White Balance Adjustment - Pioneer PDU-50WX2 Service Manual

PDU-50WX2

White Balance Adjustment

Control Panel microcomputer, EEPROM
Memory Adjustment value, Mode setting
Adjust the white balance of the panel.
1 Setting of the white balance mode
Command
Set to the reference mode
Set to the offset mode (1/2/3) : PT1/PT2/PT3
Operation after command reception
• Write in the received mode into EEPROM.
• Read out the adjustment value (highlight / low light of RGB each color) of received mode from the EEPROM.
• Transmit a command of highlight adjustment and lowlight adjustment command to the panel microcomputer.
2 RGB each color highlight adjustment
Command
Red highlight adjustment : PRH [Numeric data (3 byte, 000 - 255)]
Green highlight adjustment : PGH [Numeric data (3 byte, 000 - 255)]
Blue highlight adjustment : PBH [Numeric data (3 byte, 000 - 255)]
Operation after command reception
• Overwrite a highlight adjustment value of mode (PT0 - PT3) during setting with numeric data.
• Transmit a command to the panel microcomputer.
< Command transmission rule of panel microcomputer >
eABC
e command A data : Red drive level, 00hex - FFhex
e command B data : Green drive level, 00hex - FFhex
e command C data : Blue drive level, 00hex - FFhex
However, adjustment value (ABC data) which is transmitted to the panel microcomputer is defined as follows by the setting mode.
At PT0 setting : Adjustment value = Reference value
AT PT1 - PT3 setting : Adjustment value = Reference value + Offset value – 255 (reference value)
* Data except adjusting color transmit stored data.
66
: PT0