Question about Dell UltraSharp 1701FP 17" LCD Monitor
Hi guys, I just got a free lcd panel from a friend who broke it recently. Its been dropped and the screen is cracked, but when I plug it into my laptop as a secondary monitor, I don't see anything on the broken lcd panel. The power buttons just kinda blink randomly - green for the power and amber of the brightness contrast buttons. I am pretty good at experimenting with electronics, so I did open the case up, and found out that the inverter is dead. For this reason, I have another inverter borrowed from a CCFL kit, and I found out that the tubes to burn, and you can see the white glow. But now that the screen glows, and I have the controller board hooked to my laptop as a secondary, when the board is powered up, I still don't see any image, and the LED's on the power button controller just blink randomly. Anyone got a remedy or solution for this?
Solution to a blinking orange power light indicator.
1. Check the fuse on the inverter board labeled F1. If it is opened then your inverter board has a problem. That's why the fuse is opened.
2. Remove the white wide cable connecting the main board and inverter board. Next plug the D-sub cable and power adapter and test. If the 2 green light indicators are solid green then your problem is positively coming from your inverter board.
Solution in fixing the inverter board:
In my case, the fuse was opened. So I first resoldered all the legs of the 4 transformers. Eight legs each transformer. Resoldered also the capacitor at the back of the inverter board. Checked the 2 diodes labeled (D3 and D13). One of them was shorted. So replaced it using Radioshack 3A 400piv. It is quite bigger in value but I just want to make sure it can handle the load of current.
Tip in checking a diode, it should always open using a digital tester.
That's it. re-assemble then test it again.
Triangle Tech Whiz
Posted on Jul 13, 2009
Hi my name is joel joely from etech vanuatu limited. my dell LCD monitor is just blinking power light on with orange light and also power switch not working if turn it on or off no display on screen.
my email address is [email protected]
Posted on Sep 11, 2008
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