Genius SW-5.1 1020 Service Manual Download

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Service Guide SW-5.1 1020

Service Guide

KEY SYSTEM CORP

Version No. 1.0 Page

1 of 24

Summary of Contents for SW-5.1 1020

Page 1: ...Service Guide SW 5 1 1020 Service Guide KEY SYSTEM CORP Version No 1 0 Page 1 of 24 ...

Page 2: ...Service Guide SW 5 1 1020 Modification Record Version Date Modification 1 0 2011 10 19 Version No 1 0 Page 2 of 24 ...

Page 5: ...umer Verify the trouble and necessary test Find out troubles in a function test Analyze possible causes for the troubles Test Ok Test NG Replace some defective parts to be necessarily replaced Retest Return the qualified product to the consumer after repacking Version No 1 0 Page 5 of 24 Decide an effective repair service scheme ...

Page 6: ... 2 No Sound 1 2 3 No Sound from Front Left or Right Channel 1 2 4 No Sound from Rear Left or Right Channel 1 2 5 No Sound from Middle Channel 1 2 6 No Bass 1 2 7 Noise and Current Noise 1 2 8 Earphone Socket Inoperative 1 2 9 Noise from Bass Potentiometer 1 2 10 VOL Volume Inoperative Version No 1 0 Page 6 of 24 ...

Page 8: ...rcuit board U6 damaged or defective 2 Abnormal power voltage of power panel Causes given below Power fault of U6 resulting from SW 5 1 1020 PCB D6 R59 C81 Inspect repair replace Inspect repair replace 1 JK5 defective or damaged 2 VR2 Potentiometer defective or damaged Replace repair ...

Page 9: ...channel 1 Short circuit or open circuit of PCB for front left and right channel 2 JK3 JK5 earphone input socket defective or damaged Such elements damaged as C28 C29 and U1 Inspect repair replace Inspect repair replace 1 Output RCA socket defective or damaged 2 Power failure of U1 power amplifier power copper foil broken Replace repair ...

Page 10: ...t channel 1 Short circuit or open circuit of PCB for rear left and right channel 2 JK2 earphone input socket defective or damaged Such elements damaged as C30 C31 and U2 Inspect repair replace Inspect repair replace 1 Output RCA socket defective or damaged 2 Power failure of U2 power amplifier power copper foil broken Replace repair ...

Page 11: ...hannel 1 Short circuit or open circuit of PCB for middle channel 2 JK4 earphone input socket defective or damaged Such elements damaged as C32 and U3 Inspect repair replace Inspect repair replace 1 Output RCA socket defective or damaged 2 Power failure of U3 power amplifier power copper foil broken Replace repair ...

Page 12: ... PCB for bass channel 2 JK4 earphone input socket defective or damaged Such elements damaged as D5 D7 U4 and U5 Inspect repair replace Inspect repair replace 1 Output socket CON1 defective or damaged 2 Power failure of U4 and U5 IC power copper foil broken 3 VR1 potentiometer defective or damaged Replace repair ...

Page 13: ...supply panel damaged 2 Incomplete power filter such capacitor inoperative or damaged as C72 C73 C74 C80 C81 C82 C83 C20 C24 C27 C17 C25 and C21 Such elements damaged as D6 R59 D5 D7 U1 U2 U3 U4 U5 and U6 Inspect repair replace Inspect repair replace 1 Bass potentiometer defective or damaged 2 Power failure of U6 Replace repair ...

Page 14: ... 1 1020 1 2 8 Earphone Socket Inoperative Version No 1 0 Page 14 of 24 Earphone socket inoperative 1 Earphone socket damaged or inoperative 2 Short circuit or open circuit of copper foil for circuit board Replace repair ...

Page 15: ... Guide SW 5 1 1020 1 2 9 Noise from Bass Potentiometer Version No 1 0 Page 15 of 24 Noise from bass potentiometer 1 Bass potentiometer defective or damaged 2 PCB C49 and C52 defective or damaged Replace repair ...

Page 16: ... Inoperative Version No 1 0 Page 16 of 24 VOL inoperative 1 VR2 potentiometer defective or damaged 2 Power failure of U6 volume integrated circuit 3 Broken circuit short circuit of PCB 4 Such elements damaged as D6 R59 JK5 and U6 Replace repair ...

Page 17: ...Service Guide SW 5 1 1020 Version No 1 0 Page 17 of 24 Chapter 2 Product Specifications ...

Page 18: ...ning Electronic volume control SJ3358 Power amplification TDA2030A Power amplification TDA2030 Power amplification TDA2025B Volume tuning FR Signal input CEN Signal input SL Signal input SR Signal input USB Signal input Earphone input Power supply Power amplification TDA2030 FL output FR output SL output SR output CEN output SUB output ...

Page 19: ...Service Guide SW 5 1 1020 Chapter 4 Rendering after Assembly Subwoofer Version No 1 0 Page 19 of 24 ...

Page 20: ...Service Guide SW 5 1 1020 Satellite Version No 1 0 Page 20 of 24 ...

Page 22: ...ervice Guide SW 5 1 1020 Satellite Ref NO Description Part NO 1 FRONT CABINET AMP024402 00G 2 SPEAKER AMK340064 00G 3 SEALING COVER AMP724404 00G 4 BACK CABINET AMP724403 00G Version No 1 0 Page 22 of 24 ...

Page 23: ...Service Guide SW 5 1 1020 Version No 1 0 Page 23 of 24 Chapter 6 Electric Schematic Diagram ...

Page 24: ...Service Guide SW 5 1 1020 Version No 1 0 Page 24 of 24 ...