Laser Product - Panasonic PV-D4733S-K Service Manual

ground, as shown in figure 1.
3. Use an AC voltmeter, with 1 k
potential across the resistor.
4. Check each exposed metallic part, and measure the voltage at each
point.
5. Reverse the AC plug in the AC outlet and repeat each of the above
measurements.
6. The potential at any point should not exceed 0.75 V RMS. A leakage
current tester (Simpson Model 229 or equivalent) may be used to make
the hot checks. Leakage current must not exceed 1/2 mA. In case a
measurement is outside of thelimits specified, there is a possibility of
a shock hazard, and the equipment should be repaired and rechecked
before it is returned to the customer.

1.1. LASER PRODUCT

CLASS I LASER PRODUCT
- This equipment is certified to comply with DHHS Rules 21 CFR Chapter
1, Subchapter J in effect as of date of manufacture. (Only for U.S.A.)
This equipment is classified as a Class I (Class 1) level LASER Product and there is no hazardous
LASER radiation with the safety protection.
Caution:
Use of controls or adjustments or performance of procedures other
than those specified herein may result in hazardous radiation exposure.
Danger:
The serviceman should not remove the cover of drive unit and should
not service because the drive unit is a non- serviceable parts. Please
check that the labels.
Never touch the internal parts in order to avoid EXPOSURE TO VISIBLE LASER RADIATION.
Unplug the AC power cord to the equipment when opening the top cover.
When the power switch is On, do not place your eyes close to the front panel opening door or the
other openings to look into the interior unit.
LASER Specification
Class I level A LASER Product (Class 1 level A LASER Product)
/V or more sensitivity, to measure the
Figure 1
3