LABORIE PORTASCAN 3D, Руководство по обслуживанию, Страница: 15 / 43

LABORIE Portascan3D Service Manual PTS3D-SM01 V3.0
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Fig. 4.4 f) Removing touch screen controller
5.
If
replacing
controller does not work, the problem may
have occurred to the digital part. Operators may identify
the problem with substitution method and replace the
main board if necessary.
B. Abnormal Display of LCD (color error, screen flash,
etc…)
Open the housing case following 6. DISASSEMBLY OF THE MAIN
UNIT, remove shielding case and check if the back light unit
control cable, LCD data cable are correctly and well plugged
(as shown in
Fig. 8 ). Connect these cables properly to exclude
the problem.
1.
If the above-mentioned procedure does not work,
operators may judge if problem occurs to the main board
with substitution method and replace the main board
when necessary
.
C. No Display On LCD
1.
Follow 6. DISASSEMBLY OF THE MAIN UNIT to open the
housing to remove the shielding case and check the LCD
back light board control cable. Replace the connecting
cable to solve the problem when necessary.
2.
If the above-mentioned procedure does not work,
operators may judge if problem occurs to the main board
with Check the LCD data cable, and change the data
cable when necessary to exclude the problem.
3.
Measure the voltage of back light control cable pin, and
check whether the voltage complies with the standards
listed in LCD manual.