For Service Technicians - Panasonic KV-S2065L Service Manual

barriers, insulation papers, shields, etc.
5. Before returning the serviced equipment to the customer, perform
the following electrical tests to prevent shock hazard.
1.2. Electrical Tests
1. Unplug the power cord and check for continuity between the earth
ground connection on the plug and the Interface Board Cover.
There should be zero ohm resistance
2. With the unit unplugged, short the AC live-neutral of the plug with
a jumper wire.
3. Turn ON the power switch.
4. Measure the resistance value with an ohmmeter between the
jumpered AC plug and an exposed metal cabinet part, such as
screwheads, etc. (Refer to Fig.2)
Note:
Some exposed parts may be isolated from the chassis by design.
They read infinity.
5. If the measurement is less than 1M
shock may exit.
Note:
This hazardous condition must be corrected before the unit is
returned to the end user.

1.3. For Service Technicians

ICs and LSIs are vulnerable to static electricity. When repairing, the following precautions will
help to prevent recurring malfunctions.
1. Cover the plastic parts with aluminum foil.
2. Ground the soldering irons.
, a possibility for electric
2