Troubleshooting - Philips BDL4230E/00 Service Manual

Symptom
No picture is displayed
Interference displayed on the
monitor or audible noise is heard
Color is abnormal
Picture is distorted with abnormal
patterns
Display image doesn't fill up the
full size of the screen
Can hear sound, but no picture
Can see picture but no sound is
heard
Some picture elements do not
light up
After-Images can still be seen on
the monitor after the monitor is
powered off. (Examples of still
pictures include logos, video
games, computer images, and
images displayed in 4:3 normal
mode)

Troubleshooting

Possible Cause
1. The power cord is disconnected.
2. The main power switch on the back of the
monitor is not switched on.
3. The selected input has no connection.
4. The monitor is in standby mode in VGA mode.
Caused by surrounding electrical appliances,
cars/motorcycles or fluorescent lights.
The signal cable is not connected properly
1. The signal cable is not connected properly.
2. The input signal is beyond the capabilities of
the monitor.
The zoom mode is not correctly set.
Improperly connected source signal cable.
1. Improperly connected source signal cable.
2. Volume is turned all the way down.
3. MUTE is turned on.
4. No external speaker connected
Some pixels of the display may not turn on.
A still picture is displayed for an over extended
period of time
BDL4230E LCD
Remedy
1. Plug in the power cord.
2. Make sure the power switch is switched on. 3.
Connect a signal connection to the monitor.
Move the monitor to another location to see is the
interference is reduced.
Make sure that the signal cable is attached firmly to
the back of the monitor.
1. Make sure that the signal cable is attached firmly.
2. Check the video signal source to see if it is
beyond the range of the monitor. Please verify its
specifications with this monitor's specification
section.
Use the ZOOM MODE or CUSTOM ZOOM function
in the SCREEN menu to fine tune display geometry
and time frequency parameter.
Make sure that both video inputs and sound inputs
are correctly connected.
1. Make sure that both video inputs and sound
inputs are correctly connected.
2. Use VOL UP/VOL DOWN button to hear sound.
3. Switch MUTE off by using the MUTE button.
4. Connect external speakers and adjust the
volume to a suitable level.
This monitor is manufactured using an extremely
high level of precision technology: however,
sometimes some pixels of the monitor may not
display. This is not a malfunction.
Do not allow a still image to be displayed for an
extended period of time as this can cause a
permanent after-image to remain on the monitor.
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