Sony SMP-N100, Руководство по обслуживанию

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IFcon Section Flowchart (1/2)
IF
co
n
bl
ock
p
ow
er
s
up
pl
y c
he
ck
U
N
SW
3.
3V
vo
ltag
e (
+3
.3
V)
Is
3
.3
V
ou
tpu
t f
ro
m
IC314
p
in4?
N
o
Inpu
t vo
ltage
Is
+1
2
V
inpu
t t
o
IC314
p
in5?
N
o
Is
th
e
fu
se
(P
S301
) b
lo
wn?
N
o
To
Po
wer
Sup
pl
y
(S
ys
te
m
) f
lo
wc
ha
rt
Y
es
Y
es
Yes
Rep
lace P
S301
If
sy
m
pt
om
s do no
t i
m
prove
, c
he
ck
for a
shor
t on
the
c
irc
ui
t boa
rd
R
EG
c
on
tro
l vo
ltage
Is
+1
2
V
inpu
t t
o
IC314
p
in1?
N
o
Re
pl
ac
e
IC314
Yes
Re
pl
ace R388
If sy
m
pt
om
s do no
t i
m
prove
, re
pl
ac
e
IC314
P_
FA
IL
d
etect
io
n
op
er
at
io
n c
he
ck
Chec
k
the
P_
FA
IL vo
ltage
N
o
N
o
Is
+
3.
3V
ou
tpu
t f
ro
m
IC150
4 p
in1
?
Y
es
Chec
k o
f ke
y vo
ltag
e
fro
m
m
ai
n un
it
Key
Tab
le
(*
) w
hen ke
y
is pre
ssed or no
t pr
ess
ed
N
o
N
o
PO
W
ER:
C
N
150
4 p
in5(
JL154
1)
KE
Y0
Y
es
Re
m
ot
e c
on
tro
l o
pe
rat
io
n
ch
eck
Chec
k
the
wave
fo
rm
w
he
n
the
re
m
ot
e
con
tro
l bu
tto
n
is no
t press
ed
N
o
Che
ck
w
he
the
r t
he
FF
C
is d
isconnec
te
d
fro
m
C
N
15
04
. (
O
the
r t
ha
n
the
PO
W
ER key)
N
o
Chec
k o
f t
he 3
.3
V
vo
ltage
C
N
150
4 p
in
6
an
d
IC150
3 p
in24
Is
ther
e a pro
bl
em
w
ith
th
e
R
B150
3
m
oun
ting con
di
tion?
Y
es
Chec
k o
f t
he
wave
fo
rm
w
he
n
the ke
y
is
pre
ss
ed
In co
m
pa
riso
n
wi
th a no
rm
al
w
ave
fo
rm
, i
s
th
e
wave
fo
rm
of
th
e vo
ltag
e ou
tpu
t ?
N
o
Is
the
re
m
ot
e
con
tro
l t
ha
t i
s use
d
in
the
inspec
tion broke
n?
N
o
Doe
s
re
pl
ace
m
en
t o
f t
he
FL-200
boa
rd
resu
lt
in improvement?
N
o
Y
es
Che
ck
w
he
the
r t
he
FF
C
is d
is
connec
te
d
fro
m
C
N
15
04
. (
O
the
r t
ha
n
the
PO
W
ER ke
y)
Yes
Re
pl
ace
R156
4
an
d
chec
k
for
+3
.3
V a
t
I
C15
04 p
in1
If sy
m
pt
om
s
do
no
t i
m
pro
ve
, re
pl
ac
e
IC150
4
(P
_F
AI
L d
et
ec
tio
n)
Is
the harne
ss
fro
m
C
N
15
04
d
is
connec
ted
?
(P
O
W
ER ke
y)
In
pu
t
(K
EY
0)
2.
90
-
0.
00
-
Ke
y_
O
FF
『
POWER
』
A
B
To
boa
rd
Fl
ow
9-4
SMP-N100
M
ai
n
un
it
ke
y
ch
ec
k
* K
ey
T
ab
le