420WN6 LCD TV
Go to cover page
78
Repair Tips
3.
Lea
d-f
ree pr
oduct
i
d
e
nt
i
f
i
c
a
t
i
on
You c
a
n
i
d
e
nt
i
fy l
ea
d-f
ree pr
oduct by Ph
i
l
ips
-l
ea
d-f
ree
logo on P
C
B.
4
.
Lea
d-f
ree pr
oduct
repair i
n
s
t
r
uct
i
on
4
.1 U
se
only l
ea
d-f
ree
Sold
er
Alloy
0622
1
4
9
00
1
06
(1.
2
mm SA
C
3
0
5) o
r 0622
1
4
9
00
1
08
(1.
0
mm SA
C
3
0
5).
Re
m
ar
k: Fo
r
l
ea
d f
ree s
old
eri
ng m
a
t
eria
l,
p
l
ease
v
isi
t
www.
a
l
p
h
a
m
e
t
a
l
s
.com
w
e
b
si
t
e
fo
r
d
e
t
ai
l
s
.
T
h
is is re
comm
e
nd
e
d by Ph
i
l
ips
.
4
.
2
U
se
only
a
d
e
qu
a
t
e s
old
er
tool
s app
l
i
c
a
bl
e
fo
r
l
ea
d-f
ree s
old
eri
ng-t
i
n.
T
h
e s
old
er
tool mu
s
t b
e a
bl
e
to
rea
ch
a
t l
eas
t
a
s
old
er
-t
e
m
pera
tu
re
of
400
, to
s
t
a
b
i
l
i
z
e
th
e a
dju
s
t
e
d t
e
m
pera
tu
re a
t th
e s
old
er
-t
ip a
nd to
e
xch
a
ng
e s
old
er
-t
ips
fo
r
d
i
ff
ere
nt
app
l
i
c
a
t
i
on
s
.
Sm
a
ll P
assi
v
es
/Act
i
v
es
to b
e re
mov
e
d w
i
th th
er
m
a
l tw
ee
z
ers
Autom
a
t
e
d
s
y
s
t
e
m fo
r
I
C a
nd BGA
repair
(M
i
c
r
o
s
co
pe
,
Ca
m
era
, B
ea
m
sp
l
i
t o
p
t
i
c
s
,
C
om
p
ut
er
, P
r
og
ra
mm
er
, H
ea
t
cont
r
oll
ers
,
Va
cuum
s
y
s
t
e
m,
Laser p
o
i
nt
er
)
Sold
er
H
a
nd-
T
ool (Adju
s
t
a
bl
e i
n t
e
m
pera
tu
re
h
ei
ght,
Te
m
pera
tu
re s
h
a
ll b
e
h
e
ld con
s
t
a
nt,
Fl
e
x
i
bl
e
t
ips
)
4
.3 Adju
s
t you
r s
old
er
tool
s
o th
a
t
a
t
e
m
pera
tu
re ar
ound 3
60
-3
80
is rea
ch
e
d
a
nd
s
t
a
b
i
l
i
z
e
d
a
t th
e s
old
er
jo
i
nt.
H
ea
t
i
ng-t
i
m
e
of th
e s
old
er
-jo
i
nt
s
hould not
e
xc
ee
d ~
4 se
c. Avo
i
d t
e
m
pera
tu
res a
bov
e 400
oth
er
w
ise
w
ear
-out of t
ips
w
i
ll
rise
d
ras
t
i
c
a
lly
a
nd flux-flu
i
d w
i
ll b
e
d
es
t
r
oy
e
d.
C
o
rr
o
si
on of
T
ool-S
pi
k
es
c
a
n b
e a
vo
i
d
e
d wh
e
n u
si
ng SA
C
3
0
5
a
nd
a
t
e
m
pera
tu
re
of l
ess
th
a
n
400
.
4
.
