Sharp MD-MT866H Service Manual

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MD-MT866H/MD-MT866W
Precaution to be taken when replacing and servicing the laser pickup.
The following precautions must be observed during servicing to protect your eyes against exposure to the laser.
Warning of possible eye damage when repairing:
If the AC adaptor or batteries are connected when the top housing (disc cover) of the unit is removed, and the PLAY key is
pressed, the laser will light up during focus access (2-3 seconds). (Fig. 3-1) During the operation, the laser will leak from the
opening between the magnetic head and the mechanical chassis (Fig. 3-2). In order to protect your eyes, you must not look
at the laser during repair. Before repairing be sure to disconnect the AC adaptor and remove the batteries.
MD-MT866W(S)
MD-MT866H(S) Except for U.K.
Precaution to be taken when replacing and servicing the
Laser Pickup.
The AEL (Accessible Emission Level) of Laser Power Output
for this model is specified to be lower than Class I Require-
ments. However, the following precautions must be observed
during servicing to protect your eyes against exposure to the
laser beam.
(1) When the cabinet has been removed, the power is
turned on without a compact disc, and the Pickup is on
a position outer than the lead-in position, the Laser will
light for several seconds to detect a disc. Do not look
into the Pickup Lens.
(2) The Laser Power Output of the Pickup inside the unit
and replacement service parts have already been
adjusted prior to shipping.
(3) No adjustment to the Laser Power should be attempted
when replacing or servicing the Pickup.
(4) Under no circumstances look directly into the Pickup
Lens at any time.
(5) CAUTION - Use of controls or adjustments, or
performance of procedures other than those specified
herein may result in hazardous radiation exposure.
SAFETY PRECAUTION FOR SERVICE MANUAL
Laser Diode Properties
● Material: GaAIAs
● Wavelength: 785 nm
● Pulse time:
Read mode; 0.8 mW Continuous
Write mode; max. 10 mW 0.5S
min. cycle 1.5S
Repetition
LASER KLASSE 1
LUOKAN 1 LASERLAITE
KLASS 1 LASERAPPARA
MD-MT866H(S) Except for U.K.
MD-MT866W(S)
MD-MT866H(S) for U.K.

Sharp MD-MT866H Specifications

General

Brand	Sharp
Model	MD-MT866H
Category	Minidisc Recorder
Language	English