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SL
- 1210 M 5
GE /
SL
-
1210
M 5
GEB /
SL
- 1210 M 5
GGN
/ SL
-
1210 M 5 GPP
4 Safety Precaution
(
This
"
Safety Precaution
"
is applied only in U
.
S
.
A
.
)
1
.
Before servicing ,
unplug th
è
power cord
to prevent
an electric shock .
2
.
When replacing
parts , use only manufacturer
'
s
recommended
components for safety
.
3
.
Check th
è
condition of th
è
power cord
.
Replace if
wear or damage is
evident
.
4
.
After servicing
,
be sure
to restore
th
è
lead dress
, insulation barriers ,
insulation papers
,
shields
,
etc
.
5
.
Before returning th
è
serviced equipment
to
th
è
customer
, be sure
to make th
è
following
insulation resistance
test to prevent
th
è
customer from being exposed
to
a shock hazard
.
Insulation Resistance Test
1
.
Unplug th
è
power cord and short th
è
two
prongs of
th
è
plug with a jumper wire
.
2
.
Turn on th
è
power switch
.
3
.
Measure
th
è
resistance value with ohmmeter between
th
è
jumper AC plug and each exposed metal cabinet
part
,
such
as screw
heads
,
control shafts
,
handle brackets , etc
.
Equipment with antenna terminals should read between 3 M
£ 2
and 5.2
M
& to
all
exposed parts
.
( Fig
.
A ) Equipment without antenna
terminals should read approximately infinity
to all exposed parts
.
( Fig
.
B )
*
Note
:
Some exposed
parts
may
be isolated
from th
è
chassis by design .
These
will
read infinity
.
Antenna
terminal
/
2
o
Exposed
metal
-
Zt
part
Ohmmeter
Resistance
= 3 MQ
-
5.2
MQ
( Fig
.
A )
*
9
Exposed
metal
-
part
Ohmmeter
Resistance
=
Approx
.
oo
( Fig
.
B )
4
.
If th
è
measurement
is outside th
è
specified limits , there
is a possibility
of a shock hazard
.
The equipment should be
repaired
and rechecked before it is returned
to th
è
customer
.
5
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