Test Mode - Aiwa CX-JV4 Service Manual

[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. In the standby status, while pressing the
[POWER]
key.
2. The set is reset, then becomes standby status.
[GC TEST MODE]
Procedure:
[POWER]
1. Press the key to turn the power on.
2. While pressing the x key, press the
onds.
3. It change displays in order of model type, version and suffix at
2 seconds interval, then the display is back to normal status.
[AMP TEST MODE]
Procedure:
1. In the status where AC plug is disconnected, while pressing
[VIDEO/AUX]
the key, connect the AC plug to turn the power
on. Then enter the AMP test mode and display "AMP TEST".
[VOLUME]
2. If turn the knob clockwise, it displays "VOLUME
MAX", and if turn the knob counterclockwise, it displays
"VOLUME 0".
[TREBLE] [BASS]
3. If the and
counterclockwise, it change displays in order of "EQ MAX",
"EQ MIN" and "EQ FLAT".
4. To release from this mode, disconnect the AC plug and turn
the power off.
[DISC TRAY LOCK]
Procedure:
[POWER]
1. Press the key to turn the power on.
2. While pressing the key, press the
x
5 seconds.
3. The message "LOCKED" is displayed and the tray is locked.
(Even if exiting from this mode, the tray is still locked)
4. To release this lock, while pressing the
[ OPEN/CLOSE]
Z key for 5 again.
5. The message "UNLOCKED" is displayed and the tray is un-
locked.
[CD REPEAT 5 LIMIT CANCEL MODE]
• Number of repeat for CD playback is 5 times when the repeat
mode is "REPEAT". This mode enables CD to repeat playback
for limitless times.
Procedure:
[POWER]
1. Press the key to turn the power on.
2. In the repeat on status, while pressing the
[CD]
key to enter the CD repeat 5 limit cancel mode and re-
peat mark blinks on the fluorescent indicator tube.
3. To release this mode, press the
off.
[TUNER TEST MODE]
Procedure:
1. In the status where AC plug is disconnected, while pressing
[POWER]
two keys of and
plug to turn the power on.
2. The massage "TUN TEST" is displayed on the fluorescent in-
dicator tube, and tuner test mode is set.
SECTION 4

TEST MODE

key, press the
x
[POWER]
key for 5 sec-
knobs are turned clockwise or
[ OPEN/CLOSE]
Z key for
x key, press the
key, press the
x
[POWER]
key to turn the power
simultaneously, connect the AC
x
[CHANGE-OVER OF AM TUNER STEP BETWEEN
9 kHz AND 10 kHz]
• A step of AM channels can be changed over between 9 kHz and
10 kHz.
Procedure:
[POWER]
1. Press the key to turn the power on.
[TUNER]
2. While pressing the
the display on fluorescent indicator tube changes to "AM 530
kHz" (10 kHz step) or "AM 531 kHz" (9 kHz step), and thus
the channel step is changed over.
[FUNCTION CHANGE MODE]
• Select either TV, VIDEO or AUX (MD) of the external function
input.
Procedure:
[POWER]
1. Press the key to turn the power on.
[VIDEO/AUX]
2. While pressing the
3. Each time this operation is operated, it change displays in or-
der of "TV", "VIDEO" and "AUX".
[TC (TAPE CASSETTE) TEST MODE]
• This mode can be used for operation check of zero return sec-
tion and automatic REC/PLAY section.
Procedure:
1. In the status where AC plug is disconnected, while pressing
[TAPE]
the key, connect the AC plug to turn the power on.
2. The massage "TC TEST" is displayed on the fluorescent indi-
cator tube, and TC (tape casette) test mode is set.
Zero Return Section:
Press the or key, tape is rewound to the position of
M m
counter zero.
Automatic REC/PLAY Section:
[REC]
Press the key
r
Tape is rewound to the position of counter zero
r
Tape recording starts
r
Press the key
x
r
Tape recording stops
r
Tape is rewound to the position of counter zero
r
Tape playback starts
CX-JV4
[POWER]
key, press the key to
[POWER]
key, press the key.
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