This monitor is acting strange. I'm not sure where to start but i'll try my best.
When the monitor is first plugged with no soure it shows "seaching for signal". It will show this for 20 seconds or so until the backlight turns off and it goes into standby, just like normal. Hook the test pc up to it and it will show the bios and all the boot screens. Once windows starts it will briefly display my background then the screen goes black but the ccfl bulbs are still lit up. It will not show the desktop but it will show my screen saver but it flickers. While it's flickering sometimes the backlight will turn off but then back on. I pulled a few sets of used bulbs and it does the same thing with them. It also seems the screen saver is running slower than normal. It does this with the vga-d connector and the dvi-d. Now, if i run the computer in safe mode (600 x 800) it will show windows but it is choppy and still does the flickering. It also is splitting the screen meaning mirroring it.
I tested the voltage regulators on the mainboard and timing control board and they are all in tolerance. The connector going from the power supply to the mainboard has a few voltages i could check:
1)Vcc 5V -- i'm getting 5.06v
2)on/off -- i'm getting 3.291v
3)brightness -- i'm getting 3.263v
The caps on the power supply are a mixed bag of :
Su'scon SG & SH series
Samxon GK series
Lelon RZD series
The caps on the mainboard are:
Su'scon SK series
Jamicon TK & TL series
So the big question is.....Mainboard or tcon?
I don't know if a bad cap could cause this issue but i figured i would see if anyone has had any experience with this symptom. I am also curious to see if i am beating a dead horse.
When the monitor is first plugged with no soure it shows "seaching for signal". It will show this for 20 seconds or so until the backlight turns off and it goes into standby, just like normal. Hook the test pc up to it and it will show the bios and all the boot screens. Once windows starts it will briefly display my background then the screen goes black but the ccfl bulbs are still lit up. It will not show the desktop but it will show my screen saver but it flickers. While it's flickering sometimes the backlight will turn off but then back on. I pulled a few sets of used bulbs and it does the same thing with them. It also seems the screen saver is running slower than normal. It does this with the vga-d connector and the dvi-d. Now, if i run the computer in safe mode (600 x 800) it will show windows but it is choppy and still does the flickering. It also is splitting the screen meaning mirroring it.
I tested the voltage regulators on the mainboard and timing control board and they are all in tolerance. The connector going from the power supply to the mainboard has a few voltages i could check:
1)Vcc 5V -- i'm getting 5.06v
2)on/off -- i'm getting 3.291v
3)brightness -- i'm getting 3.263v
The caps on the power supply are a mixed bag of :
Su'scon SG & SH series
Samxon GK series
Lelon RZD series
The caps on the mainboard are:
Su'scon SK series
Jamicon TK & TL series
So the big question is.....Mainboard or tcon?
I don't know if a bad cap could cause this issue but i figured i would see if anyone has had any experience with this symptom. I am also curious to see if i am beating a dead horse.
Comment