45
DV-420V-K
5
6
7
8
5
6
7
8
A
B
C
D
E
F
4. How to confirm the version of the firmware
Pre
ss
the E
S
C then the CHAP key on the remote control
u
nit for
s
ervicing. The ver
s
ion of the firmw
a
re i
s
l
ab
eled ROM
NUMBER. Check if the ver
s
ion i
s
the l
a
te
s
t one.
YLG0
3
19A
AREA:WY
40
02A7
1.16
1
3
89FE
ROM NUMBER
REGION:2
REG CHK
S
UM CHK
FL VER
S
ION
CHIP VER
S
ION
How to interpret the version code:
N
u
m
b
er of rele
as
e
s
on the
sa
me rele
as
e d
a
te
Rele
as
e d
a
te:(Ex
a
mple:2010.
3
.19)
0:
Ye
a
r
3
: Month (1-9 [J
a
n-
S
ep], A-C [Oct-Dec])
19:
D
a
y
Fixed
Y L G 0 3 1 9 A
5. Troubleshooting
1
If
u
pd
a
ting of the firmw
a
re f
a
iled
If the m
a
in
u
nit w
as
t
u
rned off d
u
ring
u
pd
a
ting, it c
a
nnot initi
a
lize
a
nd
s
t
a
rt
u
p
a
g
a
in properly. In
su
ch
a
c
as
e, repl
a
ce the
fl
as
h ROM on the DVD MT PCB A
ss
y.
2
If
u
pd
a
ting of the firmw
a
re
us
ing the di
s
c for
u
pd
a
ting f
a
iled
•
W
as
the di
s
c for
u
pd
a
ting recognized properly?
Check if the vol
u
me l
ab
el of the di
s
c i
s
PIONEER.
a
n the di
s
c for
u
pd
a
ting po
ss
i
b
le?
s
a
l
s
o impo
ss
i
b
le,
a
re
a
ding
s
ection,
su
ch
as
PU, m
a
y
b
e defective. In
su
ch
a
c
as
e, rep
a
ir the
s
po
ss
i
b
le, the di
s
c for
u
pd
a
ting m
a
y
b
e defective. Check for
a
ny
s
cr
a
tche
s
or foreign m
a
tter,
a
ding
su
rf
a
ce.
s
c, cre
a
te
a
new di
s
c for
u
pd
a
ting
a
g
a
in.
www. xiaoyu163. com
QQ 376315150
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TEL 13942296513
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Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
