Backup Eeprom; N F O R M A T I O N I N 1 - G 3 2 - R G B - 4 M X - Pioneer 434CMX - PDP - 43" Plasma Panel Service Manual

1

10. BACKUP EEPROM

When the DIGITAL VIDEO Assy is to be replaced, the adjustment values in it are temporarily stored in the backup ROM then
are written on the new Assy after replacement.
A
1 Check if adjustment has been made on the DIGITAL VIDEO Assy or not (i.e., in the state of a new service part), and if the
data on any adjustment values are retained in the backup ROM or not.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
1
I N F O R M A T I O N
2
3
D I G I T A L
4
5
A D J U S T
6
B A C K
7
8
9
10
11
B
12
13
14
15
16
• ADJUST: OK (DIGITAL VIDEO Assy adjusted)
NG (DIGITAL VIDEO Assy not adjusted)
• BACKUP: OK (Adjustment data retained in the backup ROM)
NG (Adjustment data not retained in the backup ROM)
2 Downloading the data for the DIGITAL VIDEO Assy from the backup ROM
• Press the SET key while display 1 above is displayed, and the following display will appear.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
C
1
I N F O R M A T I O N
2
3
D I G I T A L
4
5
6
7
8
9
10
11
12
13
14
15
16
• Move the cursor to YES and press the SET key.
D
The data in the backup ROM are copy to the DIGITAL VIDEO Assy.
(When a new DIGITAL VIDEO Assy has been mounted, it now has the adjustment data suited for the panel.)
• Move the cursor to NO, and press the SET key.
Copy of the data to the DIGITAL VIDEO Assy will not be executed.
3 Clearing the data in the ROM of the DIGITAL VIDEO Assy
• When YES or NO is selected while display 2 above is displayed, the following display will appear.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
1
I N F O R M A T I O N
2
3
D I G I T A L
4
5
6
E
7
8
9
10
11
12
13
14
15
16
• Move the cursor to YES and press the SET key.
The data in the ROM of the DIGITAL VIDEO Assy are cleared, and the Assy has no specific adjustment data.
• Move the cursor to NO and press the SET key. The data in the ROM of the DIGITAL VIDEO Assy are not cleared.
When YES selected on display 2 and the data were copy, select NO on this display.
Note: When YES or NO is selected on display 3 above, the display returns to that of 1 above.
F
74
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I N 1 – G 3 2 – R G B – 4 M X
E E P R OM
: N G
U P : O K
I N 1 – G 3 2 – R G B – 4 M X
E E P R OM
D A T A T R A N S F E R
Y E S N O
I N 1 – G 3 2 – R G B – 4 M X
E E P R OM
S E R V I C E P A R T S
Y E S N O
PDP-434CMX
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3
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