KYE Systems Corp. Genius SW-G2.1 1200 Service Manual Download Page 15 | Manualshive

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Service Guide SW-G2.1 1200

Version No. 1.0 Page

15 of 21

Chapter 3 Block Diagram

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

TDA2030

Power amplification

TDA2030

Power amplification

TDA2030A

Power supply

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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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