KYE Systems Corp. Genius SW-2.1 1500 Service Manual Download Page 11 | Manualshive

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Service Guide

SW-2.1 1500

1.2.5 Noise

Problem

Analyze and

identify the

causes

Solutions

Version 1.0 Page 11 of 23

Filter capacitor/ diode dry-soldered

or damaged, pls check EC14

，

EC12

，

EC18

，

EC15

，

EC6

，

EC13

，

D1

，

D2

，

D3

，

D4

The power supply of each IC

is

normal or not

PCB dry-solder or broken

Check and replace

Repair or replace

Repair

Driver units damaged

Woofer cabinet leaks,

closed not well.

Or caused by vibration from

too long lead wire of driver

units

Noise

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10
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Summary of Contents for Genius SW-2.1 1500

Page 1: ...Service Guide SW 2 1 1500 SERVICE GUIDE KEY SYSTEM CORP Version 1 0 Page 1 of 23 ...

Page 2: ...Service Guide SW 2 1 1500 Revision History Version Date Change 1 0 2 0 03 2009 Version 1 0 Page 2 of 23 ...

Page 3: ...ound 9 1 2 4 Woofer no sound 10 1 2 5 Noise 11 1 2 6 LED indicators no light 12 1 2 7 Headphone jack output no sound 13 1 2 8 VR headphone jack or line in jack abnormal 14 Chapter 2 Specification 15 Satellite 15 Woofer 15 Chapter 3 Block diagram 16 Chapter 4 Exploded view 17 Subwoofer 17 Satellite 18 Wired control 19 Chapter 5 Part list 20 Woofer 20 Satellite 21 Wired control 21 Chapter 6 Importan...

Page 4: ...face 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 to drop into the subwoofer case through its ventilator as it could result in fatal electric shock or fire Place the unit far enough from other equipments for good heat dissipation Do not perform a...

Page 5: ...Version 1 0 Page 5 of 23 Receiving Defective speaker from customers Return the speakers with proper repacking to customers Verifying problems Proceeding Necessary tests Analyzing possible Malfunction cause Deciding proceeding the Rectification methods Replace necessary Defective parts Verifying problems Proceeding Necessary tests ...

Page 6: ... 1 2 1 No power LED indicator no light 1 2 2 No sound 1 2 3 Right or left channel no sound 1 2 4 Woofer no sound 1 2 5 Noise 1 2 6 LED indicator no light 1 2 7 Headphone jack output no sound 1 2 8 VR headphone jack or line in jack abnormal Version 1 0 Page 6 of 23 ...

Page 7: ...Page 7 of 23 Defective transformer Defective or damaged AC cable or power switch Or caused by the following Or caused by the following 1 transformer secondary wire loosely connected with PT1 jack 2 Dry soldering of PT1 in SW 2 1 1500 PCB 3 SW 2 1 1500 PCB Copper foil broken 4 G6 plug of the wired control defectively connected or damaged 5 VR2 on the ym9660 2 1L CON PCB damaged or dry soldered 6 JK...

Page 8: ...ed dry soldered or broken G6 plug of the wired control defectively connected or damaged JK2 in SW 2 1 1500 PCB defective VR2 YM9660 2 1L CON PCB damaged or PCB copper foil broken Repair or replace Repair or replace Or caused by the following defective components in SW 2 1 1500 PCB C1 IC4 IC3 IC2 Q1 Q2 Q3 ZD2 JK1 EC6 Repair resolder or replace ...

Page 9: ...eplace JK6 JK7 or VR2 in YM9660 2 1L CON PCB defective IC1 or IC3 or related components damaged in SW 2 1 1500 driver unit or speaker cable defective or loosely connected Audio cable defective or loosely connected PCB damaged dry soldered or short circuited JK1 JK2 JK3 in SW 2 1 1500 defective or damaged G6 plug of the wired control defectively connected or damaged Right or left channel no sound ...

Page 10: ...olution Version 1 0 Page 10 of 23 PCB damaged dry soldered or short circuited 2 IC2 IC3 or VR1 or related components damaged in SW 2 1 1500 PCB Repair or replace Repair or replace Woofer driver unit Speaker cable of SW 2 1 1500 SP1 dry soldered or defective Repair or replace Woofer no sound ...

