sEcTloN
1
SERVICING
NOTES
oSAFETY
CHECK.OUT
After correcting the original service problem,
perfolm the following safety check before releasing
the setto the customer:
Check the antennâ terminals, metal trim, "metallized"
knobs, screws,and all other exposedmetal parts for
AC leakage. Check leakageasdescribed below'
LEAKAGE TEST
The AC leakage
from any exposedmetal part to
earth ground and from all exposed
metal parts to any
exposed metal part having a return to chassis,
must
not exceed 0.5
mA (500 rnicroampers). Leakage
current can be measured by any one of three
methods.
l. A commercial leakage tester, such as the
Simpson 229 or RCA WT-540A. Follow the
manufacturers' instructions to use theseinstru-
ments.
2- A ba
ttery-operated AC milliammeter. The Data
Precision 245 digital multimeter is suitable for
this
job.
3. Measuring
the voltage drop acrossa resistorby
means of a VOM or battery-operated AC volt-
meter. The "limit" indication is 0.75
V, so
analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa
SH-63Trd are examplesof a passive
VOM that
is suitâble. Nearly all battery operated digital
multimeters that have a 2V AC range are
suitable. (See
Fig.A)
To Exposed Metal
Parts on Set
O.r
5
pF
Fig.A. Using
anAC voltmeter to checkAC leakage'
o
US model
: AC:
Canadian model:
AEP model
: AC:
UK model
: AC:
E model
: AC:
12OY6QHz27W
AC: 120V
60Hz
37W
22OY-5OHz 25W
240V-5OHz 27W
11O,/12O,/
22O,/24OV
-5O,r 6OHz20w
CAUTION
Use
of controls
or adjustments
or performance
of proceduresother than those
specified
herein
mav result
in hazardous
radiation
exposure'
Model ldentlflcatlon
MODEL
NO. CFD-D73
CD RADIO
CASSETTE-CORDER
DC: 12V FLASHLIGHT
BATTERY
SIZE
D R2O
X8 OR EOUIVALENT
DC
: 4.5V FLASHLIGHT
BATTERY
(COMPUTER,,,CLOCK)
SIZE
AA R6 X3 OR EOUIVALENT
SECTION
