Test Mode - Sony HCD-GTX999 Service Manual

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Note: Never execute the item because the set might not operate
normally when the item being written, "Not used for the
servicing." in each item is executed.
COLD RESET
The cold reset clears all data including preset data stored in the
memory to initial conditions. Execute this mode when returning
the set to the customer.
Procedure:
1. In the standby status, press the [
on.
2. Press three buttons of [
neously.
3. The set enters standby status.
COMMON TEST MODE
Procedure:
1. Press the [ ] button to turn the power on.
?/1
2. Press three buttons of [
ously.
3. It enters the common test mode and the "PLAY SLEEP" seg-
ment on the fl uorescent indicator tube blinks.
4. Each time the [VOLUME] dial is turned, "VOLUME MIN"
and "VOLUME MAX" are displayed.
5. Each time the [EQ] button on the remote commander is
pressed, "TONE MAX", "TONE MIN" and "TONE FLAT"
are displayed.
6. To release from this mode, press the [
power off.
PANEL TEST MODE
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L 13942296513
Enter The Panel Test Mode
Procedure:
1. In the standby status, press the [
on.
2. Press three buttons of [ILLUMINATION], [
taneously.
3. When the panel test mode is activated, LEDs and segments of
the fulorescent indicator tube are all turned on.
Version Check
Procedure:
1. In the panel test mode (all LEDs and segments of the fulores-
cent indicator tube are turned on), press the [BACK] button.
2. On the fulorescent indicator tube, model name, destination,
MC version and its last updated date are displayed.
3. Each time [BACK] button is pressed, the display changes start-
ing from MC, GC, GENE, GNS, HDD, USB, CD, CDMA,
CDMB, ST, TA and TM version this order, and returns to the
MC version display.
4. To release from this mode, press three buttons of [ILLUMINA-
TION], [ ], and [
x
Key Test Mode
Procedure:
1. In the panel test mode (all LEDs and segments of the fulores-
cent indicator tube are turned on), press the [ENTER] button.
2. The message "KEY 0/35 VOL 0" displayed. Whenever any
buttons are pressed and the [VOLUME] dial is turned, the val-
ue is changed. All key pressed, display becomes "KEY 35/35"
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and "KEY OK".
3. To release from this mode, press three buttons of [ILLUMINA-
TION], [ ], and [
x
.
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] button to turn the power
?/1
], [ENTER] and at last [
x ?/1
], [GROOVE], and [
x Z
] button to turn the
?/1
] button to turn the power
?/1
], and [
x
] simultaneously.
Z
x ao
y
] simultaneously.
Z
i
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SECTION 4

TEST MODE

8
TUNER STEP CHANGE
The AM tuning interval can be changed over 9 kHz or 10 kHz.
Procedure:
1. Press the [
2. Press the [TUNER/BAND] button to select TUNER (AM)
function.
3. Press the [
4. After pressing the [DISPLAY] button while pressing the
[TUNE + M L] button, press the [
5. It turns power on and display "9k STEP" or "10k STEP", and
thus the tuning interval is changed over.
] simulta-
CD SHIP MODE
This mode can run the CD sled motor optionally. Use this mode,
for instance, when cleaning the optical pick-up.
Procedure:
1. Press the [
2. Confi rm there is no disc in all trays.
] simultane-
3. Press the [FUNCTION] button to select CD function.
4. Press two buttons of [OPTIONS] and [
5. Set to the CD ship mode. (chucking on)
6. After blink "STANDBY", "LOCK" is displayed, disconnect
the AC plug.
CD TRAY LOCK
This mode is for the antitheft of CD disc in shop. (not for trans-
port)
Procedure:
1. Press the [
2. Press the [FUNCTION] button to select CD function.
3. Insert a disc.
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4. While pressing the [
seconds.
5. The message "LOCKED" is displayed and the disc tray is
locked. (Even if exiting from this mode, the disc tray is still
] simul-
Z
locked)
6. If press the [
is displayed and can not eject the disc.
7. To release this lock, while pressing the [
[ ] button for 5 seconds again.
Z
8. The message "UNLOCKED" is displayed and the disc tray is
unlocked.
VACS ON/OFF MODE
VACS on/off change mode.
Procedure:
1. Press the [
2. Press three buttons of [TUNING − l m], [CHORUS],
and [ ] simultaneously.
M
3. VACS mode on. (not displayed)
To VACS mode off, do the step 2 again.
VACS DISPLAY ON/OFF MODE
VACS mode state display.
Procedure:
1. Press the [
2. Press three buttons of [TUNING − l m], [CHORUS],
and [ ] simultaneously.
m
3. The message "VACS ∗ AC−−" or "VACS OFF AC−−" is dis-
played.
∗: 1 to 6 (VACS level)
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−−: power supply frequency
4. To release from this mode, do the step 2 again.
.
HCD-GTX999
2 9 9 4 2 8
] button to turn the power on.
?/1
] button again to turn the power off (standby).
?/1
?/1
] button to turn the power on.
?/1
?/1
] button to turn the power on.
?/1
1 5 0 5 8 2 9 9 4
] button, press the [
x
] button to eject the disc, the message "LOCKED"
Z
] button to turn the power on.
?/1
] button to turn the power on.
?/1
m
co
9 9
] button.
] simultaneously.
2 8 9 9
] button for more 5
Z
] button, press the
x
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