KYE Systems Corp. Genius SW-2.1 355 User Manual Download

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Service Guide

SW-2.1 355

SERVICE GUIDE

KEY SYSTEM CORP

Version 1.0 Page 1 of 20

Summary of Contents for Genius SW-2.1 355

Page 1: ...Service Guide SW 2 1 355 SERVICE GUIDE KEY SYSTEM CORP Version 1 0 Page 1 of 20...

Page 2: ...Service Guide SW 2 1 355 Revision History Version Date Change 1 0 15 11 2007 Version 1 0 Page 2 of 20...

Page 3: ...1 2 2 No sound 8 1 2 3 Right channel no sound 9 1 2 4 Left channel no sound 10 1 2 6 Woofer no sound 11 1 2 9 Noise 12 1 2 10 LED indicators no light 13 Chapter 2 Specification 14 Satellite 14 Woofer...

Page 4: ...ce 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 anythin...

Page 5: ...rsion 1 0 Page 5 of 20 Receiving Defective speaker from customers Verifying problems Proceeding Necessary tests Return the speakers with proper repacking to customers Analyzing possible Malfunction ca...

Page 6: ...oblems 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 LED indicators no...

Page 7: ...ce to rectify the problems 1 2 1 No power LED indicator unlighted Problem Analyze and identify the causes Solutions Version 1 0 Page 7 of 20 Defective soldering of transformer secondary wire and CON4...

Page 8: ...ersion 1 0 Page 8 of 20 No sound Input cable damaged or defective 8P assembled line defectively connected between CON1 and CON2 PCB short circuited dry soldered or damaged Repair resolder or replace R...

Page 9: ...aker cable damaged or defective Right driver unit dry soldered or defective 1 Defective JK1 JK2 2 Defective assembled line between CON1 and CON2 3 Defective or dry soldered R8 R1 C1 R19 C3 C10 U1 or V...

Page 10: ...Speaker cable damaged or defective Left driver unit dry soldered or defective 1 Defective JK1 JK2 2 Defective assembled line between CON1 and CON2 3 Defective or dry soldered R7 R2 C2 R20 C4 C11 U1 VR...

Page 11: ...ersion 1 0 Page 11 of 20 Woofer driver unit dry soldered or defective Repair or replace Repair or replace 1 Defective assembled line between CON1 and CON2 2 R9 R10 C15 C18 R14VR2 R15 C20 C21 CON4 dry...

Page 12: ...tions Version 1 0 Page 12 of 20 Check and replace Repair or replace Driver units damaged Vibration from too long lead wire of driver units Repair 1 D1 D4 C29 dry soldered or defective 2 U1 U2 U3 or th...

Page 13: ...1 2 7 LED indicators no light Problem Analyze and identify the causes Solutions Version 1 0 Page 13 of 20 Check and replace 1 Defective dry soldered or broken PCB 2 R18 LED defective or dry soldered...

Page 14: ...CHANNEL INPUT SHORTING d B 0 5 1 HUM NOISE VR MAX VOLUME MAX INPUT SHORTING m V 0 6 1 9 10 1HUM NOISE VR MIN VOLUME MIN INPUT SHORTING m V 0 8 2 Woofer NO DESCRIPTION UNIT NOMINAL LIMIT 1 RATED OUTPUT...

Page 15: ...Service Guide SW 2 1 355 Version 1 0 Page 15 of 20 Chapter 3 Block diagram...

Page 16: ...Service Guide SW 2 1 355 Subwoofer Version 1 0 Page 16 of 20 Chapter 4 Exploded view...

Page 17: ...Service Guide SW 2 1 355 Satellite Version 1 0 Page 17 of 20 Chapter 4 Exploded view...

Page 18: ...ofer back board EP53355J01 10 power switch EP19030008 11 AC cable 1 5m EP32020044 12 Bush EP41610059 13 AL heat sink 36 20 15MM EP23011042 14 IC BT2025CP U1 TEA2025B U2 EPIC020001 EPIC010071 15 PCB 13...

Page 19: ...parate 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 da...

Page 20: ...Service Guide SW 2 1 355 Version 1 0 Page 20 of 20 Chapter 7 Schematic diagram...