KYE Systems Corp. Genius SP-120 Service Manual Download Page 1 | Manualshive

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Service Manual

SP-120

Service Manual

KEY SYSTEM CORP

Page:1 of 18

Version No.：1.0

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Summary of Contents for Genius SP-120

Page 1: ...Service Manual SP 120 Service Manual KEY SYSTEM CORP Page 1 of 18 Version No 1 0...

Page 2: ...Change History Version Date 1 0 Revision Service Manual SP 120 Version No 1 0 Page 2 of 18 2011 8 18...

Page 3: ...phone jack is inserted 12 Chapter II Product specifications 13 Main sub speaker 13 Chapter III Flowchart 14 Starting to use 4 User guide 4 1 2 4 Hum and current noise 10 1 2 5 Power light is off 11 1...

Page 4: ...e speaker Place the speaker levelly and do not expose to harmful and corrosive atmosphere with smoke vibration salt or oil as well as smog Never throw or strike the speaker Safety instruction User gui...

Page 5: ...o dispose the rejected products Test is OK Test NG Receive the rejected speaker from customer Replace some parts of the rejected if necessary Figure out practicable maintenance Analyze potential cause...

Page 6: ...is no sound output though the headphone 1 2 Errors Service Manual SP 120 Description NO power and indicator is off NO sound Left or right channel error Hum and current noise LED indicator is off jack...

Page 7: ...plug is out of contact 2 2P cables are set improperly 3 The transformer is defective 4 The key switch is defective 1 Welding of power cord onto the transformer is bad 2 The power plug is out of conta...

Page 8: ...or damaged short circuit open circuit CON1 CON2 CON3 1 J2 J3 D10 Q2 is bad or damaged 2 Potentiometer VR1 is damaged 3 PCB plug becomes loose or in poor contact 4 Headphone jack JK1 is bad or damaged...

Page 9: ...al input line of left right channel is bad or damaged 4 Signal output line of left right channel is bad or damaged 1 Speaker of left right channel is bad or damaged 2 Signal output line of left right...

Page 10: ...cause abnormal interference of voltage ripple by power supply IC PCB is affected with damp polluted or broken Signal earth line of CON1 is bad contact Inspect repair replace Inspect repair replace JK1...

Page 11: ...2 5 LED indicator is off Version No 1 0 Page 11 of 18 Service Manual SP 120 LED indicator is off 1 LED1 is damaged or off 2 Copper foil of PCB pin is broken 3 D9 C23 R20 R21 is damaged Replace repair...

Page 12: ...is inserted Service Manual SP 120 Version No 1 0 Page 12 of 18 There is no sound output though the headphone jack is inserted 1 In use headphone jack JK1 has broken the copper foil as result in bad co...

Page 13: ...2 0 Main sub speaker Version No 1 0 Chapter II Product specifications Service Manual SP 120 Page 13 of 18...

Page 14: ...Version No 1 0 Page 14 of 18 Service Manual SP 120 Chapter III Flowchart Signal input Volume control Power amplification TEA2025B Sound output Right channel output Left channel output...

Page 15: ...Version No 1 0 Page 15 of 18 Chapter IV Assembly drawing Service Manual SP 120 Subwoofer...

Page 16: ...Satellite Service Manual SP 120 Version No 1 0 Page 16 of 18...

Page 17: ...TEA2025B AEU000001 02G BACK CABINET CE AMP024702 00G 2 SPEAKER AMK509001 G01 Satellite Ref NO Description Part NO 1 FRONT CABINET AMP024701 00G 3 AMPLIFIER PCBA ASP024701 G01 SOCKET ANJ000089 00G POTE...

Page 18: ...Page 18 of 18 Service Manual SP 120 Version No 1 0 Chapter VI Schematic circuit diagram...

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