Test Mode - Sony HCD-ZUX9 Service Manual

[GC TEST MODE]
• This mode is used to check the fluorescent indicator tube,
LEDs, keys, [MASTER VOLUME] jog, [OPERATION DIAL]
jog, [X-ROUND] jog, model, destination and software version.
Procedure:
1. Press button to turn on the system.
@/1
button, [ENTER] button and [DISC 2] button
2. Press
x
simultaneously.
3. All LEDs and segments in fluorescent indicator tube are lighted
up. All LEDs are lighted. The POWER LED is lighted up in
red color if the system is turned off/on.
4. When you want to enter to the software version display mode,
press [DISC 1] button. The model and destination are displayed.
5. During model and destination information display, press [DISC
1] button. Each time [DISC 1] button is pressed, the fluorescent
indicator tube shows the version and the software creation date
of each category software in the following sequence: MC
version, GC version, SYS version, CD version, CDDM
version, CDMA version, CDMB version, BDA version, BDB
version, ST version, TC version, TA version, TM version, MM1
version, MM2 version (USB Micom) and return back to model
and destination information display.
6. Press [DISC 2] button, the key check mode is activated.
7. In the key check mode, the fluorescent indicator tube displays
"K 0 J0 V0 X0".
Each time a button is pressed, "K" value increases. However,
once a button has been pressed, it is no longer taken into
account.
"V" value increases in the manner of 0,1, 2, 3 ... if [MASTER
VOLUME] knob is turned clockwise, or it decreases in the
manner of 0, 9, 8,7 ... if [MASTER VOLUME] knob is turned
counterclockwise.
"J" value increases in the manner of 0,1, 2, 3 ... if [OPERATION
DIAL] knob is turned clockwise, or it decreases in the manner
of 0, 9, 8,7 ... if [OPERATION DIAL] knob is turned
counterclockwise.
"X" value increases in the manner of 0,1, 2, 3 ... if [X-ROUND]
knob is turned clockwise, or it decreases in the manner of 0,
9, 8,7 ... if [X-ROUND] knob is turned counterclockwise.
8. When [DISC SKIP/EX-CHANGE] button is pressed after all
LEDs and segments in fluorescent indicator tube light up,
alternate segments in fluorescent indicator tube and LEDs
would light up. If you press [DISC SKIP/EX-CHANGE] button
again, another half of alternate segments in fluorescent
indicator tube and LEDs would light up. Pressing [DISC SKIP/
EX-CHANGE] button again would cause all segments in
fluorescent indicator tube and LEDs light up.
9. To release from this mode, press three buttons in the same
manner as step 2, or disconnect the power cord.
[MC TEST MODE]
• This mode is used to check operations of the respective sections
of Amplifier and Tape.
Procedure:
• To enter MC Test Mode
button, [ENTER] button and [DISC 3] button
1. Press
x
simultaneously.
2. The disc number indicators and TAPE A and B indicators flash
on the fluorescent indicator tube. The function is changed to
VIDEO and the volume is changed to VOLUME MIN/MAX.
SECTION 4

TEST MODE

• Check of Amplifier
1. Press [EQ BAND/MEMORY] button repeatedly until a message
"GEQ MAX" appears on the fluorescent indicator tube. GEQ
increases to its maximum.
2. Press [EQ BAND/MEMORY] button repeatedly until a message
"GEQ MIN" appears on the fluorescent indicator tube. GEQ
decreases to its minimum.
3. Press [EQ BAND/MEMORY] button repeatedly until a message
"GEQ FLAT" appears on the fluorescent indicator tube. GEQ
is 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 counterclockwise
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 VIDEO automatically. When [CD-TAPE
SYNC] button is pressed during recording in function, ALC
(Automatic Logic Control) is turned on.
2. During recording, press
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 in Deck B is started. If the [TAPE 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. Execute this mode when
returning the set to the customer.
Procedure:
1. Press
@/1
2. Press
x
simultaneously.
3. "COLD RESET" appears on the fluorescent indicator tube.
After that, the fluorescent indicator tube becomes blank for a
while, and the system is reset.
[VACS ON/OFF]
• This mode is used to switch ON and OFF the VACS (Variable
Attenuation Control System).
Procedure:
1. Press
@/1
2. Press
x
The message "VACS OFF" or "VACS ON" appears on the
fluorescent indicator tube.
button will stop the recording
m/–
button.
@/1
button to turn on the system.
button, [ENTER] button, and
button to turn on the system.
button and [BEAM MODE] button simultaneously.
HCD-ZUX9
button
@/1
27