Manual for DVD-S540/DV-S5650

Manual for DVD-S540/DV-S5650

Brand: YAMAHA

Category: Audio/Video

Document Type: Manual

Language: EN

Available Languages: EN , ES

Uploaded: Nov. 21, 2025, 6:26 p.m.

Warranty Information

No warranty information is explicitly stated, but service is recommended to be performed by authorized YAMAHA retailers.

TO SERVICE PERSONNEL

1. Critical Components Information
Components having special characteristics are marked ▲ and must be replaced with parts having specifications equal to those originally installed.

2. Leakage Current Measurement (For 120V Models Only)
When service has been completed, it is imperative to verify that all exposed conductive surfaces are properly insulated from supply circuits.
• Meter impedance should be equivalent to 1500 ohm shunted by 0.15µF.
• Leakage current must not exceed 0.5mA.
• Be sure to test for leakage with the AC plug in both polarities.

WARNING: CHEMICAL CONTENT NOTICE!
The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly other entities) to cause cancer and/or birth defects or other reproductive harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHATSOEVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/flux vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food.

WARNING: Laser Safety
This product contains a laser beam component. This component may emit invisible, as well as visible radiation, which may cause eye damage. To protect your eyes and skin from laser radiation, the following precautions must be used during servicing of the unit.
1) When testing and/or repairing any component within the product, keep your eyes and skin more than 30 cm away from the laser pick-up unit at all times. Do not stare at the laser beam at any time.
2) Do not attempt to readjust, disassemble or repair the laser pick-up, unless noted elsewhere in this manual.
3) CAUTION : Use of controls, adjustments or performance of procedures other than those specified herein may may result in hazardous radiation exposure.

Laser Emitting conditions:
1) When the Top Cover is removed, and the STANDBY/ON SW is turned to the "ON" position, the laser component will emit a beam for several seconds to detect if a disc is present. During this time (5-10 sec.) the laser may radiate through the lens of the laser pick-up unit. Do not attempt any servicing during this period!
If no disc is detected, the laser will stop emitting the beam. When a disc is loaded, you will not be exposed to any laser emissions.

Troubleshooting and error codes

Problem Possible Cause Solution
No power Power cord connection Check cable
No power Power supply unit Replace Power Supply Unit if Mono Board is not shorted, otherwise find out first where the short is.
No power DV33 and V25 voltages Check LD1117 (Ref 7601) and 1N4002 (Ref 6604) and peripheral circuit.
No display LOGO not displayed Check oscillation circuit.
No display Main Clock not normal Check reset circuit.
No display Reset signal not normal Check peripheral circuit of FLASH (Ref 7611)
No display Signal on FLASH not normal Check peripheral circuit of SDRAM (Ref 7609)
No display Signal on SDRAM not normal Check peripheral circuit of TV Encoder
No display Input signal of TV encoder not normal Check peripheral circuit of TV Encoder
No display Output signal of TV encoder not normal Check the circuit of video filter, amplifying and cables with TV
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