Maintenance; How To Clean Screen, Keyboard And Ports; Other Matters Needing Attention - Deepace KC901M User Manual

Unless permitted, DO NOT monitor the space frequency spectrum of the
non-working frequency with KC901M. Even if you accidentally do so, don't reveal the
data to anyone.
5.1 How to Clean the Screen, Keyboard and Ports
The glass pane of the display screen is replaceable. remove the protective film
from the screen, otherwise it will reduce the visibility under the sun.
Clean the display screen and the keyboard with a piece of wet tissue and dry up with
a gauze.
If there is dust inside, take the control circuit board apart, and clean it by
blowing it with 0.2MPa compressed air. If it's necessary, change a new display screen
and the keyboard rubber.
Please clean the RF adaptors regularly. To start with, clean the inside of the ports
with dry cotton swabs. Then clean it with a cotton swab dipped with a bit of alcohol.
Core needle's end face and the inside/outside steps of connector's shell must be
cleaned very well. Core needle's hole can be cleaned by spinning into it a slimly
twisted tissue.
Warning:
Before taking apart of the circuit board, all batteries and the charger must be
removed. Users can take apart of the instrument shell and the control circuit board
to install the batteries and clean the display screen, after which warranty is still
granted. But it will be out of the warranty range if there is any problem and damage
caused during taking it apart.
Wiping the instrument on any part with organic solvent is forbidden. Also be
careful not letting any fluid flow into the barometer.
5.2 Other Points for Attention
1. Please place the instrument into the suitcase or package during long-distance
transportation. Once taking out, tie it up to a strap to safe it from falling and crashing.
Do NOT put it together with something hard such as construction tools.
2. When testing some heavy devices, or connecting some thick and strong coax
cables, users should employ flexible cables to do the switch-over. Additionally, users
should perform calibration to erase the influence of the patch cord.
3. When installing the connector, insert it carefully into the right position. When
the core needle fits exactly into the core hole, screw the thread tight. Use one hand
to hold the instrument still and keep it from spinning, the other hand to rotate the
barrel. Also pay attention and check the connectors not frequently used. If the core
needle is too long or bent, repair it before connecting.
Chapter Five

Maintenance

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