Dell 2000FP Service Manual page 49

Dell 2000FP LCD Monitor Service Guide
Step Check item
1 Use source selection key to let S-Video
/ Composite video displayed with full
screen instead of PIP window.
2 Check if video signal is displayed
normally
3 Set PIP feature active and set PIP
settings like PIP Brightness and PIP
Contrast correctly. See if the problem is
solved
Keys not working troubleshooting
Normal operation
The 8 keys on the monitor are for Power On/Off, Auto-adjust, Source Selection, and OSD controls.
Troubleshooting scope
This troubleshooting applies to the case that image is displayed on the screen normally but some of the key
functions are not working properly.
Step Check item
1 Check if the control board and wires are
connected well
2 Check if CON115 and CON109 are well
connected with the wires.
DDC troubleshooting
Normal operation
The monitor can be detected by Plug-and-Play Windows system. Graphics cards normally need valid EDID
data to be detected before the DVI port can be activated.
Troubleshooting scope
This troubleshooting applies to the case that the monitor cannot be detected by PNP Windows system.
Step Check item
1 Check if the D-SUB / DVI signal cable
is good.
2 Use DDC programming equipment to
dump EDID and see if EDID can be read
out.
3 Check if EDID content is correct.
Yes
-
Step 3
CND / The monitor is good.
Yes
Step 2
Check IC120 circuit.
Yes
Step 2
Step 3
Contact ACM.
5
Confidential
Trouble Shooting
No
-
S-Video / Composite video
troubleshooting
Contact ACM
No
Fix the wires.
Fix the wires.
No
Replace with a good cable.
Check IC104 circuit for D-SUB
port and IC402 for DVI port.
Keep the serial number and re-
program the EDID.
Note
Note
Note