Diamond Diagnostics Prolyte, Руководство по обслуживанию

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P R O L Y T E A N A L Y Z E R
14
2.e Probe Motor Verification
1. Disconnect the power cord, wait ten seconds, then reinstall the power. The probe
arm should move down and back up. If there are no error messages, resume normal
operation. If a “PRB” error occurs, proceed to
STEP 2 .
2. Remove the sample probe from the probe arm. For details refer to
proLYTE
Operator’s Manual. Remove and reinstall the power cord. The probe arm should move
down and back up. If there are no error messages examine and if necessary replace
the sample probe, solutions valve and/or probe wiper. If a “PRB” error occurs,
proceed to
STEP 3 .
3. If the probe arm does not move at all perform the following operations.
A. Visually inspect that the actuator and retaining ring are correctly installed on the
probe motor lead screw. If the installation is incorrect, refer to
CPU Board
Removal and Probe Motor Installation in the REPAIR SECTION for details.
B. Check that the probe motor wires are completely seated inside the 4-pin
connector as follows:
- Remove the probe motor connector from the bottom left of
the CPU Board (position P3).
- Compress the strain-relief cap against the probe motor
connector to firmly seat the wires.
- Reinstall the probe motor connector into the CPU Board.
C. Repeat STEP 1 . If no errors occur, resume normal operation.
4. If the probe arm moves and stops anywhere except the top position, or if the probe
arm vibrates against the top of the proLYTE housing, replace the probe position
sensor. To replace the sensor, first remove the CPU Board and the probe position
locator. Refer to
Probe Motor Assembly Removal in the REPAIR SECTION for details.
5. If the probe does not move at all, check for a short circuit on the CPU Board
between TP12 and TP2. If there is a short circuit, replace the Stepper driver daughter
board at positions U35 and U36. See
Front and Rear Assembly Components in the Product
Description Section .
6. If no short circuit is found, replace the probe motor assembly. Refer to the Probe
Motor Assembly in the REPAIR SECTION for details.