Filter
Top Products
23
4.6 Test
The test checks the ROM, RAM, color bar
and keyboard for proper operation. You may
start the test as follows:
1. Turn on the power while pressing any key.
2. Press the [–] key. The following display
appears.
ROM:
RAM:
PROGRAM No: 02522790**
** = Version no.
RANGE: 2
GAIN : 86
MODE : 4
OK
OK
Figure 4-1 Test display
3. The ROM and RAM are checked and the
results are displayed as OK or NG (No
Good).
4. Press and release each key (except the
POWER key) one by one. If the key is
normal, its on-screen location lights in
black and the buzzer sounds while the key
is pressed.
5. Operate the controls. The control setting
indication should be the same as actual
control setting.
4.7 Test Pattern
This feature tests for proper display of colors.
1. Turn on the power while pressing any key.
2. Press the BRILL key three times. Press
the BRILL key again to change the test
pattern as below.
GRAY
WHITE
BLACK
WHITE
B
L
A
C
K
R
E
D
G
R
E
E
N
B
L
U
E
Y
E
L
L
O
W
P
U
R
P
L
E
A
Q
U
A
W
H
I
T
E
Figure 4-2 Test patterns
3. Press the POWER key to escape.