STR-DN610 - Sony Audio Service Manual (repair manual). Page 8

TUNER  AM  STEP  CHANGE  MODE 
(Canadian model 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 “9K STEP” or “10K STEP” appears, select 

the desired step.

VACUUM FLUORESCENT DISPLAY TEST MODE
* All fl uorescent segments are tested.

When this test is activated, all segments light on at the same time, 
then each segment lights on one after another.

* Procedure:

While depressing the [INPUT SELECTOR –] and the [DIMMER] 
buttons simultaneously, press the [

?/1

] button to turn on the 

main power.

1.  ALL segments light on.

2.  Press the [DISPLAY] button, confi rm display.

3.  Press the [DISPLAY] button, confi rm display.

4.  Press the [DISPLAY] button, all segments light off.

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 depressing the [MUSIC] button, press the [

?/1

] button 

to turn on the main power.

2.  The message “SF. CLEAR” appears for a moment and 
 

initialization is performed.

SOFTWARE VERSION DISPLAY MODE
* The software version is displayed.
* Procedure:
1. While depressing the [INPUT SELECTOR +] and the 

[DISPLAY] buttons  simultaneously, press the [

?/1

] button to 

turn on the main power.

2.  The model name, destination and the software version are 

displayed for a moment.

KEY CHECK MODE
* Button check
* Procedure:
1. While depressing the [INPUT SELECTOR –] and the 

[MUTING] buttons simultaneously, press the [

?/1

] button to 

turn on the main power.

2.  Either the message “REST 11” appears.

  Every pressing of any button other than the [

?/1

] counts down 

  the buttons. The buttons which are already counted once are 
  not counted again. When all buttons are pressed key check
  mode will ends.

SWAP ALL MODE
* The signal will be swap to all channel so that all speaker will 

have sound output.

* Procedure:
1. While depressing the [INPUT SELECTOR +] and the 

[MOVIE] buttons simultaneously, press the [

?/1

] button to 

turn on the main power.

2.  “SWAP. MODE” appears.

SHIPMENT MODE
* All preset contents are reset to the default setting.
* Procedure:
1. While depressing the [INPUT SELECTOR +] and the 

[DIMMER] buttons simultaneously, press the power [

?/1

] 

button to turn on the main power.

2.  The message “CLEARING” appears.
3.  After a few seconds, “CLEARED” appears and switch off the 

set.

PROTECTOR AUTO OFF
* To disable auto off after protector occur.
* Procedure:
1.  While depressing the [INPUT MODE] and the [A.F.D] but-

tons simultaneously, press the [

?/1

] button to turn on the 

main power.

2.  “ PROTECT” appears.