Routine Maintenance
• Check all the items listed in the Self-inspection of equipment faults and con-
firm whether there are still some problems.
• Collect the SN number
If there are still some problems, carefully read the Warranty and Limitation of
Warranty in the preface of the manual. Confirm that your instrument complies
with warranty service conditions. If after your warranty expires, ITECH offers re-
pair services at competitive prices.
Self-inspection of equipment faults
When the instrument fails, make the following checks to ensure that the failure
is in the instrument rather than any external connections. If the instrument fail-
ure can be eliminated via simple inspection, the maintenance cost and time can
be saved.
• Check whether the AC power cord is securely connected to the instrument
and to a powered outlet.
• Check whether the front-panel Power On switch has been pushed.
• Check whether self-inspection of the instrument is successful and whether
the specifications and performance are within the indicator ranges.
• Check whether the instrument displays error information.
• Use other instruments instead of this instrument for confirmation.
Collect the SN number
ITECH will constantly improve the product performance, availability and reliabil-
ity. The service personnel of ITECH will record changes of each instrument. All
relevant information is marked uniquely according to the serial number of each
instrument. The equipment returned for repair must adopt the SN number as the
tracking ID.
When you contact the engineer, the effective SN number of the instrument will
be the effective guarantee for effective service and complete information. You
can obtain the SN number of the instrument by the following ways:
1. Press the composite keys [Shift]+[DC](System) to enter into the system
menu interface.
2. Rotate the knob to select System Info and press [Enter] key to confirm.
3. Rotate the knob to view the SN number.
Please record the SN number and provide SN information when doing main-
tenance service.
Copyright © Itech Electronic Co., Ltd.
109
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