Service Guide SP-S110 Table of Contents Revision History………………………………………………………………….2 Table of contents……………………………………………………………...…3 Getting Start…………………………………………………….………………...4 Conventions Used in this Guide…………………………………………….…4 Safety Precautions………………………………………………………………4 Chapter 1. How to Handle Defective Returns……………………………….5 1.2 Problem………………………………………………………………………6 1.2.1 No power,LED (indicator)unlighted……………………………….7 1.2.2 No sound…………………………………………………………….…….8 1.2.3 Noise………………….….……….……….……….……….……….….…9 1.2.4 LED indicators no light when working….…..….……….……….….…10 1.2.5 Volume switch no use…………………………………………….…..…11 1.2.6 Headphone jack no use……………….…………….……………….….12 Chapter 2.
Service Guide SP-S110 Getting Started Conventions Used in the Guide Pay Special Attention: Instructions that are important to remember and may prevent mistakes. Caution: Information that, if not followed, may result in damage to the product. Safety Precautions The following precautions should be observed in handing the speaker described in this guide: Place the speakers on a flat, level and stable surface.
Service Guide SP-S110 Chapter 1. How to Handle Defective Returns 1.1 Overview Receiving Defective speaker from customers Verifying problems Proceeding Necessary tests Function NG Function OK Function NG Analyzing possible Malfunction cause Deciding & proceeding the Rectification methods Replace necessary Defective parts Verifying problems Proceeding...
Service Guide SP-S110 1.2 Problems Item Problem Description 1.2.1 No power,LED (indicator)unlighted 1.2.2 No sound 1.2.3 Noise 1.2.4 LED indicators no light when working 1.2.5 Volume switch no use 1.2.6 Headphone jack no use Version 1.0 Page 6 of 19...
Service Guide SP-S110 *Attention Please follow the numbered sequence marked within parenthesis given in individual Flow chat in that this is the best-recommended sequence to rectify the problems. 1.2.1 No power,LED (indicator)unlighted No power,LED (indicator)unlighted Problem Analyze Power switch poor Defective Dry-soldered secondary...
Service Guide SP-S110 1.2.2 no sound No sound Problem Power supply Or VR1 damaged PCB damaged, TDA2822 abnormal or dry-soldered or damaged Analyze and short-circuited identify the causes Repair or replace Repair, resolder Repair or replace replace Solutions Version 1.0 Page 8 of 19...
Service Guide SP-S110 1.2.3. Noise Problem Noise 1. Filter capacitor not work, Or Vibration from too Or VR poor connected; dry-soldered, or diode damaged long lead wire of driver Analyze and 2. Or Power supply for IC units; damaged/ identify the TDA2822 abnormal short-circuited driver...
Service Guide SP-S110 1.2.4. LED indicators no light when working Problem LED indicators no light when working 1. LED1 damaged or PCB copper foil broken Analyze and 2. LED1 , R7 defective or dry-soldered identify the causes Check and replace Solutions Version 1.0 Page 10 of 19...
Service Guide SP-S110 1.2.5. Volume switch no use Problem Volume switch no use PCB dry-soldered, or broken Analyze and VR1 defective identify the causes Check and replace Solutions Version 1.0 Page 11 of 19...
Service Guide SP-S110 1.2.6. Headphone jack no use Problem Headphone jack no use Poor connection in PS1 JACK Analyze and identify the causes Check and replace Solutions Version 1.0 Page 12 of 19...
Service Guide SP-S110 Chapter 5 Part list Active speaker Ref. NO Description Part NO. SP-S110 cloth cover EP41010160 screw, 3*12BA EP24010040 driver unit, A-103, 5090 4ohm 3W EP16010007 SP-S110 front of active speaker EP40310330 screw, 3*8BA EP24010014 transformer, 230V 50HZ 6V-0.2A EP13500032 SP-S110 back of active speaker EP40510097...
Service Guide SP-S110 Chapter 6. Important Notes 6.1 Packing requirement for sending the PCB assembly by post PCB assembly is a kind of sophisticated electronic circuit board. Well packing will be required when sending them by post. *Some sophisticated IC components are mounted on the PCB assembly;...
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