Genius Sp Hf500a

7/22/2019 Genius Sp Hf500a

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SP-HF500AService Guide

SERVICE GUIDE

KYE SYSTEM CORP

Version 1.0 Page 1 of 17


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Service Guide

Revision History

Version Date Change

1.0 07/08/2009


SP-HF500A


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Service Guide


Table of Contents

SP-HF500A

no power .LED (indicator) unlighted ..................................................5

Safety Precautions ................................................................................4

Part List .................................................................................................17

No sound ................................................................................................6

Right or left channel no sound ............................................................7

Chapter 7. Schematic diagram...........................................................16

Chapter 4 Exploded view...............................................................14~15

Chapter 2.Specifications......................................................................11

VR,headphone jack or line-in jack abnormal ....................................10

Headphone jack output no sound........................................................9

LED indicator no light...........................................................................8


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Getting Start

Pay S pecial Attention: Instructions that are i mportant to remember and may

prevent m istakes.

Caution: Info rmation that, if not followed, may result in d amage to theprod uct.

Safety Precautions

Do never place the system in the high-temp and humidity circumstance,

prevent it from raining or rough h andling and strong shock.

* In or der to a void electrified and other accidents, do never open the back

cover for repair without an y professional guidance. In case of repair pls.

come to the professional maintenance for help.

* In case fragments or other liquid is accidentally sprinkled inside the

cabinet, please switch off the po wer immediately.

* Swi tch off the power and take off the plug from the power jack w hen

the system is not on work.


Version 1.0 Page 4 17of


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Service Guide


SP-HF500A


*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 No powerLED indicatorunlighted

Problem

Analyze

and

identify

the

causes

Solutions

No powerLED indicatorunlighted

Repair or replace

Defective transformer

Defective or damaged

AC cable or power

switch

resolder or replace

Or caused by the following:

1. Transformer secondary wire loosely connected with 1CN5

jack in SP-HF500 AMP .

2. Copper foil ofSP-HF500AMP PCB broken


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1.2.2 No sound

Problem

Analyze and

identify the

causes

]

Solutions

No sound

PCB

short-circuited, dry

soldered or

broken;

1CN2 1CN3 SP-HF500A and1CN4

in SP-HF500A AMP is not

properly connected

Repair or replace

Repair or replace

Or caused by the following defective

components

1. U1, U2 in SP-HF500AAMP PCB

2. VR1N1N2 in SP-HF500A AMP

PCB

Repair, resolder or

replace


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Service Guide SP-HF500A

1.2.3 Right or left channel no sound

Problem

Analyze and

identify the

causes

Solutions

Replace or

replace

Re-connect ,

replace or repairRepair or

replace

1. VR1 VR2 N1 N2 defective in SP-HF500A

AMP PCB

2. Or caused by the following defective

:stnenopmoc

R8 R2 R4 R14 C10 C5 R27 R28 C7 C9 C32C14 C20 C31 U1 U2 SPL

Driver unit 1CN2 1CN3

or speaker

cable defective or

loosely connected

AUDIO JACK 1N1

defective or looselyconnected

PCB damaged, dry-soldered

or short-circuited;

AUDIO CABLE 1CN4

in SP-HF500 AMP is loosely

connected

Right or left channel no sound


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1.2.5 Noise

Problem

Analyze and

identify the

causes

Solutions

Filter capacitor/ diode dry-soldered

or damaged, pls check C19 C21C18C17 C13 ID1 ID2 ID3 ID4

in S P - H F 5 0 0 AMP defective

or not

The power supply of each IC isnormal or not;

Or caused by vibration from

too long lead wire of driver

units

Driver units damaged

Dosed not well

RepairCheck and replace Repair or replace

Noise


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Version 1.0 Page 9 of17

SP-HF500A


1.2.6 LED indicator no light

Problem

Analyze and

identify the

causes

Solutions

Check and replace

1. PCB damaged, dry-soldered or short-circuited

2. R1 in SP-HF500A AMP PCB R1defective

3. Defective LED1 in SP-HF500A AMP PCB

LED indicator no light


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Version 1.0 Page 10of17


1.2.7 Headphone jack output no sound

Problem

Analyze and

identify the

causes

Solutions

Check and replace

N1 in SP-HF500A AMP PCB defective or its

related copper foil broken

Headphone jack no sound


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VR:

Defective VR may cause VR1 in

S P - H F 5 0 0 A Z M P PCB or VR2 in

S P - H F 5 0 0 A PCB having scratching

sound when rotating

Version 1.0 Page 11of 17


1.2.8 VR, headphone jack or line-in jack abnormal

Problem

Analyze and

identify the

causes

Solutions

Check and replace Check and replace

Jack:

N1 N2 in SP-HF500A AMP PCB

defective

VR, headphone jack or line-in jack abnormal


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SP-HF500A


8.3

620

180

395

0.5 0.4

29

20K

46

0.9

0.6 0.7

1

47

20K 20K

28 30

390

185

625

8.4

180

390

S/N@RATED O/P POWER


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AUX1

AUX2

MASTER

VOLUME

4558

TD

A7266SA

L

POWER

AMP

FILTER

POWER

SPEAKER

SATELLITE

R

SPEAKER

SATELLITE

PHO

NE

JACK

TREBLE




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SP-HF5

00A


SP-HF500AChapter 4 Exploded view

Right Satellite
http://www.pdffactory.com/


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SP-HF500A


SP-HF500A

Left SatelliteChapter 4 Exploded view
http://www.pdffactory.com/


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Cha ter 7. Schematic dia ram




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Part List

Part No. Description

21.4.014.0055 Knob 1

21.4.014.0056 Knob 2

21.6.020.0024 Wood Cabinet

11.2.001.0075 Transformer

11.1.170.0056 IC UTC4558

11.1.170.0114 IC TDA7266SA

11.1.260.0627 PCB

21.8.030.0015 Speaker Unit 3"810W

21.8.913.0006 0.5" 8 5W

11.3.001.0026 AC cable


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