STR-DE885, STR-DE985 - Sony Audio Service Manual (repair manual). Page 11

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11
STR-DE885/DE985
SECTION 3
TEST MODE
FACTORY PRESET MODE
* All preset contents are reset to the default setting.
* Procedure:
While depressing the [SET UP] and the [DIMMER] buttons simul-
taneously, press the power  
?/1
  button to turn on the main power.
The message “TUNER FACTORY PRESET” appears and the
present contents are reset to the default values.
AM CHANNEL STEP 9 KHZ/10 KHZ
SELECTION MODE
* Either the 9 kHz step or 10 kHz step can be selected for the AM
channel step.
* Procedure:
Set the FUNCTION to AM.  Turn off the main power.
While depressing the [PRESET TUNING+] button, press the power.
 
?/1
  button to turn on the main power.  Either the message 9 k
STEP or 10 k STEP appears.  Select the desired step.
FLUORESCENT INDICATOR TUBE TEST 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:
While depressing the [A.DEC] and the [DIMMER] buttons simul-
taneously, press the power  
?/1
  button to turn on the main power.
1. All segments turn on.
[VIDEO 2], [SETUP], [DVD/LD], [MULTI CHANNEL DECODING]
(blue) and [MULTI/2CH ANALOG DIRECT] LEDs turn on.
2. Press the [A.DEC] or the [DIMMER] button, confirm display.
(Display)
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:
While depressing the [SOUND FIELD MODE] button, press the
power  
?/1
    button to turn on the main power.  The message
“S.F Initialize” appears and initialization is performed.
VERSION DISPLAY MODE
* The version is displayed.
* Procedure:
While depressing the [MUTING]  and the [DIMMER]  buttons
simultaneously, press the power  
?/1
  button to turn on the main
power.  The massage “VERSION” and the version number are
displayed.
KEY CHECK MODE
* Button check
* Procedure:
While depressing the [LEVEL] and the [DISPLAY] buttons simul-
taneously, press the power  
?/1
  button to turn on the main power.
“Rest 36 Key” appears.
Every pressing of any button other than  
?/1
  counts down the
buttons.  The buttons which are already counted once are not
counted again.  When all buttons are pressed “Rest 00 Key”
appears.
[SOUND FIELD MODE], [VIDEO 1], [VIDEO 3], [SOUND FIELD
2CH], [SURR] and [A.DEC] LEDs turn on.
3. Press the [A.DEC] or the [DIMMER] button, confirm display.
(Display)
[Digital Cinema Sound], [TV/SAT], [LEVEL], [EQ], [CUSTOMIZE]
and [A.DEC] LEDs turn on.
4. Press the [A.DEC] or the [DIMMER] button, All segments turn
off. ALL LEDs turn off.
5. Every pressing of the [A.DEC] or the [DIMMER] button turns on
each segment and LED one after another in the same order.
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