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Summary of Contents for KYE Systems Corp. Genius SW-J2.1 1200
- Page 1 Service Guide SW-J2.1 1200 SERVICE GUIDE KEY SYSTEM CORP Version 1.0 Page 1 of 23...
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Page 2: Revision History
Service Guide SW-J2.1 1200 Revision History Version Date Change 05/04/2009 Version 1.0 Page 2 of 23... -
Page 3: Table Of Contents
Service Guide SW-J2.1 1200 Table of Contents 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 or left channel no sound….……….……….……….……..….……9 1.2.4 Woofer no sound….……….……….……….………….….……….……10 1.2.5 Noise………………………………….…………………………….…..…11 1.2.6 LED indicators no light…………………………….….……………..….12... -
Page 4: Getting Start
Service Guide SW-J2.1 1200 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. -
Page 5: Chapter 1. How To Handle Defective Returns
Service Guide SW-J2.1 1200 Chapter 1. How to Handle Defective Returns 1.1 Overview Receiving Defective speaker from customers Verifying problems Proceeding Necessary tests Function NG Function OK Function NG Analyzing possible Malfunction cause Deciding & proceeding the Rectification methods Replace necessary Defective parts Verifying problems Proceeding... -
Page 6: Problem
Service Guide SW-J2.1 1200 1.2 Problems Item Problem Description No power，LED （indicator）no light 1.2.1 1.2.2 No sound 1.2.3 Right or left channel no sound 1.2.4 Woofer no sound 1.2.5 Noise 1.2.6 LED indicator no light 1.2.7 Headphone jack output no sound 1.2.8 VR, headphone jack or line-in jack abnormal Version 1.0... -
Page 7: No Power，Led （Indicator）Unlighted
Service Guide SW-J2.1 1200 *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 No power，LED （indicator）unlighted Problem Analyze Or caused by the following: Defective transformer 1. -
Page 8: No Sound
Service Guide SW-J2.1 1200 1.2.2 No sound No sound Problem YM9660 2.1L AMP Or caused by the following defective JK2 in PCB short-circuited, PCB defective components in YM9660 2.1L AMP dry soldered or broken; Analyze and VR2 in YM9660 2.1L CON PCB: IC1，IC4，IC3，IC2，Q1，... -
Page 9: Right Or Left Channel No Sound
Service Guide SW-J2.1 1200 1.2.3 Right or left channel no sound Right or left channel no sound Problem JK6，JK7 or VR2 in YM9660 Driver unit or speaker PCB damaged, dry-soldered or 2.1L CON PCB defective; cable defective or short-circuited related loosely connected JK1, JK2 and JK3 in YM9660 Analyze and... -
Page 10: Woofer No Sound
Service Guide SW-J2.1 1200 1.2.4 Woofer no sound Problem Woofer no sound 2. IC2, IC3 or VR1 or related damaged, Woofer driver unit Analyze and components damaged dry-soldered /Speaker cable identify the YM9660 2.1L AMP PCB. short-circuited YM9660 2.1L AMP causes dry-soldered defective;... -
Page 11: Noise
Service Guide SW-J2.1 1200 1.2.5 Noise Problem Noise Filter capacitor/ diode dry-soldered Or caused by vibration from Driver units damaged or damaged, pls check EC14, too long lead wire of driver Woofer cabinet leaks, Analyze and EC1, EC6, EC13, D1， EC12, units closed not well. -
Page 12: Led Indicators No Light
Service Guide SW-J2.1 1200 1.2.6 LED indicator no light Problem LED indicator no light LED1 defective Analyze and YM9660 2.1L CON PCB short-circuit identify the causes Check and replace Solutions Version 1.0 Page 12 of 23... -
Page 13: Headphone Jack Output No Sound
Service Guide SW-J2.1 1200 1.2.7 Headpone jack output no sound Problem Headphone jack no use JK7 in YM9660 2.1L CON PCB defective or its related copper foil broken Analyze and identify the causes Solutions Check and replace Version 1.0 Page 13 of 23... -
Page 14: Vr, Headphone Jack Or Line-In Jack Abnormal
Service Guide SW-J2.1 1200 1.2.8 VR, headphone jack or line-in jack abnormal Problem VR, headphone jack or line-in jack abnormal Jack: Analyze and JK6 or JK7 in YM9660 2.1L CON Defective cause identify the PCB defective wired-control VR or bass VR having causes YM9660 AMP JK2, JK3, or JK1 in... -
Page 15: Chapter 2. Specification
Service Guide SW-J2.1 1200 Chapter 2. Specifications Satellite Normal DESCRIPTION UNIT LIMIT ≧5.5 RATED OUTPUT POWER @THD 10% SENSITIVITY (1KHz) @RATED O/P POWER 450±45 SENSITIVITY (1KHz) @1W O/P POWER 130±13 MAX INPUT LEVEL@1% THD 350±35 ≦0.5 DISTOPTION@1kHz FREQUENCY RESPONSE(1KHz -3DB ) LOW 110±20 FREQUENCY RESPONSE(1KHz -3DB ) HI 150±20... -
Page 16: Chapter 3 Block Diagram
Service Guide SW-J2.1 1200 Chapter 3 Block diagram Version 1.0 Page 16 of 23... -
Page 17: Chapter 4. Exploded View
Service Guide SW-J2.1 1200 Chapter 4 Exploded view Subwoofer Version 1.0 Page 17 of 23... -
Page 18: Satellite
Service Guide SW-J2.1 1200 Chapter 4 Exploded view Satellite Version 1.0 Page 18 of 23... -
Page 19: Wired-Control
Service Guide SW-J2.1 1200 Chapter 4 Exploded view Wired control Version 1.0 Page 19 of 23... -
Page 20: Chapter 5 Part List
Service Guide SW-J2.1 1200 Chapter 5 Part list Woofer Ref. Description Part NO Port tube, plastic, A-822-1 EP41510014 Paper port tube, SW-2.1 1200 EP41590071 Port tube, A-822-2 EP41510041 wooden cabinet, SW-2.1 1200, 169*230*239 EP531200J1A Female plastic buckle, A-858CEV EP41610060 screw, 3.5*14TA EP24150009 screw, 3.5*20PA EP24100079... -
Page 21: Satellite
Service Guide SW-J2.1 1200 Chapter 5 Part list Satellite Ref. Description Part NO clothgrill of satellite, J330 EP64000167 scew, 3*8TA EP24150006 scew, 3*12PA EP24100036 front part of satellite EP40410149 back covr of satellite EP40610396 EP73060055 footmat, 10*1.5 Wired control rotating knob, plastics EP40714157B middle part of the wired-control,plastics, EP40840046B... -
Page 22: Chapter 6 Important Notes
Service Guide SW-J2.1 1200 Chapter 6. Important Notes 6.1 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;... -
Page 23: Chapter 7 Schematic Diagram
Service Guide SW-J2.1 1200 Chapter 7. Schematic diagram SW-J2.1 1200 AMP PCB Version 1.0 Page 23 of 23...
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