Name: Frick QUANTUM 1
Brand: Frick
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S90-555 M FRICK QUANTUM™ CONDENSER/VESSEL CONTROL PANEL

Page 6 MAINTENANCE

5. Check for bad connections.

6. Check the display. If the CPU board is

booting but you have no display, check the

following:

 When working with the display, be

extremely cautious of the backlight

inverter board. This board is mounted

next to the display, and is used to

generate high voltage to drive the

displays fluorescent tube.

 Check the LCD backlight tube. Look

very closely at the display to see if

anything is visible in the dark screen.

You will need good lighting and look for

any “ghost” type image. If it appears that

there is something on the screen but

very dark, the problem maybe the LCD

backlight tube. On the LG Philips, NEC

and Sharp displays this tube is field

replaceable. On the Samsung LCD

display, it is not available and the

display will have to be replaced. You

must take the display apart to identify

the display manufacturer.

 Verify that both the display cable and

the inverter cable are firmly seated. It

may be necessary to remove the video

cable from the back of the LCD display

and reseat it to be sure it is connected

properly. Note: This is a small

connector and caution should be

observed so that it is not damaged

due to excessive force.

 Check the backlight inverter connector

(P4). When the Quantum board is

mounted in the panel, this connector is

located at the middle left of the board.

The pins on the right side are odd

numbered, with pin P(1) at the bottom -

pin P(9) at the top. The pins on the left

side are even numbered, with pin P(2)

at the bottom - pin P(10) at the top. After

the Quantum has booted, pin P(3)

should measure +2.4Vdc, pins P(4) and

P(5) are DC grounds, and pins P(6) and

P(7) should measure +12Vdc. A bad

inverter will also cause a dark display.

 Reference the “Display Assembly

Component Replacement Guide” at the

end of this manual, and check that the

LCD, LCD cable, and software versions

are matched correctly.

Quantum™ 4

1. If no LED’s are lighted, then check power AC

and DC.

2. Check if the lighting of the LED’s is occurring

as de-scribed in the “What Should Occur

When Powering Up The Panel” section.

 If the powering up sequence continues

to repeat without displaying the “Home”

screen, then there is a booting problem.

3. Check if an error message is displayed when

booting.

 Be sure to write down any error

messages that appear.

4. Check that the software is OK:

 Is the correct software installed?

 Did you just install new software?

 If you need to clear the numerical

setpoint and calibration areas of

memory for any reason, clear the

memory as described in the S90-555

FSI publication. NOTE: This

information will be replaced by

factory default values, so any

setpoint and calibration data values

that need to be customized must be

reentered.