2 Instrument Configuration
Copyright © WOODLEY EQUIPMENT COMPANY LTD.
58
Problem
Description
Problem Indicators
Solution
The ARM system
on the main control
panel is not running
The powered-on device fails to do
self-test; the ARM status indicator light
D79 is not flashing and the indicator
light for ARM power management chip
D14 is on. A multimeter is used to test
the power management chip only to
find that the power output is normal
throughout the chip and the device
lifetime can last for more than three
years.
The boot media for the main
control panel, NAND Flash U107,
may be damaged; replace the
main control panel as soon as
possible.
The ARM system
on the main control
panel is not running
The powered-on device fails to do
self-test; the ARM status indicator light
D79 is not flashing and the indicator
light for ARM power management chip
D14 is on. A multimeter is used to test
the power management chip only to
find that the power output is normal
throughout the chip and the ARM chip
U50 feels hot.
The ARM of the main control
panel is damaged; replace the
main control panel immediately.
The FPGA program
fails to load
The FPGA running status indicator
light, D90, is not flashing, the FPGA
3.3V power indicator light D17 is in
normal ON status, and so is the FPGA
2.5V power indicator light D16. The
FPGA 1.8V power indicator light, D15,
is in normal ON status; test the FPGA
1.2V with a multimeter and the voltage
tested at TP17 is normal.
The FPGA on the main control
panel is damaged; replace the
main control panel immediately.
The FPGA program
fails to load
The FPGA running status indicator
light, D90, is not flashing, and the
FPGA 3.3V power indicator light D17 is
not lit up.
The FGPA 3.3V power circuit is
problematic and the issue can be
located by multimeter testing.
The FPGA program
fails to load
The FPGA running status indicator
light, D90, is not flashing, and the
FPGA 2.5V power indicator light D16 is
not lit up.
The FGPA 2.5V power circuit is
problematic and the issue can be
located by multimeter testing.
The FPGA program
fails to load
The FPGA running status indicator
light, D90, is not flashing, and the
FPGA 1.8V power indicator light D15 is
not lit up.
The FGPA 1.8V power circuit is
problematic and the issue can be
located by multimeter testing.
The FPGA program
fails to load
FPGA running status indicator light,
D90, is not flashing; test the FPGA
1.2V power with a multimeter, and the
voltage tested at testing point TP17 is
not 1.2V.
The FGPA 1.2V power circuit is
problematic and the issue can be
located by multimeter testing.
Liquid has been
spilled onto the
main control panel.
The main control panel is eroded.
Replace the main control panel
