KYE Systems Corp. Genius SP-I400 Manuale utente

Service Guide Model No : SP-I400

SERVICE GUIDE

KYESYSTEMS CORP.

Page 1/15

Service Guide Model No : SP-I400

Revision His ory

Version

Date

Change

1.0

08/04/2011

First Release

2.0

14/04/2011

Data Update

Page 2/15

Service Guide Model No : SP-I400

Table of Con en s

Revision Histor …………………………………………………………………….2

Table of Contents ……………….……………………………………………………3

Getting Started ……………………………………………………………………….4

Conventions Used in this Guide ……………………….…..………………....4

Safet Precautions …….……………………………………………………..4

Chapter 1. How to Handle Defective Returns……………………………………..5

1.1 Speaker no sound

1.2 LED no light

1.3 Power/Volume Knob 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 Assembl b Post …..16

7.2 Short of Spare Parts while Repairing a Speaker S stem …………16

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Service Guide Model No : SP-I400

Ge ing S ar ed

Conventions Used in this Guide

Pa Special Attention : Instructions that are important to remember and

ma prevent mistakes .

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

product .

Safet 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, salt or greas air, or other corrosive gases

and fumes.

Do not drop or jolt the speakers.

Do not allow an thing 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

an maintenance on the speakers .

Do not perform an 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 .

Page 4/15

Service Guide Model No : SP-I400

Chap er 1. How o Handle Defec ive Re urns

Overview

Receiving Defective speakers from

Customers

Function NG

__ __

Anal zing possible malfunction

causes

Function NG Deciding & proceeding the

rectification methods

Function OK

Replace necessar defective parts

Function OK

Return the speakers with proper

repackaging to customers

Page 5/15

Service Guide Model No : SP-I400

Problems

Item Problem Description

1.1 Speaker no sound

1.2 LED no light

1.3 Power/Function Knob no function

1.4 Card Reader no function

Page 6/15

Service Guide Model No : SP-I400

Attention

Please follow the numbered sequence marked within parenthesis given in individual Flow

chat, in that this is the best-recommended sequence to rectif the problems.

1.1 Speaker no sound

Problem

Anal ze

and

Identif

Cause

Solution

Speaker no sound

Component cold

solder or Short

Circuit

Defective U2, U5,

Speaker cable disconnect,

USBJack1, CN1

defective or speaker

Check solder

point on PCBA

Check and

Replace defective

Reconnect speaker cable or

replace defective speaker

driver and component

Page 7/15

Service Guide Model No : SP-I400

1.2 LED no light

Problem

Anal zer and

Identif the Causes

Solutions

1.3 Power/Function Knob no function

Problem

Anal zer and

Identif the Causes

Solutions

Power LED no light

Component cold

solder or Short

Circuit

Defective U1, U2,

U4, U6, U7 or Y1

BT1 or D1, D2 defective

Check solder

point on PCBA

Check and

Replace defective

or Cr stal

Replace defective LED or

Batter

Page 8/15

Power/Function Knob no

function

Component cold

solder or Short

Circuit

Defective U2 or

VR-SW J1 or SW1 ,SW2,

SW3, SW4 defective

Check solder

point on PCBA

Check and

Replace defective

or Cr stal

Replace defective VR or

Tact SW

Service Guide Model No : SP-I400

1.4 Card Reader no function

Problem

Anal zer and

Identif the Causes

Solution

Card Reader no function

Component cold

solder or Short

Circuit

U2, U6 or CN1 defective

Check solder

point on PCBA

Check and Replace

defective U2, U6 or CN1

Page 9/15

Service Guide Model No : SP-I400

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)

200~20K ± 10%

4 S/N ra io

≧

≧≧

≧ 70

5 Hum & Noise (Vol.: max)

≦

≦≦

≦ 2

Page 10/15

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