Aiwa CX-JT8, Service Manual

Page: 2 / 46

18
CX-JT8
SECTION 4
TEST MODE
[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 the
[POWER]
key to turn the power ON.
2. Press three keys of x ,
[ENTER]
and
[POWER]
simultaneously.
3. The message “RESET” is displayed on the fluorescent indicator
tube momentarily, then becomes standby states.
[TUNER STEP CHANGE-OVER]
(Except AEP, UK and CIS models)
• A step of AM channels can be changed over between 9 kHz and
10 kHz.
Procedure:
1. Press the
[POWER]
key to turn the power ON.
2. Press the
[TUNER BAND]
key to select “AM”.
3. Press the
[POWER]
key to turn the power OFF.
4. Press two keys of
[ENTER]
and
[POWER]
simultaneously.
5. The message “9K STEP” or “10K STEP” is displayed on the
fluorescent indicator tube, and thus the channel step is changed
over.
[CD SHIP MODE]
• This mode moves the optical pick-up to the position durable to
vibration. Use this mode when returning the set to the customer
after repair.
Procedure:
1. Press the
[POWER]
key to turn the power ON.
2. Press the
[CD]
key to select “CD”.
3. Press two keys of
[CD]
and
[POWER]
simultaneously.
4. The message “LOCK” is displayed on the fluorescent indicator
tube, and the CD ship mode is set.
[CHANGE-OVER FUNCTION OF MD/VIDEO]
• This mode is used to enable function of external input to change
over between MD and VIDEO.
Procedure:
1.
Set to standby state.
2. Press two keys of
[MD VIDEO ]
and
[POWER]
simultaneously.
3. The message “MD” or “VIDEO”is displayed on the fluorescent
indicator tube, and the function of external input is changed
over.
[CD TRAY LOCK MODE]
• This mode is used to unable to take sample disc out of tray in
the shop.
Procedure:
1. Press the
[POWER]
key to turn the power ON.
2. Press the
[CD]
key to select “CD”.
3. While pressing the x key, press the Z key for 5 seconds.
4. The message “LOCKED” is displayed on the fluorescent
indicator tube and the tray is locked. (Even if pressing
the
Z key, the message “LOCKED” is displayed on the
fluorescent indicator tube and the tray is locked)
5. To release from this mode, while pressing the x key, press
the
Z
key for 5 seconds.
6. The message “UNLOCKED” is displayed on the fluorescent
indicator tube and the tray is unlocked.
[AMP TEST MODE]
• This mode is used to set the parameter of AMP IC for adjustment
of tone quality and VACS level and display VACS status.
Procedure:
1. Press the
[POWER]
key to turn the power ON.
2. Press three keys of x ,
[HEAVY]
and
[HIP POP]
simultaneously.
3. When the AMP test mode is activated, the message “AMP
TEST” is displayed on the fluorescent indicator tube
momentarily.
4. Press two keys of
[HEAVY]
and
[DISC DIRECT PLAY 2]
simultaneously, mode is changed over to parameter setting of
AMP IC and display of VACS status.
5. When the VACS ON, the message “V2255255” is displayed on
the fluorescent indicator tube, and when the VACS OFF, the
message “2255255” is displayed on the fluorescent indicator
tube.
6. Press the
[VOCAL]
key, DBFB ON/OFF is changed over.
7. Press the
[ENTER]
key, surround ON/OFF is changed over.
8. Press the
[MANUAL]
key, EQ band is changed over to LOW,
MID or HIGH.
9. Press the
[HIP POP]
and
[TECHNO]
key, EQ curve adjustment
value is changed over between –8dB to +8dB.
10. To release from this mode, press two keys of
[HEAVY]
and
[TECHNO]
simultaneously.
) (