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Bang &Olufsen
ISOLATIONSTEST
Nar et apparat har veret skilt ad, skal det isolations-
testes. Testen' skal udfares, efter at apparatet er blevet
samlet igen og er klar ti! levering til kunden.
Isolationstest for Beogram CD5500
Isolationstesten udferes som falger:
Kortslut de to stikben i netstikket og tilslut en af iso-
lationstestapparatets terminaler. Isolationstestappara-
tets anden terminal filsluttes stelbenet i en af phono-
basningerne.
NB!
For at undga at edelegge apparatet er det meget vig-
tigt, at begge isolationstestapparatets terminaler er i
virkelig god mekanisk kontakt.
SA drejes isolationstestapparatets spaendingsregulator
langsomt, indtil man opnar en spzending pa 1,5kV.
Hold den der i 1 sekund, og skru sa langsomt ned for
speendingen igen.
Derefter flyttes terminalen fra stelbenet til en skrue i
bunden af apparatet.
Sa drejes isolationstestapparatets spandingsregulator
igen langsomt, indtil man opnar en spending pa
1,5kV. Hold den der i 1 sekund, og skru sa langsomt
ned for speendingen igen.
Der ma pa intet tidspunkt i testforlobet forekomme
oversiag.
8-1
INSULATION TEST
Each set must be insulation tested after dismaniling.
The test is to be performed when the set has been re-
assembled and is ready for delivery to the customer. ;
Insulation test for Beogram CD5500
Make the insulation test as follows:
Short-circuit the two plug pins of the mains plug and
connect one of the terminals of the insulation tester.
Connect the other terminal of the insulation tester to
the chassis pin of one of the phono bushings.
NB!
To avoid ruining the set, it is essential that both insu-
lator test terminals are in really good mechanical con-
tact.
Now slowly turn the voltage contro] of the insulation
tester until a voltage of L5 kV is obtained. Hold it
there for 1 second, and slowly turn down the voltage
again.
Now move the terminal from the chassis pin to a
screw in the bottom of the set.
Then again slowly turn the voltage control of the
insulation tester until a voltage of L5 kV is obtained.
Hold it there for 1 second, and slowly turn down the
voltage again.
At no point during the testing procedure any flash-
overs are permissible,
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