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Summary of Contents for KYE Systems Corp. GHT-502D
- Page 1 Service Guide GHT-502D SERVICE GUIDE SYSTEMS CORP. GHT-502D Version : 1.0 Version : 1.0 Page 1 of 18...
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Page 2: Revision History
Service Guide GHT-502D Revision History Version Date Change 11/05/2004 Version : 1.0 Page 2 of 18... -
Page 3: Table Of Contents
Service Guide GHT-502D 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 Overview …………………………………………………………..5 1.2 Problems …………………………………………………………...6 1.2.1 FL/FR, RL/RR channels no sound …………………7 1.2.2 CEN channel no sound………….……………..…8... -
Page 4: Getting Started
Service Guide GHT-502D 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 . -
Page 5: Chapter 1. How To Handle Defective Returns
Service Guide GHT-502D Chapter 1. How to Handle Defective Returns 1.1 Overview Receiving Defective speakers from Customers Verifying problems Proceeding necessary tests Function NG Analyzing possible malfunction causes Deciding & proceeding the Function NG rectification methods Function OK Replace necessary defective parts... -
Page 6: Problems
Service Guide GHT-502D 1.2 Problems Item Problem Description 1.2.1 FL/FR, RL/RR channels no sound 1.2.2 CEN channel no sound 1.2.3 Woofer channel no sound 1.2.4 Decoder no power Version : 1.0 Page 6 of 18... - Page 7 Service Guide GHT-502D 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 FL/FR , RL/RR channels no sound FL/FR,RL/RR channels no sound...
- Page 8 Service Guide GHT-502D 1.2.2 CEN channel no sound CEN channel no sound Problem Defective IC301 ,U901,IC502 Speaker cable dis-connect or Analyzer and Broken or short circuit speaker damaged C614,C618 Identify the Causes Check solder points on Check and Replace Re-connect speaker cable or...
- Page 9 Service Guide GHT-502D 1.2.4 Decoder no power Decoder no power Problem Speaker cable dis-connect or Analyzer and Defective D1-D4,IC1,C197 Broken or short circuit speaker damaged Identify the Causes Check solder points on Check and Replace Re-connect speaker cable or defective IC or...
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Page 10: Chapter 2. Specifications
Service Guide GHT-502D Chapter 2. Specifications ： Satellite - Center (AT 1KHz) Description Unit Specifications W 7 ± 1 Out Power at THD 10% mV 1400 ± 300 Sensitivity Freq. Response (Ref:-3dB) Hz 28 ~ 9.5K dB ≧ 70 S/N ratio mV ≦... - Page 11 Service Guide GHT-502D ： Host(Woofer) (AT 100Hz) Description Unit Specifications 40 ± 5 Out Power at THD 10% 320± 100 Sensitivity Freq. Response (Ref:-3dB) 20 ~ 150 ≧ 70 S/N ratio ≦ 10 Hum & Noise Vol: max Version : 1.0...
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Page 12: Chapter 3. Block Diagram
Service Guide GHT-502D Chapter 3. Block Diagram Stand-By FL.CH Speaker FR.CH Speaker Volume Control Power RL/RR -AUDIO IN &FILTER Amplifier RL.CH Speaker Volume Control FL/FR -AUDIO IN &FILTER RR.CH Speaker Power CEN.CH Speaker Amplifier Volume Control SUB/CEN -AUDIO IN &FILTER... -
Page 13: Chapter 4. Exploded View
Service Guide GHT-502D Chapter 4. Exploded View Host ( Woofer ) Version : 1.0 Page 13 of 18... - Page 14 Service Guide GHT-502D Satellite Version : 1.0 Page 14 of 18...
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Page 15: Chapter 5. Part List
2-100-08 TRANSFORMER, 230V:13.4VACx2 & 3.7A; 4-100-02 14.5VAC & 0.8A 18 AUDIO CABLE-1, 3 to 3 , GHT-502 3-100-08 19 DC POWER CORD, GHT-502D 4-100-03 20 CARTON, GHT-502D 4-102-03 21 CUSHION, GHT-502D 4-102-02 22 Round Yellow Type Label ( ON CARTON ) 1-102-05 23 S/N LABEL ( ON CARTON &... - Page 16 Service Guide GHT-502D 26 PE BAG, SW-Flat2.1 1250/SATE. 2-102-08 27 PE BAG, DC POWER CORD, GHT-502D 4-102-05 28 PE BAG, AUDIO CABLE 3-102-05 29 CARDBOARD, English, GHT-502D 4-102-06 Version : 1.0 Page 16 of 18...
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Page 17: Chapter 6. Schematic Diagram
Service Guide GHT-502D Chapter 6. Schematic Diagram Version : 1.0 Page 17 of 18... -
Page 18: Chapter 7. Important Notes
Service Guide GHT-502D 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. * 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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