Goldstar MV1610ST, Service Manual

Page: 13 / 43

7-2
CAUTIONS
• Be sure to check microwave leakage prior to
servicing the oven if the oven is operative prior
to servicing.
• The service personnel should inform the
manufacture importer, or assembler of any
certified oven unit found to have a microwave
emission level in excess of 5 mW/cm
2 and should
repair any unit found to have excessive emission
levels at no cost to the owner and should ascertain
the cause of the excessive leakage. The service
personnel should instruct the owner not to use the
unit until the oven has been brought into compliance.
• If the oven operates with the door open, the
service personnel should:
- Tell the user not to operate the oven.
- Contact the manufacturer and CDRH
(Center for Devices and Radiological Health)
immediately.
NOTE: Address on CDRH
Office of Compliance(HFZ-312)
Center for Devices and Radiological
Healthe 1390, Piccard Drive,
Rockville. MD 20850
• The service personnel should check all surface and
vent openings for microwave leakage.
• Check for microwave leakage after every servicing.
The power density of the microwave radiation
leakage emitted by the microwave oven should not
exceed 4 mW/cm
2 . Always start measuring of an
unknown field to assure safety for operating
personnel from radiation leakage.
EQUIPMENT
• TESTER (VOLTS-DC, AC, Ohmmeter)
• Microwave survey meter
- Holaday HI-1500
HI-1501
- Narda 8100
8200
• 600 cc non conductive material beaker (glass or
plastic), inside diameter: approx. 8.5 cm (3 1 /
2
in.)
• Glass thermometer: 100°C or 212°F (1 deg scale)
MEASURING MICROWAVE ENERGY
LEAKAGE
• Pour 275±15cc of 20±5°C(68±9°F) water in a
beaker which is graduated to 600 cc, and place
the beaker on the center of the turntable.
• Set the energy leakage monitor to 2,450 MHz and
use it following the manufacturer's recommended
test procedure to assure correct result.
• When measuring the leakage, always use the 2-
inch (5cm) spacer supplied with the probe.
• Operate the oven at its maximum output.
• Measure the microwave radiation using and
electromagnetic radiation monitor by holding the
probe perpendicular to the surface being
measured.
Move probe along shaded area.
Probe scanning speed
Less than 2.5 cm/sec. ( 1 in/sec)
MICROWAVE LEAKAGE TEST