- #DELL STUDIO ONE 1909 DISASSEMBLY HOW TO#
- #DELL STUDIO ONE 1909 DISASSEMBLY FULL#
- #DELL STUDIO ONE 1909 DISASSEMBLY PLUS#
I ran into further problems the various diffusion and polarizing layers would not lay flat and were bunched at the edges, the LCD glass screen was slightly out of position, and the entire panel itself would not close properly - the two metal halves would not press together and snap shut.
The solder joints were fine, but both ends of the CCFL tube were black inside.Īs an interesting experiment I tried to reverse the process, reassemble the panel with the bad CCFL, just to see if I would have been able to put it back together if I had decided to buy a new CCFL. In the end this didn't matter as the problem was a bad CCFL and not the solder joints. The CCFLs and wires were both glued and kapton taped in place, and despite my best efforts the metal bracket got bent trying to remove the CCFL. The biggest problem was trying to get the CCFLs out of the small metal bracket. There are far more parts, pieces, and layers than I was expecting. I was unprepared for how difficult this work is.
#DELL STUDIO ONE 1909 DISASSEMBLY FULL#
And the downside to replacing the CCFL is I may spend the $20 to buy the parts for a repair I've never done only to fail and still have to buy the full panel.Īnyway, I started disassembly hoping to find bad solder joints.
#DELL STUDIO ONE 1909 DISASSEMBLY PLUS#
The replacement CCFL plus s/h would run about $20 for a single tube, but on eBay brand new replacement panels cost between $40 and $50 shipped. Before disassembling the LCD panel I told myself if the problem was bad solder joints I would try and repair, but if the problem was a bad CCFL tube I would not try and repair it even though you can buy replacement CCFLs. I'm back from my trip and I've had a chance to look at this panel. When the backlights are on, there is a slight buzzing noise from the monitor.Īttached a picture of the inside of the computer, as well as close-up shots of the inverter. The connectors are different, but if I adjust the connectors to fit can I just plug those in and try it? I've never swapped CCFLs between monitors before, so I don't know if this will work. I have two similar sized CCFLs salvaged from another monitor.
#DELL STUDIO ONE 1909 DISASSEMBLY HOW TO#
I'm looking for ideas on how to test/diagnose this further. Since the signals from the motherboard to the inverter look right, I'm pretty sure the problem is either the inverter or the CCFLs. I suspect this is the backlight brightness level. I suspect this is the signal from he motherboard to turn on the backlights.Ħ - When you first turn it on the volts are 1.6, then after a few seconds it goes up to 3.3 and remains steady.
The pins aren't labeled, but I ran tests and figured each out.ġ and 2 - Both have a solid 12.1 volts during operation.ĥ - When you first turn it on the volts are 0, then after a few seconds it goes up to 3.2 volts and remains steady. The inverter board is a small board with a 6-pin connector to the motherboard.
Taking the back off I first looked at all the caps, especially those on the power supply and inverter boards (less concerned with the caps on the computer motherboard). If I shine a flashlight into the screen after it goes black I can still see the image. If you connect an external monitor the system works fine, so I know the problem isn't the computer side of things. The problem is when you turn it on the screen comes up for about 5 seconds and then goes black. My latest project is a Dell Studio One 1909, it's a 19" all-in-one computer/monitor.
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