Installer Memory Specifications; Backup Memory Specifications - Kenwood DPX501 Service Manual

INSTALLER MEMORY SPECIFICATIONS

At specialists (or specialty stores), when the installer sends
the vehicle back to the user, they may make the store-recom-
mended audio configuration.
When the user changes the setting values, when the backup
power supply was taken out at times of battery change or when
the reset button was pressed, to make it possible to recall the
setting values, the store-recommended configuration values
can be saved into E2PROM.
The specification detail defer in "with-DSP model" and in "with-
out-DSP model".
• Calling and saving the configuration is done by the MENU.
• Items to be saved are Bass, Middle, Treble, X' over, and
Sub Woofer Level (Refer to the separate document for more
detail). Only one setting can be saved for each item (Bass/
Middle/Treble settings can be changed for each source, but
only one setting can be saved as the installer memory speci-
fication, and the source in which the saving operation was
carried out is saved as such).
Settings by the user other than the installer memory items are
saved into the E2PROM, and when the backup power supply
was taken out at times of battery change or when the reset
button was pressed, it is made possible to recall the setting
values saved.
• While Power ON, the memory is saved and accumulated at
a certain interval (temporary).
• Items to be saved into the memory are: Volume Offset (for
all sources) and preset frequencies (FM/AM all bands x 6
channels).

BACKUP MEMORY SPECIFICATIONS

DPX501/501U/501UY
DPX-MP2090U
• The contents read out by the call key shall be reflected only
to the current source at the time → EQ curve is "USER"
(Bass/Middle/Treble settings can be changed for each
source, but not reflected to Bass/Middle/Treble settings of
sources other than where the calling operation was carried
out).
• When the backup power supply was taken out at times of
battery change or when the reset button was pressed, as
the initial setting values of Bass, Middle, Treble, X' over,
and Sub Woofer Level, the saved memory is reflected.
(Bass/Middle/Treble setting initial setting value memory is
reflected in all sources.)
NOTE: By such, EQ curve initial setting shall always be "USER"
(NOT "NATURAL" or "FLAT").
• When the backup power supply was taken out at times of
battery change or when the reset button was pressed, as
the initial setting values of Volume Offset (for all sources)
and preset frequencies (FM/AM all bands x 6 channels),
the saved memory is reflected.
• In models which includes span-switching, when span is
switched, TUNER-preset frequencies are set back to the
default values.
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