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File name SDV837SVT20 SERVICE 20MANUAL.pdf

SERVICE MANUAL DVD PLAYER DP837 SDV837SVT GB CONTENTS 1. PRECAUTIONS -----------------------------------------------------------------------------------------------------------------------2 1-1 SAFETY PRECAUTIONS ------------------------------------------------------------------------------------------------------------2 1-2 SERVICING PRECAUTIONS --------------------------------------------------------------------------------------------------------3 1-2-1 General Serving Precautions ------------------------------------------------------------------------------------------------3 1-2-2 Insulation Checking Procedure ---------------------------------------------------------------------------------------------4 1-3 ESD PRECAUTIONS ---------------------------------------------------------------------------------------------------------------4 2. REFERENCE INFORMATION ----------------------------------------------------------------------------------------------------5 2-1 COMPONENT DESCRIPTIONS-----------------------------------------------------------------------------------------------------5 2-1-1 DVD SANYO HD65 PUH----------------------------------------------------------------------------------------------------5 2-1-2 DVD Processor Chip MTK1389F ------------------------------------------------------------------------------------------7 2-1-3 Serial EEPROM, 2K (256 x 8) (24C02) or 16 K (2048 x 8) (24C16)------------------------------------------------ 22 2-1-4: FLASH MEMORY( CMOS 16M (2M 8/1M 16) BIT) ----------------------------------------------------------- 22 2-1-5 512K X 16 Bit X 2 Banks Synchronous DRAM (A43L0616) ---------------------------------------------------------- 25 3. PRODUCT SPECIFICATIONS -------------------------------------------------------------------------------------------------- 28 4. UPGRADING SYSTEM AND CHANGING THE REGION CODE------------------------------------------------------ 29 5. OPERATING INSTRUCTION---------------------------------------------------------------------------------------------------- 30 MAINTENANCE & TROUBLESHOOTING --------------------------------------------------------------------------------------------- 30 6.DISASSEMBLY AND REASSEMBLY------------------------------------------------------------------------------------------ 32 7.TROUBLESHOOTING ------------------------------------------------------------------------------------------------------------- 33 8. BLOCK DIAGRAM ----------------------------------------------------------------------------------------------------------------- 34 9. CIRCUIT DIAGRAMS ------------------------------------------------------------------------------------------------------------- 35 10. WIRING DIAGRAM:-------------------------------------------------------------------------------------------------------------- 48 -1- 1. PRECAUTIONS 1-1 Safety Precautions 1) Before returning an instrument to the customer, always make a safety check of the entire instrumen