LG BH5140S Service Manual page 21

DIGITAL DISPLAY & MEDIA TRAINING MASTER
1-5. Blurry Picture
Distorted picture refers to the customer getting video, but there is a problem with the video.
What cables is the customer
using to connect the BD?
YES
Is the TV set to the correct input?
YES
Does blurriness appear when
watching multiple discs?
YES
Does blurriness appear when
watching a TV program?
YES
Does blurriness appear when the
BD is connected to another TV?
YES
Has the customer tried another
set of cables?
Determine what cables the customer is using to connect the BD to the TV
and if connected properly. Refer to OM for connections. Tighten any loose
NO
cables. Make sure the customer is not connecting a BD to VCR or BD to
DVD Recorder. Copy protection can distort the picture on older VCR
Make sure the TV is on the correct input. Turn TV off, then on to
NO
determine input. Video when using composite, or component.
DVI when using DVI, and HDMI when using HDMI.
One disc displaying the issue is a problem with the disc. Multiple discs
NO
displaying the problem could indicate the BD lens needs to be cleaned.
Recommend the customer use a lens cleaner on the BD. A lens cleaner is
available at any local electronics retailer.
Blurriness appearing when watching a TV program indicates an issue
NO
with the display. If the TV program is fine, then connect the BD to another
input on the display to determine if the problem is following the BD.
Connect the BD to another TV and play a disc. No blurriness during disc
NO
play back indicates a problem with the first TV. Please refer to the owners
manual for instructions on how to connect the BD to a TV. If the BD has a
problem on the second TV, then see service chart for service information.
Have the customer try another set of cables. A bad cable can also cause
NO
video problems. Test the cable with another device to the TV to also
determine if the TV is bad. If BD is problem, please see service chart for
2-6
models
service information.