24
should be regularly charged, so as not to damage the battery.
X. Packing list
XI.Common fault repair
Fault phenomenon
Reason
Solution
Power on, power
indicator light does not
shine
1.indicator broken
；
2.battery out power
；
3. The circuit board in the
host is faulty
1. See if there is an image
on the screen
；
2.Charge
；
3. Contact the supplier.
Power on, power
indicator light, but no
image
1. Contrast adjustment
improperly
2. The circuit board in the
host is faulty
1.Adjust contrast knob
；
2. Contact the supplier.
Boot, there are
images, but no
emission waveform
1. Contrast adjustment
improperly
2. The circuit board in the
host is faulty
1. Adjust contrast knob,
press impulse.
2. Contact the supplier.
When measuring,
there are emission
waveforms, no
reflection waveform
1. Measuring range is
wrong
2. The output test leads
are not connected well to
the cable under test
3. The circuit board in the
host is faulty
1. Adjust measurement
range
2.Check wiring
3. Contact the supplier.
1. Host
1
2. Power cord
1
3. Output cable
1
4. Instruction manual
1
5. Inspection report
1
6. Certificate
1
