Troubleshooting

Symptom

Probable cause

Corrective action

Page

 

 

 

 

Video image is fuzzy.

Is the focus adjusted correctly?

• Adjust focus with the focus ring of the lens.

26

 

 

 

 

 

Is the projector placed too near or too far from

• Set the projector at the correct distance.

17

 

the screen?

 

 

 

 

 

 

 

Are “Tracking” and “Phase” adjusted correctly?

• Adjust “Tracking” and “Phase” using the menu.

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.

37

stable.

justed correctly?

 

 

 

 

 

 

 

Is the correct “Decoder” selected?

• Set the “Decoder” to “AUTO” or the correct

38

 

 

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

19, 20

 

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,

39

 

 

“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

19, 20

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?

• Match the polarities of batteries correctly, as

14

does not work.

 

shown on the battery cartridge.

 

 

 

 

 

 

Are batteries exhausted?

• Replace with new batteries.

14

 

 

 

 

 

Is there an obstructive object between the re-

• Remove any shielding objects.

18

 

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.

18

 

sor?

 

 

 

 

 

 

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

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Image 52
JVC DLA-HX2U, DLA-HX2E manual Troubleshooting, Symptom Probable cause Corrective action