Service Manual UTS1000/3000 Series
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6.
Trouble-shooting
Service level
This section contains information and procedures to help you determine if a power failure is an instrument
problem. If the power fails, the instrument needs to be sent back to the Uni-Tech service center for repair,
because other internal electronic components or modules cannot be replaced by the user.
Frequently Asked Questions
Use the following table to help isolate possible failures. The following table lists problems and possible
causes. This list is not exhaustive, but it can help eliminate quick-fix issues, such as a loose power cord. For
more detailed troubleshooting, see Trouble-shooting Flowchart
Symptoms
Possible reason
The instrument cannot be powered on
•
Power cord not plugged in
•
Electricity failure
•
Defective Micro-controller Components
The instrument is powered on, but the fans
are not running
•
Faulty fan power cable
•
Fan power cable not connected to circuit board
•
fan failure
•
electricity failure
•
One or more defective load regulator points
The display is blank or there are streaks in
the display
• Display or display circuit failure.
Required equipment
•
Digital voltmeter for checking mains voltage.
•
Anti-static working environment.
