Test Mode - Sony HCD-RV777D Service Manual

HCD-RV777D/RV888D/RV999D
[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 three buttons of x , PLAY MODE/TUNING MODE
and DISC 1 simultaneously.
2. The message "COLD RESET" is displayed, and the set is reset.
[Tuner Step Change]
• A step of AM channels can be changed over between 9 kHz and
10 kHz.
Procedure:
1. Press the `/1 button to turn the power ON, and set the function
to TUNER/BAND "AM".
2. Press the `/1 button to turn the power OFF.
3. Press two buttons of PLAY MODE/TUNING MODE and
`/1 simultaneously, and the message changes to "AM 9 k
STEP" or "AM 10 k STEP", and thus the channel step is changed
over.
[VIDEO/MD Function Change]
• Change of function VIDEO or MD (also the input level changes).
Procedure:
1. Press the `/1 button to turn the power ON.
2. Press two buttons of VIDEO/SAT and `/1 simultaneously,
and the message changes to "MD" or "VIDEO", and thus the
channel step is changed over.
3. Press the `/1 button to turn the power OFF.
[DISC TRAY LOCK]
The disc tray lock function for the antitheft of a demonstration disc
in the store is equipped.
Setting Procedure :
1. Press the ?/1 button to turn the power ON.
2. Press two buttons of x and Z simultaneously for five seconds.
3. The message "LOCKED" is displayed, and the tray is locked.
Releasing Procedure :
1. Press two buttons of x and Z simultaneously for five seconds.
2. The message "UNLOCKED" is displayed, and the tray is
unlocked.
Note: When the message "LOCKED" is displayed, the tray lock is
not released by turning power ON/OFF with the ?/1 button.
22
SECTION 4

TEST MODE

[GC Test Mode]
• This mode is used to check the fluorescent indicator tube, LEDs,
keyboard, volume and phones.
Procedure:
1. Press three buttons of x , PLAY MODE/TUNING MODE
and ENTER simultaneously.
2. LEDs and fluorescent indicator tube are all turned on.
3. Press two buttons of X and ENTER simultaneously. Whenever
these two buttons are pressed simultaneously, the mode changes
from Key check, Key count check, Headphones input check
and Volume check in this order.
4. When the Key check mode is entered, the message
"KEY :0 0 0" is displayed.
The keys that are assigned to the respective channels of the key
entry signal lines (KEY1, KEY2, KEY3) that are input to IC101
Display Controller on the PANEL board, are checked. While
you press the button, the number that corresponds to the key
shown in the table below, is displayed in the location of the
corresponding channel. (The ?/1 and DISPLAY buttons are
not included in these channels.)
Display
(KEY1)
1 EQ BAND
2 DISC 1
3 DISC 2
4 DISC 3
DISC SKIP/
5
EX-CHANGE
6
KARAOKE/
7
MPX
P-FILE
8
9 PRESET EQ
10 ENTER
5. When the Key count check mode is entered, the message
"KEYCN:T 0 1" is displayed.
Whenever the button is pressed, number in the first digit
increments (30). At the same time, only when the key is being
pressed, the KEY channel is displayed in the second digit.
(KEY1: 2, KEY2: 3, KEY3: 4)
(The buttons that are already pressed once and the buttons of
?/1 and DISPLAY are not counted.)
6. When the Headphones input check mode is entered, the message
"H_P OFF" or "H_P ON" is displayed, and depending on the
PHONES jack status.
7. When the Volume check mode is entered, the message
"VOLUME FLAT" or "VOLUME DOWN" or "VOLUME UP"
is displayed, and depending on the VOLUME status.
8. You can exit the Test Mode when you press two buttons of X
and ENTER simultaneously.
Left Center
(KEY2)
DVD
TUNER/BAND
TAPE A/B
GAME
VIDEO/SAT
Z
ILLUMINATION
PLAY MODE/
TUNING MODE
GAME
MIXING
CD SYNC
REC PAUSE/
START
Right
(KEY3)
GROOVE
SOUND FIELD
EFFECT
ON/OFF
TUNING +
gG
M
ALBUM +
m
ALBUM –
X
x
TUNING –