– 10 –
• Press and hold down PLAY MODE to hold the current display
while the key is being pressed.
4-2-3. How to release the TEST MODE
When method
1
was used:
Turn off the power and open the solder bridge on TAP801 on the
main board.
Note: The solder should be removed clean. The remaining
solder may make a short with the chassis and other part.
When method
2
was used:
Turn off the power.
4-3. TEST MODE STRUCTURE
SECTION 4
TEST MODE
4-1. GENERAL
• When entered in the TEST MODE, this set provides the Overall
Adjustment mode which allows CD and MO discs to be auto-
matically adjusted. In the Overall Adjustment mode , the system
discriminates between CD and MO discs, performs adjustments
in sequence automatically, and displays the faulty location if any
fault is found. In the Manual mode, selected adjustments can be
performed automatically.
• The attached remote control is used to operate the TEST MODE.
Unless otherwise specified in the text, the key means that on the
remote control.
4-2. SETTING THE TEST MODE
4-2-1. How to set the TEST MODE
To set the TEST MODE, two methods are available.
1
Solder bridge and short TAP801 (TEST) on the main board.
Then turn on the power.
2
In the normal mode, operate the keys on the set and those on the
remote control as specified below:
Turn on HOLD switch on the set. Holding down
x
(STOP)
key on the set, press the keys on the remote control in the
following sequence:
> N
t
> N
t
.
t
.
t
> N
t
.
t
> N
t
.
t
X
t
X
4-2-2. Operations when the TEST MODE is set
When the TEST MODE is entered, the system switches to the
display check mode within the TEST MODE. From this mode, the
other Test modes can be accessed.
When the TEST MODE is set, the LCD repeats a cycle of the
following displays:
Remote control LCD
L501
C518
CN551
8
1
5
TP518
CN501
1
5
10
15
20
TAP801
TAP801
MAIN BOARD (SIDE B)
888
u
004
V1.100
All on
All off
Microprocessor
version
display
Test Mode
(Display Check Mode)
Manual Mode
Servo Mode
Audio Mode
Power Mode
OP Alignment Mode
key
key
+
key
+
key
x
x
key
key
Overall Adjustment Mode
