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Next: Hardware Help: Rdram Memory Pairs Help
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Joined: May 02, 2008
Posts: 2
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(Msg. 101) Posted: Fri May 02, 2008 1:16 pm
Post subject: I changed capacitors and now the problem is back [Login to view extended thread Info.]
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Hi, before anything I would like to thank all of you in this thread for all your excelent ideas how to fix the flickering issue with the FPD1830. A had the same problem yesterday so I followed all the instructions and I changed the four capacitors for 100mf/25 volts and WOW! I came to life again, excelent. It worked for few hours and the it flickered to times and the image wnet off! it went completly black. Now it would turn on (green light or ambar light if there is no signal) but it would stay black, there is no image in the back, nothing, the only clue of life is the red or ambar light.
This morning I replaced the capacitors again with new 4 one of 100mf and 35 volts, it did no change, the problem is the same...
Please any other ideas?
BIG THANKS TO ALL!
Carlos |
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Joined: Dec 07, 2002
Posts: 8557
Location: Southern California
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(Msg. 102) Posted: Sun May 04, 2008 4:24 am
Post subject: Re: I changed capacitors and now the problem is back [Login to view extended thread Info.]
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Hello,
I am assuming a green LED light means that a signal is being received by the LCD display. Do you still get a green LED light when the monitor is connect the display to the computer?
If so, look at the LCD monitor from an angle in a well-lit room or shine a flashlight on it. Do you now see a faint image? If so, then it sounds like the backlight has failed and needs to be replaced.
Regards,
Aryeh Goretsky |
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Joined: May 02, 2008
Posts: 2
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(Msg. 103) Posted: Sun May 04, 2008 10:02 am
Post subject: Re: I changed capacitors and now the problem is back [Login to view extended thread Info.]
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Nope, I don´t see any image, as before I changed the capacitors where I could see the image in the background. I did the test of checking the F1 resistance, just near the capacitors, and it had 12 volts on one side and 0 at the other (I found this in other forum, where the guy had all the same problems as mine). So, taking from that case, and because the resistence is bunded to the converter board and can not be replaced, I ordered a new one (wich in fact, does not have the capacitors any more) from ebay for about US $40, expecting it to arrive en few days so I´ll let you know how it did
thanks for your response |
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Joined: Jun 05, 2008
Posts: 1
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(Msg. 104) Posted: Thu Jun 05, 2008 5:48 pm
Post subject: [Login to view extended thread Info.]
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Sorry boys and girls, but the problem is NOT with the video card. The problem is within your inverter. I just finished replacing the radial capacitors as suggested by a tech from GATEWAY to no avail. The monitor still comes on for a few brief seconds and then goes black. Something else is keeping the monitor from coming on for more than a few seconds.
My next option is to pull the unit apart and thoroughly check the power supply and all of the connections again. Whatever it is, I'll find it and report back here to you. I do remember a site that sold lcd tubes for $10 each and new power supplies and inverters for $40 on up to $80 if I remember right.
Back at you later with new intel when I have it. |
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Joined: Nov 29, 2007
Posts: 792
Location: Central FL, USA
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(Msg. 105) Posted: Sat Jun 07, 2008 9:18 am
Post subject: [Login to view extended thread Info.]
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For at least 99.999% of the LCD monitor failures, the backlight power supply is at fault. The same thing happens in laptops and has been happening for as long as there has been laptops with LDC monitor screens. I've replaced many of them.
The biggest problem with many of the new monitors is that they are made in China by the lowest bidder, with the cheapest parts available. 
Electronic components are under-speced and over-worked and will fail.
For most of those monitors, the manufacturer does NOT supply repair parts to the US Vendors. I've had to throw many LCD monitors into the dumpster because NO Backlight supplies were available.
If you can find repair parts for your own monitor....GREAT, but I'd not want to bet good money on it.
Good Luck,
The Doctor  |
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