4
M
i
x of l
ea
d-f
ree s
old
er
-t
i
n/
par
t
s
w
i
th l
ea
d
e
d
s
old
eri
ng-t
i
n/
par
t
s is p
o
ssi
bl
e
but not
re
comm
e
nd
e
d. If not to
a
vo
i
d cl
ea
n
c
are
fully th
e s
old
er
-jo
i
nt f
r
om old t
i
n
a
nd
re
-
s
old
er
w
i
th n
e
w t
i
n.
4
.5 U
se
only o
ri
g
i
n
a
l
spare
-
par
t
s
l
is
t
e
d
i
n th
e
S
er
v
i
c
e
-M
a
nu
a
l
s
. St
a
nd
ar
d-m
a
t
eria
l
(con
s
um
a
bl
es
) c
a
n
a
l
s
o b
e p
u
r
ch
ase
d
a
t
e
xt
er
n
a
l com
pa
n
ies
.
4
.
6
S
pe
c
ia
l
i
nfo
r
m
a
t
i
on fo
r
l
ea
d-f
ree
BGA-I
Cs
: th
is
I
Cs
w
i
ll b
e
d
e
l
i
v
ere
d
i
n
s
o-c
a
ll
e
d
d
r
y-
pa
ck
a
g
i
ng
to
pr
ot
e
ct th
e
I
C a
g
ai
n
s
t mo
is
tu
re a
nd w
i
th l
ea
d-f
ree
logo on
i
t.
T
h
is
pa
ck
a
g
i
ng m
a
y only b
e
o
pe
n
e
d
s
ho
r
tly b
e
fo
re i
t
is
u
se
d (
s
old
ere
d). Oth
er
w
ise
th
e
body of th
e
I
C
g
e
t
s
w
e
t
i
n
si
d
e a
nd du
ri
ng th
e
h
ea
t
i
ng t
i
m
e
th
e s
t
r
uctu
re
of th
e
I
C
w
i
ll b
e
d
es
t
r
oy
e
d du
e
to h
i
gh (
s
t
ea
m-)
press
u
re
. If th
e pa
ck
a
g
i
ng w
as
o
pe
n
e
d b
e
fo
re
u
sa
g
e
th
e
I
C
h
as
to b
e
h
ea
t
e
d u
p
fo
r s
om
e
hou
rs
(
ar
ound 9
0
) fo
r
d
r
y
i
ng (
Ta
k
e
a
tt
e
nt
i
on fo
r
ES
D
-
pr
ot
e
ct
i
on!)
5.
Re
wo
r
k on BGA (B
a
ll G
ri
d A
rra
y) I
Cs
G
e
n
era
l
Although (
L
F)BGA
asse
mbly y
ie
ld
s are
v
er
y h
i
gh, th
ere
m
a
y
s
t
i
ll b
e a re
qu
ire
m
e
nt fo
r
com
p
on
e
nt
re
wo
r
k. By
re
wo
r
k, w
e
m
ea
n th
e pr
oc
ess
of
re
mov
i
ng th
e
com
p
on
e
nt f
r
om th
e
P
W
B
a
nd
rep
l
a
c
i
ng
i
t w
i
th
a
n
e
w com
p
on
e
nt. If
a
n (
L
F)BGA
is
re
mov
e
d f
r
om
a
P
W
B, th
e s
old
er
b
a
ll
s
of th
e
com
p
on
e
nt
are
d
e
fo
r
m
e
d d
ras
t
i
c
a
lly
s
o th
e re
mov
e
d (
L
F)BGA h
as
to b
e
d
is
c
ar
d
e
d.
De
v
i
c
e Re
mov
a
l
A
s is
th
e
c
ase
w
i
th
a
ny com
p
on
e
nt th
a
t,
i
t
is esse
nt
ia
l wh
e
n
re
mov
i
ng
a
n (
L
F)BGA, th
e
bo
ar
d, t
ra
ck
s
,
s
old
er
l
a
nd
s
, o
r
s
u
rr
ound
i
ng com
p
on
e
nt
s are
not d
a
m
a
g
e
d.
