Philips 15MF605T/17, Service Manual

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Magnavox LCD TV 92
All u n its th a t a re retur n ed f o r ser v ice o r rep a ir must p a ss the
o
ri
g
i
na
l m
an
uf
a
ctures s
a
fety tests. S
a
fety testi
ng
requires b
o
th
an d testi ng .
Hipot Ground Continuity
HI-POT TEST INSTRUCTION
1.Application requirements
2.
1.1 All m
a
i
n
s
o
per
a
ted pr
o
ducts must p
a
ss the Hi-P
o
t test
a
s
described i n this i n structi on .
1.
2 T
his test must be perf
o
rmed
aga
i
n a
fter the c
ov
ers h
av
e
bee
n
refitted f
o
ll
o
wi
ng
the rep
a
ir, i
n
specti
on o
r m
o
dific
a
ti
on
o f the pr o duct.
2
.1
Conn
ecti
ng
c
on
diti
on
s
2 .1.1 T he test specified must be a pplied betwee n the p a r a llel-
bl
a
de plu
g o
f the m
a
i
n
sc
o
rd
an
d
a
ll
a
ccessible met
a
l
p
a
rts
o
f the pr
o
duct.
2 .1. 2 Bef o re c a rryi ng o ut the test, reli a ble c on ducti v e
c
onn
ecti
on
s must be e
n
sured
an
d there
a
fter be
m
a
i
n
t
a
i
n
ed thr
o
u
g
h
o
ut the test peri
o
d.
2 .1.3 T he m a i n s switch(es) must be i n the "ON" p o siti on .
2
.
2 T
est Requireme
n
ts
All pr o ducts sh o uld be HiP o t an d Gr o u n d Con ti n uity tested a s
f o ll o ws:
T
est
2
8
2
0
VDC
1700
VDC T
est curre
n
t:
vo lt ag e ( 2 000 V A C ) (1 2 00 V A C ) 2 5A,A C
T est time:
T
est time 3 sec
on
ds 1 sec
on
d 3 sec
on
ds(mi
n
.)
(mi n .) Resist an ce
required:
T
rip set
a
t 100 uA 5 mA <=0.0
9
+R
o
hm,
curre n t f o r Max . R is the
( T ester) limit a ti on ; set resist an ce o f
a
t 0.1 uA f
o
r the m
a
i
n
s c
o
rd.
M
i
n
.
L
imit
a
ti
on
R a mp set a t 2
time sec
on
ds
(
T
ester)
T est meth o d
Con diti on HiP o t T est f o r HiP o t T est f o r Gr o u n d Con ti n uity
pr o ducts where pr o ducts where T est requireme n t
the m a i n s i n put the m a i n s i n put is
r ang e is Full 110 V A C (USA
r ang e( o r 22 0 V type)
A C )
2
.
2
.1
T
he mi
n
imum test dur
a
ti
on
f
o
r Qu
a
lity
Con
tr
o
l I
n
spect
o
r
must be 1 mi
n
ute.
2 . 2 . 2 T he test vo lt ag e must be m a i n t a i n ed withi n the specified
vo
lt
ag
e + 5%.
2 . 2 .3 T here must be no bre a kd o w n duri ng the test.
2 . 2 .4 T he g r o u n di ng bl a de o r pi n o f m a i n s plu g must be
c on ducted with a ccessible met a l p a rts.
3.
Equipme
n
ts
an
d
Conn
ecti
on
3.1. Equipme n ts
F
o
r e
xa
mple :
-
C
he
n
Hw
a 9
03
2
PROGRA
MM
AB
L
E AU
T
O SAFE
T
Y
T
ES
T
ER
-
C
he
n
Hw
a
510B
D
i
g
it
a
l Gr
o
u
n
di
ng Con
ti
n
uity
T
ester
-
C
he
n
Hw
a 9
01 (A
C
Hi-p
o
t test),
9
0
2
(A
C
,
DC
Hi-p
o
t test)
Withst
an
di
ng T
ester
3.
2
.
Conn
ecti
on
4.
Recording
Hip
o
t
an
d Gr
o
u
n
d
Con
ti
n
uity testi
ng
rec
o
rds h
av
e t
o
be kept
f o r a peri o d o f 10 ye a rs.
* T ur n on the p o wer switch o f m on it o r bef o re Hip o t an d
Gr
o
u
n
d
Con
ti
n
uity testi
ng
.
Connect the "video cable"
or "grounding screw"
to the CLIP on your tester.
Video cable
(Rear view of monitor)
Connect the power cord
to the monitor.
Grounding screw
Power outlet
(ChenHwa 9032 tester)
C lip
Clip