STR-DA2ES, STR-DB1080 - Sony Audio Service Manual (repair manual). Page 11

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11
STR-DA2ES/DB1080
SECTION  4
TEST  MODE
TUNER FACTORY PRESET MODE
All preset contents are reset to the default setting.
Procedure:
1. While pressing the 
[DIMMER]
 and 
[SET UP]
 buttons, press
the 
I
/1
button to turn on the main power.
2. The message “TUNER FACTORY PRESET” appears and the
present contents are reset to the default values.
TUNER AM STEP CHANGE (9 kHz/10 kHz) MODE
(Except STR-DB1080: AEP and UK models)
Either the 9 kHz step or 10 kHz step can be selected for the AM
channel step.
Procedure:
1. While pressing the 
[PRESET TUNING +]
  or 
[TUNING +]
button, press the  
I
/1
button to turn on the main power.
2. Either the message “AM 9 kHz Step” or “AM 10 kHz Step”
appears. Select the desired step.
TUNER AUTOBETICAL TUNING MODE
(STR-DB1080: AEP and UK models)
Procedure:
1. While pressing the 
[MEMORY]
 button, press the  
I
/1
button
to turn on the main power.
2. The message “Autobetical select” appears and scans and stores
all the FM and FM RDS stations in the broadcast area.
3. When done, the message “Autobetical finished” appears.
SOUND FIELD CLEAR MODE
The preset sound field 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 
[MODE +]
 button, press the
I
/1
button to
turn on the main power.
2. The message “S.F Initialize” appears and initialization is
performed.
ALL CLEAR 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 
[AUTO DEC.]
 and 
[MODE +]
 buttons, press
the 
I
/1
button to turn on the main power.
2. The message “MEMORY CLEARED !” appears and the
memories are reset to the default values.
MENU EXPAND FOR DEBUG MODE
Procedure:
1. Press the 
I
/1
button to turn on the main power.
2. Press two buttons of 
[CINEMA STUDIO EX]
 and 
[ENTER]
simultaneously.
3. The message “MENU SPECIALIZED !” appears and menu
expand turn on.
4. Press two buttons of 
[CINEMA STUDIO EX]
 and 
[ENTER]
simultaneously once again.
5. The message “MENU SPECIALIZED OFF” appears and menu
expand turn off.
FLUORESCENT INDICATOR TUBE PATTERN
CHECK MODE
All fluorescent 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 
[DISPLAY]
 and 
[ENTER]
 buttons, press
the
I
/1
button to turn on the main power.
2. All segments turn on at the same time.
SWAP MODE
Procedure:
1. While pressing the 
[DISPLAY]
 and 
[2CH ST]
 buttons, press
the
I
/1
button to turn on the main power.
2. The message “SWAP MODE !” appears and swap mode turn
on.
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