T
o
re
mov
e a
n (
L
F)BGA, th
e
bo
ar
d mu
s
t b
e
un
i
fo
r
mly h
ea
t
e
d to
a
t
e
m
pera
tu
re
clo
se
to th
e re
flow
s
old
eri
ng t
e
m
pera
tu
re
. A un
i
fo
r
m t
e
m
pera
tu
re re
duc
es
th
e
ch
a
nc
e
of w
arpi
ng th
e
P
W
B.
T
o do th
is
, w
e re
comm
e
nd th
a
t th
e
bo
ar
d
is
h
ea
t
e
d unt
i
l
i
t
is
c
er
t
ai
n th
a
t
a
ll th
e
jo
i
nt
s are
molt
e
n.
T
h
e
n c
are
fully
p
ull th
e
com
p
on
e
nt off th
e
bo
ar
d w
i
th
a
v
a
cuum nozzl
e
. Fo
r
th
e appr
o
pria
t
e
t
e
m
pera
tu
re pr
of
i
l
es
,
see
th
e
I
C
d
a
t
a s
h
ee
t.
A
rea
P
repara
t
i
on
W
h
e
n th
e
com
p
on
e
nt h
as
b
ee
n
re
mov
e
d, th
e
v
a
c
a
nt I
C area
mu
s
t b
e
cl
ea
n
e
d b
e
fo
re rep
l
a
c
i
ng th
e
(
L
F)BGA.
Re
mov
i
ng
a
n I
C
oft
e
n l
ea
v
es
v
ar
y
i
ng
a
mount
s
of
s
old
er
on th
e
mount
i
ng l
a
nd
s
.
T
h
is e
xc
essi
v
e s
old
er
c
a
n b
e re
mov
e
d w
i
th
ei
th
er a s
old
er s
uck
er
o
r s
old
er
w
i
ck.
T
h
e re
m
ai
n
i
ng flux c
a
n b
e re
mov
e
d w
i
th
a
b
r
u
s
h
a
nd cl
ea
n
i
ng
a
g
e
nt. Aft
er
th
e
bo
ar
d
is pr
o
per
ly cl
ea
n
e
d
a
nd
i
n
spe
ct
e
d,
app
ly flux on th
e s
old
er
l
a
nd
s a
nd on th
e
conn
e
ct
i
on b
a
ll
s
of th
e
(
L
F)BGA
N
ot
e
:
D
o not
app
ly
s
old
er pas
t
e
,
as
th
is
h
as s
hown to
res
ult
i
n
pr
obl
e
m
s
du
ri
ng
re
-
s
old
eri
ng.
De
v
i
c
e Rep
l
a
c
e
m
e
nt
T
h
e
l
as
t
s
t
ep i
n th
e repair pr
oc
ess is
to
s
old
er
th
e
n
e
w com
p
on
e
nt on th
e
bo
ar
d. Id
ea
lly, th
e
(
L
F)BGA
s
hould b
e
a
l
i
gn
e
d und
er a
m
i
c
r
o
s
co
pe
o
r
m
a
gn
i
fy
i
ng gl
ass
. If th
is is
not
p
o
ssi
bl
e
, t
r
y to
a
l
i
gn th
e
(
L
F)BGA w
i
th
a
ny bo
ar
d m
ar
k
ers
.
T
o
re
flow th
e s
old
er
,
app
ly
a
t
e
m
pera
tu
re pr
of
i
l
e a
cco
r
d
i
ng to th
e
I
C
d
a
t
a s
h
ee
t. So
as
not to d
a
m
a
g
e
n
ei
ghbou
ri
ng
com
p
on
e
nt
s
,
i
t m
a
y b
e
n
e
c
essar
y to
re
duc
e s
om
e
t
e
m
pera
tu
res a
nd t
i
m
es
.
