Using The Internal Electronic Status Leds; Cpu Status Indicator; Relay Pca Watchdog And Status Leds; Figure 5-14. Cpu Status Indicator - Teledyne T200 User Manual

U
SING THE
Several LEDs are located inside the instrument to assist in determining if the analyzer's
CPU, I 2 C bus and Relay PCA are functioning properly.

CPU STATUS INDICATOR

DS5, a red LED located on the motherboard (Figure 5-14), flashes when the CPU is running
the main program loop. After power-up, approximately 30 – 60 seconds, DS5 should flash
on and off. If the front panel displays properly but DS5 does not flash, then the program
files have become corrupted, contact Teledyne API's Technical Support Department (see
Section 5.9) because it may be possible to recover operation of the analyzer. If after 30 –
60 seconds, neither DS5 is flashing nor does the front panel display properly then the CPU
is bad and must be replaced.

RELAY PCA WATCHDOG AND STATUS LEDS

There are sixteen LEDs located on the Relay PCA (some are not used on this model). The
most important of the LEDs is D1 (see Figure 5-15), which indicates the health of the I
bus.
R PCA S
ELAY
LEDs that remain continuously on or off (not blinking) indicate a default state for their
respective components as described in Table 5-6
083730200A DCN7962
I E
NTERNAL LECTRONIC
Motherboard

Figure 5-14. CPU Status Indicator

LED
TATUS S
Teledyne API T200 NO/NO
S LED
TATUS S
CPU Status LED
/NO Analyzer with NumaView™ Software
2 x
C
2
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