Do you have a question about the Sony MDP-440 MDP-640D and is the answer not in the manual?
Technical details for digital audio output performance.
Details on laser material, wavelength, and emission duration.
Identifies and describes the unit's parts and their functions.
Steps for initiating disc playback and basic controls.
Step-by-step instructions for removing the player's cabinet.
Steps for removing the disc tray mechanism.
Identifies the physical placement of circuit boards within the unit.
Visual representation of the system's interconnected blocks.
Schematic diagram for the player's frame assembly.
Exploded view of the unit's exterior decorative parts.
Exploded view of the main frame assembly components.
Exploded view of the MD chassis components.
List of semiconductor parts used in the device.
Tools required for performing adjustments.
Important warnings and precautions before starting adjustments.
Procedures for checking power supply voltages on PS-193 board.
Steps for adjusting the microprocessor clock for PAL systems.
Steps for adjusting the microprocessor clock for NTSC systems.
Procedures for adjusting the LD servo system.
Steps to adjust the LD focus gain using RV107.
Adjusting TAN cam and RAD TILT for cross talk balance.
Steps for focusing balance adjustment on SV-33 board.
Steps to adjust LD tracking gain using RV106.
Procedure for RD adjustment within CD servo system.
Steps for CD focus balance adjustment using RV103.
Adjusting the video output level for MP-31 board.
Adjusting burst gate position on MP-31 board.
Adjusting REF H signal on MP-31 board.
Adjusting analog audio output levels on AF-52 board.
Adjusting digital audio system parameters on MP-31 board.
Location of adjustment components on MP-31 board.
Location of adjustment components on RG-23 board.
Location of adjustment components on SV-33 board.












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