Instruction manual

NGA 2000 MLT Hardware
TEST PROCEDURE / TEST POINTS
11 - 9
Emerson Process Management GmbH & Co. OHG
Instruction Manual
90002929
07/2006
B
C
Jumper P40
B
C
On the right you see the LEDs fo area B in
enlarged depiction.
During operation, the LEDs V3 (CH1) and
V4 (CH2) must be flashing, if a detector is
employed on the concerning detector con-
nection.
In case that the appropriate channel is not
used, status of the concerning LEDs does
not matter.
Correct status during operation displays
correct function of synchronization (lock
display).
At last, inspect the LEDs in area C (see Fig.
11-6c on the right). The green LEDs must
be flashing, the red LED must be off (if the
red LED is active, DSP01 is operating in
DEFAULTMODE, i.e. configuration is erro-
neous. In that case, please note description
of soldering pad „DEF“ (LB3), Jumper P40
as well as of the single LEDs in section
11.3.4.1)
After carrying out the described inspection of the LEDs on the component side of DSP01 pcb, carry on
with inspection of the soldering pads on the soldering side as described on the following pages.
Fig. 11-6b: LEDs “V3” and “V4” (PCB "DSP01”)
Fig. 11-6c: LEDs “V12” to “V17”, Jumper “P40”
(PCB "DSP01”)
TROUBLESHOOTING INSTRUCTIONS FOR PCB DSP01