Sharp ht sb 200 service manual

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HT-S B200

SHARP SERVICE MANUAL

SAVING ENERGY

SIANI)-HY POWHI
coNsuMPIIcN 0.6W

SRS C.)
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SR5 C.) is a trademark of SR8 Labs, Inc.
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WOW HD technology is incorporated under license
from SRS Labs Inc.

CONTENTS
/ \

PRECAUTIONS FOR USING LEAD-FREE SOLDER
CHAPTER 1. GENERAL DESCRIPTION
[1] AC Power Supply Cord And AC Plug Adaptor.,1-1

[2] Specifications ..... 1-1
[3] Name Of Parts .. ..... 1-2
CHAPTER 2. ADJUSTMENTS

[1] Test Mode ...................................................... 2-1
CHAPTER 3. MECHANISM BLOCKS

[1] Disassembly .................................................. 3-1
CHAPTER 4. DIAGRAMS

[1] Block Diagrams ............................................. 4-1

CHAPTER 5. CIRCUIT DESCRIPTION
[1] Voltage .......................................................... 5-1

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N0. S1902HTSB200W

SOUND BAR SYSTEM

MODEL HT-SBZOO

[ ASIA, EX]

- In the interests of user-safety the set should be restored
to its original condition and only parts identical to those
specified be used.

CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS
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. ..... 6-8
[5] Wiring Side Of PWB .................................... 6-10
CHAPTER 7. OTHERS

[1] Function Table Of IC ...................................... 7-1

PARTS GUIDE

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Parts marked with " A' 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.

This document has been published to be used
8 HARP CO RPO RATIO N for after sales service only.

The contents are subject to change without notice.

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HT-SBZOO
PRECAUTIONS FOR USING LEAD-FREE SOLDER

1.Employing lead-free solder

"MAIN, POWER, AMPLIFIER 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.

Example: EEa

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

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.

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.

Lead-free wire solder for servicing

Ref No. Parts No. Description

PWB-A 92LPWB7387MANS MAIN (A1) / POWER (A2) / AMPLIFIER (A3) [ For Brazil and Taiwan Only]

PWB-A 92LPWB7388MANS MAIN (A1) / POWER (A2) / AMPLIFIER (A3) [ Except Indonesia, Brazil and Taiwan]
PWB-A 92LPWB7394MANS MAIN (A1) / POWER (A2) / AMPLIFIER (A3) [ For Indonesia Only]