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KYE Systems Corp. Genius SW-HF 2.1 1800K, Service Manual

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KYE Systems Corp. Genius SW-HF 2.1 1800K Service Manual Download Page 5

Service Guide

                                                                     

SW-HF 2.1 1800K 

 
 
 

               

Chapter 1. How to Handle Defective Returns 

1.1 Overview 

 

 

 

                                                       

                                                 

 

 

Function NG

                                                       

  Function OK 

                                                                                  Function NG 

 

 

             

 

 

 

 

 

 

 

 

 

 

 

 

                                                                                    Function OK 

 

 

 

 

 

 

 

 

 

 

                   

             

Version 1.0         Page 5 of 24

 

               

         

Receiving Defective speaker from customers

Return the speakers with proper 
repacking to customers 

Verifying problems   
Proceeding 
Necessary tests

 

Analyzing possible 
Malfunction cause

 

Deciding & proceeding the 
Rectification methods

 

Replace necessary 
Defective parts

 

Verifying problems   
Proceeding 
Necessary tests

 

Summary of Contents for Genius SW-HF 2.1 1800K

Page 1: ...Service Guide SW HF 2 1 1800K SERVICE GUIDE KEY SYSTEM CORP Version 1 0 Page 1 of 24...

Page 2: ...Service Guide SW HF 2 1 1800K Revision History Version Date Change 1 0 17 11 2008 Version 1 0 Page 2 of 24...

Page 3: ...o sound 9 1 2 4 Left channel no sound 10 1 2 5 Woofer no sound 11 1 2 6 Noise 12 1 2 7 LED indicators no light 13 1 2 8 MIC no sound or low sound 14 1 2 9 ECHO no use 15 1 2 9 Some knobs no use 16 Cha...

Page 4: ...rface 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 anyt...

Page 5: ...Version 1 0 Page 5 of 24 Receiving Defective speaker from customers Return the speakers with proper repacking to customers Verifying problems Proceeding Necessary tests Analyzing possible Malfunction...

Page 6: ...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 LED indicators no light 1 2 8 MIC no sound or low sou...

Page 7: ...problems 1 2 1 No power LED indicator unlighted Problem Analyze and identify the causes Solutions Version 1 0 Page 7 of 24 Repair or replace No power LED indicator unlighted Defective transformer Defe...

Page 8: ...No sound Check the wire between AMP PCB JACK1 and MIC JACK1 connected properly or not PCB short circuited dry soldered or broken 1 IC3 in MIC PCB defective 2 Or caused by defective IC2 IC1 IC3 Q1 Q2...

Page 9: ...2 or input jack defective or damaged Right driver unit dry soldered or defective 1 Defective connection between AMP PCB JACK1 and MIC PCB ACK1 2 IC1 or related components damaged in AMP PCB 3 IC3 or r...

Page 10: ...ective connection between AMP PCB JACK1 and MIC PCB JACK1 2 IC2 or related components damaged in AMP PCB 3 IC3 or related components damaged in MIC PCB Input left output cable damaged or defective AMP...

Page 11: ...unit Speaker cable dry soldered or defective Or output tjack3 defective 2 IC3 or related components damaged in AMP PCB 3 IC4 or related components damaged in MIC PCB Repair or replace Repair or repla...

Page 12: ...capacitor diode dry soldered or damaged pls check EC6 EC7 EC11 EC12 EC14 EC15 EC4 EC5 D1 D2 D3 D4 in AMP PCB The power supply of each IC is normal or not Check and replace Repair or replace Repair Dr...

Page 13: ...2 7 LED indicators no light Problem Analyze and identify the causes Solutions Version 1 0 Page 13 of 24 Check and replace 1 LED related circuit in MIC PCB dry soldered or broken 2 R54 R55 LED1 or LED...

Page 14: ...no sound or low sound IC2 JACK2 their related components in MIC PCB or VR2 defective Check and replace IC1 IC5 and its related components IN MIC PCB defective especially R34 ZD1 CC1 or CC8 MIC 2 no s...

Page 15: ...nd identify the causes Solutions Version 1 0 Page 15 of 24 IC5 in MIC PCB works well or not Check and replace Check and replace IC5 s related components especially MC4 MC5 CC10 CC11 MC2 MC3 R32 R33 R1...

Page 16: ...knobs no use Problem Analyze and identify the causes Solutions Version 1 0 Page 16 of 24 Check and replace 1 Any VR or VR related circuit broken or dry soldered 2 MIC PCB related VR or related compone...

Page 17: ...TION ONE CHANNELIN OTHER CHANNEL INPUT SHORTING 10 d B 59 59 40 HUM NOISE VOLUME MAX INPUT SHORTING 11 m V 1 2 1 2 1 5 HUM NOISE VOLUME MIN INPUT SHORTING 12 m V 1 4 1 4 2 Woofer NO DESCRIPTION UNIT n...

Page 18: ...Service Guide SW HF 2 1 1800K Version 1 0 Page 18 of 24 Chapter 3 Block diagram...

Page 19: ...Service Guide SW HF 2 1 1800K Subwoofer Version 1 0 Page 19 of 24 Chapter 4 Exploded view...

Page 20: ...Service Guide SW HF 2 1 1800K Satellite Version 1 0 Page 20 of 24 Chapter 4 Exploded view...

Page 21: ...19030008 15 screw 3 18BA EP24010016 16 screw 3 5 20PA EP24100079 paper tube EP41590067 17 plastic tube EP41510016 18 19 screw 3 5 14TA EP24150009 20 driver unit 5 20W A 699 22 EP16050061 rubber foot m...

Page 22: ...separate static protecting bag in order to avoid static electricity Reliable external packing is also very important when sending the PCB assembly by post in that it would avoid unnecessarily lost or...

Page 23: ...Service Guide SW HF 2 1 1800K Chapter 7 Schematic diagram SW HF 2 1 1800K AMP PCB...

Page 24: ...Version 1 0 Page 23of 24 Service Guide SW HF 2 1 1800K Chapter 7 Schematic diagram SW HF 2 1 1800K MIC PCB Version 1 0 Page 24of 24...

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