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HT-SB30

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RRMC

GA32

2AWS

A

CHAPTER 1. GENERAL DESCRIPTION
[1]  Important Service Notes (for U.K. only) ....... 1-1
[2]  AC Power Supply Cord.................................. 1-1
[3] Specifications ..............................................

...... 1-1

[4]  Name Of Parts .............................................

...... 1-2

CHAPTER 2. ADJUSTMENTS
[1] Version 

Check.............................................. 2-1

[2]  Abnormal detection distinction at standby 

LED (Red).................................................... 2-2

CHAPTER 3. MECHANICAL DESCRIPTION
[1] Disassembly ................................................ 3-1

CHAPTER 4. CIRCUIT DESCRIPTION
[1] Voltage......................................................... 4-1

CHAPTER 5. MAJOR PART DRAWING
[1]  Function Table of IC ..................................... 5-1

CHAPTER 6. DIAGRAM
[1] Block 

Diagram ............................................. 6-1

CHAPTER 7. CIRCUIT SCHEMATICS AND PARTS
LAYOUT
[1]  Notes On Schematic Diagram ..................... 7-1
[2]  Type Of Transistor And LED ........................ 7-1
[3] Schematic 

Diagram ..................................... 7-2

[4]  Chart Of Connecting Wires.......................... 7-4
[5]  Wiring Side Of PWB .................................... 7-5

No. S5308HTSB30HE

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.

• In the interests of user-safety the set should be restored

to its original condition and only parts identical to those
specified be used.

HT-SB30

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Example:

Indicates lead-free solder of tin, silver and copper.

Lead-free wire solder for servicing

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.

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 par ts 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.

"MAIN, DISPLAY A,  DISPLAY B 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.

PWB-A 92LPWB8885MANS MAIN

PWB-B 92LPWB8885DPLS DISPLAY A (B1) / DISPLAY B (B2)

i

HT-SB30

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Before returning the unit to the customer after completion of a repair or adjustment it is necessary for the following withstand voltage test to 
be applied to ensure the unit is safe for the customer to use.

Setting of Withstanding Voltage Tester and set.

Set name

set value

Withstanding Voltage Tester
Test voltage

4,240 VPEAK
3,000 VRMS

Set time

6 secs

Set current (Cutoff current)

4 mA

Unit
Judgment
OK: The “GOOD” lamp lights.
NG: The “NG” lamp lights and the buzzer sounds.

PROBE

AC

OUT

AC/DC

ADAPTOR

SHORT-CIRCUIT
AC POWER
SUPPLY CORD

CONNECT THE PROBE

TO SHELL OF DC CONNECTOR

WITHSTANDING

VOLTAGE TESTER

QACCEA011AW002

QACCBA010AW002

Power on: 10 W
Stand-by: 0.4 W

RMS: Total 40 Watts
RMS: 40W (20W + 20W) (10% T.H.D.)
RMS: 28W (14W + 14W) (1% T.H.D.)

2-way Speaker System
5.7cm Woofer
2.5cm Soft Dome

Compatible
Bluetooth
Profile

Width: 940mm
Height: 73mm
Depth: 83mm

2.3kg

DC IN 17V    2.8A: AC/DC adaptor
(AC 100 - 240 V ~ 50/60 Hz)

Analog input (AUDIO IN): 
Stereo mini jack Ø 3.5mm
500mV / 47kohms

2.400GHz - 2.480GHz

A2DP (Advanced Audio Distribution Profile), 
AVRCP (Audio/Video Remote Control Profile)
Bluetooth 2.1 +EDR

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HT-SB30

1 – 4

  1. Remote Control Transmitter
  2. Mute Button
  3. Cinema (Sound Mode) button
  4. Music (Sound Mode) button
 5. Surround Button
  6. Bypass (Sound Mode) button
  7. TV Operation Buttons (only SHARP TV)
 8. Bluetooth Pairing Button
 9. Bluetooth Play/Pause Button
10. Bluetooth Skip Up Button
11. Bluetooth Skip Down Button
12. On/Stand-by Button
13. News (Sound Mode) button
14. Input Button
15. Volume Up/Down Buttons

Some models of SHARP TV may not be operable.
SHARP TV remote control will not work with HT-SB30 system.

On/Stand-by
Button 

Sets the TV
power to “ON”
or “STAND-BY”.

Input Select
Button (TV) 

Press the
button to
switch the
input source. 

Volume Up
and Down
Buttons 

Turn up/down
the TV volume. 

Channel Up
and Down
Buttons 

Switch up/
down the TV
channels.

RRMCGA322AWSA

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