Pioneer DEX-P99RS/UC Service Manual page 31

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Version information display
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PD
X X X X : PD number information of System microcomputer
Y Y Y Y : PD number information of Display microcomputer
Z Z Z Z Z : PD number information of Image ROM
Ver.
: System microcomputer Ver.Info
: Display microcomputer Ver.Info
: Image ROM Ver.Info
$ . $ $ : DSP IC Ver.Info
If impossible of the version acquisition, it is displayed as "-".
*) In the state of source OFF, cannot acquire the version of the DSP IC.
When perform the version confirmation of the DSP IC, do ON of source.
If nothing is displayed on the screen:
There may be a problem with the communication, or the display microcomputer may have an error.
If a number apparently strange is displayed as the display microcomputer version:
The display microcomputer may be defective.
If a number apparently strange is displayed as the image ROM version:
The connection between the display microcomputer and the image ROM may be defective.
If a number apparently strange is displayed as the system microcomputer version:
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L 13942296513
There may be a problem in the communication with the system microcomputer.
ROM CORRECTION information display
When information could be acquired from EEPROM.
When information couldn't be acquired from EEPROM.
$ $ $ $ $ $ $ $ $ : Error information
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If nothing is displayed on the screen:
There may be a problem with the communication, or the display microcomputer may have an error.
If a number apparently strange is displayed as the EEPROM version:
.
There may be a problem with the communication.
If a version display is being made but the number of CH used is not displayed properly:
The connection with the EEPROM may be defective.
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(When the Unit number is PEG588A, it is displayed as 588A.)
(When the Unit number is PD8190A, it is displayed as 8190A.)
: EEPROM Ver.Info
: CH use information (1:Use / 0:Not use Corresponds from the left to CH1, CH2, CH3, CH4)
NO_EEPROM (ROM CORRECTION is not connected)
ROM_ERROR (ROM CORRECTION data error)
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DEX-P99RS/UC
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