Method For Replacing The Service Panel Assy - Pioneer PDP-425CMX Service Manual

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6.7 METHOD FOR REPLACING THE SERVICE PANEL ASSY

The following adjustments are required when the Panel Assy is replaced with that for service:
• Voltage adjustment for Vofs and Vyprst
Input the reference-adjustment values for the Vofs and Vyprst voltages that are specified on the label of the panel for service.
Note: Use the RS-232C commands or Factory menu for input.
(Rear panel)
When using the RS-232C commands:
Enter Factory mode. Issue the FAY command.
Using the conversion table (see the next page,) convert the value of the adjustment voltage that is specified on the label
attached on the rear panel of the unit then input the command.
• Adjustment of Vofs reference voltage: E.g.: "Vofs = 35V" → (Check the conversion table.) Input VOF112.
• Adjustment of Vprst reference voltage: E.g.: For a 50-inch panel, Vyprst = 270V → (Check the conversion table.)
Input VRP055.
When using the Factory menu:
PANEL FACT.
PANEL-1 ADJ
PANEL-1 ADJ (+)
Enter Panel Factory mode, as indicated below:
Using the 5 or ∞ key, select PANEL-1 ADJ then press the SET key to enter the next nested layer.
Select VOL-OFFSET or VOL RST P then input a numeric command value that has been converted from the voltage value,
using the 2 or 3 key.
• Clearance of various logs for the panel, such as that for the hour-meter value
It is required to clear various data, such as the data on the hour-meter value, etc. to match the drive time of the panel. Write
down the hour-meter value at the time of the replacement in the margin of the label shown above.
The shutdown (SD) and power-down (PD) logs must be cleared at the same time, because the accumulated power-on time
when each SD or PD was generated is recorded in a log.
Note: For clearance of data, use the RS-232C commands or Factory menu.
There are two types of hour-meter data. Be careful NOT to clear the data for the MR hour meter.
When using the RS-232C commands:
Note: The accumulated power-on time for the product itself is acquired with the "QST" RS-232C command.
(See "6.5 Overview of the RS-232C commands.")
1. Clear the HOUR METER (panel) : CHM
2. Clear the PULSE METER
3. Clear the SD log
4. Clear the PD log
5
6
AWU∗∗∗∗
Vofs = 35V Vprst = 270V
Hour Meter
VD1-11601-NTV-4MX
(TBL4/70PS)
: CPM
: CSD
: CPD
6
7
AWU∗∗∗∗
Vofs = 35V Vyprst = 270V
Blank H Hour Meter
PANEL FACT. VD1-11601-NTV-4MX
PANEL-1 ADJ
VOL RST P <=>
PDP-425CMX
7
8
1520 H
Write down the hour-meter
value of the old panel.
E.g.: 1520H
(TBL4/70PS)
:058
8
A
B
C
D
E
F
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