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Dell 2000FP LCD Monitor Service Guide
Categorizing the problem before troubleshooting
Step Condition
1
The monitor is connected to
the adaptor
2
The monitor is connected to
appropriate signal source and
the power button is pressed
3
Picture is displaying but not
good
4
Picture is displaying normally
5
No DDC
Abnormal LED troubleshooting
Normal operation
Right after the adaptor is connected to the monitor, all the LEDs will turn on for less than 3 seconds and then
turn off.
Troubleshooting scope
This troubleshooting applies to the case that all the LEDs are permanently on after the adaptor is connected.
Step Check item
1
The LEDs are on permanently
2
IC113 is working and there is a valid
clock output on pin 5
3
There is clock waveform on the 2 pins
of Y103
4
The LEDs are working normally
*Note: If the LEDs are not working, the image processor U1 and related ICs may not be working normally.
Power not good troubleshooting
Normal operation
The LED on the AC adaptor is on. The monitor is connected correctly to the adaptor. After the power key is
pressed, the power LED (green color) turns on and works normally.
Troubleshooting scope
Symptoms
All LEDs are on
LED is not working correctly
No splash screen / No video
Picture on D-SUB is not good
Picture on DVI is not good
Picture on S-Video is not good
Picture on Composite video is not good
Picture on PIP is not good
Press menu key but there is no OSD
Source selection key is not working
Auto adjustment key is not working
OSD control keys are not working
PC system doesn't detected the correct
monitor name
Yes
Step 2
Replace IC123 and go to Step 4 Step 3
Replace IC113
Go to step 4
Problem solved
1
Confidential
Trouble Shooting
Troubleshooting category
Abnormal LED troubleshooting
Power not good troubleshooting
No video troubleshooting
D-SUB troubleshooting
DVI troubleshooting
S-Video troubleshooting
Composite video troubleshooting
PIP troubleshooting
Keys not working troubleshooting
DDC troubleshooting
No
Beyond the scope
Replace Y103
Go to step 4
Contact ACM
Note
*