 57 mm (2-1/4") Woofer (x4)
Impedance: 3 ohms
(12 ohms x 4 parallel connections)
Audio output
terminals
terminals
Subwoofer Pre Out: 10 k ohms
Input terminals
Analogue input (LINE 1): RCA type x 1pair (L/R)
500 mV/47 k ohms
Analogue input (LINE 2): Stereo mini socket Ø 3.5 mm
100 mV/47 k ohms
500 mV/47 k ohms
Analogue input (LINE 2): Stereo mini socket Ø 3.5 mm
100 mV/47 k ohms
Dimensions
Width: 985 mm (38-3/4")
Height: 96 mm (3-3/4")
Depth: 70 mm (2-3/4")
Height: 96 mm (3-3/4")
Depth: 70 mm (2-3/4")
Weight
2.15 kg (4.74 lbs.)
1 – 1
HT-SB400
– 2
[2] Names Of Parts
Front panel
Rear Panel
1. Audio Line In 2 Socket
2. Line In 1 Sockets
3. DC Input Socket
4. Subwoofer Pre-Out Socket
2. Line In 1 Sockets
3. DC Input Socket
4. Subwoofer Pre-Out Socket
1. Remote Control Transmitter
2. Cinema/Game Button
3. News Button
4. Volume Up Button
5. Volume Down Button
6. Dimmer/Sensor On/Off Button
7. Bass/Treble Button
8. TV Operation Buttons
9. On/Stand-by Button
10. Sport Button
11. Standard Button
12. Line 1 - 2 Button
13. Mute Button
14. Subwoofer Level Up Button
15. Subwoofer Level Down Button
16. Center Speaker Level Up Button
17. Center Speaker Level Down Button
2. Cinema/Game Button
3. News Button
4. Volume Up Button
5. Volume Down Button
6. Dimmer/Sensor On/Off Button
7. Bass/Treble Button
8. TV Operation Buttons
9. On/Stand-by Button
10. Sport Button
11. Standard Button
12. Line 1 - 2 Button
13. Mute Button
14. Subwoofer Level Up Button
15. Subwoofer Level Down Button
16. Center Speaker Level Up Button
17. Center Speaker Level Down Button
Remote Control
SOUND BAR SYSTEM HT-SB400
SOUND BAR SYSTEM HT-SB400
VOL
VOL
STANDARD
STANDARD
SPORT
SPORT
NEWS
NEWS CINEMA/GAME
CINEMA/GAME
FUNCTION
FUNCTION
ON/STAND-BY
ON/STAND-BY
VOL
VOL
11 12
12 16
14
15
13
13
1
2
4
3
5 6 7
8 9 10
SOUND BAR SYSTEM HT-SB400
SOUND BAR SYSTEM HT-SB400
VOL
VOL
STANDARD
STANDARD
SPORT
SPORT
NEWS
NEWS
CINEMA/GAME
CINEMA/GAME
FUNCTION
FUNCTION
ON/STAND-BY
ON/STAND-BY
VOL
VOL
1
4
2 3
LEFT
LEFT
RIGHT
RIGHT
AUDIO
AUDIO
LINE IN 1
LINE IN 1
DC IN
DC IN
LINE IN 2
LINE IN 2
SUBWOOFER
SUBWOOFER
PRE-OUT
PRE-OUT
1
9
10
13
14
15
16
17
12
11
2
3
4
6
5
7
8
TV Operation Buttons (Only SHARP TV):
On/Stand-by
Button
Button
Sets the TV
power to “ON”
or “STAND-
BY”.
power to “ON”
or “STAND-
BY”.
Input Select
Button (TV)
Button (TV)
Press the
button to
switch the
input source.
button to
switch the
input source.
Volume Up
and Down
Buttons
and Down
Buttons
Turn up/down
the TV
volume.
the TV
volume.
Channel Up
and Down
Buttons
and Down
Buttons
Switch up/
down the TV
channels.
down the TV
channels.
1. Remote Sensor
2. Information Display
3. On/Stand-by Pad/Indicator
4. News Pad/Indicator
5. Cinema/Game Pad/Indicator
6. Sport Pad/Indicator
7. Standard Pad/Indicator
8. Function Pad/Indicator
9. Volume Down Pad/Indicator
10. Volume Up Pad/Indicator
11. Left Front Speaker
12. Bass Reflex Duct
13. Subwoofers
14. Left Centre Speaker
15. Right Centre Speaker
16. Right Front Speaker
2. Information Display
3. On/Stand-by Pad/Indicator
4. News Pad/Indicator
5. Cinema/Game Pad/Indicator
6. Sport Pad/Indicator
7. Standard Pad/Indicator
8. Function Pad/Indicator
9. Volume Down Pad/Indicator
10. Volume Up Pad/Indicator
11. Left Front Speaker
12. Bass Reflex Duct
13. Subwoofers
14. Left Centre Speaker
15. Right Centre Speaker
16. Right Front Speaker
Notes:
Some models of SHARP TV may not be operable.
SHARP TV remote will not work with HT-SB400 system.
SHARP TV remote will not work with HT-SB400 system.
1 – 2
