Operation Monitor (Lower Lcd Screen) - MES SQA-V Gold Service Manual

and
Operation
Operation Monitor - Lower LCD Screen (Part# LCD-0009)
Monitor
ISSUE #1: The SQA-V is ON, both power indicators are functioning and the fan is
working. But the lower LCD screen (Operation Monitor) is not illuminated although data is
displayed on the screen.


NOTE: Turn
off the power
supply to the
SQA-V and
disconnect the
power supply

cable from the
back of the
device before
opening the
SQA-V.
WARNING:
DO
NOT TOUCH the
illuminated area
of the LCD
Backlight – HIGH
VOLTAGE is
supplied there.
AFTER checking
the LCD backlight,
turn off the
SQA-V and
disconnect it from

the main.
ISSUE #2- Blank Screen: There is no data displayed on the screen in spite of the fact
that the SQA-V is ON, both power indicators are functioning and the fan is working.



WARNING:
The two ends
of the flat
cable must be
connected in
the same way

at each of the
hubs or the
LCD may be
burned!
SQA-V
Service Manual 24_Apr_2014
Open the SQA-V.
Turn on the SQA-V and check that the
LCD Backlight is lit. If not, check the
input and output cables of the
inverter board: verify that the cables
are well connected and not loose.
If the power supply is OK and the
screen doesn't light up, replace the
inverter board (Item#AS-9084111):

Turn the SQA-V off and
disconnect the cables
connecting the inverter board
to the main board and LCD
screen.

Using a Phillips screwdriver,
remove the two screws that
secure the old inverter board.

Replace the inverter board
with a new one and secure it
with the two screws.

Re-connect the cables of the
inverter board.
If the problem persists, contact MES
Customer Support.
Re-install SQA-V software.
If the software was not installed successfully- please refer to the technical bulletin in
the appendix section for further instructions
If the software was installed successfully and the problem remains- check the LCD
flat cable:

Open the SQA-V and verify that the LCD flat cable, with the red lined side up
is connected to the section designated with a 12 on the main board

Replace the flat cable if it appears damaged in any way.
If replacing the cable does not work- replace the processor on the main board (see
Appendix section for instructions).
LCD Flat
Cable
LCD Operation
Monitor/Board
18
Inverter Board LCD Backlight
Power Cables
Note the alignment of
the RED line on the cable