Read Sony BDV-EF220 / BDV-EF420 / HBD-EF220 / HBD-EF420 Service Manual online
HBD-EF220/EF420
4
Video Check Flow
C
heck
that the dr
ive
is
oper
ating
nor
mally
.
C
heck t
hat e
ac
h pow
er
s
upply
is
s
uppli
ed.
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
C
heck
that VIDEO
O
U
T
is
outputted
nor
mally.
C
heck
that only the
digital
output
(HDMI) is
af
fe
cted.
C
heck
that the input voltage of
the
fo
llow
ing
pin is
6
V.
MB-148 boar
d
IC
705
pin
5 (
VIN)
C
heck
that the output voltage of
the
fo
llow
ing
pin is
5
V.
MB-148 boar
d
IC
705
pin
4 (
VO
U
T)
Ye
s
C
heck
that the output voltage of
the
fo
llow
ing
pin is
3.3V.
MB-148 board
IC704
pin4
(VOUT)
Check
that there are no
abnormalities
in
CN
701.
Per
for
m other
analys
es
.
C
heck
the s
ettings
on the
menu
sc
reen.
Ref
er
to the
“1. Pow
er
Check
Fl
ow
” on
page
2.
C
heck
that the input voltage
of
the
fo
llow
ing
pin is
3.3V.
MB-148
board
IC705
pin1 (CON
T)
Check
that there are no
abnormalities
in
J6401.
Exchange the
complete MB-148
board.
Check
the solder of
J6401.
Ref
er
to
the
“1.
Pow
er
Check F
low
” on
page
2
to
check
on
p
owe
r c
on
tro
l sig
na
l fo
r P
C
ON
T_3
Ref
er
to
the “2-1. Flow
of
dr
ive s
ection
check”
on
page 7
on
or
iginal
se
rv
ice manual.
Exchange the
IC
705.
Part N
o.
6-705-337-01
Description IC
TK1115
0CS
C
L-G
C
heck
that the input voltage
of
the
fo
llow
ing
pin is
3.3V.
MB-148 board
IC704
pin1 (CON
T)
Ref
er
to the
“1. Pow
er
Check
Fl
ow
” on page 2.
Exchange the
IC
704.
Part N
o.
6-702-302-01
Description IC
TK1113
3CS
C
L-G
Part N
o.
1-821-398-41
De
sc
rip
tio
n
H
D
MI
CON
N
EC
TOR
(H
DMI
A
R
C
OUT)
Exchange the
C
N
701
N
ote: When
CN701
is
exchanged,
be
careful
of the
qual
ity of sol
deri
ng enough.
No
No
No
No
No
No
No
No
No
No
No
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