Read Sharp GX-M10H (serv.man3) Service Manual online
GX-M10H
1 – 3
CHAPTER 1. GENERAL DESCRIPTION
[1] Safety Precaution For Service Manual
This product is classified as a CLASS 1 LASER PRODUCT.
Precaution to be taken when replacing and servicing the
Laser Pickup.
Laser Pickup.
The AEL (Accessible Emission Level) of Laser Power Output is
less than Class 1 but the laser component is capable of emitting
radiation exceeding the limit for Class 1. Therefore it is important
that the following precautions must be observed during servicing
to protect your eyes against exposure to the Laser beam.
less than Class 1 but the laser component is capable of emitting
radiation exceeding the limit for Class 1. Therefore it is important
that 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
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
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.
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.
procedures other than those specified herein may result in
hazardous radiation exposure.
WARNING
This unit contains no user serviceable parts. Never remove covers unless qualified to do so.
This unit contains dangerous voltages, always remove mains plug from the socket before any service operation and when
not in use for a long period.
This unit contains dangerous voltages, always remove mains plug from the socket before any service operation and when
not in use for a long period.
[2] Important Service Notes (for U.K. only)
Before returning the unit to the customer after completion of a repair or adjustment it is necessary for the following withstand
voltage test to be applied to ensure the unit is safe for the customer to use.
voltage test to be applied to ensure the unit is safe for the customer to use.
Setting of Withstanding Voltage Tester and set.
Set name
set value
Withstanding Voltage Tester
Test voltage
Test voltage
4,240 VPEAK
3,000 VRMS
3,000 VRMS
Set time
6 secs
Set current (Cutoff current)
4 mA
Unit
Judgment
OK: The “GOOD” lamp lights.
NG: The “NG” lamp lights and the buzzer sounds.
Judgment
OK: The “GOOD” lamp lights.
NG: The “NG” lamp lights and the buzzer sounds.
PROBE
AC
OUT
UNIT
SHORT-CIRCUIT
AC POWER
SUPPLY CORD
AC POWER
SUPPLY CORD
CONNECT THE PROBE
TO SHELL OF VIDEO JACK
WITHSTANDING
VOLTAGE TESTER
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