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1

7.1.3 DIAGNOSIS WITH THE AID OF FACTORY MODE

• Diagnosis with the aid of Factory mode
When the Media Receiver is connected, the power-down and shutdown logs can be referred to with OSD. Only the items
A
useful when servicing the PDP-434PU/PDP-504PU are described here.
How to enter Factory mode using the remote control unit
Please refer to the technical documentation (Service knowhow).
Power-down log (INFORMATION-PANEL PD)
The last 8 power-down records are held, with the latest power-down displayed at the top. In the FIRST column, the location
where the PD circuit was activated first (location indicated by flashing of the LED during power-down) is indicated, and in the
SECOND column, the location where the PD circuit was activated second is indicated.
Note: There may not be a SECOND PD.
B
1
5
10
1
I
N
F O
R
M
A T
P
A
N E L
P D
5
F
I
R
S T
1
X
D
R V
Y
S
U S
2
S
C
A
N
3
10
4
Y
D
C D C
5
S
C
N
– 5 V
A
D
R
S
6
7
C
8
15
16
Shutdown log (INFORMATION-PANEL SD)
The last 8 shutdown records are held, with the latest shutdown displayed at the top. If a shutdown occurred because of "MD-
IIC" (communication failure of the module microcomputer IIC), the subcategory is indicated to inform you of with which device
the microcomputer was in the process of communicating when a failure occurred.
1
5
10
1
I
N
F O
R
M
A T
D
P
A
N E L
P D
5
M
A
I
N
A
U
D
I O
1
2
M
D
I I C
3
T
E
M
P 1
10
T
E
M
P 1
4
5
6
7
8
15
16
E
[ Data on MD-IIC subcategories ]
OSD
Defective communication part
EROM4K
IC5206: Module microcomputer
EROM2K
IC4002: EEPROM for backup
VOLIC
IC3502–Volume IC
F
60
1
2
15
20
25
30
I
O
N
I
N 1
0 1 3 – N T V
S
E
C
O N D
– – – – –
0 0 5 2
3
Y – D C
D
C
0 0 2 7
5
– – – – –
0 0 0 9
0
– – – – –
0 0 0 4
3
– – – – –
0 0 0 0
2
– – – – –
0 0 0 0
0
15
20
25
30
I
O
N
I
N 1
0 1 3 – N T V
S
U
B
– – – – –
0 0 1 0
3
H
5
V O L I C
0 0 0 7
5
H
4
– – – – –
0 0 0 5
0
H
5
– – – – –
0 0 0 5
0
H
4
H
H
H
H
PDP-434PU
2
3
35
40
S
T 1
H
5
1
M
H
4
2
M
H
5
0
M
H
0
3
M
H
3
1
M
H
0
7
M
H
M
H
M
35
40
S
T 1
1
M
2
M
0
M
5
M
M
M
M
M
3
4
4

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