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KYE Systems Corp. Genius SP-J200, Service Manual

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KYE Systems Corp. Genius SP-J200 Service Manual Download Page 12

 

Service Guide

                                                                     

SP-J200 

1.2.6. Noise 

 

Problem 

 

 

 

 

 

 

 

Analyze and 

identify the 

causes 

 

 

 

 

 

 

Solutions 

 

 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 

 

 

 

 

 

                   

             

Version 1.0         Page 12 of 21 

Hum noise 

1.

 D1

，

D2

，

D3

，

D4

，

EC25 

  dry-soldered or defective 

2. power supply for IC1 normal 

or not 

3. PCB broken or dry-soldered 

Repair

 

Repair or replace

 

1.    Or caused by the vibration from 

too long lead wire of driver units   

2. Driver units damaged 

 

 

General noise 

Noise 

Summary of Contents for Genius SP-J200

Page 1: ...Service Guide SP J200 SERVICE GUIDE KYE SYSTEM CORP Version 1 0 Page 1 of 21...

Page 2: ...Service Guide SP J200 Revision History Version Date Change 1 0 12 12 2008 Version 1 0 Page 2 of 21...

Page 3: ...sound 8 1 2 3 Right channel no sound 9 1 2 4 Left channel no sound 10 1 2 5 VR no use 11 1 2 6 Noise 12 1 2 7 LED indicators no light 13 1 2 8 Input jack no use 14 Chapter 2 Specification 15 Chapter...

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

Page 6: ...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 No effect when rotating VR 1 2 6 Noise 1 2 7 LED indicators no light 1...

Page 7: ...ndicator unlighted Problem Analyze and identify the causes Solutions Version 1 0 Page 7 of 21 Repair or replace Defective transformer 1 Defective AC cable No power LED indicator unlighted 2 Loose conn...

Page 8: ...he causes Solutions Version 1 0 Page 8 of 21 No sound PCB broken dry soldered or short circuited Repair or replace Input cable connected well or not Repair resolder or replace Power supply for IC1 nor...

Page 9: ...21 Input cable or input jack damaged or defective Right Speaker cable damaged or defective Right driver unit dry soldered or defective 1 Defective IC1 IN PCB 2 Defective VR1 VR2 in PCB 3 PCB damaged...

Page 10: ...of 21 Input cable or input jack damaged or defective Left Speaker cable damaged or defective Left driver unit dry soldered or defective Repair or replace 2 Defective VR1 VR2 in PCB 3 PCB damaged dry...

Page 11: ...es Solutions Version 1 0 Page 11 of 21 No effect when rotating VR 1 VR related copper foil broken dry soldered or not If defective the following components may cause VR to be no use MC3 R9 R1 R2 MC2 R...

Page 12: ...Version 1 0 Page 12 of 21 Hum noise 1 D1 D2 D3 D4 EC25 dry soldered or defective 2 power supply for IC1 normal or not 3 PCB broken or dry soldered Repair Repair or replace 1 Or caused by the vibration...

Page 13: ...2 7 LED indicators no light Problem Analyze and identify the causes Solutions Version 1 0 Page 13 of 21 2 R19 or LED defective or dry soldered Check and replace 1 Defective dry soldered or broken PCB...

Page 14: ...Input jack no use Problem Analyze and identify the causes Solutions Version 1 0 Page 14 of 21 2 JK1 related cooper foil broken or dry soldered Check and replace or re solder 1 JK1 IN PCB defective or...

Page 15: ...STOPTION 1kHz 1W OUT 0 2 5 0 2 0 5 6 FREQUENCY RESPONSE 1KHz 3DB LOW Hz 20 20 20 10 7 FREQUENCY RESPONSE 1KHz 3DB HI KHz 70 70 70 20 8 S N RATED O P POWER d B 76 77 70 9 CHANNEL UNBALANCE REF O P POWE...

Page 16: ...Service Guide SP J200 Version 1 0 Page 16 of 21 Chapter 3 Block diagram...

Page 17: ...Service Guide SP J200 Right speaker Version 1 0 Page 17 of 21 Chapter 4 Exploded view...

Page 18: ...Service Guide SP J200 Left speaker Version 1 0 Page 18 of 21 Chapter 4 Exploded view...

Page 19: ...jack J3518 500 black EP1A090012 12 13 back cover EP40510101 14 VR 1230KGS B10K L12 EP1B010081 15 VR RW1660GOJH B50K L12 EP1B010080 16 knob silver EP40714186A screw 3 10PWA 17 EP24120002 rubber foot m...

Page 20: ...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 21: ...Service Guide SP J200 Version 1 0 Page 21 of 21 Chapter 7 Schematic diagram...

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