KYE Systems Corp. Genius SP-HF360A Service Manual Download Page 1

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Service Guide

SP-HF360A

SERVICE GUIDE

KEY SYSTEM CORP

Version 1.0 Page 1 of 21

Summary of Contents for Genius SP-HF360A

Page 1: ...Service Guide SP HF360A SERVICE GUIDE KEY SYSTEM CORP Version 1 0 Page 1 of 21...

Page 2: ...Service Guide SP HF360A Revision History Version Date Change 1 0 06 08 2009 Version 1 0 Page 2 of 21...

Page 3: ...hannel no sound 9 1 2 4 Left channel no sound 10 1 2 5 Noise 11 1 2 6 LED indicators no light 12 1 2 7 No volume change when rotating VR 13 1 2 8 No sound when input jack is used 14 Chapter 2 Specific...

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 21 Receiving Defective speaker from customers Return the speakers with proper repacking to customers Verifying problems Proceeding Necessary tests Analyzing possible Malfunction ca...

Page 6: ...on 1 2 1 No power LED indicator no light 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 No volume change when rotating VR 1 2...

Page 7: ...ems 1 2 1 No power LED indicator unlighted Problem Analyze and identify the causes Solutions Version 1 0 Page 7 of 21 No power LED indicator unlighted Repair or replace 1 Defective transformer 2 Defec...

Page 8: ...ses Solutions Version 1 0 Page 8 of 21 No sound PCB short circuited dry soldered or broken Audio cable loosely connected or broken Repair or replace Repair or replace Or caused by the following compon...

Page 9: ...ersion 1 0 Page 9 of 21 PCB damaged dry soldered or short circuited VR1 VR2 damaged or loose connected IC1 IC2 damaged 1 Driver unit or speaker cable defective or loosely connected 2 The 3 5 mm plug o...

Page 10: ...Version 1 0 Page 10 of 21 Repair or replace Replace 1 Driver unit or speaker cable defective or loosely connected 2 The 3 5 mm plug of Audio cable defective or loosely connected 1 PCB damaged dry sol...

Page 11: ...ge 11 of 21 1 Check D1 D2 D3 D4 EC6 dry soldered or not 2 The power supply of each IC is normal or not 3 PCB dry solder or broken 1 Driver units damaged 2 Or caused by vibration from too long lead wir...

Page 12: ...6 LED indicator no light Problem Analyze and identify the causes Solutions Version 1 0 Page 12 of 21 Check and replace 1 PCB damaged dry soldered or short circuited 2 R28 in PCB defective 3 Defective...

Page 13: ...causes Solutions Version 1 0 Page 13 of 21 Check and replace 1 Check if the VR related copper foil broken 2 VR1 VR2 defective 3 Or caused by the following components R5 R6 R1 R2 R13 CC1 MC1 MC2 MC3 R...

Page 14: ...en input jack is used Problem Analyze and identify the causes Solutions Version 1 0 Page 164of 21 Check and replace 1 JK1 damaged 2 Or JK1 related copper coil in PCB broken or dry soldered or short ci...

Page 15: ...0 8 1 DISTOPTION 1kHz 1W OUT 6 FREQUENCY RESPONSE 1KHz 3DB LOW Hz 190 190 190 20 7 FREQUENCY RESPONSE 1KHz 3DB HI KHz 110 110 110 20 8 S N RATED O P POWER d B 80 79 70 9 CHANNEL UNBALANCE REF O P POW...

Page 16: ...Service Guide SP HF360A Version 1 0 Page 16 of 21 Chapter 3 Block diagram...

Page 17: ...Service Guide SP HF360A Active speaker Version 1 0 Page 17 of 21 Chapter 4 Exploded view...

Page 18: ...Service Guide SP HF360A Passive speaker Version 1 0 Page 18 of 21 Chapter 4 Exploded view...

Page 19: ...P19030008 9 screw 3 8BA to fix the PCB hanger EP24010014 10 PCBA SW HF360A YOMMO 1 EP1P360001 11 front panel for the active speaker EP40910406 12 big knob EP40711199 13 small knob EP40711200 14 IC TDA...

Page 20: ...arate 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 dam...

Page 21: ...Service Guide SP HF360A SP HF360A PCB Version 1 0 Page 23 of 21 Chapter 7 Schematic diagram...