Test Mode - Sony HCD-GNV99D Service Manual

HCD-GNV99D/GNV111D
[GC TEST MODE]
• This mode is used to check the fluorescent indicator tube, LEDs,
keys, VOLUME jog, OPERATION DIAL jog, AMS jog, X-
ROUD jog (for GNV111D only) 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.
All LEDs are lighted up in red color, if the system is turned on,
the POWER LED is lighted up in green color.
3. When you want to enter the software version display mode,
[DISC1]
press button. The model and destination are displayed.
[DISC1]
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 MC version display.
[DISC3]
5. When button is pressed while the version numbers are
being displayed except model and destination, the date of the
software creation appear. When
the display returns to the software version display. When
[DISC1]
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.
[DISC2]
6. Press button, the key check mode is activated.
7. In the key check mode, the fluorescent indicator tube displays
"K0 J0 V0 E0 X0".
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 increases in the manner of 0,1, 2, 3 ... if
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
knob is turned clockwise, or it decreases in the manner of 0, 9,
[VOLUME]
8,7 ... if knob is turned counter-clockwise.
"E" value increases in the manner of 0, 1, 2, 3 ... if
knob is turned clockwise, or it decreases in the manner of 0, 9,
8,7 ... if knob is turned counter-clockwise.
.>
"X" value increases in the manner of 0, 1, 2, 3 ... if
JOG]
knob is turned clockwise or it decreases in the manner of
[X-ROUND JOG]
0, 9, 8, 7 ... if
(For GNV111D only)
[DISC3]
8. When button is pressed after all LEDs and segments
in fluorescent indicator tube light up, the fluorescent indicator
tube displays "VACS A+B APCC". A is VACS level which is
trigger by signal level, B is VACS level which is trigger by
temperature and CC 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 would light up.
[EX-CHANGE/DISC SKIP]
If you press
half of alternate segments in fluorescent indicator tube would
[EX-CHANGE/DISC SKIP]
light up. Pressing
would cause all segments lights up.
10. To release from 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.
22
SECTION 4

TEST MODE

[DISC2]
button and button
[DISC3]
button is pressed again,
[OPERATION
knob is turned counter-
[VOLUME]
.>
[X-ROUND
knob is turned counterclockwise.
button is pressed after all
button again, another
button again
Procedure:
• To enter MC Test Mode
[ENTER]
1. Press button,
x
simultaneously.
2. The DVD ring indicators and TAPE A and B indicators flash 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 increases 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 [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 [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, turn
m M
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 tape B is started. If the [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 MC 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:
button, [ENTER] button, and
1. Press
x
simultaneously.
2. "COLD RESET" appears in 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 the set ON.
?/1
[ILLUMINATION]
2. Press button and
x
The message "VACS OFF" or "VACS ON" appears on the
fluorescent indicator tube.
[DISC3]
button and button
knob counterclockwise will
button.
?/1
button
?/1
button simultaneously