Komatsu PC88MR-10 Shop Manual page 437

Function of checking display of LCD (Liquid
Crystal Display)
(PC-Q1LE-100-K-00-A)
While the standard screen is displayed, if the
numeral input switches or function switches are
operated in the following manner, the entire LCD
screen turns white.
Switch operations (simultaneous): [4] + [F2]
a When finishing the operation of the switches,
release [F2] first.
a If there is a display error in the LCD, only that
part is indicated in black.
a To return to the former screen, press any one of
the function switches.
Reference: An LCD panel, as one of its
characteristics, sometimes shows black spots
(spots that remain unlit) and bright spots (spots that
do not go off).
If the number of the bright points and black points
does not exceed 10, the LCD panel is not faulty or
defective.
Function of checking service meter
100-K-00-A)
When checking the service meter with the starting
switch in OFF position, operate the numeral input
switches as follows to display only the service meter
section.
Switch operations (simultaneous): [4] + [1]
a There is some time lag in start of the LCD, so
hold down the switches until the service meter is
displayed.
a If you release one of the switches, the monitor
goes off.
Reference: After the machine monitor is used
continuously over a long period of time, blue points
(points that remain lit) may appear on this screen. It
does not indicate that the LCD panel is faulty or
defective.
PC88MR-10
Function of Usage Limitation Setting/ Change
Password
Selecting the Usage Limitation Setting displays the
password input screen when you proceed to
breaker setting, attachment setting and
maintenance resetting. Observe the following
procedure when using the Usage Limitation Setting.
1. While the standard screen is displayed, perform
the following operation by using the numeral
input switches.
Switch operation (Press the switches in order
while pressing [4])
[4] + [5] o [5] o [5]
a This operation of the switches is not
accepted until 10 minutes elapse after the
starting switch is turned to ON position.
(PC-Q1MB-
2. After the "Usage Limitation Password" screen is
displayed, input the current password by using
the numeral input switches and confirm it by
using the function switch.
[F5]: Deletes input numbers/Returns to
standard screen.
[F6]: Enters input password.
a Default password: [000000]
a When the input password is correct, the
screen changes to the next screen.
30 Testing and adjusting
Electrical system
(PC88MR-Q19X-100-K-00-A)
30-87