Sony STR DA2400ES - 7.1 Channel Home Theater AV Receiver Service Manual Download

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STR-DA2400ES/DG920

SECTION 4

TEST MODE

TUNER AM STEP CHANGE MODE
(DA2400ES: US/DG920 only)

Either the 9 kHz step or 10 kHz step can be selected for the AM
channel step.

Procedure:

1. Press the [POWER] button to turn on the main power.
2. Turn the [INPUT SELECTOR] dial to select the “AM TUN-

ER”.

3. Press the [POWER] button to turn off the main power.
4. While pressing the [TUNING MODE] button, press the

[POWER] button to turn on the main power.

5. Either the message “AM 9k Step” or “AM10k Step” appears,

select the desired step.

SOUND FIELD CLEAR MODE

The preset sound fi eld is cleared when this mode is activated. Use
this mode before returning the product to clients upon completion
of repair.

Procedure:

1. While pressing the [MUSIC] button, press the [POWER] but-

ton to turn on the main power.

2. The message “S.F. CLEAR” appears and initialization is per-

formed.

INITIALIZE MODE

All preset contents are cleared when this mode is activated. Use
this mode before returning the product to clients upon completion
of repair.

Procedure:

1. While pressing the [TONE MODE] and [2CH/A.DIRECT]

buttons, press the [POWER] button to turn on the main pow-
er.

2. The message “CLEARING” appears and the memories are re-

set to the default values.

3. When done, the message “CLEARED !” appears.

FLUORESCENT INDICATOR TUBE DISPLAY TEST

All fl uorescent segments are tested. When this test is activated, all
segments turn on at the same time, then each segment turns on one
after another.

Procedure:

1. While pressing the [TONE MODE] and [A.F.D.] buttons, press

the [POWER] button to turn on the main power.

2. All segments and all LEDs turn on.

SWAP MODE

The signal will be swap to all channel so that all speaker will
have sound output.

Procedure:

1. While pressing the [MEMORY/ENTER] and [2CH/A.

DIRECT] buttons, press the [POWER] button to turn on the
main power.

2. The message “SWAP MODE” appears. (No change while dis-

played.)

SOUND FIELD LOCK ON/OFF CHANGE MODE

All buttons operation on/off of the front panel is changed.

Procedure:

1. While pressing the [SPEAKERS (OFF/A/B/A+B)] and [MUSIC]

buttons, press the [POWER] button to turn on the main power.

2. Either the message “S.F. LOCK OFF” or “S.F. LOCK ON”

appears.

COMMAND MODE CHANGE MODE

The command mode of the remote-commander which this set re-
ceives can be changed.

Procedure:

1. While pressing the [2CH/A. DIRECT] button, press the [POW

ER] button to turn on the main power.

2. Either the message “C. MODE AV1” or “C. MODE AV2” ap-

pears. Select the desired mode.

XM FACTORY TEST MODE
(DA2400ES: US/DG920 only)

Mode to confi rm operation of XM. Doing display of ID of XM
antenna and output of audio signal that XM antenna generates, it is
confi rmed that there are no problems in the communication of the
XM antenna and the transmission of the audio signal.

Procedure:

1. The XM antenna was connected, while pressing the [TUNING

MODE] and [MOVIE] buttons, press the [POWER] button to
turn on the main power.

2. Whenever the [DISPLAY] button is pressed, the output of the

audio signal of 1 kHz L/R, 20 Hz L/R, 5 kHz L/R, muting, 1
kHz L and 1kHz R are switched.

SIRIUS FACTORY TEST MODE
(DA2400ES: US only)

Mode to confi rm operation of SIRIUS. Doing display of ID of
SIRIUS antenna and output of audio signal that SIRIUS antenna
generates, it is confi rmed that there are no problems in the com-
munication of the SIRIUS antenna and the tranmission of the audio
signal.

Procedure:

1. The SIRIUS antenna was connected, while pressing the [TUN-

ING MODE] and [A.F.D.] buttons, press the [POWER] button
to turn on the main power.

2. Whenever the [DISPLAY] button is pressed, the output of the

audio signal of 1 kHz L/R, 20 Hz L/R, 5 kHz L/R, muting, 1
kHz L and 1 kHz R are switched.