Re: Dell 1704FPT - Flickering and hissing



And excelent idea, assuming the transformers are the same between the 1703 and the 1704FPT.

I did find a refurbished board online for £30, but as my replacement monitor only cost £69 it wasn't worth it in my opinion... [url]http://www.codemicro.com/store/product/BP/Dell-ptb1511-Refurbished.php[/url]Re: Dell 1704FPT - Flickering and hi...ard online for...

Re: Dell 1704FPT - Flickering and hissing



No, the cable is just tucked down behind the wooden block the board is sat on.



I've come to the same conclusion regarding getting a replacement transformer.

What I'm considering doing is using the perfectly good panel to build a DIY video projector.

I noticed the cable, from the power supply to the control board, has a wire marked BACKLIGHT_EN. I suspect this is a simple logic level signal to turn the inverters on/off (such as when the monitor goes into standby...

Re: Dell 1704FPT - Flickering and hissing



Which cable is this? The one with many many tiny wires, that goes between the LCD and the main control board?





Visually, they look fine....

Re: Dell 1704FPT - Flickering and hissing



The leads from the lamps are only just long enough to go to their current locations. I cannot see any easy method to swap them round.



Yes, I realise the transformer itself cannot be repaired. I was refering to the monitor in general.

If I cannot swap the lamps round, would disconnecting the lamp from the faulty transformer help? With the lamp disconnected, would the hissing continue if the transformer is faulty?...

I have a Dell 1704FPT 17" LCD Monitor that I purchased new in 2005.

Yesterday morning it started flickering (as if one of the two backlight lamps was switching on and off) and it was almost making a noticeable hissing noise.

Having ordered a replacement monitor, I thought it would be interesting to disassemble this one to see if I could fix the problem, as the monitor is otherwise in good working order.

Having carefully taken the monitor apart, I carefully reconnected the power supply and control boards, and powered up the monitor. The flickering...