Test Mode - Sony hcd-gn1000d Service Manual

HCD-GN1000D
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[PANEL TEST MODE]
• This mode is used to check the fluorescent indicator tube, LEDs,
buttons, MASTER VOLUME knob, OPERATION DIAL knob,
model, destination, software version and VACS level.
Procedure:
[ENTER]
1. Press button,
x
simultaneously.
2. All LEDs and segments in fluorescent indicator tube are lighted up.
3. When you want to enter to the software version display mode,
[DISC 1]
press button. The model information appears on the
fluorescent indicator tube. Press
the destination information.
[DISC 1]
4. Each time button is pressed, the display changes from
MC version, GC version, SYS version, DVD version, ST
version, TC version, TA version, TM version in this order, and
returns to the model information display.
[DISC 3]
5. When button is pressed while the version numbers
are being displayed except model and destination, the date of
the software creation appears. When
again, the display returns to the software version display. When
[DISC 1]
button is pressed while the date of the software creation
is being displayed, the date of the software creation is displayed
in the same order of software version display.
[DISC 2]
6. Press button, the key check mode is activated.
7. In the key check mode, the fluorescent indicator tube displays
"K0 V0 J0".
Each time a button is pressed, "K" value increases. However,
once a button has been pressed, it is no longer taken into account.
"J" value increaes in the manner of 0,1,2,3... if
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DIAL]
knob is turned clockwise, or it decreases in the manner
[OPERATION DIAL]
of 0,9,8,7... if
clockwise.
"V" value increases in the manner of 0, 1, 2, 3 ... if
VOLUME]
knob is turned clockwise, or it decreases in the
[MASTER VOLUME]
manner of 0, 9, 8,7 ... if
counter-clockwise.
[DISC 3]
8. When button is pressed after all LEDs and segments
in fluorescent indicator tube light up, the fluorescent indicator
tube displays "VACS A+B F APC". A is conventional VACS
level which is triggered by signal level. B is Thermal VACS
level which is triggered by the temperature F is shown if the fan
is turned in high speed and vice-versa. C is VACS level which
is trigger by APVACS (Abuse Protection VACS).
The signal level, which will trigger VACS A is shown in the
center area of the fluorescent indicator tube.
[EX-CHANGE/DISC SKIP]
9. When
LEDs and segments in fluorescent indicator tube light up,
alternate segments in fluorescent indicator tube and LED would
[EX-CHANGE/DISC SKIP]
light up. If you press
another half of alternate segments in fluorescent indicator tube
and LEDs would light up. Pressing
button again would cause all LED and segments lights up.
10. To release from this mode, press three buttons in the same
manner as step 1, or disconnect the power cord.
[COMMON TEST MODE]
• This mode is used to check operations of the respective sections www
of Amplifier and Tape.
Procedure:
.
• To enter Common Test Mode
[ENTER]
1. Press x button,
simultaneously.
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SECTION 4

TEST MODE

[DISC 2]
button and button
[DISC 1]
button again to view
[DISC 3]
button is pressed
[OPERATION
knob is turned counter-
[MASTER
knob is turned
button is pressed after all
button again,
[EX-CHANGE/DISC SKIP]
x ao
y
i
[DISC 3]
button and button
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2. The DVD ring indicators, the line below DVD ring indicators
and TAPE A and B indicators flash synchronously on the
fluorescent indicator tube. The function is changed to TV.
* Check of Amplifier
1. Press [EQ BAND] button repeatedly until a message "GEQ MAX"
appears on the fluorescent indicator tube. GEQ increases to its
maximum.
2. Press [EQ BAND] button repeatedly until a message "GEQ MIN"
appears on the fluorescent indicator tube. GEQ decreases to its
minimum.
3. Press [EQ BAND] button repeatedly until a message "GEQ
FLAT" appears on the fluorescent indicator tube. GEQ set to
flat.
4. When the [MASTER VOLUME] knob is turned clockwise even
slightly, the sound volume increases to its maximum and a
message "VOLUME MAX" appears on the fluorescent indicator
tube.
5. When the [MASTER VOLUME] knob is turned counter-clockwise
even slightly, the sound volume decreases to its minimum and
a message "VOLUME MIN" appears on the fluorescent
indicator tube.
* Tape function
1. When a tape is inserted in Deck B and recording is started, the
function is changed to TV automatically. When [CD SYNC]
button is pressed during recording in function, ALC (Automatic
Logic Control) is turned on.
2. During recording, press m button will stop the recording
and the function is changed to TAPE B and rewind the tape in
Deck B until the recording start position and playback of the
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tape in Deck B is started. If [REC PAUSE/ START] button is
pressed for a pause and pressed again to resume recording during
recording time, when the tape is rewind, the tape will be rewind
until the position where the pause is applied.
* To release from Common Test mode
1. To release from this mode, press
2. The cold reset is enforced at the same time.
[COLD RESET]
• The cold reset clears all data including preset data stored in the
RAM to initial conditions.
Procedure:
1. Press button to turn on the system.
?/1
button, [ENTER] button and
2. Press
x
simultaneously.
3. The message "COLD RESET" appears on the fluorescent
indicator tube. Then, the fluorescent indicator tube becomes
blank for while, and the set is reset.
[VACS ON/OFF]
• This mode is used to switch ON and OFF the VACS (Variable
Attenuation Control System).
Procedure:
1. Press button to turn on the system.
?/1
2. Press button and
x
The message "VACS OFF" or "VACS ON" appears on the
u163 fluorescent indicator tube.
[TUNER STEP CHANGE] .
• The step interval of AM channels can be toggled between 9 kHz
and 10 kHz.
This mode is not available for Saudi Arabia model.
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
button.
?/1
?/1
[ILLUMINATION]
m button simultaneously.
co
9 9
2 8 9 9
button