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Service Guide

SW-2.1 850

Version 1.0 Page 1 of 16

SERVICE GUIDE

KYE SYSTEMS CORP

SW-2.1 850

Version:1.0

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Summary of Contents for SW-2.1 850

Page 1: ...Service Guide SW 2 1 850 Version 1 0 Page 1 of 16 SERVICE GUIDE KYE SYSTEMS CORP SW 2 1 850 Version 1 0 ...

Page 2: ...Service Guide SW 2 1 850 Version 1 0 Page 2 of 16 Revision History Version Date Change 1 0 10 07 2005 ...

Page 3: ...view 5 1 2 Problems 6 1 2 1 Satellite L R channels no sound 7 1 2 2 Woofer channel no sound 8 1 2 3 Woofer no power 9 Chapter 2 Specifications 10 Chapter 3 Block Diagram 11 Chapter 4 Exploded View Host Woofer 12 Satellite 13 Chapter 5 Part List 14 Chapter 6 Schematic Diagram 15 Chapter 7 Important Notes 16 7 1 Packing Requirement for Sending the PCB Assembly by post 16 7 2 Short of Spare Parts whi...

Page 4: ...eakers 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 Disconnect the AC power cord from the AC...

Page 5: ...stomers Analyzing possible malfunction causes Deciding proceeding the rectification methods Replace necessary defective parts Return the speakers with proper repackaging to customers Verifying problems proceeding necessary tests Proceeding tests to verify if the speaker is functioning normally Function OK Function NG Function OK Function NG ...

Page 6: ...Service Guide SW 2 1 850 Version 1 0 Page 6 of 16 1 2 Problems Item Problem Description 1 2 1 Satellite L R channels no sound 1 2 2 Woofer channel no sound 1 2 3 Woofer no power ...

Page 7: ...d sequence to rectify the problems 1 2 1 Satellite L R channels no sound Problem Analyzer and Identify the Causes Solutions Satellite L R channels no sound Broken or short circuit Check solder points on PCB Defective IC101 C123 C124 C132 C133 Speaker cable dis connect or speaker damaged Re connected speaker cable or replace defective speakers Check and replace defective IC or components ...

Page 8: ...r and Identify the Causes Solutions Woofer channel no sound Broken or short circuit Check solder points on PCB Defective IC102 IC103 C109 SUBWOOFER VR Speaker cable dis connect or speaker damaged Re connected speaker cable or replace defective speakers Check and replace defective IC or components ...

Page 9: ...alyzer and Identify the Causes Solutions Woofer no power Broken or short circuit Check solder points on PCB Defective D1 D8 Power SW Fuse Speaker cable dis connect or speaker damaged Re connected speaker cable or replace defective speakers Check and replace defective IC or components ...

Page 10: ...pecifications 1 Out Power at THD 10 W 3 1 2 Sensitivity mV 350 50 3 Freq Response Ref 3dB Hz 80 20K 4 S N ratio dB 50 5 Hum Noise Vol max mV 3 Host Woofer AT 100Hz NO Description Unit Specifications 1 Out Power at THD 10 W 15 3 2 Sensitivity mV 180 50 3 Freq Response Ref 3dB Hz 50 200 4 S N ration dB 45 5 Hum Noise Vol max mV 5 ...

Page 11: ...ervice Guide SW 2 1 850 Version 1 0 Page 11 of 16 Chapter 3 Block Diagram 2 CHINPUT INPUT SCH VOLUME POWER SCH FL OUT SPEAKER FR OUT SPEAKER SUBWOOFER OUT SPEAKER TRANS3 POWER SW 250V 2A FUSE AC IN BASS ...

Page 12: ...Service Guide SW 2 1 850 Version 1 0 Page 12 of 16 Chapter 4 Exploded View Host Woofer ...

Page 13: ...Service Guide SW 2 1 850 Version 1 0 Page 13 of 16 Satellite ...

Page 14: ...TDA2030A 1 PC 850 008 9 IC 8227 1 PC 850 009 10 CARTON SW 2 1 850 1 PC 850 010 11 CUSHION SW 2 1 850 1 SET 850 011 12 RUBBER Ø20 HOST 4 PC 850 012 13 TRANSFORMER 230V 14V AC x2 0 7A 9VAC 0 85A 1 PC 850 013 14 AUDIO CABLE 1 ST to 1 ST SW 2 1 850 1 PC 850 014 15 S N LABEL NO CARTON WOOFEWR 2 PC 850 015 16 MANUAL SW 2 1 850 1 PC 850 016 17 Round Red type Label NO CARTON 1 PC 850 017 18 PE BAG SW 2 1 ...

Page 15: ...V 9V D1 D4 1N4004 R114 1K R115 1K C117 100uF 25V C118 100uF 25V 9 1V 9 1V 10 11 8 7 6 VCC 16 14 OUT2 2 13 12 5 4 OUT1 15 3 9 ST BY 1 IC101 8227 C126 100uF 16V C121 100uF 16V R120 1K R119 1K C120 100uF 16V C125 100uF 16V C127 100uF 16V 9V 9v C128 100uF 16V C130 100uF 16V C132 470uF 16V C133 470uF 16V C131 154 M C129 154 M C109 4 7uF 50V NP R110 22K IC103 TDA2030A R112 22K R111 680 C134 100uF 25V 12...

Page 16: ...nce it is necessary to pack each PCB assembly with a separate static protecting bag in order to avoid static electricity Reliable external packing is also very important when sending PCB assembly by post in that it would avoid unnecessarily lost or damage 7 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 repai...

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