Pioneer PDP-4280HD, Руководство по обслуживанию

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PDP-4280HD
69
5 6 7 8
5 6
7
8
C
D
F
A
B
E
Frequenc
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
RETR
Y
Comm
unication line betw
een BCM7038 and MAIN
IC6401
Chec
k the star
tup of the BCM7038 and the comm
unication line with MAIN.
DE-BCM
P
er
ipher
y of BCM7038
IC6401
DE-FE
F
ront-end b
loc
k (ANT
-A)
IC6401, U6101 IC6903, IC6401 IC6401, A
WV2497
IC7302, IC6401, A
WV2496
Chec
k the BCM7038 and its per
ipher
y de
vice
DE-CAS
P
er
ipher
y of
VBI slicer
Chec
k the BCM7038 and its per
ipher
y de
vice
DE-VBI
IC7001
Chec
k the BCM7038 and its per
ipher
y de
vice
DE-EP1
Chec
k the BCM7038 and its per
ipher
y de
vice
TV
-G
Chec
k the BCM7038 and its per
ipher
y de
vice
(No LED will b
link if a shutdo
wn is gener
ated dur
ing po
w
er standb
y.)
HOME-G
HNM circuit DTV middle
w
are
TV
-GUIDE function (Data from broadcast w
a
v
e)
DTV application
Chec
k the BCM7038 and its per
ipher
y de
vice
DTVMID DTV
APP
TV Guide Home Galler
y
Middle
w
are
Application
IIC comm
unication line betw
een EEPR
OM and MAIN
Chec
k the comm
unication lines (SCL_EP/SD
A_EP).
IC8404, IC8401
PS/RST
DTV comm
unication error
BCM7038 is abnor
mal
T
uner1 or
T
uner2
Card I/F IC VBI Slicer EEPR
OM
DTV star
tup error
–
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
er
ipher
y of the temper
ature sensor
TH9091
TEMP2
P
er
ipher
y of the cab
le betw
een IO4 and M6
CN8804, CN4004
Chec
k if cab
les are fir
mly connected.
Blue 12 Blue 15
Digital T
uner
Main EEPR
OM
DTUNER MA-EEP
Star
tup of BCM7038
IC6401
Chec
k the star
tup of the BCM7038 and the comm
unication line with MAIN.
Blue 13
F
ailure in the po
w
er
supply
DC-DC Con
ver
ter po
w
er decrease
Main EEPR
OM comm
unication error
P
er
ipher
y of connector
Chec
k if cab
les are fir
mly connected.
CN4111
ST
AR
T
Blue 14
Home Media Galler
y
HMG
HMG star
tup 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, Q4304
Chec
k if the v
oltage at a w
a
v
ef
or
m chec
k point is 5
V
.
PO
WER SUPPL
Y
RELA
Y
The 12
V po
w
er is not output, RST4
PO
WER SUPPL
Y Unit
Chec
k if
V + 12
V is star
ted.
The 6.5
V po
w
er is not output
PO
WER SUPPL
Y Unit
Chec
k if
V + 6.5
V is star
ted.
The 5.1
V po
w
er is not output
PO
WER 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
er
ipher
y of the cab
le betw
een P8 and M3
CN4105
Chec
k if cab
les are fir
mly connected.
HNM po
w
er supply
IC4309, Q4304
Chec
k if the v
oltage at a w
a
v
ef
or
m chec
k point is 5
V
.