Genius SW-J2.1 1200 Service Manual Download Page 6 | Manualshive

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Genius SW-J2.1 1200 Service Manual Download Page 6

Service Guide

SW-J2.1 1200

1.2 Problems

Item Problem Description

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

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Summary of Contents for SW-J2.1 1200

Page 1: ...Service Guide SW J2 1 1200 SERVICE GUIDE KEY SYSTEM CORP Version 1 0 Page 1 of 23 All manuals and user guides at all guides com ...

Page 2: ...Service Guide SW J2 1 1200 Revision History Version Date Change 1 0 05 04 2009 Version 1 0 Page 2 of 23 All manuals and user guides at all guides com ...

Page 3: ... 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 Important notes 22 Chapter 7 S...

Page 4: ...peakers 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 any maintenance with wet...

Page 5: ...3 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 All manuals and user guides at all guides com ...

Page 6: ...dicator 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 All manuals and user guides at all guides com ...

Page 7: ...LED indicator unlighted Repair or replace Defective transformer Defective or damaged AC cable or power switch resolder or replace Or caused by the following 1 transformer secondary wire loosely connected with PT1 jack in YM9660 2 1L AMP 2 Dry soldering of PT1 in YM9660 2 1L AMP 3 Copper foil of YM9660 2 1L AMP PCB broken 4 G6 plug of the wired control defectively connected or damaged 5 VR2 on the ...

Page 8: ...of the wired control defectively connected or damaged JK2 in YM9660 2 1L AMP PCB defective VR2 in 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 YM9660 2 1L AMP PCB IC1 IC4 IC3 IC2 Q1 ZD1 ZD1 JK1 EC6 R21 EC6 JK1 SP1 Repair resolder or replace All manuals and user guides at all guides com ...

Page 9: ... or VR2 in YM9660 2 1L CON PCB defective IC1 or IC3 or related components damaged in YM9660 2 1L AMP PCB Driver unit or speaker cable defective or loosely connected Audio cable defective or loosely connected PCB damaged dry soldered or short circuited JK1 JK2 and JK3 in YM9660 2 1L AMP defective or damaged G6 plug of the wired control Right or left channel no sound All manuals and user guides at a...

Page 10: ... of 23 PCB damaged dry soldered or short circuited 2 IC2 IC3 or VR1 or related components damaged in YM9660 2 1L AMP PCB Repair or replace Repair or replace Woofer driver unit Speaker cable of YM9660 2 1L AMP SP1 dry soldered or defective Repair or replace Woofer no sound All manuals and user guides at all guides com ...

Page 11: ...dered or damaged pls check EC14 EC12 EC1 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 All manuals and user guides at all guides com ...

Page 12: ...D 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 All manuals and user guides at all guides com ...

Page 13: ...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 All manuals and user guides at all guides com ...

Page 14: ...sion 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 YM9660 AMP PCB defective VR headphone jack or line in jack abnormal All manuals and user guides at all guides com ...

Page 15: ...ER CHANNEL INPUT SHORTING d B 55 53 40 11 HUM NOISE VOLUME MAX INPUT SHORTING m V 0 6 0 6 2 12 HUM NOISE VOLUME MIN INPUT SHORTING m V 0 3 0 3 1 Woofer NO DESCRIPTION UNIT Normal LIMIT RATED OUTPUT POWER 100HZ 10 THD 16 3 1 W 15 SENSITIVITY 100Hz RATED O P POWER 145 2 150 15 m V 32 3 SENSITIVITY 100Hz 1W O P POWER m V 30 5 110 4 MAX INPUT LEVEL 1 THD m V 110 15 5 DISTOPTION 100Hz 1W OUT 0 1 0 5 6 ...

Page 16: ...Service Guide SW J2 1 1200 Version 1 0 Page 16 of 23 Chapter 3 Block diagram All manuals and user guides at all guides com ...

Page 17: ...Service Guide SW J2 1 1200 Subwoofer Version 1 0 Page 17 of 23 Chapter 4 Exploded view All manuals and user guides at all guides com ...

Page 18: ...Service Guide SW J2 1 1200 Satellite Version 1 0 Page 18 of 23 Chapter 4 Exploded view All manuals and user guides at all guides com ...

Page 19: ...Service Guide SW J2 1 1200 Wired control Version 1 0 Page 19 of 23 Chapter 4 Exploded view All manuals and user guides at all guides com ...

Page 20: ...back P9600 2 1L EP40910384 11 footmat 18 3 0MM EP73060057 12 screw 4 22PWM EP24140016 13 black washer M4 EP25020002 14 M4 nut EP25010002 16 Driver unit A 105 9 EP16040018 17 Male plastic buckle A 858CEV EP41610064 18 woofer driver unit cloth cover SW 2 1 1500 EP64000189A 19 scew 3 5 12PA EP24100030 20 AL heat sink YM363 2 1 EP23011049 21 L shaped holder LX 04 EP22010006 22 bass knob A 826 1 EP4071...

Page 21: ...10 1 5 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 mat c10 2 EP24150017 9 iron plate EP21010122 10 Version 1 0 Page 21 of 23 Chapter 5 Part ...

Page 22: ...ing 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 parts from one Speaker...

Page 23: ...Service Guide SW J2 1 1200 SW J2 1 1200 AMP PCB Version 1 0 Page 23 of 23 Chapter 7 Schematic diagram All manuals and user guides at all guides com ...

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