Section 3
Service Overview
3-1.
Precautions when Handling the Hard Disc Drive and DVD Drive
Hard Disc Drive (HDD) and DVD Drive (HVO-550MD only) are installed in this unit.
These are precision parts. Therefore, Data in the HDD, or HDD and DVD drive itself are easily damaged by the causes
such as shock, vibration, static electricity, bad conditions of temperature, humidity and dust.
When repairing this unit, read fully the following cautions, and perform the operation with extra care.
3-1-1.
No Shock or Vibration
When transporting or moving;
• Be sure to turn off the power.
• Pack the unit using the packaging materials specified by the manufacturer.
• Use a proper low-vibration cart.
• Put a cushion on the cart.
• Avoid rough routes, and manage the cart gently.
Tip
Cushion: Polyethylene foam (density: 10 kg/m³, surface intrinsic resistance: 10¹¹ to 10¹² Ω, thickness: 20 mm) or
equivalent.
When placing on a floor or a table;
• Put the unit with the specified rubber feet on it gently.
• Do not place the unit near vibrating equipment.
For the unit, HDD and DVD drive;
• Do not drop the tool on the unit or do not hit the unit by tool.
Take extra care;
• Do not give vibration or shock to the unit while the power is turned on, or within about 30 seconds after turning
off the power.
3-1-2.
Trolley or Rack Mounting
• Be careful not to give shock to the unit with HDD or DVD drive in the rack.
• If other HDD or DVD drive-equipped unit is in the rack, be sure to turn off the power of the unit.
3-1-3.
No Static Electricity
• Keep static-producing items such as plastics away from the working area.
• When you touch an HDD or DVD drive, be sure to wear a grounded earth-band to protect against static electricity.
3-1-4.
Temperature, Humidity and Dust
• Temperature and humidity of storage and operating condition must be kept within the correct specified range.
• To prevent the adverse effects, do not use or storage in a dusty area.
3-1-5.
When an Error Appears in an HDD or DVD Drive
• Treat the HDD or DVD drive conform to the above cautions, even when an error appeared.
HVO-500MD/HVO-550MD
3-1
