Pioneer PDP-LX508A, Руководство по обслуживанию

Страница: 30 / 153

PDP-508XG
30
1 2 3 4
1 2 3 4
C
D
F
A
B
E
4.3 DIAGNOSIS OF SD (SHUTDOWN)
4.3.1 SD (SHUTDOWN) DIAGNOSIS
Fre
q
uenc
y of
LED Flashin
g
Major T
ype
Detailed T
ype
Lo
g
Indication in F
actor
y Mode
Chec
kpoint
P
ossib
le Def
ective
Pa
rt
Remarks
MAIN
SUB
Bl
u
e 1
A
b
nor
mality in the
Seq
u
ence LSI
Comm
u
nication error
SQ-LSI
R
T
R
Y
CLK_SQ/TXD_SQ, etc.
IC3401, IC3151
SQ_IC comm
u
nication not esta
b
lished.
IC3401 ma
y not ha
v
e proper
ly star
ted
u
p.
Dr
i
v
e stop
SQ
N
O
Chec
k if the
v
ideo sync signal is inp
u
t to IC3401.
C
N
3001, IC3001,IC3401
A sh
u
tdo
w
n occ
u
rs if IC3401 has not proper
ly star
ted
u
p (a comm
u
nication f
ail
u
re
b
et
w
een IC3401 and IC3306 [FLASH]).
B
u
sy
B
USY
B
USY_SQ
IC3401, IC3151
If B
USY_SQ remains high, a sh
u
tdo
w
n is gener
ated.
Incoherent
v
ersion (hard
w
are
, soft
w
are)
V
ER-HS
Chec
k the model n
u
m
b
er of the DIGIT
AL Assy and the destination of SEQ-PR
OS
.
IC3306, IC3151
The
w
ritten SEQ-PR
OG is incoherent
w
ith data on the DIGIT
AL Assy
.
Incoherent
v
ersion (memor
y,
soft
w
are)
V
ER-MS
Chec
k the model n
u
m
b
er of the DIGIT
AL Assy and the
destination of SEQ-PR
OS
.
IC3306, IC3151
A sh
u
tdo
w
n occ
u
rs if the SEQ-PR
OG that has
b
een stored in
b
ac
k
u
p
memor
y does not coincide
w
ith the act
u
al SEQ-PR
OG.
Bl
u
e 2
F
ail
u
re in IIC
comm
u
nication
w
ith the
mod
u
le microcomp
u
ter
DIGIT
AL Assy EEPR
OM
MD-IIC
EEPR
OM
IIC comm
u
nication line of IC3156
IC3156, IC3151
Chec
k the p
u
ll-
u
p resistor of the IIC control line and the po
w
er to the corresponding IC
.
SE
N
SOR Assy EEPR
OM
BA
CKUP
IIC comm
u
nication line of IC3652
IC3652, IC3151
Chec
k the p
u
ll-
u
p resistor of the IIC control line and the po
w
er to the corresponding IC
.
DA
C
1
DA
C
1
IIC comm
u
nication line of IC3157
IC3157, IC3151
Chec
k the p
u
ll-
u
p resistor of the IIC control line and the po
w
er to the corresponding IC
.
DA
C
2
DA
C
2
IIC comm
u
nication line of IC315
8
IC315
8
, IC3151
Chec
k the p
u
ll-
u
p resistor of the IIC control line and the po
w
er to the corresponding IC
.
Bl
u
e 3
A
b
nor
mality in RST2
po
w
er decrease
–
RST2
–
Is the o
u
tp
u
t
v
oltage of the DC-DC con
v
er
ter lo
w
?
IC3602(BD9302FP)
If RST2 does not
b
ecome high after the
u
nit is t
u
rned on, a sh
u
tdo
w
n
w
ill
b
e gener
ated in se
v
er
al seconds
.
The 12
V
po
w
er is not o
u
tp
u
t.
PO
W
ER SUPPL
Y Unit,FU3601
Chec
k if
V
+ 12
V
is star
ted.
Also chec
k if the FU3601 on the DIGIT
AL Assy has
b
een melted.
