Question about LG L1930B 19" LCD Monitor

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I have a L1930b with a bad panel. I have a panel that will fit this monitor but it is an LM190E03-B4, which takes 5V input, whereas the original panel takes 12V input. The power inverter is a Lien Chang AI-0066.PCB Rev:H. Can someone tell me how to modify this inverter to output 5V so I can use this panel?

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You can use the 5vdc from the monitor power supply
Service manual: http://elektrotanya.com/?q=showresult&megnev=lg&megnev2=L1930B%20&kategoria=&kat2=all

I look at the diagram page 31, pin 1~3 is the VCC for the panel with notes for 12/5vdc, it can be connected to the 12 or 5vdc, so it must have a jumper on the board somewhere that will let you choose 12 or 5vdc for the panel, the main thing is that the rest of the panel pins match the original panel, please verify that first.

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Posted on Sep 09, 2010

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May 25, 2010 | LG L1930B 19" LCD Monitor

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Hi there,
I had the same problem with the exact same model of Gateway 19" LCD. Likely this is the same issue you're experiencing, and I hope you're able enough with a multi-meter and soldering iron to fix this issue, or willing enough to tear this thing down to its components and at least try to fix it.... otherwise you have a fancy dead-weight object on your hands/desk.

In my case, the 5V power was fried so I actually inserted a 5V 2A power supply inside the monitor housing and soldered the +5V and GND leads to the marked connector pins that connect the power board(larger) to the vga signal board(much smaller). I stripped the guts from the 5V power supply so it would fit easier, and then stole power from the 120v monitor input and directly wired that to the wires that were hooked to the 120v power supply prongs(after removing those prongs as well). The monitor looks and functions as if it were brand new, there's nothing extra hanging out and no bulges anywhere. It works excellent.

Aside from my more-so hackful approach, here's some links and quotes, from other sites, from people who know what components to replace on the power board and still achieve a well-working end result.

From: http://www.topix.com/forum/tech/TNTK13PFRQURRRJJC/p4
Sure-power wrote:
I repair the Gateway FPD1960, FPD1975W and FPD2185W monitors. You can contact me at sure-power@nc.rr.com if interested. If you can remove the power/inverter board it will save $$ on shipping costs. I have sucessfully repaired hundreds of these monitors. From: http://gatewaymonitors.blogspot.com/2007/09/gateway-monitor-recall.html
Russ said... Thank you Michael & Germel & everyone else for your help. I replaced the 5 470microfarad and 4 220microfarad caps on the FPD1960 and it works again. If your in the Metro Detroit area I can perform this repair for $60 onsite.

(insertabovename)@gmail.com
June 19, 2008 10:57 AM icon_delete13.gif b16-rounded.gif Russ said... russix

at

G Mail

Dot

Com

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1 Answer

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Hi publicworker,

I had a similar problem whereas my monitor went to sleep mode after a few minutes. I'm running an HP LP 2065 in dual mode with another HP flat screen. However, I did resolve the issue after resetting the output settings.

How to do that:
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Maybe some changings/modification will help you too.

Stefan

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Hola.., parece su panel están defectuosos... reparado le costará lotes de $$$... Simplemente comprar uno nuevo... salvado el headached y $$$... Tienen un buen día!

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1 Answer

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