Equipment information

Samsung YP-30S MP3 player
Manufacturer:
Model:
YP-30S
Date:
2001
Category:
Group:
Description:
DIGITAL AUDIO PLAYER
Service Manual
Manual Type:
Service Manual
Pages:
24
Size:
3.44 Mbytes (3607533 Bytes)
Language:
english
Revision:
Manual-ID:
AH68-00999A
Date:
2001 10 01
Quality:
Electronic document, no scan, very well readable.
Upload date:
2019 09 07
MD5:
6dbd017dc033c8a75e7ff161f925134b
Downloads:
270

Information

1 Introduction and Specifications ... 1-1 1-1. Introduction ... 1-3 1-2. Hardware Options ... 1-4 1-3. 734A-7001 Instrument Enclosure ... 1-4 1-4. 723B-7001 External Battery and Charger ... 1-4 1-5. Accessory Y734 Rack Mount Kit ... 1-4 1-6. Calibration Options ... 1-5 1-7. 732B-000 Special Calibration ... 1-5 1-8. 732B-100 Special Calibration and Drift Characterization ... 1-5 1-9. 732B-200 On-Site Calibration ... 1-5 1-10. Warranty Information ... 1-5 1-11. Service and Reshipment Information ... 1-6 1-12. Specifications ... 1-6 2 Installation ... 2-1 2-1. Introduction ... 2-3 2-2. Unpacking and Inspection ... 2-3 2-3. Selecting Line Voltage and Accessing the Fuse ... 2-4 2-4. Connecting to Line Power ... 2-5 2-5. Installing a 732B or 732B-7001 in a 734A-7001 Instrument Enclosure 2-5 3 Operation ... 3-1 3-1. Introduction ... 3-3 3-2. Summary of the Features ... 3-3 3-3. 732B DC Standard Front Panel ... 3-3 3-4. 732B DC Standard Rear Panel ... 3-3 3-5. 732B-7001 External Battery and Charger Front Panel ... 3-3 3-6. 732B-7001 External Battery and Charger Rear Panel ... 3-3 3-7. 734A-7001 Instrument Enclosure Front Panel ... 3-3 3-8. 734A-7001 Instrument Enclosure Rear Panel ... 3-3 3-9. Powering the Standard ... 3-11 3-10. Setting the BAT Switch ... 3-12 3-11. Charging the Internal Battery ... 3-12 3-12. Powering the Standard from a 732B-7001 ... 3-12 3-13. Replacing the Internal Battery ... 3-13 3-14. Connecting Cables to the Output ... 3-14 3-15. Connecting the GUARD and GROUND ... 3-15 3-16. Monitoring Oven Temperature ... 3-16 3-17. Resetting the IN CAL Indicator ... 3-16 3-18. Monitoring The IN CAL Indicator State Remotely ... 3-16 3-19. Monitoring Long-Term Stability ... 3-17 3-20. Minimizing Error Sources ... 3-18 3-21. Mechanically Induced Errors ... 3-18 3-22. Thermal EMFs ... 3-18 3-23. Output Cable Loading ... 3-18 4 Theory of Operation ... 4-1 4-1. Introduction ... 4-3 4-2. Overall Functional Description ... 4-3 4-3. Model 734A Functional Description ... 4-5 4-4. Model 732B-7001 External Battery/Power Supply ... 4-5 4-5. 732B Circuit Description ... 4-5 4-6. 10V Reference Circuit ... 4-5 4-7. Generating the 1.018V Output ... 4-7 4-8. Biasing the Refamp for Low Temperature Coefficient ... 4-7 4-9. Sense Current Cancellation ... 4-7 4-10. Buffering of the 10V Output ... 4-8 4-11. Oven Temperature Controller A4 ... 4-8 4-12. A1 Front Panel Assembly ... 4-8 4-13. Power Supplies and Battery Charger Assembly A5 ... 4-9 4-14. Overvoltage Protection Circuitry ... 4-9 4-15. Raw DC Power supply ... 4-11 4-16. Battery Charger ... 4-11 4-17. +11.5V Preregulator ... 4-11 4-18. +11.5V Low-Dropout Regulator ... 4-12 4-19. -6V Power supply ... 4-12 4-20. IN CAL Logic ... 4-12 4-21. LED Drive Logic ... 4-12 4-22. AC Power to Battery Power Switching Circuitry ... 4-13 4-23. Battery Circuit ... 4-13 4-24. Rear Panel Connections ... 4-13 4-25. Low-Battery Shutdown Circuitry ... 4-14 5 Maintenance ... 5-1 5-1. Introduction ... 5-3 5-2. Service Information ... 5-3 5-3. Replacing the Fuse ... 5-3 5-4. Cleaning the External Surfaces ... 5-3 5-5. Calibration ... 5-3 5-6. Preparing for Calibration ... 5-4 5-7. Preparing for 10V Calibration with Adjustment ... 5-4 5-8. Calibration with Adjustment ... 5-6 5-9. Calibration Without Adjustment ... 5-8 5-10. Access Procedures ... 5-9 5-11. Initial Access Procedure ... 5-9 5-12. Replacing the Battery ... 5-9 5-13. Replacing the Oven Assembly ... 5-13 5-14. Accessing the A5 Battery Charger ... 5-13 5-15. Removing the Power Transformer Assembly ... 5-13 5-16. Troubleshooting ... 5-14 5-17. 10V Reference Performance Test ... 5-14 5-18. Troubleshooting the A5 Battery Charger Assembly ... 5-14 5-19. Transformer/Rectifier/Filter ... 5-15 5-20. Battery Charger ... 5-15 5-21. +11.5V DC Preregulator ... 5-15 5-22. +11.5V DC Regulator ... 5-16 5-23. -6V DC Supply ... 5-16 5-24. IN CAL LED Logic ... 5-16 6 List of Replaceable Parts ... 6-1 6-1. Introduction ... 6-3 6-2. How to Obtain Parts ... 6-3 6-3. Manual Status Information ... 6-3 6-4. Newer Instruments ... 6-3 6-5. Service Centers ... 6-4 6-6. Parts ... 6-4 7 Schematic Diagrams ... 7-1 A1 Front Panel PCA ... 7-3 A2 Flex Circuit PCA ... 7-5 A3 BCD Switch PCA ... 7-6 A4 Oven Control PCA ... 7-7 A5 Power supply PCA ... 7-8

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Service Manual
Manual Type:
Service Manual
Pages:
24
Size:
3.44 Mbytes (3607552 Bytes)
Language:
english
Revision:
Manual-ID:
AH68-00999A
Date:
Quality:
Electronic document, no scan, very well readable.
Upload date:
2015 10 04
MD5:
6e5a51e969dcca840a364d701ca18adf
Downloads:
943

Information

Precautions Specifications Parts Description Mass-production Initialization Program Troubleshooting Guide Exploded View and Disassembly Order Electrical Part List Block Diagram Internal Block Diagram of Main IC PCB Wiring Diagrams Schematic Diagram

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