Mo
re
Info
r
m
a
t
i
on
Fo
r
mo
re i
nfo
r
m
a
t
i
on on how to h
a
ndl
e
BGA d
e
v
i
c
es
, v
isi
t th
is
U
RL
:
htt
p
://www.
a
tyou
rser
v
i
c
e
.c
e
.
p
h
i
l
ips
.com
(n
ee
d
s
s
ub
s
c
rip
t
i
on). Aft
er
log
i
n,
se
l
e
ct
M
a
g
a
z
i
n
e
, th
e
n go to
W
o
r
k
s
ho
p
Info
r
m
a
t
i
on . H
ere
you w
i
ll f
i
nd Info
r
m
a
t
i
on on how
.to deal with BGA-ICs.
"
"
"
"
"
"
P
b
Repair
flow ch
ar
t
p
l
ease re
f
er
to 3
20WN6 ser
v
i
c
e
m
a
nu
a
l.
Содержание BDL4221V/00
Страница 39: ...39 420WN6 LCD TV Go to cover page BLOCK DIAGRAM Main Board ...
Страница 40: ...Go to cover page ...
Страница 41: ...41 420WN6 LCD TV Go to cover page SCALER DIAGRAM ...
Страница 42: ...Go to cover page ...
Страница 43: ...43 420WN6 LCD TV Go to cover page SCALER DIAGRAM ...
Страница 44: ...Go to cover page 420WN6 LCD TV 44 SCALER DIAGRAM ...
Страница 45: ...45 420WN6 LCD TV Go to cover page SCALER DIAGRAM ...
Страница 46: ...Go to cover page 420WN6 LCD TV 46 SCALER DIAGRAM ...
Страница 47: ...47 420WN6 LCD TV Go to cover page SCALER DIAGRAM ...
Страница 48: ...Go to cover page 420WN6 LCD TV 48 SCALER DIAGRAM ...
Страница 49: ...49 420WN6 LCD TV Go to cover page SCALER DIAGRAM ...
Страница 50: ...Go to cover page 420WN6 LCD TV 50 SCALER DIAGRAM ...
Страница 51: ...51 420WN6 LCD TV Go to cover page SCALER DIAGRAM ...
Страница 52: ...Go to cover page 420WN6 LCD TV 52 SCALER DIAGRAM ...
Страница 53: ...53 420WN6 LCD TV Go to cover page SCALER DIAGRAM ...
Страница 54: ...Go to cover page ...
Страница 55: ...55 420WN6 LCD TV Go to cover page SCALER DIAGRAM ...
Страница 56: ...Go to cover page 420WN6 LCD TV 56 SCALER BOARD C B A ...
Страница 57: ...57 420WN6 LCD TV Go to cover page SCALER BOARD C B A ...
Страница 58: ...Go to cover page ...
Страница 59: ...59 420WN6 LCD TV Go to cover page POWER BOARD C B A ...
Страница 60: ...Go to cover page ...
Страница 61: ...61 420WN6 LCD TV Go to cover page IR CONTROL DIAGRAM ...
Страница 62: ...Go to cover page 420WN6 LCD TV 62 IR CONTROL BOARD C B A ...
Страница 63: ...63 420WN6 LCD TV DSUB DIAGRAM Go to cover page ...
Страница 64: ...DSUB C B A 64 420WN6 LCD TV Go to cover page ...
Страница 65: ...65 420WN6 LCD TV DSUB C B A Go to cover page ...
Страница 66: ...TUNER DIAGRAM FOR 420WN6QS 93 AND 420WN6QS 97 66 420WN6 LCD TV Go to cover page ...
Страница 67: ...67 420WN6 LCD TV Go to cover page TUNER C B A FOR 420WN6QS 93 AND 420WN6QS 97 ...
Страница 68: ...TUNER C B A FOR 420WN6QS 93 AND 420WN6QS 97 68 420WN6 LCD TV Go to cover page ...
