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KYE Systems Corp. Genius SW-G2.1 1200, Service Manual

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KYE Systems Corp. Genius SW-G2.1 1200 Service Manual Download Page 8

Service Guide                                                     SW-G2.1 1200 

           

                                                         

Version No. 1.0           Page 

8 of 21   

 

 

 

1.2.2 No Sound   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No Sound 

1.

 

Short circuit, open circuit 
and no power of PCB 

2.

 

Connecting line damaged 
or defective (short circuit 
and open circuit) 

3.

 

CON3-CON6 or 
CON5-CON4 lines 
broken . 

1.

 

IC: U1, U2, U4, U5 and U6 
defective or damaged   

Inspect/ repair 

Inspect/ repair/ replace   

 

1.

 

RCA: JK2/ JK3 defective or 
damaged  

2.

 

Open circuit of copper sheet 
of sockets JK4/ JK5   

3.

 

Potentiometer defective or 
damaged  

Inspect/ repair   

 

Summary of Contents for Genius SW-G2.1 1200

Page 1: ...Service Guide SW G2 1 1200 Version No 1 0 Page 1 of 21 Service Guide KEY SYSTEM CORP...

Page 2: ...Service Guide SW G2 1 1200 Version No 1 0 Page 2 of 21 Modification Record Version Date Modification 1 0 2011 8 18...

Page 3: ...rative 7 1 2 2 No Sound 8 1 2 3 No Sound from Left or Right Channel 9 1 2 4 No Bass 10 1 2 5 Noise and Current Noise 11 1 2 6 Power Light Inoperative 12 1 2 7 No Sound from Earphone Input Socket Inter...

Page 4: ...latly place the product and don t place the speaker in such hostile environments as smoke vibration air containing salt or oil or other corrosive air or smoke Don t knock the speaker Don t make any it...

Page 5: ...e speaker returned by a consumer Find out troubles in a function test Verify the trouble and necessary test Analyze possible causes for the troubles Replace some defective parts to be necessarily repl...

Page 6: ...iption of troubles 1 2 1 No Power and LED Indicator Lamp Inoperative 1 2 2 No Sound 1 2 3 No Sound from Left or Right Channel 1 2 4 No Bass 1 2 5 Noise and Current Noise 1 2 6 LED Indicator Lamp Inope...

Page 7: ...No Power and LED Indicator Lamp Inoperative No Power and LED Indicator Lamp Inoperative 1 The problems of power switch resulting in damage 2 Switching power panel damaged Causes given below 1 Loose pl...

Page 8: ...2 Connecting line damaged or defective short circuit and open circuit 3 CON3 CON6 or CON5 CON4 lines broken 1 IC U1 U2 U4 U5 and U6 defective or damaged Inspect repair Inspect repair replace 1 RCA JK2...

Page 9: ...f PCB 2 JK2 JK3 JK4 and JK5 defective or damaged 3 CON3 CON6 CON5 CON4 signal lines connected poorly 1 Unit circuit element U1 U2 R1 and U6 of left right channel damaged Inspect repair replace Inspect...

Page 10: ...r amplifier broken 2 Plug and socket of horn line loose 3 Horn lines broken 1 U4 and U5 defective or damaged 2 Voltage stabilizing circuit of power supply damaged short circuit of DZ1 and DZ2 or open...

Page 11: ...r of power supply C14 and C15 defective or damaged 1 Integrated circuit U1 U2 U3 U4 U5 and U6 damaged or copper sheet broken 2 DZ1 and DZ2 damaged Inspect repair replace Inspect repair replace 1 Poor...

Page 12: ...W G2 1 1200 Version No 1 0 Page 12 of 21 1 2 6 LED Indicator Lamp Inoperative LED Indicator Lamp Inoperative 1 LED1 damaged or inoperative 2 Copper foil of lamp base of PCB broken 3 U3 and R36 damaged...

Page 13: ...o Sound Output from Earphone after Installation of Earphone e No Sound Output from Earphone after Installation of Earphone 1 Copper foil broken by JK 5 earphone socket to result in poor contact during...

Page 14: ...Version No 1 0 Page 14 of 21 Service Manual SW G2 1 1200 Chapter 2 Product Specifications...

Page 15: ...m Signal input Earphone input Calculation amplification JRC4558 Bass tuning Master volume tuning Earphone amplification JRC4558 Left channel output Right channel output Bass output Power amplification...

Page 16: ...Service Guide SW G2 1 1200 Version No 1 0 Page 16 of 21 Chapter 4 Rendering after Assembly Subwoofer...

Page 17: ...Service Guide SW G2 1 1200 Version No 1 0 Page 17 of 21 Satellite...

Page 18: ...G 5 POWER PCBA AEM100023 00G 6 METAL BAR AMB000006 00G 7 2RCA SOCKET ANJ000093 00G 8 2RCA SOCKET ANJ000003 00G 9 BACK BOARD AHB024902 00G 10 SWITCH AES000004 01G 11 VOLUME PCBA ASP024902 G01 12 RUBBER...

Page 19: ...vice Guide SW G2 1 1200 Version No 1 0 Page 19 of 21 Satellite Ref NO Description Part NO 1 FRONT CABINET AMP024701 00G 2 SPEAKER AMK509002 G01 3 SEALING COVER AMP724903 00G 4 BACK CABINET AMP724704 0...

Page 20: ...Service Guide SW G2 1 1200 Version No 1 0 Page 20 of 21 Chapter 6 Electric Schematic Diagram...

Page 21: ...Service Guide SW G2 1 1200 Version No 1 0 Page 21 of 21...

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