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6-13

2-2. Operation of Auto Self Check
When the Self Check mode becomes active at the AC Power ON
or by key input, the test display of the following steps (1) to (4) is
repeated.
(1) FLD and LED all ON (for 5 seconds)

(2) MODEL display (for 2 seconds)

(3) Version display (for 2 seconds)

(4) ROM creation date display (for 2 seconds)

6-14

2-3. Each Self Check Function
Each Self Check function tests the FLD display, LED display, and
key input.

2-3-1. FLD and LED All ON
2-3-1-1.Transition Keys in Self Check Mode
• [STOP] key and [OPEN/CLOSE] key on the main unit
• [LEFT] key on the main unit and the remote commander

2-3-1-2. Operation and Display
In this mode, all LEDs except STANDBY LED and all segments
of FLD turn ON.
Example of FLD all ON

Input

IC404: Pin No. (Signal)

Voltage [V]

Pin ea

 (AD1)

Pin es

 (AD2)

Pin ef

 (AD4)

Pin eg 

(AD5)

Pin eh 

(AD6)

Pin ej 

(AD7)

0 – 0.2

ENTER

TOP MENU *

PLAY

OPEN/CLOSE

POWER

LOAD

0.6 – 0.82

DOWN

MENU *

PAUSE

EXCHANGE

DISC 5

1/ALL *

1.16 – 1.47

LEFT

RETURN *

PREV

DISC SKIP

DISC 4

PREQ

1.8 – 2.12

UP

DISPLAY *

NEXT

–

DISC 3

TVS

2.48 – 2.7

RIGHT

–

–

–

DISC 2

DISC 1

5.0

–

–

–

–

–

–

2-3-2. Main Unit Key Name Display and Key Code Display
2-3-2-1. Transition Keys in Self Check Mode
• Keys on main unit except keys transited in self check

2-3-2-2. Operation and Display
When a key on the main unit is pressed in the Self Check mode,
the name of that key is displayed on the FLD. Also, the key name
display and the key code display can be switched with the
[DISPLAY] key on the remote commander. “NOTHING” is dis-
played when nothing is entered. Also, VCD, DVD, and CD seg-
ments turn on when a communication error occurred.

FLD display (at input of [PLAY] key on the main unit)

* : NC655P only

6-15

Key code display (at input of [PLAY] key, Key code: 0Ah)

At input of faulty voltage

When two keys are pressed

2-3-3-1. Transition Keys in Self Check Mode
Remote commander keys except keys transited in self check

2-3-3-2. Operation and Display
When a key on the remote commander is pressed in the Self Check
mode, the name of that key is displayed on the FLD. Also, the key
name display and the key code display can be switched with the
[DISPLAY] key on the remote commander. “NOTHING” is dis-
played when nothing is entered. Also, VCD, DVD, and CD seg-
ments turn on when a communication error occurred.

Remote commander key name display (at input of [PAUSE] key)

Remote commander key code display (at input of [PAUSE] key,
Key code: 39h)

6-16

2-3-4. Communication Monitoring Display
The communication state is monitored and displayed while the
key name on the main unit and the remote commander is displayed.
When the communication to the System Controller failed, VCD,
DVD, and CD segments turn on.

Communication error display (at no key input)

Communication error display (at code display without input of
the remote commander)

2-3-5-1. Transition Keys in Self Check Mode
• [RIGHT] on the main unit and the remote commander
• SHUTTLE on the remote commander during Anode Test dis-

play
(This model does not provide JOG/SHUTTLE, and therefore
use another DVD remote commander having the JOG/
SHUTTLE)

2-3-5-2. Operation and Display
The Self Check mode transits to this mode when [RIGHT] key is
entered. Only the first segment of each grid of FLD turns on, and
each time the SHUTTLE is entered, the segment of each grid is
switched in order. When SHUTTLE input is clockwise, the seg-
ment switches in 1 

→ 2 → 3 direction, or counterclockwise it

switches in 3 

→ 2 → 1 direction. This tests whether each segment

turns on individually.

Display at the start of Anode Test

↓ (Input in CW direction)