Citizen GSX-190 Service Manual Page 199

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PN 4237242C
7.3-1
TROUBLESHOOTING
SERVICE DIAGNOSTIC
7
7.3 SERVICE DIAGNOSTIC
A Service Diagnostic diluter table (or cycle) has been included in the instrument. The table
energizes solenoids and motors, one by one.
ATTENTION: Once you begin the cycle, you must advance completely through the table.
Pressing the
Escape
key will not exit the cycle.
To begin the Service Diagnostic, at the Main Menu select
5 SPECIAL FUNCTION tt 5 SERVICE tt 7
[no menu item displays on the screen].
When the instrument prompts you for a password, type 123.
After entering the password, solenoid LV1, the vacuum transducer vent valve located on the
Vacuum Sensor card, is energized. A list of the components and the order in which they are
energized is given in Table 7.3-1. To de-energize the current component and energize the
next, press the
Aspirate key.
Table 7.3-1 Service Diagnostic Cycle
Sequence Component Description - Function
1 LV1 Vents pressure transducer (located on the Vacuum Sensor card).
2 LV2 Vents VIC (located on the Vacuum Sensor card).
3 LV3 Switches between count and high vacuum for VIC.
4 LV4 Opens sweep-flow path.
5 LV5 Opens path between RBC aperture and VIC (count vacuum).
6 LV6 Opens path between WBC aperture and VIC (count vacuum).
7 LV7 Selects which bath to drain.
8 LV8 Opens path from probe wipe to VIC (high vacuum).
9 LV9 Selects LV12 (OFF) or WBC bath air/mix (ON).
10 LV10 Selects bath or VIC to drain.
11 LV11 Selects which bath receives rinse diluent.
12 LV12 Selects RBC bath mix (OFF) or lyse line air gap (ON).
13 LV13 Selects which bath gets prefill.
14 LV14 Switches diluent syringe between bath or probe/probe wipe.
15 LV15 Selects input/output for diluent syringe.
16 LV16 Switches dispense output between probe and probe wipe.
17 Moves sample aspirate probe to the aspirate position.
18 Moves sample aspirate probe to the WBC bath position.
19 Moves sample aspirate probe to the RBC bath position.
20 Moves sample aspirate probe to the down position.
21 Moves sample aspirate probe to the up position.
C
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