DV-2500H Service Manual Table of Contents General Section Cautions/Warnings Safe Warnings Precautions Software Upgrade Circuit Diagram and Component Layout MPEG IC Block Diagrams Power supply Circuit Diagram and Component Layout MPEG Circuit Diagram and Component Layout Front panel Circuit Diagram and Component Layout...
DV-2500H Service Manual 1. General Section Cautions/Warnings 1.1. 1.1.1. Product Safety Notice Parts marked with the symbol in the schematic diagram have critical characteristics. Use ONLY replacement pares recommended by the manufacturer. It is recommended that the unit be operated from a suitable DC supply or batteries during initial check out procedures.
DV-2500H Service Manual 1.2. Safe Warnings 1.2.1. Protection of Eyes from Laser Beam To protect eyes from invisible laser beam during servicing DO NOT LOOK AT THE LASER BEAM 1.2.2. Laser Caution CAUTION Adjusting the knobs, switches, and controls, etc. or taking actions not specified herein may result in a harmful emission of laser beams.
DV-2500H Service Manual 1.3. Precautions 1.3.1. ESD Precautions in Repairing 1.3.1.1. Do not apply excessive pressure on the mechanical parts (moving pares), including the Pickup Block, as extremely high mechanical precision or required in these parts. 1.3.1.2. When soldering microprocessor signal processing IC’s, use a ceramic soldering iron or a soldering...
DV-2500H Service Manual 1.4. Software Upgrade You can upgrade DVD Player using the software we provide as following step: ― Creating a software upgrade CD ― Use only a new CD-R/CD-RW(not an erased one). ― Give the CD a name of your choice(e.g. version and unit name).
DV-2500H Service Manual 3.2. Read Disc Trouble Service Flow Chart Read disc problem in a DVD player is a very complicated issue that may involve complex issues. This problem is not only relation to the electronic circuit, but also very much relation to the operation environment.
DV-2500H Service Manual 3.3. Video Trouble Service Flow Chart 3.3.1. Composite Video Trouble Service Flow Chart Composite Video Trouble Check “SETUP” Item See “User Manual” Check Y1 Output Signal Replace Y1 Parts Check C165/C166 Signal Replace C165/C166 Check R217/R224 Signal...
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DV-2500H Service Manual 3.3.2. SCART Video Trouble Service Flow Chart Composite SCART Video Trouble Check “SETUP” Item See “User Manual” Check Y1 Output Signal Replace Y1 Parts Check C194/C195/C199/ Replace C194/C195/C199/ C200/C203/C204 Signal C200/C203/C204 Check D10/ D12/ D13 Replace D10/D12/D13...
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DV-2500H Service Manual 3.3.3. S- Video Trouble Service Flow Chart Composite S- Video Trouble Check “SETUP” Item See “User Manual” Check Y1 Output Signal Replace Y1 Parts Check C184/C185/C188/C189 Replace C184/C185/ Signal C188/C189 Check D8/D9 Signal Replace D8/D9 Check L4/L5 Signal...
DV-2500H Service Manual 3.5. Front Control Trouble Service Flow Chart Front Control Trouble Check between JP1 and MPEG Connection Replace the cable between Check between JP2 and Power Supply Connection Check Power Supply Check U2 Pin9/25 Voltage Check U2 SEG Signal...
DV-2500H Service Manual 3.6. Remote Control Trouble Service Flow Chart Remote Control Trouble Check Remote Control Replace Battery Replace Control Check U3 Pin2 Voltage Check Power Supply Check U3 Pin3 Output Signal Replace U3 Check U2 IR Input Signal Replace U2...