Diagnosis With The Aid Of Factory Mode - Pioneer PDP-434PU Service Manual

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