Genius SP-HF800A Service manual

Service Guide SP-HF800A

SERVICE GUIDE

KYE SYSTEMS CORP

Version 1.0 Page 1 of 15

SP-HF800A

Version:1.0

Service Guide SP-HF800A

Revision History

Version Date Change

1.0 06/20/2011

Version : 1.0 Page 2 of 15

Service Guide SP-HF800A

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 Overview …………………………………………………………..5

1.2 Problems …………………………………………………………...6

1.2.1 One or more channels no sound ………………..…7

1.2.2 Power LED (indicator) no light………………....…8

1.2.3 Volume no function...…………………….………..8

Chapter 2. Specifications …………………………………………………………9

Chapter 3. Block Diagram ……………………………………………………….11

Chapter 4. Exploded View ……………………………………………………….12

Chapter 5. Part List ………………………………………………………………15

Chapter 6. Schematic Diagram …………………………………………………..17

Chapter 7. Important Notes ………………………………………………………19

7.1 Packing Requirement for Sending the PCB Assembly by Post …..19

7.2 Short of Spare Parts while Repairing a Speaker System …………19

Version : 1.0 Page 3 of 15

Service Guide SP-HF800A

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 .

Version : 1.0 Page 4 of 15

Service Guide SP-HF800A

p

p

y

g

y

Chapter 1. How to Handle Defective Returns

1.1 Overview

Receiving Defective speaker form customers

Verifying problems
proceeding
necessar

Function NG

tests

Analyzing possible

malfunction causes

Deciding & proceeding the

rectification methods

Replace necessary

defective

Proceeding tests to
verify if the speaker is
functionin

arts

normall

Function OKFunction NG

Function OK

Return the speakers with proper

re

ackaging to customers

Version : 1.0 Page 5 of 15

Service Guide SP-HF800A

1.2 Problems

Item Problem Description

1.2.1 One or more channels no sound

1.2.2 Power LED (indicator) no light

1.2.3 Volume no function

Version : 1.0 Page 6 of 15

Service Guide SP-HF800A

Attention

Please follow the numbered sequence marked within parenthesis given in individual

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

1.2.1 One or more channels no sound

Problem

Analyzer and

Identify the Causes

Solutions

Broken or short circuit

Check solder points on

PCB

One or more channels no sound

Defective U1，K3，K2

Check and Replace

defective U1,K3,K2

Speaker cable dis-connect or

speaker damaged

Re-connect speaker cable or

replace defective speaker(s)

Version : 1.0 Page 7 of 15

Service Guide SP-HF800A

Version : 1.0 Page 8 of 15

1.2.2 Power LED (indicator) no light

Problem

Solutions

1.2.3 Volume no function

Problem

Solutions

Power LED (indicator) no light

Power switch or LED defective

Defective K3,U3,

F1,R21

Ac cord of transformer

disconnected or defective

Re-solder or replace

defective component(s)

Analyzer and

Identify the Causes

Volume no function

Broken or short circuit

Defective K3，J3

Check solder points on PCB

Analyzer and

Identify the Causes

Check and Replace defective

components

Service Guide SP-HF800A

Chapter 2. Specifications

NO. Description Unit Specifications

1 Out Power at THD 10% W

2 Sensitivity mV

3 Freq. Response (Ref:-3dB) Hz 45Hz ~ 20KHz

4 Separation dB

6 Hum & Noise (Vol.: max) mV

>

10

600 ± 60

>

50

>

65

Bd oitar N/S 5

<

3

Version : 1.0 Page 9 of 15

Service Guide SP-HF800A

Version : 1.0 Page 10 of 15

Chapter 3. Block Diagram

R.CH Speaker

L.CH Speaker

Power

AUDIO IN

Amplifier

Signal Amplifler

AC IN

EQ Volume

Power

Conditioner

Version 1.0 Page 11 of 15

Chapter 4. Exploded View

Host (Woofer)

Service Guide SP-HF800A

Service Guide

SP-HF800A

Satellite

Version 1.0 Page 12 of 15

Service Guide SP-HF800A

Version : 1.0 Page 13 of 15

Chapter 5. Part List

NO. Qty UNIT

1 1 PC

2 1 PC

3 1 PC

4 1 PC

5 1 PC

6 1 PC

1 PC

7

1 PC

8

1 PC

PartNo.

101123160109

LOUD SPEAKER 2 8"OHM 8W 20280200080011

403901690109

403902430209

CARTON,SP-HF800A0

GLFT BOX,SP-HF800A/230V-EU(NO PMOP)EU

403000590109

412400240108

4622123160099

4621123160099

PCBA SP-HF800A 301123160109

IC MC4558

IC HF 01B01

IC HF STA540

Tran sformer EE20 FX0115

SP-HF800A/BODY-230V-EU

Service Guide SP-HF800A

Chapter 6. Schematic Diagram

SP-HF 800A SW POWER+AMP SCH A.1 20110511.sch-1 - Thu Jun 16 11:15:10 2011

Version : 1.0 Page 14 of 15

Service Guide SP-HF800A

Chapter 7. Important Notes

7.1 Packing Requirement for Sending the PCB Assembly by Post

PCB assembly is a kind of sophisticated electronic circuit board. Well

packing will be required when sending them by post.

* Some sophisticated IC components are mounted on the PCB assembly,

hence it is necessary to pack each PCB assembly with a separate static

protecting bag, in order to avoid static electricity.

* Reliable external packing is also very important when sending PCB

assembly by post, in that it would avoid unnecessarily lost or damage.

7.2 Short of Spare Parts while Repairing a Speaker System

If you are short of spare parts when you have some speaker systems waiting

to be repaired, it would be recommended to take the necessary parts form

one speaker system, so that you may have the as many speaker systems.

Version : 1.0 Page 15 of 15