Pioneer KURO PDP-LX508D, Service Manual

Page: 70 / 175

PDP-LX5080D
70
1 2 3 4
1 2 3 4
C
D
F
A
B
E
Fre
q
uenc
y of
LED Flashing
Major T
ype
Detailed T
ype
Log Indication in F
actor
y Mode
Chec
kpoint
P
ossib
le Def
ective
Pa
rt
Remarks
MAIN
SUB
IIC comm
unication line betw
een EEPR
OM and MAI
N
Chec
k the comm
unication lines (SCL_EP/SD
A_EP).
DT
V
star
tup error
IC
8
404, IC
8
401
PS/RST
–
Blue 11
High temper
ature of the
unit
–
TEMP2
–
T
emper
ature sensor or its per
ipher
y
–
TEMP2 A shutdo
wn occurs because of high temper
ature
.
P
e
ripher
y of the temper
ature sensor
TH9091
TEMP2
P
e
ripher
y of the cab
le betw
een IO4 and M6
C
N88
04, C
N
4004
Chec
k if cab
les are fir
mly connected.
Blue 12 Blue 15
Digital T
uner
Main EEPR
OM
DTU
N
ER
MA-EEP
–I
C
8
401
Chec
k if DT
V
antenna is shor
t-circuited.
DT
V
A
N
TE
NN
A
D-A
N
T
––
–
Blue 13
F
ailure in the po
w
er
supply
DC-DC Con
ve
rter po
w
e
r decrease
Main EEPR
OM comm
unication error
RST
-MA
M-DCDC
DC-DC con
v
e
rter or its per
ipher
y,
RST2
IC4403, Q4404
Chec
k if
V
+ 3.3
V
_D4 is star
ted.
EMG_USB
IC4309
Chec
k if the v
oltage at a w
a
v
e
fo
rm
chec
k point is 5
V
.
PO
W
ER SUPPL
Y
RELA
Y
The 12
V
po
w
er is not output, RST4
PO
W
ER SUPPL
Y Unit
Chec
k if
V
+ 12
V
is star
ted.
The 6.5
V
po
w
er is not output
PO
W
ER SUPPL
Y Unit
Chec
k if
V
+ 6.5
V
is star
ted.
The 5.1
V
po
w
er is not output
PO
W
ER SUPPL
Y Unit
Chec
k if
V
+ 5.1
V
is star
ted.
EMG_DDC
DCDC con
v
e
rter
Chec
k if the DCDC con
v
er
ter is o
v
er
loaded.
P
e
ripher
y of the cab
le betw
een P
8
and M3
C
N
4105
Chec
k if cab
les are fir
mly connected.