Pioneer PDP-503CMX Service Manual page 128

1
Diagnosis Method in Power Down
The data (1st/2nd/time stamp) on the past eight power-downs are stored in memory.
A
1 OSD display of the PD history
The PD history displayed in "INFORMATION" of the Factory menu.
1 5 10
1
I N F O
PD I N FO
5
1 S T
1 X DDC –
2 A D R – K
–
3 Y DR V
10
4 A D R E S
5 – – – – –
– – – – –
6
7 – – – – –
B
8 – – – – –
15
16
2 Retrieval of PD history by RS-232C command "GPD"
Order
C
1 The latest "1st PD" point
2 The latest "2nd PD" point
3 The latest PD time stamp
4 Second latest "1st PD" point
5 Second latest "2nd PD" point
6 Second latest PD time stamp
7 Third latest "1st PD" point
8 Third latest "2nd PD" point
9 Third latest PD time stamp
10 Fourth latest "1st PD" point
11 Fourth latest "2nd PD" point
12 Fourth latest PD time stamp
D
13 Fifth latest "1st PD" point
14 Fifth latest "2nd PD" point
15 Fifth latest PD time stamp
16 Sixth latest "1st PD" point
17 Sixth latest "2nd PD" point
18 Sixth latest PD time stamp
19 Seventh latest "1st PD" point
20 Seventh latest "2nd PD" point
21 Seventh latest PD time stamp
22 Eighth latest "1st PD" point
23 Eighth latest "2nd PD" point
E
24 Eighth latest PD time stamp
F
128
1
2
15 20 25 30 35
∗
# 1 – S 1 – I N 4 – 0 2 – 2 N T
2 ND
– – – – – 0 5 1 4 8 H 2 5 M
X – DDC 0 2 2 4 8 H 1 4 M
D – DC C 0 1 3 5 8 H 3 6 M
– – – – – 0 0 3 4 8 H 1 5 M
– – – – – 0 0 0 0 0 H 0 0 M
– – – – –
0 0 0 0 0 H 0 0 M
– – – – – H M
0 0 0 0 0 0 0
– – – – – 0 0 0 0 0 H 0 0 M
Data contents
2
3
Display of PD point
40
Power-Down Point
Y-DRIVE
Y-DC/DC COVERTER
X-DC/DC CONVERTER
X-DRIVE
Power supply
ADDRESS junction
ADDRESS resonance
DC/DC CONVERTER (DIGITAL)
Time stamp display
[OOOOOH] : HOUR, [OOM] : MINUTE
Example:
Time stamp display is [65432H10M] → 65432 hours 10 minutes
Data of PD point
Power-Down Point
Size
1 byte Y-DRIVE
1 byte Y-DC/DC COVERTER
7 byte X-DC/DC CONVERTER
1 byte X-DRIVE
1 byte Power supply
7 byte ADDRESS junction
1 byte ADDRESS resonance
1 byte DC/DC CONVERTER (DIGITAL)
7 byte
Time stamp data
1 byte
upper 5 byte: HOUR, lower 2 byte: MINUTE
1 byte
Example:
7 byte
Time stamp is [6543210] → 65432 hours 10 minutes
1 byte
1 byte
7 byte
1 byte
1 byte
7 byte
1 byte
1 byte
7 byte
1 byte
1 byte
7 byte
PDP-503CMX
3
4
OSD Display
Y-DRV
Y-DDC
X-DDC
X-DRV
POWER
ADRES
ADR-K
DC-DC
"GPD" Data
1
2
3
4
5
6
7
8
4