Page 11: ...citor diode dry soldered or damaged pls check EC14 EC12 EC18 EC15 EC6 EC13 D1 D2 D3 D4 The power supply of each IC is normal or not PCB dry solder or broken Check and replace Repair or replace Repair Driver units damaged Woofer cabinet leaks closed not well Or caused by vibration from too long lead wire of driver units Noise ...

Page 12: ...de SW 2 1 1500 1 2 6 LED indicator no light Problem Analyze and identify the causes Solutions Version 1 0 Page 12 of 23 Check and replace 1 LED1 defective 2 YM9660 2 1L CON PCB short circuit LED indicator no light ...

Page 13: ...00 1 2 7 Headpone jack output no sound Problem Analyze and identify the causes Solutions Version 1 0 Page 13 of 23 Check and replace JK7 in YM9660 2 1L CON PCB defective or its related copper foil broken Headphone jack no use ...

Page 14: ...e causes Solutions Version 1 0 Page 164of 23 VR Defective VR may cause wired control VR or bass VR having scratching sound when rotating Check and replace Check and replace Jack JK6 or JK7 in YM9660 2 1L CON PCB defective JK2 JK3 OR JK1 in SW 2 1 1500 PCB defective VR headphone jack or line in jack abnormal ...

Page 15: ...ION ONE CHANNELIN OTHER CHANNEL INPUT SHORTING d B 64 64 40 10 11 HUM NOISE VOLUME MAX INPUT SHORTING m V 0 6 0 6 2 12 HUM NOISE VOLUME MIN INPUT SHORTING m V 0 4 0 4 1 Woofer NO DESCRIPTION UNIT Normal LIMIT 27 1 RATED OUTPUT POWER 100HZ 10 THD W 25 160 2 SENSITIVITY 100Hz RATED O P POWER m V 150 15 30 3 SENSITIVITY 100Hz 1W O P POWER m V 30 5 120 4 MAX INPUT LEVEL 1 THD m V 120 12 0 1 5 0 5 DIST...

Page 16: ...Service Guide SW 2 1 1500 Version 1 0 Page 16 of 23 Chapter 3 Block diagram ...

Page 17: ...Service Guide SW 2 1 1500 Subwoofer Version 1 0 Page 17 of 23 Chapter 4 Exploded view ...

Page 18: ...Service Guide SW 2 1 1500 Satellite Version 1 0 Page 18 of 23 Chapter 4 Exploded view ...

Page 19: ...Service Guide SW 2 1 1500 Wired control Version 1 0 Page 19 of 23 Chapter 4 Exploded view ...

Page 20: ...crew hole EP41610484 10 rubber feet mat c18 2 5MM EP73060057 11 screw 4 22PWM EP24140016 12 13 M4 black washer EP25020002 14 M4 nut EP25010002 15 black washer EP25020011 woofer driver unit A 135 1 EP16050062 16 male plastic buckle EP41610064 17 cloth cover for woofer driver unit EP64000189 18 19 screw 3 12PA EP24100036 EP23010120 20 AL heat sink 21 LX 04 holder EP22010006 22 bass knob A 826 1 EP40...

Page 21: ...t mat c10 1 5 plastic EP24150017 8 plastic plate to cover the hole in the hanger EP41610473 9 Wired control rotating knob plastics EP40714157B 1 middle part of the wired control plastics EP40840046B 2 transparent LED cover EP41610069 3 screw 2 5 8BA EP24010027 4 HC15 PCBA EP1P150003 5 screw 3 6PWA EP24120081 6 base of the wired contol plastics EP40840047B 7 screw 3 10PA EP24100032 8 rubber foot ma...

Page 22: ...eparate 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 damage 6 2 Short of spare parts while repairing a speaker system If you are short of spare parts when you have some speaker systems waiting to be repaired it would be recommended to take the necessary ...

Page 23: ...Service Guide SW 2 1 1500 SW 2 1 1500 AMP PCB Version 1 0 Page 23 of 23 Chapter 7 Schematic diagram ...

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