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Service Guide

                                                                   

SP-S110 

 

 

 

 

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; hence 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 

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 parts from one   

  Speaker system, so that you may have the as many speaker 

systems 

 

 

 
 
 
 
 
 
 
 
 

 

                   

 

Version 1.0         Page 18 of 19 

 

Chapter 6.  Important Notes

Summary of Contents for Genius SP-S110

Page 1: ...Service Guide SP S110 SERVICE GUIDE KEY SYSTEM CORP Version 1 0 Page 1 of 19...

Page 2: ...Service Guide SP S110 Revision History Version Date Change 1 0 1 08 2007 Version 1 0 Page 2 of 19...

Page 3: ...ted 7 1 2 2 No sound 8 1 2 3 Noise 9 1 2 4 LED indicators no light when working 10 1 2 5 Volume switch no use 11 1 2 6 Headphone jack no use 12 Chapter 2 Specification 13 Chapter 3 Block diagram 14 Ch...

Page 4: ...e 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...

Page 5: ...sion 1 0 Page 5 of 19 Receiving Defective speaker from customers Verifying problems Proceeding Necessary tests Return the speakers with proper repacking to customers Analyzing possible Malfunction cau...

Page 6: ...2 Problems Item Problem Description 1 2 1 No power LED indicator unlighted 1 2 2 No sound 1 2 3 Noise 1 2 4 LED indicators no light when working 1 2 5 Volume switch no use 1 2 6 Headphone jack no use...

Page 7: ...ded sequence 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 19 Dry soldered secondary wire of transformer Defect...

Page 8: ...Analyze and identify the causes Solutions Version 1 0 Page 8 of 19 No sound PCB damaged dry soldered or short circuited Power supply for IC TDA2822 abnormal or damaged Repair resolder or replace Repai...

Page 9: ...of 19 Check and replace Repair or replace Or VR poor connected Or Vibration from too long lead wire of driver units or damaged short circuited driver units Repair 1 Filter capacitor not work dry sold...

Page 10: ...cators no light when working Problem Analyze and identify the causes Solutions Version 1 0 Page 10 of 19 Check and replace 1 LED1 damaged or PCB copper foil broken 2 LED1 R7 defective or dry soldered...

Page 11: ...ice Guide SP S110 1 2 5 Volume switch no use Problem Analyze and identify the causes Solutions Version 1 0 Page 11 of 19 Check and replace 1 PCB dry soldered or broken 2 VR1 defective Volume switch no...

Page 12: ...Service Guide SP S110 1 2 6 Headphone jack no use Problem Analyze and identify the causes Solutions Version 1 0 Page 12 of 19 Headphone jack no use Poor connection in PS1 JACK Check and replace...

Page 13: ...TDH 4 LOW Hz 140 20 FREQUENCY RESPONSE 1KHZ 3dB HIGH KHz 60 5 5 S N RATED O P POWER 57 55 dB 6 CHANNEL UNBALANCE REF O P POWER dB 0 2 0 5 7 CHANNEL SEPARATION ONE CHANNEL INPUT OTHER CHANNEL SHORTING...

Page 14: ...Service Guide SP S110 Version 1 0 Page 14 of 19 Chapter 3 Block diagram...

Page 15: ...Service Guide SP S110 Active speaker Version 1 0 Page 15 of 19 Chapter 4 Exploded view...

Page 16: ...Service Guide SP S110 Passive speaker Version 1 0 Page 16 of 19 Chapter 4 Exploded view...

Page 17: ...500032 7 SP S110 back of active speaker EP40510097 8 screw 3 18BA EP24010016 9 screw 3 18PA EP24100108 10 knob EP40711179 11 button EP40711180 12 PCBA EP1P110007 Passive speaker Ref NO Description Par...

Page 18: ...rate 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 dama...

Page 19: ...Service Guide SP S110 Version 1 0 Page 19of 19 Chapter 7 Schematic diagram...

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