KYE Systems Corp. Genius SP-HF 2.1 800 User manual

Service Guide SP-HF 2.1 800
SERVICE GUIDE
KYE SYSTEM CORP
Version 1.0 Page 1 of 21

Service Guide SP-HF 2.1 800
Revision History
Version Date Change
1.0 24/06/2011
Version 1.0 Page 2 of 21

Service Guide SP-HF 2.1 800
Revision History………………………………………………………………….2
Table of contents……………………………………………………………...…3
Getting Start…………………………………………………….………………...4
Conventions Used in this Guide…………………………………………….…4
Safety Precautions………………………………………………………………4
Chapter 1. How to Handle Defective Returns……………………………….5
1.2 Problem………………………………………………………………………6
1.2.1 No power，LED （indicator）unlighted……………………………….7
1.2.2 No sound…………………………………………………………….…….8
1.2.3 Right/ left channel no sound…….……….……….……….……….……9
1.2.4 Woofer no sound….………..….……..….……….……….……….……10
1.2.5 Noise…………….………………………………………………….…..…11
1.2.6 Cable remote LED indicators no light……………………………..….12
1.2.7 Woofer colorful LED no light or abnormal…………………………………………13
Chapter 2. Specification…………………………………………………..……14
Satellite…………………………………………………………………….…….14
Woofer……………………………………………………………………………14
Chapter 3. Block diagram…………………………………………..………….15
Chapter 4. Exploded view………………………………………………………16
Subwoofer……………………………………………………………….……….16
Satellite…………………………………………………..…….…………………17
Cable Remote……………………………………………………………………18
Chapter 5. Part list…………………………………… …………….…………...19
Woofer………………………………………………………….……………….. 19
Satellite…………………………………………………………………………...19
Cable remote……………………………………………………………………..19
Chapter 6 Important notes……………………………………………………….20
Chapter 7 Schematic diagram……………………………………………………21
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Table of Contents

Service Guide SP-HF 2.1 800
Getting Started
Conventions Used in the 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 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.
Preventforeignsubstance,such as water, other liquids or chemical, from entering
the speakers while performing maintenance procedures on the speakers.
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Service Guide SP-HF 2.1 800
Chapter 1. How to Handle Defective Returns
1.1 Overview
Function NG Function OK
FunctionNG
FunctionOK
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Receiving Defective speaker from customers
Verifying problems
Proceeding
Necessary tests
Verifying problems
Proceeding
Necessary tests
Analyzing possible
Malfunction cause
Deciding & proceeding the
Rectification methods
Replace necessary
Defective parts
Return the speakers with proper
repacking to customers

Service Guide SP-HF 2.1 800
1.2 Problems
Item Problem Description
1.2.1 No power，LED （indicator）no light
1.2.2 No sound
1.2.3 Right channel no sound
1.2.4 Left channel no sound
1.2.5 Woofer no sound
1.2.6 Noise
1.2.7 LEDindicatorsnolight
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Service Guide SP-HF 2.1 800
*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 power，LED （indicator）unlighted
Problem
Analyze
and
identify
the
causes
Solutions
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Repair or replace
Defective
transformer
Defective or damaged AC cable,
or power switch; or the loose
connection between AC cable
and power switch
Resolder or replace
No power，LED （indicator）unlighted
Defective soldering between
transformer secondary wire and
YM6111-2.1 AMP PCB board.
Copper foil of the YM6111- 2.1LAMP
PCB broken
Repair or replace

Service Guide SP-HF 2.1 800
1.2.2 no sound
Problem
Analyze and
identify the
causes
]
Solutions
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VR1 in YM-C19 CON
PCB damaged or the
connection wires
loosely soldered
Connection wires of
YM6111-2.1L AMP broken
or dry soldered.
No sound
Repair or replace
Repair or replace
PCB short-circuited, dry
soldered or damaged
Cooper foil broken or dry
soldered
Repair, resolder or
replace

Service Guide SP-HF 2.1 800
1.2.3 Right /Left channel no sound
Problem
Analyze and
identify the
causes
Solutions
Version 1.0 Page 9 of 21
Right /left channel no sound
Audio cable damaged
or defective
Speaker cable
damaged or defective
Driver unit
dry-soldered or
defective
1.Connection wires of
YM6111-2.1L AMP broken or
dry soldered.
2. U4, U3 in YM6111-2.1L
AMP damaged
Replace or
replace
Re-connect ,
replace or repair
PCB damaged, dry-soldered or
short-circuited
VR1 in YM-C19 CON PCB
damaged or the connection
wires loosely soldered
Repair or
replace