Wavecom W 4010 User Manual page 33

Equipment symptom
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Equipment shows no function at all
Tuning display blinks with no signal
Equipment resets arbitrarily
No serial or parallel outputs
No TTL output
Incorrect character output to
peripheral equipment
Character loss on parallel or serial
output interface
Tuning display non-distinct
Tuning display is not capable of
showing full deviation
Video display is not correct
possible cause
Check power supply and fuse
Supply voltage too low, must be a
minimum of 12 VDC
Unstable supply voltage or
intermittent contact
Push "Print-On", LED must glow
Check if peripheral is "on-line"
Check DTR hand-shaking line
(ready means a + voltage of 3 to
12 Volts)
Check to see if peripheral (or
cable short) is loading the line
too much
Check if both Baud rates set to
same speed
Check if data format is correct
Check if shift jumper is set
correctly
Check whether DTR signal is OK
Check speed capability of printer
with slower signals
Check filter knob position,
eventually turn counter-clockwise
Check ground of audio input
Turn level knob counter-clockwise
Check display deviation with other
signals
Audio input level too low, try
taking audio from the loudspeaker
Try a different monitor
Check that the synch frequency is
set correctly
Check that the horizontal hold is
set correctly
Check the contrast and brightness
Turn the W 4010 off - then on,
press F1 then F3
Page 33