Service Guide Model No : SP-HF2020 Table of Contents Revision History …………………………………………………………………….2 Table of Contents ……………….……………………………………………………3 Getting Started ……………………………………………………………………….4 Conventions Used in this Guide ……………………….…..………………..4 Safety Precautions …….……………………………………………………..4 Chapter 1. How to Handle Defective Returns……………………………………..5 1.1 Speaker no sound 1.2 Power LED no light 1.3 Headphone no sound...
Service Guide Model No : SP-HF2020 Getting Started Conventions Used in this 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 .
Service Guide Model No : SP-HF2020 Chapter 1. How to Handle Defective Returns Overview Receiving Defective speakers from Customers Function NG __ __ Analyzing possible malfunction causes Deciding & proceeding the Function NG rectification methods Function OK Replace necessary defective parts...
Service Guide Model No : SP-HF2020 Problems Item Problem Description Speaker no sound LED no light EQ/Source button no function Remote control no function Page 6/16...
Page 7
Service Guide Model No : SP-HF2020 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. One or more channels no sound (Line in/Coaxial in no function)
Page 8
Service Guide Model No : SP-HF2020 LED no light Problem LED no light Analyzer and Component cold Defective Power Switch or LED Identify the Causes solder or Short IC5,IC6,IC7,U101 defective Circuit ,F1,T1,U1 or U2 Check solder Check and Replace defective Power...
Page 9
Service Guide Model No : SP-HF2020 Remote control no function Remote control no function Problem Analyzer and Component cold RF100 or Remote hand solder or Short set defective Identify the Causes Circuit Check solder Replace defective RF100 point on PCBA...
Service Guide Model No : SP-HF2020 Chapter 3 Block Diagram Coaxial in Audio DSP IC LCH & RCH IC-AD12250A IC-DAE-4P Line in LCH & RCH EQ/Source & Volume control Page 11/16...
Service Guide Model No : SP-HF2020 Chapter 5. Part List DESCRIPTION UNIT Part No. AD12250A IC AT24C512 BPC817 YJ-KB3060 Transformer DAE-4P FSDM0565RT IC TL431 IC TPS54231D POWER CORD 2P VPE003242-001 SPK UNIT FSI543008-1800 SPK UNIT FSA531580-380 SPK UNIT FSA520740-340 RCA CABLE VRC155007-003 POWER PCB ASS’Y...
Service Guide Model No : SP-HF2020 Chapter 7. Important Notes 7.1 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.
Need help?
Do you have a question about the SP-HF2020 and is the answer not in the manual?
Questions and answers