ervice SP-HF1100X uide Table of Contents Revision History........................1 Table of Contents........................2 Getting Started.........................3 Conventions Used in this Guide................3 Safety Precautions....................3 Chapter 1. How to Handle Defective Returns..............4 1.1 Overview.......................4 1.2 Problems.......................5 1.2.1 Power LED (indicator) Unlight............6 1.2.2 Does not work or one channel no sound...........7 1.2.3 Noise....................7 1.2.4 Treble level too low or one channel no effect.........
ervice SP-HF1100X uide Getting Started Conventions Used in this Guide Pay Special Attention: Instructions that are important to Attention 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 handling the speaker described in this guide: Place the speakers on a flat, level and stable surface.
ervice SP-HF1100X uide Chapter 1. How to Handle Defective Returns 1.1 Overview Receiving Defective Speakers from Customers Verifying problems & proceeding necessary tests Functioning NG Analyzing possible malfunction causes Deciding & proceeding Functioning NG the rectification methods Functioning OK Replacing necessary defective parts Proceeding tests to verify if the speaker is...
ervice SP-HF1100X uide 1.2 Problems Item Problem Descriptions Power LED (indicator) unlight 1.2.1 Does not work or one channel no sound 1.2.2 Noise 1.2.3 1.2.4 Treble level too low or no effect 1.2.5 Bass level too low or no effect 1.2.6 Headphone does not work Page 5/17...
ervice SP-HF1100X uide Attention Please follow the numbered sequence marked withing parenthesis given in individual flow chart, in that this is the best-recommended sequence to rectify the problems. 1.2.1 Power LED (indicator) unlight Problem Power LED (indicator) unlight Analyze and Secondary wire Diode D1-D4 Defective power...
ervice SP-HF1100X uide 1.2.2 Does not work or one channel no sound Problem Does not work or one channel no sound Analyze and Defective Broken or Defective IC audio cable short circuit U1 or U2 Identify the Causes Solutions Replace Check solder Check and replace audio cable...
ervice SP-HF1100X uide 1.2.4 Treble level too low or no effect Problem Treble level too low or no effect Analyze and R15 R20 or C5 Defective VR1 is/are defective Identify the or disconnected from PCB Causes Solutions Resolder or replace Replace defective VR defective component(s) 1.2.5 Bass level too low or no effect...
ervice SP-HF1100X uide 1.2.6 Headphone does not work Problem Headphone does not work Analyze and Defective Phone jack or R1 or R2 defective or poor connection with PCB disconnected from PCB Identify the Causes Solutions Resolder or replace Replace defective Phone jack defective component(s) or resolder the phone jack Page /1...
ervice SP-HF1100X uide Chapter 5. Part List Ref. No. Description Mfr's Part No. RT71160 Screw, TA3 x 6mm, Black RT71342 Screw, TM3 x 14mm, Black RTC1125 Rear Board (L), 143 x 238 x 6mm, Black(2014), MDF, T=6mm RT56306 RCA Jack, Black, RJ-3622 RT71168 Screw, PTB3 x 10mm, White RT86710...
ervice SP-HF1100X uide Chapter 8. Important Notes 8.1 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, hence it is necessary to pack each PCB assembly with a separate static protecting bag, in order to avoid static electricity.
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