SBE SB-36 OPERATION MANUAL
cotton tipped applicator is useful for cleaning in narrow
spaces and circuit boards.
The high voltage circuits, particularly located in the PA assembly,
should receive special attention. Excessive dirt in these areas may
cause high voltage arcing and result in improper operation of the
transceiver.
6.2.4 Lubrication
The reliability of potentiometers, rotary switches and other moving parts
can be maintained if they are kept properly lubricated. Use a cleaning
type lubricant on switch contacts. Lubricate switch detentes with a
heavier grease. Potentiometers which are not permanently sealed
should be lubricated with a lubricant which does not effect electrical
characteristics. A potentiometer lubricant can also be used on shaft
bushings. Do not over lubricate.
6.3 TROUBLESHOOTING
6.3.1 Troubleshooting Techniques
These troubleshooting procedures are arranged in an order which
checks the simplest possibility before proceeding. The first checks
assure proper operation and connection. If the trouble is not located by
these checks, the remaining steps aid in locating the defective
component. When the defective component is located it should be
replaced.
A. Check switch and control settings.
Incorrect settings can indicate a trouble that does not exist. If there is
any question about the correct function or operation of any control, see
the Operating Instructions section of this manual.
B. Check associated equipment.
Before proceeding with troubleshooting, check that the equipment used
with the transceiver is operating correctly. Check that the
interconnecting cables are not defective. Also, check the power supply.
C. Isolate trouble.
Investigate the extent of the symptoms by monitoring the front panel
and "kHz" display while operating in different switch and control settings
NoobowSystems Lab. Tomioka, Japan 2003 http://www.noobowsystems.com/ Page 31 / 56
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