Johnson Controls Frick QUANTUM Series Maintenance Manual page 22

090.560-M (APRIL 13)
Page 22
INTRODUCTION
Frick Controls has strived to remain on the cutting edge
®
of microprocessor technology and development. Because
of the ever-increasing speed, memory features, and pow-
er of microprocessors, Frick® will continue to introduce
the latest advancement in microprocessor control tech-
nology.
Q4 Board
WHAT SHOULD OCCUR WHEN APPLYING POWER
The fi rst thing that should be checked when troubleshoot-
ing the Q4 board is it's powering up sequence.
When powering up the Q4, the following sequence of
events are indicative of a properly working main proces-
sor board:
• Green PWR (Power) LED will turn on solid.
• Red FLASH LED will fl ash several times early in
the boot sequence. It is normally not lit.
• LED D8 (on the smaller board) will start to blink
at the rate of about once-per-second. It will
continue to blink after the Q4 has booted. The
only time that this fl ashing rate is interrupted, is
when a key is pressed on the keypad.
• The display should show several DOS (text) style
screens. A penguin image will appear in the up-
per left corner of the screen as the boot se-
quence progresses.
QUANTUM™ LX CONDENSER/VESSEL CONTROL PANEL
MAINTENANCE
Q4 CONTROLLER BOARD
• Just before fully booting, a Loading bar will ap-
pear at the bottom of the screen, showing the
percent of load that has completed.
• The Operating Status screen will appear.
After the Q4 has properly powered up, the following se-
quence of events is indicative of proper communication
to the analog and digital boards:
• The Analog and Digital I/O boards TX/RX lights
should be blinking.
• Each I/O board should have the power LED
lighted and the Active LED should be blinking.
WHAT IF THE OPERATING STATUS SCREEN IS NOT
SHOWN
If the Operating Status screen is not shown, check the
following items:
1. If no LED's are lit, then check AC and DC power.
Refer to the Power Supply section.
2. Check if the lighting of the LED's is occurring as
described in the What Should Occur When Ap-
plying Powering section.
• If the powering up sequence continues to
repeat without displaying the Operating
Status screen, then there is a booting prob-
lem.
3. Check for bad connections.
4. Check if an error message is displayed when
booting.
• Be sure to write down any error messages
exactly as they appear.
5. Check that the software is OK:
• Is the correct software installed?
• Did you just install new software?
6. Remove Flashcard and reboot. This will cause the
Q4 to boot under a pre-LX operating software. If
it boots properly under this older software, then
trying re-booting from the Flashcard again. If it
doesn't boot with the card, then the Flashcard
could be corrupted, and needs to be replaced.
7. Check the display. If the Q4 board is booting but
you have no display, check the following:
• Check the backlight tube. Look very closely
at the display to see if anything is visible in