Kenwood Car audio - Kenwood DPX502 - DPX502U - DPX502UY - DPX-MP5100U –
CD-USB RECEIVER – Test mode – Audio initialization – Clearing security
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How to enter the test mode
Press and hold the [1] and [3] keys and reset. (While “– – – –” is being displayed, power can be ON for 30 minutes.)
How to clear the test mode
Reset, momentary power down, Acc OFF, Power OFF, detach the panel.
Test mode default condition
# Source is STANDBY.
# Display lights are all turned on.
# The volume is at 30 (-10dB).
# LOUD is OFF.
# CRSC is off regardless of the availability of switching function.
# SYSTEM EQ is NATURAL ( = FLAT).
# BEEP should always function when the key is pressed briefly .
# AUX is ON.
Specification of the test mode for tuner source
The frequency of 98.3MHz is received when the [4] key is pressed in the TUNER FM mode
Specification of FST soft mute adjustment mode
1. Receive the TUNER FM mode in the VOLUME 30 and LOUD OFF condition.
2. Press and hold the [PLAY] key for 2 seconds to enter the FST soft mute adjustment mode.
3. In the adjustment mode, the following display is shown.
Adjust the mute between 0 (18dBu) and F (36dBu) with the [FM] / [AM] keys.
(Display) SMD–x_ _ _ (Adjustment value, 0-F is displayed in “x”).
4. When the adjustment is “OK”, press and hold the [PLAY ] key for 2 seconds again to write the adjustment value in the E2PROM, and after the successful writing-in the “EP_WRITE” is displayed.
5. Press the [ PLAY ] key briefly to exit from the FST soft mute adjustment mode.
Special display in tuner mode
Error is found in front-end, etc. if indications below are displayed while in tuner mode.
# “TNE2P_NG” : E2PROM (in front-end: A500 of X34-) values are still default (not determined)
“TNCON_NG” : Cannot communicate with the front-end.
RDS/RBDS automatic measurement
When it is confirmed that the PS data has been received and that the content of the PS is “RDS_TEST”, force to OFF the P-CON terminal. ( The symbol, “_” indicates the blank. )
Make this as the process dedicated for the test mode.
P-CON is recovered by Power OFF> ON.
K3I forced switching
Every time when [6] key is pressed in tuner FM mode, switched in the following order: AUTO > Forced WIDE > Forced MIDDLE > Forced NARROW > AUTO. Default status is AUTO, and displayed as shown below.
# AUTO: FM1_98.1A , Forced WIDE: FM1_98.1W
# Forced MIDDLE: FM1_98.1M . Forced NARROW: FM1_98.1N
CD source test mode specification
# Display mode default setting shall be P-TIME.
# Jumps to the following tracks by pressing the [NEXT ] key.
No.9 > No.15 > No.10 > No.11 > No.12 > No.13 > No.22 > No.14 > No.9 (recursive)
Note that when playing a CD-DA disc and MP3 / WMA/ AAC / WAV discs with 8 files or less, the disc is played from the 1 track in the normal order.
# Pressing the [ PREVIOUS ] key goes back by 1 track from the track being played.
# When playing an MP3 / WMA / AAC/WAV disc, display the file format before starting to play each file.
( “MP3”, “WMA”, “AAC”, “WAV” )
# While in CD source, press the [1] key briefly to jump to No.28.
# While in CD source, press the [2] key briefly to jump to No.14.
# While in CD source, press the [3] key briefly to display CD mechanism model name and the version.
Press the [3] key briefly again to return to the normal display. (Time code display)
While in CD source, press the [6] key briefly to jump to No.15. At this time, the volume value is set to 25 (2V PRE).
AUDIO adjust mode
# Press the [AUD] key and enter the audio adjustment mode.
# Press the remote control [∗] key and [AUD] key to enter the audio adjustment mode.
# Both AUDIO FUNCTION MODE and SETUP MODE adjustment items are included.
# By pressing [AUD] and [FM] key briefly, switch the item to be adjusted in the following order. (Only in forward rotation)
The default item shall be Fader, and then the item is forwarded in the following order: Balance > Bass Level > Middle Level > Treble Level > HPF Front > HPF Rear > LPF Sub Woofer. (thereafter arbitrary)
Initializing AUDIO-related setting value
Press the [ NEXT ] key briefly in the STANDBY source and reset the AUDIO setting value to the test mode default value.
How to clear the programmable code
(DPX502/DPX-MP5100U only)
1. While “_ _ _ _” is being displayed, press [NEXT ] key for 3 seconds or longer while pressing the [AUTO] or [TI] keys.
(This makes the “_ _ _ _” display disappear.)
2. Input “KCAR”, using the remote controller.
Press [5] key of the remote controller 2 times (Input for “K”) and press [ NEXT ] key.
Press [2] key of the remote controller 3 times (Input for “C”) and press [NEXT] key.
Press [2] key of the remote controller once (Input for “A”) and press [NEXT] key.
Press [7] key of the remote controller 2 times (Input for “R”) and press [NEXT ] key.
3. The security is cleared and the unit enters STANDBY source.
4. If wrong codes are input, “_ _ _ _” will be displayed again