Philips BDL4785SL/00, Руководство по обслуживанию

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BDL4 7 85 S L LCD 141
Saf ety Test Require m ents
All units th a t a re returned f or service or rep a ir m ust
p a ss the ori g in a l ma nu fa ctures s af ety tests. Saf ety
testin g requires both Hipot a nd Ground Continuity
testin g .
HI-POT TE S T IN S TRUCTION
1.Applic a tion require m ents
1.1 All ma ins oper a ted products m ust p a ss the Hi-Pot
test a s described in this instruction.
1. 2 This test m ust be per f or m ed aga in af ter the
covers h a ve been re f itted f ollowin g the rep a ir ,
inspection or m odi f ic a tion o f the product.
2 . Test m ethod
2 .1 Connectin g conditions
2 .1.1 The test speci f ied m ust be a pplied between the
p a r a llel bl a de plu g o f the ma in scord a nd a ll
a ccessible m et a l p a rts o f the product.
2 .1. 2 Be f ore c a rryin g out the test, reli a ble conductive
connections m ust be ensured a nd there af ter be
ma int a ined throu g hout the test period.
2 .1.3 The ma ins switch(es) m ust be in the "ON"
position.
2 . 2 Test Require m ents
All products should be HiPot a nd Ground Continuity
tested a s f ollows:
Condition
Hi-Pot Test f or
products where
the
ma ins input
is 22 0V AC
Hi-Pot Test f or
products where
the
ma ins input
is 110V AC
Ground
Continuity
Test
require
m ent
Test
volt
ag e
2 8 2 0VDC
( 2 000VAC)
1 7 00VDC
(1 2 00VAC)
Test ti m e 3 seconds 1 seconds
Trip
current
(Tester)
S et a t 100uA f or
M a x li m it;
S et a t 0.1uA f or
Min li m it.
5 m A
R am p
ti m e
(Tester)
S et a t 2 seconds
ʳ
Test current:
2 5A, AC
Test ti m e: 3
seconds
Resist
a nce
required:
<=0.09+Roh
m ,
R is the
resist
a nce o f
the ma ins
cord.
91
22 0CW9
LCD
2 . 2 .1 The m ini m u m test dur a tion f or Qu a lity Control
Inspector m ust be 1 m inute.
2 . 2 . 2 The test volt ag e m ust be ma int a ined within the
speci f ied volt ag e + 5%.
2 . 2 .3 There m ust be no bre a kdown durin g the test.
2 . 2 .4 The g roundin g bl a de or pin o f ma ins plu g m ust
be conducted with a ccessible m et a l p a rts.
3. Equip m ents a nd Connection
3.1. Equip m ents
For ex am ple :
- Zentech 903 2 PROGRAMMABLE AUT O S AFETY
TE S TER
3. 2 . Connection
* Turn on the power switch o f m onitor be f ore Hipot
a nd Ground Continuity testin g .
4. Recordin g
Hipot a nd Ground Continuity testin g records h a ve to
be kept f or a period o f 10 ye a rs.