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REFERENCES
TROUBLESHOOTING
If, after following the steps in the chart below, the problem
still exists, please consult your nearest JVC dealer.
Power
● The power is not connected properly.
HConnect the AC Adapter securely. (੬ pg. 11)
● The battery pack is not attached firmly.
HDetach the battery pack once again and re-attach it firmly.
(੬ pg. 11)
● The battery is dead.
HReplace the dead battery with a fully charged one.
(੬ pg. 11)
Video and D.S.C. Recording
● The tape’s erase protection tab is set to “SAVE”.
HSet the tape’s erase protection tab to “REC”. (੬ pg. 14)
● “TAPE END” appears.
HReplace with new cassette. (੬ pg. 14)
● The cassette holder cover is open.
HClose the cassette holder cover.
● This is not a malfunction.
● This is not a malfunction.
● “DATE/TIME” is set to “OFF”.
HSet “DATE/TIME” to “ON”. (੬ pg. 27, 29)
● Certain Wipe/Fader effects, certain modes of Program AE
with special effects, “DIS” and other functions that cannot
be used together are selected at the same time.
HRe-read the sections covering Wipe/Fader effects,
Program AE with special effects and “DIS”.
(੬ pg. 27, 28, 34, 35)
● 12X optical zoom is selected.
HSet “ZOOM” to “40X” or “900X”. (੬ pg. 28)
● The VIDEO/MEMORY Switch is set to “MEMORY”.
HSet the VIDEO/MEMORY Switch to “VIDEO”.
Video and D.S.C. Playback
● Your TV has AV input terminals, but is not set to its VIDEO
mode.
HSet the TV to the mode or channel appropriate for video
playback. (੬ pg. 18)
● The cassette holder cover is open.
HClose the cassette holder cover. (੬ pg. 14)
HClean the video heads with an optional cleaning cassette.
(੬ pg. 50)
Advanced features
● Focus is set to the Manual mode.
HSet Focus to the Auto mode. (੬ pg. 32)
● The lens is dirty or covered with condensation.
HClean the lens and check the focus again. (੬ pg. 48)
● The Squeeze mode (SQUEEZE) is selected.
HDisengage the Squeeze (SQUEEZE) mode. (੬ pg. 27, 29)
● The light source or the subject does not include white. Or
there are various different light sources behind the subject.
HFind a white subject and compose your shot so that it also
appears in the frame. (੬ pg. 21, 32)
● Shooting was performed under backlit conditions.
HPress BACK LIGHT. (੬ pg. 33)
● The subject is too bright.
HSet “r” to “SPOTLIGHT”. (੬ pg. 35)
● The Sepia (SEPIA) or Monotone (MONOTONE) mode is
activated.
HDisengage the Sepia (SEPIA) or Monotone (MONOTONE)
mode before setting White Balance. (੬ pg. 35)
● The Sepia (SEPIA) or Monotone (MONOTONE) mode is
activated.
HDisengage the Sepia (SEPIA) and Monotone
(MONOTONE). (੬ pg. 27, 35)
● When shooting in the dark, the unit becomes highly
sensitive to light when “GAIN UP” is set to “AUTO”.
HIf you want the lighting to look more natural, set “GAIN UP”
to “AGC” or “OFF”. (੬ pg. 27, 28)
The camcorder is a microcomputer-controlled device.
External noise and interference (from a TV, a radio, etc.)
might prevent it from functioning properly. In such
cases, first disconnect its power supply unit (battery
pack, AC Adapter, etc.) and wait a few minutes; and
then re-connect it and proceed as usual from the
beginning.
No power is supplied.
Recording cannot be performed.
When shooting a subject illuminated by bright light,
vertical lines appear.
When the screen is under direct sunlight during
shooting, the screen becomes red or black for an
instant.
During recording, the date/ time does not appear.
The LCD monitor or viewfinder indications blink.
Digital Zoom does not work.
The tape is moving, but there is no picture.
Blocks of noise appear during playback, or there is
no playback picture and the screen becomes blue.
The focus does not adjust automatically.
Snapshot mode cannot be used.
The colour of Snapshot looks strange.
The image taken using Snapshot is too dark.
The image taken using Snapshot is too bright.
White Balance cannot be activated.
The Black & White Fader does not work.
The image looks like the shutter speed is too slow.
REFERENCES
GR-DX78PAL_08Trouble.fm Page 45 Thursday, April 15, 2004 10:02 PM