Kenwood DPX 5050 Service Manual

Page 9

DPX-4020

TEST MODE /ADJUSTMENT

I How to enter the test mode

While pressing on + or + keys, press

key. It is possible to enter the test mode in this manner.

l Test Mode Condition
When booted with all OFF.
The value for the volume is -10dB. (On display: 30)
Beep disabled.
A|| lights display.

CRSC: OFF (Only K/M type)
DSP: Bybass

EQ: Flat

SEP/ANA: Peak hold

However, when entering the test mode with + key,
the volume value will be -30dB with beep enabled.

The beep enable condition is such that, regardless of effective
keys and non-effective keys, beeps are effective whenever
keys are pressed.

I Test Mode (Display)
Since there are many segment numbers in the display
section, bridging with other segments can be confirmed (Only
when the source condition is in all OFF.)

l Test Mode (Source: CD)
When the disk is loaded, track No. 9 is the first track to be
played.
The following keys are operated only when the source is CD.
When there are changes in the track numbers being played in
other cases, the playing is continued.

key selects only certain tracks.

key selects by going down the tracks, as with the regular

operation.

l Test Mode (EQ Adjustment)
When displaying the source, by pressing once
quickly, adjustment mode is entered.
When Q key is press: Flat
When key is pressed: Full boost
Whne key is pressed: Full cut

I The settings for Q, Feq, Ex are fixed.

Bass O 2.0
Feq 1 SOHZ
Ext ON

Mid O 2.0
Feq 1 kHz

Treble Feq 10KHz

l Test Mode (Audio Adjustment)
While displaying the source, by pressing key in an
elongated manner, adjustment mode is entered. By
continuing with key, the following items may be
selected and and keys can be used for adjustment.

* For balance adjustment, three steps of Right ,. Center ,. Left
are set. (L15, R15)

* For fader adjustment, three steps of Front ,. Center ,. Rear
are set. (F15, R15)

* For the amplifier control, OFF ,. 2

* Test Mode (Function at the time of ALL OFF Source)
By pressing key in an elongated manner
during each sources, adjustment mode can be entered and
the following items are selected with keys.
Adjustment will be conducted with and keys.
The following are added to each source functions (including
CD and TAPE).

For Preout adjustment, Front ,. Rear ,. N-F

* Preout adjustment is the first item.

I Releasing the Test Mode
Test mode is released by RESET, ACC OFF/ON, Power
OFF/ON.
Also, Source, Tuner, and Audio are returned to initial condition
by ACC OFF and Power OFF.

l Backup current measurement compatible
Regardless of the test mode, when reset at A00 OFF
condition (Backup is ON), MUTE will go OFF after two
seconds. (The peripherals are not powered off unlit the
CD/MD mechanism stops, it takes 2 seconds plus alpha.)

Adjustment

This model has no adjustment items.

Tuner section adjustment is conducted for individual F/E and
adjustment cannot be conducted on a set.

Dolby adjustment

Play the Tape TCC-130 and adjust so that -6dBm (388mV) is
achieved at test points for Lch/Rch, Fwd/Rev. For each
channel, common difference within 2dB (31 OmV - 488mV)

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* Make an end of adjustment prior to shipment from the factory.