Welch Allyn Micro Tymp 2, Руководство по обслуживанию

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this bus, they do use it to communicate with the EEPROM. All data stored in and
retrievedfrom EEPROM passes through this bus. The voltage levels on the two bus
lines indicate different things to the microcontrollers. In addition, if both the Master
and the Slave try to use the bus at the same time, an error could occur.
3.4.2 Suggestions:
With the unit powered up check the voltage levels of TP5 and TP6. They should be
5V. If one of them is “stuck” at some other voltage check for broken traces
or shorts involving that particular circuit. Replace MCU PCB.
Historically we have found that this error can be resolved by merely clearing the
error registers, powering the unit down, and then powering it back on.
3.5 Home Pump Error - $08 / XXXX1XXX
3.5.1 Description:
An error has occurred in which the optical sensor has not detected the pump flag in
the proper position after a Home Pump command has been attempted.
3.5.2 Suggestions:
• Verify the flex is properly seated in the connector.
• Verify that the pump and flag are functional - sometimes the pump can be stuck
at one end of its travel and thus not move when the motor is actuated.
• Verify the black and red wires to the pump motor are connected properly to the flex.
• Verify there are no cracks or abrasions in the flex.
• Verify the solder connections to the optical.
• Verify that drive belt is in good condition.
3.53 N/A - $04 / XXXXX1XX
THIS ERROR SHOULD NOT OCCUR. IF IT DOES REPLACE THE SLAVE OR
MCU PCB.
3.6 N/A - $02 / XXXXXX1X
THIS ERROR SHOULD NOT OCCUR. IF IT DOES REPLACE THE SLAVE OR
MCU PCB.
3.7 N/A - $01 / XXXXXXX1
THIS ERROR SHOULD NOT OCCUR. IF IT DOES REPLACE THE SLAVE OR
MCU PCB.