HT-K250, STR-VE250 - Sony Audio Service Manual (repair manual). Page 5

5

Before loading test mode. Be sure to bring in the entire sys-
tem (control center (STR-VE250) and subwoofer(SA-
WMSP250)). This product is system product, and the en-
tire system is needed to determine the location requiring
repair.

* The software version is displayed.
Procedure:
While depressing the  DISPLAY POSITION  button, press the  ?/1
button to turn on the main power. The destination and the software
version are displayed for four seconds.

* Liquid Crystal Display is tested when this test is activated.
Procedure:
While depressing the  DISPLAY POSITION  and the  INPUT SELECTOR
buttons simultaneously, press the  ?/1  button to turn on the main power.
1. All segments turn on (Vertical display).

;

;

2. Press the  SOUND FIELD v  button, confirm the display.

;

;

3. Press the  SOUND FIELD v  button, confirm the display.

4. Press the  SOUND FIELD v    button, all segments turn on

(Holizontal display).

;

;

5. Press the  SOUND FIELD v  button, confirm the display.

;

;

6. Press the  SOUND FIELD v  button, confirm the display.

7. Every pressing of the  SOUND FIELD v  button turns on each

segment one after another in the same order.
(not only the  SOUND FIELD v    button, but also the
SOUND FIELD V button can be used.)

8. To exit from this mode, press the  ?/1  button.

* All preset contents are cleared when this mode is activated.
Procedure:
While depressing the  MUTING  and the  INPUT SELECTOR
buttons simultaneously, press the  ?/1  button to turn on the main
power. The message “INITIAL” is displayed for four seconds and
initialization is performed.

* 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 depressing the  VOL/PRESET TUNING  and the

SOUND FIELD v  buttons, press the  ?/1  buttonS to turn on
the main power.

2. The message “SURR.CLR” appears and initialization is

performed.