Pioneer PDP-504PE Service Manual page 67

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3. When a repaired DIGITAL VIDEO Assy is mounted on the original unit (reuse of the repaired DIGITAL VIDEO Assy)
Changing of keywords is not required. After the repaired DIGITAL VIDEO Assy is mounted in the original unit, the unit can operate with
its latest adjustment values.
4. When both the DIGITAL VIDEO Assy and PANEL IF Assy are simultaneously replaced with other assemblies
The automatic backup function of this unit will not work properly.
Note 2: Readjustment of the main unit is required.
Note 3: After readjustment of the main unit, send the "FAJ" RS232C command to change the keyword of the DIGITAL VIDEO Assy to
"adjusted." Thus, when the unit is turned off, automatic backup of adjustment data is performed properly.
Note 4: If readjustment of the main unit is totally impossible, it can be omitted by installing the EEPROM (IC5206, 4 kbits) originally mounted
on the DIGITAL VIDEO Assy for service.
Miscellaneous
If the white balance (W/B) value is largely shifted because of aging, etc., W/B adjustment is required. (As this may be a rare
case, the adjustment procedures are described below, just for your reference.
[ W/B-adjustment procedures ]
The W/B adjustment can be performed with the RS232C commands with the Media Receiver not connected to this unit. The GGF1475
special communication tool and a Minolta CA-100 color difference meter are required.
1 Enter Operation-without-the-Media-Receiver mode with the "SCN" RS232C command.
2 Set the keyword for the DIGITAL VIDEO Assy to "not adjusted" with the "UAJ" RS232C command.
3 Obtain the current adjustment values in the two adjustment tables (see "6.2.1 RS232C commands").
• Shifting to Table 1: Send the "M51" and "F60" commands. Obtaining the adjustment values: Send the "GPW" command.
• Shifting to Table 2: Send the "M51" and "F75" commands. Obtaining the adjustment values: Send the "GPW" command.
4 Make settings for various functions.
Send the "PPN," "SDN," "SPN," and "WAY" commands.
Note: After adjustment, when the POWER switch is set to OFF, these settings will be reset to the initial values.
5 For each table, set the brightness.
• Adjustment in Table 1: After sending the "F60" command, perform adjustment.
• Adjustment in Table 2: After sending the "F75" command, perform adjustment.
For each table, change the RGB parameters so that the values measured using a Minolta color difference meter (CA-100)
become as indicated below. In this case, any one of PRH, PGH, or PBH must be set to 256.
Left side of Mask H
x –
y –
6 Check after adjustment
• Shifting to Table 1: Send the "F60" command. Obtaining the adjustment values: Send the "GPW" command.
• Shifting to Table 2: Send the "F75" command. Obtaining the adjustment values: Send the "GPW" command.
Check that the adjustment data have been changed.
7 Change the keyword for the DIGITAL VIDEO Assy to "adjusted" by sending the "FAJ" RS232C command.
Note: Use a Minolta CA-100 color difference meter or the equivalent for measurement. Otherwise, the specifications of the product cannot be
assured.
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6
Right side of Mask H
"PRH***" : 000 - 511
284
"PGH***" : 000 - 511
292
"PBH***" : 000 - 511
PDP-504PU
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