Polaroid flm-4234bh User Manual

www.polaroid.com 

19

Before returning this product to the user, always perform the following safety checks: 
 

(4)  Inspect all wiring to be sure no wires are pinched between the chassis or any metal parts. 
(5)  Inspect all protective devices for proper installation, including non-metallic controls, insulation materials, cabinet 

backs, compartment covers, and shields. 

(6)  Verify that no shock hazard exists on any part of the chassis, especially any metal components including cable 

connection points, chassis hardware, or antennas (if equipped). Use the following procedure: 

 

a.  Plug the AC cord directly into a 120 V AC outlet. 
b.  Create a test circuit consisting of a 1.5k ohm, 10 

watt resistor paralleled by a 0.15 µF capacitor. 

c.  Using an AC voltmeter (sensitivity of 5000 ohm per 

volt or higher), measure the voltage drop across 

the test circuit between all exposed metallic parts 
and a known earth ground. Measurement points 

include antenna, metal cabinet parts, screw heads, 

and metal knobs or controls. Measurement points 

can vary slightly even between revisions of the 

same model, so always conduct a thorough review 

of the chassis to locate metal points that a user 
may touch. 

d.  Any voltage reading of 0.375 Vrms AC (0.25 

mArms) or higher indicates a potential shock 

hazard. THIS CONDITION MUST BE 

CORRECTED BEFORE RETURNING THE 
PRODUCT TO THE USER! 

e.  Repeat the above checks with the AC polarity 

reversed. A non-polarized adapter is required to 

reverse the polarity; DO NOT LEAVE THIS 

ADAPTER WITH THE USER! Under normal 

operation the product must use the proper polarity.