Test Mode - Sony HCD-RV7 Service Manual

HCD-RV7/RV8
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[GC TEST MODE]
• This mode is used to check the fluorescent indicator tube, LED,
model, destination software version, volume, key and VACS
level.
Procedure:
[ENTER]
1. Press three buttons ,
x
2. LEDs and fluorescent indicator tube are all turned on.
3. When you want to enter the software version display mode,
[DISC 1]
press . The model and destination are displayed.
[DISC 1]
4. Each time is pressed, the display changes starting
from MC version, GC version, CD version, CDDM version,
CDMA version, CDMB version, BDA version, BDB version,
ST version, TA version, TM version and TC version in this order,
and returns to the MC version display.
[DISC 3]
5. When is pressed while the version numbers are being
displayed except model and destination, year, month and day of
the software creation appear. When
display returns to the software version display. When
pressed while year, month and day of the software creation are
being displayed, the year, month and day of creation of the software
versions are displayed in the same order of version display.
[DISC 2]
6. Press button, and the key check mode is activated.
7. In the key check mode, the fluorescent indicator tube displays
"K0 V0". Each time a button is pressed, "K" value increases.
However, once a button is pressed, it is no longer taken into
account.
"V" value increases like 1, 2, 3 ... if rotating
in "+" direction, or it decreases like 0, 9, 8 ... if rotating in
"–" direction.
[DISC 3]
8. Also when is pressed after lighting of all LEDs and
fluorescent indicator tubes, value of VACS level appears.
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9. To release this mode, press three buttons in the same manner as
step 1, or disconnect the power cord.
[MC TEST MODE]
• This mode is used to check operations of the respective sections
of Amplifier, Tuner, and Tape.
Procedure:
* To enter MC Test Mode
[ENTER]
1. Press three buttons of ,
x
2. The messages MUSIC, MOVIE, GAME and P FILE flash on
the fluorescent indicator tube.
The input FUNCTION is changed to VIDEO.
* Check of Amplifier
1. When button is pressed, GEQ increases to its maximum and
v
a message "GEQ MAX" appears.
2. When button is pressed, GEQ decreases to its minimum and
V
a message "GEQ MIN" appears.
3. When or button is pressed, GEQ is set to flat and a
b B
message "GEQ FLAT" appears.
[VOLUME]
4. When the knob is turned clockwise even slightly,
the sound volume increases to its maximum and a message
"VOLUME MAX" appears for two seconds, then the display
returns to the original display.
[VOLUME]
5. When the knob is turned counter-clockwise even
slightly, the sound volume decreases to its minimum and a
message "VOLUME MIN" appears for two seconds, then the
display returns to the original display.
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* Check of clock frequency
1. To check the frequency of clock used to run the time in the unit,
.
the clock output is available at IC501 pin el (CLOCK-OUT)
on the MAIN board only during MC test mode.
2. The frequency is 32.768 kHz or so.
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SECTION 4

TEST MODE

[DISC 2]
, and simultaneously.
[DISC 3]
is pressed again, the
[DISC 1]
is
[VOLUME]
knob
[DISC 3]
and simultaneously.
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* Tape function
1. When a tape is inserted in tape deck B and recording is started,
the input source function selects VIDEO automatically.
[CD SYNC HI-DUB]
When
in function, ALC is turned on.
2. When button is pressed to stop recording, the tape deck B is
x
selected and tape is rewound, tape is rewound using
tape is stops at around the record-starting position and playback
of the recorded portion of the tape is started. If the
START]
button is pressed for a pause and pressed again to resume
recording, when tape deck B is rewound, tape deck B will be
rewound until the position where the pause is applied.
[CD SYNC HI-DUB]
3. When
of tape deck B, either normal speed or high speed can be selected
by this button.
* AMS Test Mode
1. Select the function "TAPE A" or "TAPE B".
2. Select the loop and relay by pressing the
Insert a test tape AMS-110A or AMS-120 to selected tape deck.
[SPECTRUM]
3. Press the button to enter the AMS test mode.
4. After a tape is rewound first, the FF AMS is checked, and the
mechanism is shut off after detecting the AMS signal twice.
5. Then the REW AMS is checked and the mechanism is shut off
after detecting the AMS signal twice.
6. When the check is complete, a message of either OK or NG
appears.
* To release MC Test mode.
1. To release this mode, press the
2. The cold reset is enforced at the same time.
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[COLD RESET]
• The cold reset clears all data including preset data stored in the
RAM to initial conditions. Execute this mode when returning
the set to the customer.
Procedure:
[ENTER]
1. Press three buttons ,
x
2. The fluorescent indicator tube becomes blank instantaneously,
and the set is reset.
[VACS ON/OFF MODE]
• This mode is used to switch ON and OFF the VACS (Variable
Attenuation Control System).
Procedure:
1. Press button to turn the set ON.
?/1
[ENTER] [GAME MIXING]
2. Press the and
The message "VACS OFF" or "VACS ON" appears.
[TUNER STEP CHANGE]
(EXCEPT Saudi Arabia model)
• A step of AM channels can be changed over between 9 kHz and
10 kHz.
Procedure:
1. Press button to turn the set ON.
?/1
2. Select the function "TUNER", and press
button to select the BAND "AM".
3. Press button to turn the set OFF.
?/1
[ENTER]
4. Press and
?/1
display of fluorescent indicator tube changes to "AM 9k STEP"
co
or "AM 10k STEP", and thus the channel step is changed over.
.
9 4 2 8
button is pressed during recording
button,
– m
[REC PAUSE/
button is pressed during playback
[DIRECTION]
button.
button.
?/1
0 5 8 2 9 9 4 2 8
, and simultaneously.
?/1
buttons simultaneously.
[TUNER/BAND]
m
buttons simultaneously, and the
9 9
9 9