Bl
u
e 4
A
b
nor
mality in panel
temper
at
u
re
–
TMP-
N
G
TMP-H TMP-L
High temper
at
u
re a
b
nor
mality in the panel temper
at
u
re sensor
If
TEMP1 that is read
b
y the mod
u
le microcomp
u
ter is 75
°
C or higher
, a sh
u
tdo
w
n
w
ill
b
e gener
ated.
Lo
w
temper
at
u
re a
b
nor
mality in the panel temper
at
u
re sensor
SE
N
SOR Assy (IC3651)
SE
N
SOR Assy (IC3651)
A sh
u
tdo
w
n occ
u
rs if the reading of
TEMP1 detected
b
y the mod
u
le microcomp
u
ter is
–20°C or less
. Also chec
k the connection
w
ith the SE
N
SOR Assy
.
Bl
u
e 5
Shor
t-circ
u
iting of the
speak
ers / D-AMP
temper
at
u
re a
b
nor
mality
–
A
UDIO
–
Speak
er ter
minals
J
A9301
Chec
k if an
y speak
er ca
b
le is in contact
w
ith the chassis
.
A
UDIO_AMP
IC9201, IC9101
Chec
k if the AMP o
u
tp
u
t is shor
t-circ
u
ited.
P
e
ri
pher
y of the ca
b
le
b
et
w
een IO3 and M
8
, and IO6 and P5
C
N88
03,C
N
4001,C
N88
06,P5
Chec
k if ca
b
les are fir
mly connected.
Bl
u
e 6
Fa
il
u
re in comm
u
nication
w
ith
the mod
u
le microcomp
u
ter
–
MODULE
–
Comm
u
nication line
b
et
w
een MAI
N
and MOD
IC3151, IC
8
401
Chec
k the comm
u
nication lines (TXD_MOD/RXD_MOD/REQ_MOD).
P
e
ripher
y of the ca
b
le
b
et
w
een D11 and M1
C
N
3001, C
N
4101
Chec
k if ca
b
les are fir
mly connected.
Bl
u
e 7
F
ail
u
re in main
microcomp
u
ter 3-
w
ire
ser
ial comm
u
nication
IF microcomp
u
ter
MA-3L
IF
Comm
u
nication line
b
et
w
een IF and MAI
N
IC
8
301, IC
8
401
Chec
k the comm
u
nication lines (TXD_IF/RXD_IF/CLK_IF/B
USY_IF/CE_IF/REQ_IF).
MUL
TI processor
MUL
TI
Comm
u
nication line
b
et
w
een MUL
TI and MAI
N
IC
8
001, IC
8
401
Chec
k the comm
u
nication lines (TXD_IC3/RXD_IC3).
Bl
u
e
8
F
ail
u
re in IIC
comm
u
nication
w
ith the
main microcomp
u
ter
T
u
ner 1
MA-IIC
FE1
IIC comm
u
nication line
b
et
w
een T
u
ner and MAI
N
U6001,IC
8
401,IC6101
Chec
k the comm
u
nication lines (SCL_TU/SD
A_TU or SCL_A
V
5/SD
A_A
V
5).
MSP/MAP
MSPMAP
IIC comm
u
nication line
b
et
w
een MSP/MAP and MAI
N
IC9101, IC
8
401
Chec
k the comm
u
nication lines (SCL_A
V
/SD
A_A
V
).
A
V
s
w
itch
A
V
-S
W
IIC comm
u
nication line
b
et
w
een A
V
-S
W
and MAI
N
IC4601, IC
8
401
Chec
k the comm
u
nication lines (SCL_A
V
5/SD
A_A
V
5).
RGB s
w
itch
RGB-S
W
IIC comm
u
nication line
b
et
w
een RGB-S
W
and MAI
N
IC4701, IC
8
401
Chec
k the comm
u
nication lines (SCL_A
V
5/SD
A_A
V
5).
V
DEC
V
DEC
IIC comm
u
nication line
b
et
w
een M-
V
DEC and MAI
N
IC4
8
01, IC
8
401
Chec
k the comm
u
nication lines (SCL_MB/SD
A_MB).
