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Service Guide

SW-2.1 355

Satellite

Version 1.0

Page 17 of 20

Chapter 4 Explod ed view

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Summary of Contents for SW-2.1 355

Page 1: ...S Se ervi rvice G ce Gui uide de SW 2 1 355 SW 2 1 355 SER SERVICE VICE GUIDE GUIDE K KEY SYSTEM CO EY SYSTEM CORP RP Version Version 1 0 1 0 Page Page 1 1 of of 20 20 ...

Page 2: ...rvi rvice G ce Gui uide de SW 2 1 355 SW 2 1 355 R Re evisi vision on H Histo istory ry Version Date Change Version Date Change 1 0 15 11 2007 1 0 15 11 2007 Version Version 1 0 1 0 Page Page 2 2 of of 20 20 ...

Page 3: ...7 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 14 Chapter 3 Block diagram 15 Chapter 4 Exploded view 16 Subwoofer 16 Satellite 17 Chapter 5 Part list 18 Woofer 18 Satellite 18 Chapter 6 Important notes 19 Chapter 7 Schematic diagram 20 Version 1...

Page 4: ...ace 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 an...

Page 5: ...ersion 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 cause Deciding proceeding the Rectification methods Replace necessary Defective parts Verifying problems Proceeding Necessary tests ...

Page 6: ...roblems 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 light Version 1 0 Page 6 of 20 ...

Page 7: ...nce to rectify the problems 1 2 1 No power Problem Analyze and identify the causes Solutions Version 1 0 Page 7 of 20 Defective soldering of transformer secondary wire and CON4 on PCB board No power LED indicator unlighted Repair or replace resolder or replace Repair or replace Defective or damaged AC cable or power switch Defective transformer LED indicator unlighted ...

Page 8: ...Version 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 Repair or replace Repair or replace Repair or replace Defective components of VR1 JK1 U1 U2 ...

Page 9: ...eaker 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 VR1 Replace or replace Replace or replace Re connect replace or repair PCB damaged dry soldered or short circuited short circuited Repair or replace Right channel no sound ...

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 VR1 Repair or replace Repair or replace Re connect replace or repair PCB damaged dry soldered or short circuited short circuited Repair or replace Left channel no sound ...

Page 11: ...Version 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 soldered tor defective 3 U2 U3 or the components around defective or dry soldered Woofer no sound ...

Page 12: ...utions 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 the components around dry soldered or defective 3 PCB broken or dry soldered Noise ...

Page 13: ...5 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 LED indicators no light ...

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 POWER 100Hz 10 THD W 4 4 3 8 2 SENSITIVITY 100Hz RATED O P POWER m V 110 110 11 3 SENSITIVITY 100Hz 1W O P POWER m V 48 48 4 8 4 MAX INPUT LEVEL 1 THD m V 75 75 7 5 5 0 4 0 8 LOW DISTORTION 100Hz RE...

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: ...oofer 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 137 102 5 1 6MM 2 EP15355003 Satellite Ref NO Description Part NO 1 logo plate M78 EP41240064 2 metal mesh 104 3 76 1 20 9MM EP61020001 3 Satellite front EP40410134 4 satellite driver unit 3 4OHM 3WEP1...

Page 19: ...eparate 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 damage 6 2 Short of spare parts while repairing a speaker system If you are short of spare parts when you have some speaker systems waiting to be repaired it would be recommended to take the necessary ...

Page 20: ...Service Guide SW 2 1 355 Version 1 0 Page 20 of 20 Cha ter 7 Schematic dia ram ...

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