APPENDIX
26
P
PC
C M
Mo
od
dee P
Prro
ob
blleem
mss
■
Adjust resolution, horizontal frequency, or vertical frequency.
■
Check the input source.
■
Work the Auto configure or adjust size, phase, or H/V position. (Option)
■
Check the signal cable.
■
Reinstall the PC video card.
The signal is out of range
Screen color is unstable
or single color
Vertical bar or stripe on
background &
Horizontal Noise &
Incorrect position
Picture OK & No sound
Unusual sound from
inside the product
No sound
when connecting
HDMI/USB
No output from one
of the speakers
A
Au
ud
diio
o P
Prro
ob
blleem
mss
■
Press the VOL or VOLUME button.
■
Sound muted? Press MUTE button.
■
Try another channel. The problem may be with the broadcast.
■
Are the audio cables installed properly?
■
Adjust Balance in menu option.
■
A change in ambient humidity or temperature may result in an unusual noise
when the product is turned on or off and does not indicate a fault with the
product.
■
Check HDMI cable over version 1.3.
■
Check USB cable over version 2.0.
■
Use normal MP3 file.
*This feature is not available for all models.
Z42PQ20-U 9/21/09 2:51 PM Page 26
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