MHC-W770AV, STR-W770 - Sony Audio Service Manual (repair manual). Page 5

Press the REPEAT, ENTER/NEXT and SURROUND buttons
simultaneously.
1.

All FL segments and all LEDs turn on.

2.

To access the microprocessor information, press the P FILE
key.  Each pressing of the P FILE key advances the display on
the FL tube in the following sequence.

3. To check the encoder, press the MUSIC key.  The following display
appears on the FL tube.
"K

0

J

0

V

0"

The number after K indicates the number of times that the key is
pressed.  The key which was pressed in the past, is not counted.
The key which is pressed hereafter is counted.  Pressing any key
increases the number after K.

The number after J indicates the number of rotations that the JOG
dial is rotated.  Turning the JOG dial clockwise increases the number
after J.  Turning the JOG dial counter-clockwise decreases the
number after J.

The number after V indicates the number of rotations that the
VOLUME dial is rotated.  Turning the VOLUME dial clockwise
increases the number after V.  Turning the VOLUME dial counter-
clockwise decreases the number after V.

To exit this mode, perform the "Cold Reset" (reset clearing memory)
as described below.

Press the REPEAT, ENTER/NEXT and CLOCK TIMER SET
buttons simultaneously while the main power is on.
1.

Sound volume display segment starts blinking.

2.

The tuning enters the PRESET mode.

3.

Rotating the VOLUME control clockwise increases the volume
level to maximum.
Rotating the VOLUME control counter-clockwise decreases
the volume level to minimum.

4.

Pressing the MUSIC key decreases the equalizer curve to
minimum and "EQ CHECK" appears on the display.
Pressing the MOVIE key increases the equalizer curve to
maximum.
Pressing the GAME key makes the equalizer curve flat.

5.

Pressing any of the DBFB, GROOVE or SURROUND key
disappears "EQ CHECK" on the display.

To exit this mode, perform the "Cold Reset" (reset clearing memory)
as described below.

1.

CD aging mode
To execute the CD aging, set the three discs to the CD tray and
set the function to CD. REPEAT, ENTER/NEXT and LOOP
buttons simultaneously. The CD aging mode starts and the disc
calendar starts blinking.

2.

Tape aging mode
To execute the tape aging, set the two tapes to the tape A and B
drives.  Set the function to TAPE.  Press the REPEAT,  ENTER/
NEXT and LOOP buttons simultaneously. Press the A forward
key to start the tape aging mode.  "AGING" appears on the
display.

Turn on the main power. Press the REPEAT, ENTER/NEXT and
KARAOKE PON/MPX buttons simultaneously.
VACS toggles between ON and OFF.

Turn on the main power.  Press the EDIT, ENTER/NEXT and
KARAOKE PON/MPX buttons simultaneously.
VACS level appears on the display.

Turn on the main power. Press the PLAY MODE and POWER
buttons simultaneously.
The main power is turned off and LOCK appears on the display.

Turn on the main power.  Set the function to TUNER.  Select MW
band from the present tuning.
Turn off the main power.  Press the ENTER/NEXT and POWER
buttons simultaneously.  The main power is turned on and the
changed step appears on the display.

Press the FUNCTION and POWER buttons simultaneously while
the main power is on.  When the function is set to VIDEO 1, the
function is changed to MD and MD appears on the display.
When the function is set to MD, the function is changed to VIDEO
1 and VIDEO 1 appears on the display.

Press the REPEAT, ENTER/NEXT and DISPLAY buttons
simultaneously at any time.  The system is reset while clearing
memory.

Press the REPEAT, ENTER/NEXT and  TIMER SELECT buttons
simultaneously at any time.  The system is reset without clearing
memory.

STR microprocessor version number

HCD microprocessor version number

VCD microprocessor version number (VCD model only)

Model name

Destination 

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