Pioneer PDP-4270XA Service Manual page 130

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1
A
8.2.2.3 POWER DOWN
• The power-down history is displayed. The last most 8 power-down histories are displayed with the hour-meter values
that indicate the hours when power-downs occurred. No other layers are nested below this layer, and there are no
adjustment items.
1
5
1
P
A
N E L
F A C T
AREA
1
P
O
W E R
D W
O
2
1
S
T
5
3
4
1
X – D
R
5
2
Y – S
U
6
3
S C A N
7
4
P O W
E
B
5
10
8
A D R S
9
6
S C N 5 V
7
A
Y – D C
B
8
C
15
D
E
16
<Causes of power-down and corresponding OSD indications>
Cause of power-down
POWER SUPPLY Unit
SCAN Assy
5V power for SCAN Assy
C
Y DRIVE Assy
DC/DC converter for Y drive
Y-drive SUS circuit
* When power-down is confirmed, the factor is displayed as "1st", "2nd", according to the accuracy order.
* The power-down history is not recorded when the power-down occurred at the same place and same time.
8.2.2.4 SHUT DOWN
• The shutdown history is displayed. The last most 8 shutdown histories are displayed with the hour-meter values
that indicate the hours when shutdowns occurred. No other layers are nested below this layer, and there are no
adjustment items.
1
5
D
1
P
A
N E L
F A C T
AREA
1
S
H
U T
D W
O
2
M
A
I N
5
3
4
T M
P
1
5
2
S Q –
I
6
3
M D – I I C
7
4
S Q –
I
10
8
5
M D – I I C
9
6
S Q –
I
7
A
B
8
C
15
D
E
16
E
* When there is detail information when shutdown occurred, the possible defective part is displayed as Sub information.
<Cause of
shut-down and corresponding OSD Indication
Cause of shut-down (MAIN)
Item
Drive Processing IC
MDU-IIC
F
High temperature of the panel
130
1
2
10
15
20
25
.
A
V 1
3
0 6 0
2
– R G B
N
2
N
D
0
0
0
1
2
4
V
– – –
0
0
0
1
2
4
S
S Q –
N
O
N
0
0
0
1
1
5
– – – –
0
0
0
1
0
7
R
S C A N
0
0
0
0
9
8
– – –
0
0
0
0
5
1
X – D C
D
C
0
0
0
0
2
2
D
C
0
0
0
0
0
0
– – – –
OSD Indication
P-PWR
SCAN
SCAN5V
YDRV
Y-DCDC
Y-SUS
10
15
20
25
.
A
V 1
3
0 6 0
2
– R G B
N
S
U
B
0
0
0
1
2
4
N G
0
0
0
1
2
4
T E M
P
1
C
S Q N
O
/
L
0
0
0
1
1
5
E E P R
O
M
0
0
0
1
0
7
C
V E R –
L
R
0
0
0
0
9
8
B A C K U P
0
0
0
0
5
1
C
0
0
0
0
1
2
S E P –
I C
OSD Indication
SQ-IC
MD-IIC
TMP-NG
2
3
30
32
7 Key operation
E
H
B 7
<DOWN> : Shifting to SHUT DOWN
H
2 3 M
<UP>
<L/R>
H
2 1 M
H
0 5 M
H
5 3 M
H
4 7 M
H
3 0 M
H
2 1 M
H
5 7 M
H
M
Cause of power-down
ADDRESS Assy
X DRIVE Assy
DC/DC converter for X drive
X-drive SUS circuit
Specification inability
30
32
7 Key operation
E
H
B 7
<DOWN> : Shifting to PANEL-1 ADJ (+)
H
2 3 M
<UP>
<L/R>
H
2 1 M
H
0 5 M
H
5 3 M
H
4 7 M
H
3 0
M
0 7
M
H
H
M
H
M
>
Cause of shut-down (SUB)
Item
Communication Error
Drive Stop
Communication Busy
Incoherent Version
MAIN EEPROM
Communication Error
BACKUP EEPROM
Communication Error
DAC Communication Error
Temperature NG
PDP-427XD
3
4
: Shifting to PANEL WORKS
: Updating displayed information
OSD Indication
ADRS
XDRV
X-DCDC
X-SUS
UNKNOWN
: Shifting to POWER DOWN
: Updating displayed information
OSD Indication
RTRY
SQNO
BUSY
VER-HS
EEPROM
BACKUP
DAC
TEMP
4

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