JVC DLA-HX1U Instruction Manual - Page 52

This projector uses a micro computer. External noise may cause it to malfunction. If this happens

Page 52 highlights

Troubleshooting Symptom Probable cause Corrective action Video image is fuzzy. Is the focus adjusted correctly? • Adjust focus with the focus ring of the lens. Is the projector placed too near or too far from • Set the projector at the correct distance. the screen? Are "Tracking" and "Phase" adjusted correctly? • Adjust "Tracking" and "Phase" using the menu. Page 26 17 37 Video image is ab- Is the "Brightness" adjusted correctly? • Adjust "Brightness" using the menu. 37 normally dark or bright. Color is poor or un- Is the picture quality (color density, etc.) ad- • Adjust picture quality using the menu. stable. justed correctly? Is the correct "Decoder" selected? • Set the "Decoder" to "AUTO" or the correct dedicated decoder. • If the problem is not rectified after setting to "AUTO", set to forced dedicated mode. Are signals (scanning frequency, etc.) from the • Check if the signal is appropriate (scanning connected device appropriate? frequency, etc.), and input the appropriate sig- nal. Is the [PC2] input terminal being used? • When the [PC2] input terminal is being used, "PC2(BNC)" must be selected from the "Options" menu. Set it correctly according to the input signal. The upper part of the If the input signal comes from a computer sys- • Input separate sync signals for vertical sync video image bows or tem, is this a sync signal of composite sync (Cs) (V) and horizontal sync (H) signals. distorts. or G on sync type? Are signals with much jitter or skew distortion • Input signals with little jitter or skew distor- being input from a video deck? tion. • Use a TBC or a device with a built-in TBC. Remote control unit Are batteries installed correctly? does not work. • Match the polarities of batteries correctly, as shown on the battery cartridge. Are batteries exhausted? • Replace with new batteries. Is there an obstructive object between the re- • Remove any shielding objects. mote control unit and the remote sensor? Is the remote control held too far from the sen- • Use the remote control unit at a nearer point. sor? 37 38 19, 20 39 19, 20 ----- 14 14 18 18 • This projector uses a micro computer. External noise may cause it to malfunction. If this happens, unplug from the main power outlet and then plug on again. (☞ page 25, 27) 52

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62

52
Troubleshooting
Video image is fuzzy.
Video image is ab-
normally dark or
bright.
Color is poor or un-
stable.
The upper part of the
video image bows or
distorts.
Remote control unit
does not work.
Is the focus adjusted correctly?
Is the projector placed too near or too far from
the screen?
Are “Tracking” and “Phase” adjusted correctly?
Is the “Brightness” adjusted correctly?
Is the picture quality (color density, etc.) ad-
justed correctly?
Is the correct “Decoder” selected?
Are signals (scanning frequency, etc.) from the
connected device appropriate?
Is the [PC2] input terminal being used?
If the input signal comes from a computer sys-
tem, is this a sync signal of composite sync (Cs)
or G on sync type?
Are signals with much jitter or skew distortion
being input from a video deck?
Are batteries installed correctly?
Are batteries exhausted?
Is there an obstructive object between the re-
mote control unit and the remote sensor?
Is the remote control held too far from the sen-
sor?
• Adjust focus with the focus ring of the lens.
• Set the projector at the correct distance.
Adjust “Tracking” and “Phase” using the menu.
• Adjust “Brightness” using the menu.
• Adjust picture quality using the menu.
• Set the “Decoder” to “AUTO” or the correct
dedicated decoder.
• If the problem is not rectified after setting to
“AUTO”, set to forced dedicated mode.
• Check if the signal is appropriate (scanning
frequency, etc.), and input the appropriate sig-
nal.
When the [PC2] input terminal is being used,
“PC2(BNC)” must be selected from the
“Options” menu. Set it correctly according to
the input signal.
• Input separate sync signals for vertical sync
(V) and horizontal sync (H) signals.
• Input signals with little jitter or skew distor-
tion.
• Use a TBC or a device with a built-in TBC.
• Match the polarities of batteries correctly, as
shown on the battery cartridge.
• Replace with new batteries.
• Remove any shielding objects.
Use the remote control unit at a nearer point.
26
17
37
37
37
38
19, 20
39
19, 20
—————
14
14
18
18
This projector uses a micro computer. External noise may cause it to malfunction. If this happens, unplug from the main power
outlet and then
plug on again. (
page 25, 27)
Symptom
Probable cause
Corrective action
Page