bought this thing on eGay... (30€ including shipping)
15" Hyundai ImageQuest L50A LCD made in sep. 2001
the power LED was flashing on and off all the time (sometimes green, sometimes orange)..
i opened up the external PSU and well.. thats what i found in there
(notice the almost black crap between those 16V 1000uF Daewoos)
http://bambooz.pytalhost.net/badcaps...i/daewoo-1.jpg
http://bambooz.pytalhost.net/badcaps...i/daewoo-2.jpg
http://bambooz.pytalhost.net/badcaps...i/daewoo-3.jpg
http://bambooz.pytalhost.net/badcaps...i/daewoo-4.jpg
cleaned the pcb and put some new OSTs in there (i didnt want to waste much money on that thing
)
well.. the voltage still drops from 12V to about 8 to 9V as soon as i connect the LCD -.-
and the 5V rail drops to a bit more than 4V.
resulting in the LCD instantly turning off when the backlight should turn on (too much load i guess) and then back on... endless loop...
the only cap i couldn't replace was that "king-size" 400V 68uF Daewoo because i had nothing similar rated here and the next electronics store is about 30minutes by bus
well.. then i remembered that i had an external USB HDD case with a f**ked up controller (recognized as "unknown USB device")..
bingo! 12V 2A and 5V 2A
desoldered the connector of the original psu pcb and soldered the cables to the USB HDD case psu...
LCD turns on... "No Signal"
ugly solution (cable mess) but it works
but hey... i was way too optimistic.. i connected my old Pentium 100 Laptop (really handy for testing as the battery still lasts 2 hours ^^) with a test-picture in fullscreen..
whoa.. everything messed up
http://bambooz.pytalhost.net/badcaps/hyundai/001.jpg
http://bambooz.pytalhost.net/badcaps/hyundai/002.jpg
http://bambooz.pytalhost.net/badcaps/hyundai/003.jpg
and within windows.. (not on that P100 laptop
)
http://bambooz.pytalhost.net/badcaps/hyundai/004.jpg
http://bambooz.pytalhost.net/badcaps/hyundai/005.jpg
looks like some kind interference.. mostly horizontal..
hmmm.. but why the hell does the OSD show up without this interference!? o.O
http://bambooz.pytalhost.net/badcaps/hyundai/OSD.jpg
really weird... and the Auto-config doesn't help..
any suggestions for the PSU (what to search for or what to check because the voltage still drops with new caps) or the interference on the LCD...?
15" Hyundai ImageQuest L50A LCD made in sep. 2001
the power LED was flashing on and off all the time (sometimes green, sometimes orange)..
i opened up the external PSU and well.. thats what i found in there

(notice the almost black crap between those 16V 1000uF Daewoos)
http://bambooz.pytalhost.net/badcaps...i/daewoo-1.jpg
http://bambooz.pytalhost.net/badcaps...i/daewoo-2.jpg
http://bambooz.pytalhost.net/badcaps...i/daewoo-3.jpg
http://bambooz.pytalhost.net/badcaps...i/daewoo-4.jpg
cleaned the pcb and put some new OSTs in there (i didnt want to waste much money on that thing

well.. the voltage still drops from 12V to about 8 to 9V as soon as i connect the LCD -.-
and the 5V rail drops to a bit more than 4V.
resulting in the LCD instantly turning off when the backlight should turn on (too much load i guess) and then back on... endless loop...

the only cap i couldn't replace was that "king-size" 400V 68uF Daewoo because i had nothing similar rated here and the next electronics store is about 30minutes by bus

well.. then i remembered that i had an external USB HDD case with a f**ked up controller (recognized as "unknown USB device")..
bingo! 12V 2A and 5V 2A

desoldered the connector of the original psu pcb and soldered the cables to the USB HDD case psu...
LCD turns on... "No Signal"

ugly solution (cable mess) but it works

but hey... i was way too optimistic.. i connected my old Pentium 100 Laptop (really handy for testing as the battery still lasts 2 hours ^^) with a test-picture in fullscreen..
whoa.. everything messed up

http://bambooz.pytalhost.net/badcaps/hyundai/001.jpg
http://bambooz.pytalhost.net/badcaps/hyundai/002.jpg
http://bambooz.pytalhost.net/badcaps/hyundai/003.jpg
and within windows.. (not on that P100 laptop

http://bambooz.pytalhost.net/badcaps/hyundai/004.jpg
http://bambooz.pytalhost.net/badcaps/hyundai/005.jpg
looks like some kind interference.. mostly horizontal..
hmmm.. but why the hell does the OSD show up without this interference!? o.O
http://bambooz.pytalhost.net/badcaps/hyundai/OSD.jpg
really weird... and the Auto-config doesn't help..
any suggestions for the PSU (what to search for or what to check because the voltage still drops with new caps) or the interference on the LCD...?


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