Service manual

Service Manual 29
675-120 Revision D May 2005
Table 2 - Diagnostics Screen Boxes
Box Description
DIPS The DIPS box shows the position of the DIP switches on the main processor
PCB. Position 1 is on and O is off.
CONTRAST
INDICATOR
The contrast indicator box is for use in the factory for setting the screen
contrast.
CALIBRATION
INDICATOR
The calibration indicator box shows
during calibration, a when
successfully completed and a
if the calibration fails.
The following display boxes show if the values are within the set parameters, a
if the values are outside the set parameters, a if the function is not
calibrated and a
if the function is disabled on the DIP switch.
Table 3 - Additional Diagnostics Screen Boxes
Box Description
S/W The S/W box shows the version and serial number of the loaded firmware.
H/W The H/W box shows the status of the watchdog timer (WDG) and the EEPROM
(E
2
P).
PT The PT box shows the status of the Patient Trigger module.
LCD The LCD box shows the ambient light sensor voltage (AMB), the back light level
(BLL) and if the backlight is operative (BLF - 1 for fail, O for on).
PSU The PSU box shows the external power supply voltage (EXT), the battery voltage
(BAT), the battery charge status (CHG) and the temperature (TMP).
RAILS The RAILS box shows the ground voltage (GRD), and the control voltages (6.5,
8.2 and 10 V).
RS232 The RS232 box shows factory set data.
PRESSURE The PRESSURE box shows cm H
2
O pressure value, the voltage from the
pressure sensor (PSEN) and the software offset (OFFS) and gain (GAIN)
values.
FLOW The FLOW box shows the flow rate (LPM), the voltage from the flow sensor
(FSEN) and the software offset (OFFS) and gain (GAI N) values.
ZVALVE The ZVALVE box shows if the Z DRIVE is operative (ZDRV - 1 for fail, O for on)
for the zero valve and the Z sensor (ZSEN) voltage.
DVALVE The DVALVE box shows if the D DRIVE is operative (DDRV - 1 for fail, O for on)
for the dump valve and the D sensor (DSEN) voltage.
PVALVE The PVALVE box shows if the P DRIVE is operative (PDRV - 1 for fail, O for on)
for the pressure assist valve and the P sensor (PSEN) voltage.