Hi All,
UPDATE: post was moved to new thread, so editing it ^^'
I'm a totally new to electronic repair, I do play a bit with arduinos, 3d printers, esp32 ... but I'm generally more on the coding/software side for hobby ^^" my electronic skills do not go much further for now ^^'
I decided to start doing some repair, just to avoid throwing things to trash ...
Since I have a broken lcd monitor, I decided to try to get this thing to work for a start ^^"
I have a dell P2412Hb, which seems to be similar setup than the one on this thread https://www.badcaps.net/forum/showthread.php?p=1267967 , but seems that the panel and the tcon board are not the same.
When you apply power to the monitor, the screen do get power (power button gets blue at start), on the screen you can see briefly the dell logo ... which disappears quickly after.
The more you attempt to boot the screen, the quicker the dell logo disappears ...
Once the logo disappears, the screen stays black, nothing is shown. The power led stays blue if the monitor is connected to a computer. The computer detect correctly the monitor. if you unplug the computer, the power led of the monitor turns orange after some seconds.
Following that, I assumed that the control board seems to work correctly, and though that it could be some issue with the power board that would not power the panel correctly, so I first look into the power board a bit.
I firstly checked the capacitors ... they all seem to be OK, since in order to test a capacitor, the best is to un-solder them first, and since this screen is quite old and I have several capacitor kits at my disposal ... I decided to simply replace then and see if it would correct the issue ... it did not ^^'
I started looking around, searching on the tcon board if some smd cap would be shorted ... did not find one ...
On another thread talking about 2412MB board, they talked about a fuse on the tcon board, where would it be located ?
UPDATE: since it powers/shows something on screen quickly ... I doubt it would be a fuse ... right ? .. ^^' ...
Could it be the backlight ? that would turn only on briefly ? but if it would be the backlight ... I would suppose that I should see at least something on the screen ? not a total black screen ? no ?
Since I'm a totally newbie in repair ... does some good soul would have any advice to where to look ?
Thanks a lot for any given advice ^^'
Cheers all,
UPDATE: post was moved to new thread, so editing it ^^'
I'm a totally new to electronic repair, I do play a bit with arduinos, 3d printers, esp32 ... but I'm generally more on the coding/software side for hobby ^^" my electronic skills do not go much further for now ^^'
I decided to start doing some repair, just to avoid throwing things to trash ...
Since I have a broken lcd monitor, I decided to try to get this thing to work for a start ^^"
I have a dell P2412Hb, which seems to be similar setup than the one on this thread https://www.badcaps.net/forum/showthread.php?p=1267967 , but seems that the panel and the tcon board are not the same.
When you apply power to the monitor, the screen do get power (power button gets blue at start), on the screen you can see briefly the dell logo ... which disappears quickly after.
The more you attempt to boot the screen, the quicker the dell logo disappears ...
Once the logo disappears, the screen stays black, nothing is shown. The power led stays blue if the monitor is connected to a computer. The computer detect correctly the monitor. if you unplug the computer, the power led of the monitor turns orange after some seconds.
Following that, I assumed that the control board seems to work correctly, and though that it could be some issue with the power board that would not power the panel correctly, so I first look into the power board a bit.
I firstly checked the capacitors ... they all seem to be OK, since in order to test a capacitor, the best is to un-solder them first, and since this screen is quite old and I have several capacitor kits at my disposal ... I decided to simply replace then and see if it would correct the issue ... it did not ^^'
I started looking around, searching on the tcon board if some smd cap would be shorted ... did not find one ...
On another thread talking about 2412MB board, they talked about a fuse on the tcon board, where would it be located ?
UPDATE: since it powers/shows something on screen quickly ... I doubt it would be a fuse ... right ? .. ^^' ...
Could it be the backlight ? that would turn only on briefly ? but if it would be the backlight ... I would suppose that I should see at least something on the screen ? not a total black screen ? no ?
Since I'm a totally newbie in repair ... does some good soul would have any advice to where to look ?
Thanks a lot for any given advice ^^'
Cheers all,
