Inportant Service Notes (For U.k. Only); Wiring Of Primarily Supply Leads (For U.k. Only) - Sharp MD-X60H Service Manual

Precaution to be taken when replacing and servicing the
laser pickup.
The following precautions must be observed during servicing
to protect your eyesvagainst exposure to the laser.
Warning of possible eye damage when repairing:
If the AC power plug is connected when the inner cover of
the unit is removed, the laser will light up during focus
access (about 1 second) (Fig. 3-1).
During this operation, the laser will leak from the opening
between the magnetic head and cartridge holder (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 power plug.
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.
Setting of Withstanding Voltage Tester and set.
Set name
Withstanding Voltage Tester
Test voltage
Set time
Set current (Cutoff current)
Unit
Judgment
OK: The "GOOD" lamp lights.
NG: The "NG" lamp lights and the buzzor sounds.

WIRING OF PRIMARILY SUPPLY LEADS (FOR U.K. ONLY)

Bushing AC Power
Supply Cord
Set value
4,240 VPEAK
3,000 VRMS
6 secs
4 mA
Nylon Band 80mm
92LN-BAND 1318A
Brown
Blue
Core
AC Power
Supply Cord




 
Magnet Head
Spindle Motor
WITHSTANDING
VOLTAGE TESTER
AC
OUT
SHORT-CIRCUT
AC POWER
SUPPLY CORD
Power
Transformer
Figure 3-3
– 3 –
MD-X60H
Magnetic Head
Optical pickup
Figure 3-1
Laser Beam
Cartridge Holder
Mechanism
Chassis
Optical pickup
Figure 3-2
PROBE
UNIT
CONNECT THE PROBE
TO GND OF CHASSIS
SCREW
Screw