Service Guide Model No : SW-G2.1 1250
SERVICE GUIDE
KYESYSTEMS CORP.
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Service Guide Model No : SW-G2.1 1250
Revision History
Version
1.0
Date
03/09/2010
Change
First Release
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Service Guide Model No : SW-G2.1 1250
Table of Contents
Revision History …………………………………………………………………….2
Table of Contents ……………….……………………………………………………3
Getting Started ……………………………………………………………………….4
Conventions Used in this Guide ……………………….…..………………....4
Safety Precautions …….……………………………………………………..4
Chapter 1. How to Handle Defective Returns……………………………………..5
1.1 Speaker no sound
1.2 Power LED no light
1.3 Headphone no sound
1.4 Bass/Volume no function
Chapter 2. Specifications ………………………………………………………….10
Chapter 3. Block Diagram ……………………………………………………….11
Chapter 4. Exploded View …………………………………………………12 & 13
Chapter 5. Part List ………………………………………………………………14
Chapter 6. Schematic Diagram …………………………………………………..15
Chapter 7. Important Notes ………………………………………………………16
7.1 Packing Requirement for Sending the PCB Assembly by Post …..16
7.2 Short of Spare Parts while Repairing a Speaker System …………16
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Service Guide Model No : SW-G2.1 1250
Getting Started
Conventions Used in this Guide
Pay Special Attention : Instructions that are important to remember and
may prevent mistakes .
Caution : Information that, if not followed, may result in damage to the
product .
Safety Precautions
The following precautions should be observed in handling the speaker
Described in this guide :
Place the speakers on a flat, level and stable surface.
Do not place the speakers in environments subject to mist, smoke,
vibration, excessive dust, salty or greasy air, or other corrosive gases
and fumes.
Do not drop or jolt the speakers.
Do not allow anything to drop into the subwoofer case through its
ventilator, as it could result in fatal electric shock or fire .
Place the unit far enough from other equipments for good heat
dissipation .
Disconnect the AC power cord from the AC outlet before performing
any maintenance on the speakers .
Do not perform any maintenance with wet hand .
Prevent foreign substances, such as water, other liquids or chemicals ,
From entering the speakers while performing maintenance procedures
on the speakers .
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Service Guide Model No : SW-G2.1 1250
Chapter 1. How to Handle Defective Returns
Overview
Receiving Defective speakers from
Customers
Function NG
__ __
Analyzing possible malfunction
causes
Function NG
Deciding & proceeding the
rectification methods
Replace necessary defective parts
Function OK
Return the speakers with proper
repackaging to customers
Function OK
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Service Guide Model No : SW-G2.1 1250
Problems
Item Problem Description
1.1 Speaker no sound
1.2 Power LED no light
1.3 Headphone no sound
1.4 Bass/Treble/Volume no function
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