V
DEC SDRAM
SDRAM
IIC comm
u
nication line
b
et
w
een
V
DEC and SDRAM
IC4
8
01, IC4
8
02
Chec
k the comm
u
nication lines (SDRAM).
Def
ecti
v
e SDRAM
AD/PLL
ADC
IIC comm
u
nication line
b
et
w
een ADC and MAI
N
IC5001, IC
8
401
Chec
k the comm
u
nication lines (SCL_A
V
/SD
A_A
V
).
HDMI
HDMI
IIC comm
u
nication line
b
et
w
een HDMI_RX and MAI
N
IC5201, IC
8
401
Chec
k the comm
u
nication lines (SCL_MB/SD
A_MB).
IIC comm
u
nication line
b
et
w
een EEPR
OM and MAI
N
Chec
k the comm
u
nication lines (SCL_EP/SD
A_EP).
DT
V
star
t
u
p error
IC
8
404, IC
8
401
Bl
u
e 9
Fa
il
u
re in comm
u
nication
w
ith the main microcomp
u
ter
MAI
N
–
FA
N
1
–
Comm
u
nication line
b
et
w
een IF and MAI
N
IC
8
301, IC
8
401
Chec
k the comm
u
nication lines (TXD_IF/RXD_IF/CLK_IF/B
USY_IF/CE_IF/REQ_IF).
Bl
u
e 10
F
A
N
N
G
FA
N
PS/RST
–
Dir
t attached to the f
an motor
–
Chec
k the f
an(AXM1057).
P
e
ripher
y of the F
A
N
CO
NN
ECT
A
WW
1290, A
WW
1329
F
A
N
N
G
Chec
k if ca
b
les are fir
mly connected.
Pe
ripher
y of the ca
b
le
b
et
w
een F
A1 and M5, F
A
N
and M4, and F
A2 and F
A
5
C
N
9551 to C
N
9555,C
N
4103,C
N
410
8
P
e
ripher
y of the f
an control reg
u
lator
IC4310, IC4303
–
Bl
u
e 11
High temper
at
u
re of the
u
nit
–
FA
N
1
TEMP2
–
T
emper
at
u
re sensor or its per
ipher
y
–
TEMP2 A sh
u
tdo
w
n occ
u
rs
b
eca
u
se of high temper
at
u
re
.
P
e
ripher
y of the temper
at
u
re sensor
TH9091
TEMP2
P
e
ripher
y of the ca
b
le
b
et
w
een IO4 and M6
C
N88
04, C
N
4004
Chec
k if ca
b
les are fir
mly connected.
Bl
u
e 12
Bl
u
e 15
Digital T
u
ner
(PDP-50
8
XD
A only)
Main EEPR
OM
DTU
N
ER
MA-EEP
–I
C
8
401
Chec
k if DT
V
antenna is shor
t-circ
u
ited.
DT
V
comm
u
nication error
RETR
Y
––
–
Bl
u
e 13
F
ail
u
re in the po
w
er
s
u
pply
DC-DC Con
v
er
ter po
w
er decrease
Main EEPR
OM comm
u
nication error
RST
-MA
M-DCDC
DC-DC con
v
er
ter 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
ef
or
m chec
k point is 5
V
.
PO
W
ER SUPPL
Y
RELA
Y
The 12
V
po
w
er is not o
u
tp
u
t, 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 o
u
tp
u
tP
O
W
ER SUPPL
Y Unit
Chec
k if
V
+ 6.5
V
is star
ted.
The 5.1
V
po
w
er is not o
u
tp
u
tP
O
W
ER SUPPL
Y Unit
Chec
k if
V
+ 5.1
V
is star
ted.
EMG_DDC
DCDC con
v
er
ter
Chec
k if the DCDC con
v
er
ter is o
v
er
loaded.
P
e
ripher
y of the ca
b
le
b
et
w
een P
8
and M3
C
N
4105
Chec
k if ca
b
les are fir
mly connected.