KYE Systems Corp. Genius SP-i170 Manuale utente

Service Guide Model No : SP-i170

SERVICE GUIDE

KYESYSTEMS CORP.

Page 1/15

Service Guide Model No : SP-i170

Revision His ory

Version

Date

Change

1.0

24/08/2010

First Release

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Service Guide Model No : SP-i170

Table of Con en s

Revision History …………………………………………………………………….2

Ta le 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 LED no light

1.3 Power/Volume Kno 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 Assem ly y Post …..16

7.2 Short of Spare Parts while Repairing a Speaker System …………16

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Service Guide Model No : SP-i170

Ge ing S ar ed

Conventions Used in this Guide

Pay Special Attention : Instructions that are important to remem er and

may prevent mistakes .

Caution : Information that, if not followed, may result in damage to the

product .

Safety Precautions

The following precautions should e o served in handling the speaker

Descri ed in this guide :

Place the speakers on a flat, level and sta le surface.

Do not place the speakers in environments su ject to mist, smoke,

vi ration, 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 su woofer 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 efore performing

any maintenance on the speakers .

Do not perform any maintenance with wet hand .

Prevent foreign su stances, 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 : SP-i170

Chap er 1. How o Handle Defec ive Re urns

Overview

Receiving Defective speakers from

Customers

Function NG

__ __

Analyzing possi le malfunction

causes

Function NG Deciding & proceeding the

rectification methods

Function OK

Replace necessary defective parts

Function OK

Return the speakers with proper

repackaging to customers

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Service Guide Model No : SP-i170

Pro lems

Item Pro lem Description

1.1 Speaker no sound

1.2 LED no light

1.3 Power/Volume Kno no function

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Service Guide Model No : SP-i170

Attention

Please follow the num ered sequence marked within parenthesis given in individual Flow

chat, in that this is the est-recommended sequence to rectify the pro lems.

1.1 Speaker no sound (Line in jack no function)

Pro lem

Analyze

and

Identify

Cause

Solution

Speaker no sound

Component cold

solder or Short

Circuit

Defective U1

Speaker ca le disconnect,

J1 defective or speaker

damaged

Check solder

point on PCBA

Check and

Replace defective

Reconnect speaker ca le or

replace defective speaker

driver and component

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Service Guide Model No : SP-i170

1.2 LED no light

Pro lem

Analyzer and

Identify the Causes

Solutions

Power LED no light

Component cold

solder or Short

Circuit

Defective U2,Q1

or Q2

BT1 or LD1 defective

Check solder

point on PCBA

Check and

Replace defective

or Transistor

Replace defective LED or

Battery

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Service Guide Model No : SP-i170

1.3 Power/Volume Kno no function

Pro lem

Analyzer and

Identify the Causes

Solution

Bass/Volume no function

Component cold

solder or Short

Circui

VR1 efective

Check solder

point on PCBA

Replace defective VR1

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Service Guide Model No : SP-i170

Chap er 2. Specifica ions

NO.

Descrip ion

Uni

Specifica ions

Ou Power a THD 10%

≧1.5

Sensi ivi y

600± 60

Freq. Response (1KHz -3dB)

70~20K ± 10%

4 S/N ra io

≧

≧≧

≧ 70

5 Hum & Noise (Vol.: max)

≦

≦≦

≦ 2

Page 10/15

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