STR-DN1000 - Sony Audio Service Manual (repair manual). Page 11

TUNER  AM  STEP  CHANGE  MODE 
(US, Canadian, Chilean, Peruvian and Australian models 
only)
Either the 9 kHz step or 10 kHz step can be selected for the AM 
channel step.
Procedure:
1.  Press the [

?/1

] button to turn on the main power.

2.  Turn the [– INPUT SELECTOR]/[INPUT SELECTOR +] but-

tons to select the “AM TUNER”.

3.  Press the [

?/1

] button to turn off the main power.

4.  While pressing the [DISPLAY] button, press the  [

?/1

] 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 [

?/1

] button 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 [MUTING] and [SPEAKERS] buttons, 

press the [

?/1

] button to turn on the main power.

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 [MUTING] and [DISPLAY] buttons, press 

the [

?/1

] button to turn on the main power.

2.  All segments and all LEDs turn on. Each time [DISPLAY] but-

ton to change as follow all on, test pattern 1, test pattern 2, all 
off, all on in this order.

SWAP  MODE
The signal will be swap to all channel so that all speaker will have 
sound output.
Procedure:
1.  While pressing the [MUSIC] and [2CH/A.DIRECT] buttons, 

press the [

?/1

] button to turn on the main power.

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

played).

COMMAND  MODE  CHANGE  MODE
The command mode of the remote-commander which this set re-
ceives can be changed.
Procedure:
1.  While pressing the [MUTING] and [MUSIC] buttons, press 

the [

?/1

] button to turn on the main power.

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

pears. Select the desired mode.

SIRIUS  FACTORY  TEST  MODE
(US, Canadian models 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 commu-
nication of the SIRIUS antenna and the transmission of the audio 
signal.
Procedure:
1.  The SIRIUS antenna was connected, while pressing the 

[DISPLAY] and [2CH/A.DIRECT] buttons, press the [

?/1

] 

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.