Precaution Of Laser Diode; Safety Precaution; Insulation Resistance - Onkyo DX-C201 Service Manual

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DX-C101
PRECAUTION OF LASER DIODE
CAUTION:
This unit utilizes a class 1 laser.
Invisible laser radiation is emitted from the optical pick up lens
when the unit is turned on:
. Do not look directly into the pick up fens.
. Do not use optical instruments to look at the pick up lens.
Do not adjust the preset variable resistor on the optical pick up.
Do not disassemble the optical pick up unit.
If the optical pick up is replaced, use the manufactures specified replacement pick up only.
Use of control
or adjustments or performance of procedures other than those specified herin
may result in hazardous radiation exposure.
DAARWN
=
SAFETY
PRECAUTION
(this "safety precaution" is applied only in U.S.A.)
. Before servicing, unplug the power cord to prevent an electric shock.
When replacing parts, use only manufacturer's recommended components for safety.
Check the condition of the power cord.
Replace if wear or damage is evident.
. After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc.
. Before
returning the serviced
equipment
to the customer,
be sure to make
the following
insulation
resistance test to
prevent the customer from being exposed to a shock hazard.
e
INSULATION
RESISTANCE
TEST
1. Unplug the power cord and short the two prongs of the plug with a jumper wire.
2. Turn on the power switch.
3. Measure
the resistance value with ohmmeter between the jumpered AC plug and each exposed metal cabinet part.
TaRWN=
Exposed
metal
part
Ohmmeter
Resistance = Approx
oo
4. If the measurement
is outside the specified
limits, there is a possibility of a shock hazard.
The equipment should be
repaired and rechecked before it is returned to the customer.

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