Question about HP L1955 19" LCD Monitor
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Posted on Jan 02, 2017
SOURCE: Hp L1955 LCD monitor
Check the capacitors on the power supply if any on the secondary side are bulged replace them all with low ESR substitutes. Panasonic FC work well.
Also check the transistors around the inverter output transformers there are two on each side. Check them with the diode function of your DMM if any measure shorted replace both in the pair. You can find these on e-bay.
That is a power board / inverter assembly getting it would be extremely hard not to mention expensive.
Posted on Nov 23, 2007
Its a problem with the inverter. check the 4 transistors, C5707 near the connectors for the backlight. If none are defective, look for the PF751 FUSE. It sure to be busted.You can replace that with another 3A fuse. Remember, you should only replace the fuse if you are certain there are no busted transistors in the inverter board. Otherwise, you now have a refurbished Benq Monitor
Posted on Jan 07, 2008
I have this monitor currently and I ordered another one off ebay and I am also in search of another power supply for the one that I purchased. Since I alredy have one I know that the one that works with my current monitor is manufactured by a company in china called Linearty Electronics and this link: http://www.linearity.com.tw/EPmenu_LAD6019.html is to a spread sheet that list the model that was packaged with the 19" Balance Monitor. (or at least the one that came with my monitor). The model # for the power supply is LAD6019AC3 it's 15v DC 4A. The website gives no information about how to order it via them but they have a contact page that gives a sales email addy as well as hr and gen inquiries. I have sent an email today to see if they can direct me in the right direction to get a power supply for this monitor. Hint: If you got to the site you will have to change the language to english on the main page of the site since this company is a chinese company their site will automaticy come up in chinese except for the word english that the top that will convert the site to english. I will post another response if I hear back. I sent the email just a few minutes ago.
Posted on Jan 24, 2008
arrange the manual from any where with same model and find it .without looking directly i cannot advice anything try to understand
Posted on Oct 30, 2008
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