Genius SW-2.1 355 Manuale utente

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SW-2.1 355SW-2.1 355

SERSER

VICE VICE

GUIDEGUIDE

EY SYSTEM COEY SYSTEM CO

RPRP

Version Version

1.0 1.0

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1 1

of of

2020

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SW-2.1 355SW-2.1 355

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on on

istoisto

ryry

Version Date ChangeVersion Date Change

1.0 15/11/20071.0 15/11/2007

Version Version

1.0 1.0

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2 2

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SW-2.1 355

Revis

His

………

….2

ent

s……………

………

...…3

tti

Sta

…………………………………………………….………………...4

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

Safety Precautions………………………………………………………………

Cha

pter 1. How t

o Handle Defe

cti

ve Re

tur

……………………………….5

1.2 Problem

………………………………………………………………………6

1.2.1 No power

，

LED

（

indicator

）

unlighted……………………………….

1.2.2 No sound

…………………………………………………………….…….8

1.2.3 Right channel no sound

….……….……….……….……….……….……9

1.2.4 Left channel no sound

….……….……….……….……….……….……10

1.2.6 Woofer no sound

………………………………………………….…..…11

1.2.9 Noise………………………….……………………….……………..….

1.2.10 LED indicators no light……………………………………….………..

Chapt

2. Speci

cat

n……………

………

……..

……14

Satellite…………………………………………………………………….…….14

Woofer……………………………………………………………………………14

Chapt

er 3. Bl

k d

iag

ram

………

…..……

…….1

Chapt

4. Exp

ded

ew…………

………

……16

Subwoofer……………………………………………………………….……….16

Satellite…………………………………………………..…….…………………17

Chapt

5. Part

………

…… …………

….……

……..

.18

Woofer………………………………………………………….……………….. 18

Satellite…………………………………………………………………………...18

Chapter 6 Important notes……………………………………………………….19

Chapter 7 Schematic diagram……………………………………………………20

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1.0

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onte

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SW-2.1 355

g S

tarted

Conventions

Use

d in

the Guide

Pay Spec

ial 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 handing 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.

Do not perform any maintenance with wet hand.

Prevent foreign substance, such as water, other liquids or chemical, from

entering

the speakers while performing maintenance procedures on the speakers.

Version

1.0

Page

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SW-2.1 355

Cha

er 1

. H

le De

fect

e R

eturn

1 Overvi

Function NG

Function OK

Function NG

Function OK

Version

1.0

Page

Receiving Defective speaker from customers

Verifying problems

Proceeding

Necessary tests

Return the speakers with proper

repacking to customers

Analyzing possible

Malfunction cause

Deciding & proceeding the

Rectification methods

Replace necessary

Defective parts

Verifying problems

Proceeding

Necessary tests

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SW-2.1 355

1.2 Problems

Ite

robl

scrip

tion

1.2.1

power

，

LED

（

indicator

）

no light

1.2.2

sound

1.2.3

Right

channel

sound

1.2.4

Left

channel

sound

1.2.5

Woofer

sound

1.2.6 Noise

1.2.7

LED

indicators

light

Version

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SW-2.1 355

*Attention

Please follow the numbered sequence marked within parenthesis given in

individual

Flow chat in that this is the

best-recommende

d sequence to rectify the problems.

1.2.1 No power

Problem

Analyze

and

identify

the

causes

Solutions

Version

1.0

Page

Defective soldering of transformer

secondary

wire

and

CON4

PCB

board

No power

，

LED

（

indicator

）

unlighted

Repair or replace

resolder or replace

Repair or replace

Defective or

damaged AC cable,

or power switch

Defective

transformer

LED indicator

unlighted

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SW-2.1 355

2 no s

Problem

Analyze and

identify the

causes

]

Solutions

Version

1.0

Page

Input cable

damaged or

defective

8P assembled line

defectively

connected between

CON1 and CON2

PCB

short-circuited, dry

soldered or

damaged

Repair

resolder

or

replace

Repair or replace

Defective

components

of VR1, JK1,

U1, U2,

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SW-2.1 355

Right

channel

sou

Problem

Analyze and

identify the

causes

Solutions

Version

1.0

Page

Input cable

damaged or

defective

Right Speaker

cable damaged or

defective

Right driver unit

dry-soldered o

r

defective

1. Defective JK1, JK2

2. Defective assembled line

between CON1 and CON2

3. Defective or dry-soldered

，

R19

，

C10

，

or VR1

Replace or

replace

Replace or

replace

Re-connect ,

replace or repair

PCB damaged,

dry-soldered or

short-circuited

Repair or

replace

Right channel no sound

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SW-2.1 355

4 Left chann

no so

Problem

Analyze and

identify the

causes

Solutions

Version

1.0

Page

Input cable

damaged or

defective

Left Speaker cable

damaged or

defective

Left driver unit

dry-soldered or

defective

1. Defective JK1, JK2

2. Defective assembled line

between CON1 and CON2

3. Defective or dry-soldered

，

R20

，

C11

，

VR1

Repair or

replace

Repair or

replace

Re-connect,

replace or repair

PCB damaged,

dry-soldered or

short-circuited

Repair or

replace

Left channel no sound

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