STR-DE375 - Sony Audio Service Manual (repair manual). Page 6

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* All preset contents are reset to the default setting.
* Procedure:

While depressing the  VIDEO  and the  CD  buttons simultaneously,
press the power  ?/1   button to turn on the main power.  The
message “FACTORY” appears and the present contents are reset
to the default values.

* All preset contents are cleared when this mode is activated.  Use

this mode before returning the product to clients upon completion
of repair.

* Procedure:

While depressing the  TUNER  and the  MD/TAPE  buttons
simultaneously, press the power  ?/1  button to turn on the main
power.  The message “INITIAL” appears and initialization is
performed.

* 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  TV/SAT  and the  CD  buttons simultaneously,
press the power  ?/1  button to turn on the main power.

1. All segments turn on.

SET UP, SOUND FIELD LED turn on.

2. Press the  VIDEO  button, confirm display

SET UP, NAME LED turn on.

3. Press the  VIDEO  button, confirm display

SOUND CONTROL LEVEL, SOUND CONTROL SUR and
SOUND FIELD LED turn on.

4. Press the  VIDEO  button, All segments turn off.

5. Every pressing of the  VIDEO  button turns on each segment

one after another in the following order.
(Not only the  VIDEO  button, but also the other buttons such as
 TV/SAT ,  MD/TAPE ,  CD ,  TUNER  can be used.)

* 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  TUNING+  button or the  PRESET+  button,
press the power  ?/1  button to turn on the main power.  Either
the message “AM 9 k STEP” or “AM 10 k STEP” appears.  Select
the desired step.

* For Canadian/E model only

* The software version is displayed.
* Procedure:

While depressing the  TUNER  and the  VIDEO  buttons
simultaneously, press the power  ?/1  button to turn on the main
power.  The model name, destination and the software version are
displayed.

* This mode is installed in the Europe models only. When this mode

is used, the receiver scans the broadcasts that can be received by
tuner, and sets up the broadcasts. Be sure to start scanning after
connecting the antenna.

* Procedure:

Check that the antenna is connected. Press the power  ?/1  button
while pressing the  MEMORY  button to turn on the power. The
message “Autobetical select” appears and scanning starts by tuner.

* 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 ON/OFF  button, press
the power  ?/1  button to turn on the main power.  The message
“SURR CLR” appears and initialization is performed.

* Button check
* Procedure:

While depressing the  MD/TAPE  and the  CD  buttons
simultaneously, press the power  ?/1  button to turn on the main
power.
“RES 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 “RES 00 KEY”
appears.
When  MASTER VOLUME  is rotated in clockwise direction,
“VOL MIN”, “VOL 1” to “VOL 30”, “VOL MAX” appear.