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No power my LCD TV monitor 900t

Pls help me... for the diagram of PSU....THANKS to anyone who can help me...

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Well, that looks like you have what we call a dry joint on the power supply connector of your monitor. With experience , i have discovered this to be a normal problem. Get a compute technician to open up the monitor for you and then take a closer look at the circuit board where the power supply is connected. Check for any dry joints (this means that there is a component on the circuit board that is directly related to power supply, and it is not properly attached to the board (soldered). Notice all the dry joints and use a soldering gun to put them back together and try to power the monitor. Check also for bulged or leaking capacitors. Replace them with the same type

Posted on Feb 21, 2012

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6ya6ya
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Posted on Jan 02, 2017

MarkDay
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SOURCE: sony SDM-M81/B 18" LCD Monitor (Black)

Sony does not sell replacement parts to the general public, only a Sony authorized repair center can get you these parts.

Posted on May 16, 2008

SOURCE: I have a proview lcd

For the above LCD Monitor, I actually saw a small spark at the top part of the main board once the power input jack was connected. It prompted me to the exact location and when I check the SMD ceramic capacitor (that generated the spark underneath it) with analog meter set to X 10 K ohm range; it actually developed a slight short circuit. Replacing only the fuse and the SMD ceramic capacitor solved the no power problem in this 19" LCD Monitor. This Monitor uses the inverter IC (OZ960G), A1084-25CM (2.5 volts voltage regulator), AMC1117-3.3 (3.3 volts voltage regulator), ADC IC (MST8136B) and CPU IC (MYSON MTV312MV64).

Posted on Oct 07, 2010

budmrtn
  • 11361 Answers

SOURCE: i have samsung lcd monitor 17" . my lcd problem

You can look through here for service manuals:
http://elektrotanya.com/?q=showresult&megnev=Samsung%20&megnev2=710N%20&kategoria=monitor&kat2=schematics

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
Please leave rating if it helps.

Posted on Jan 05, 2011

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For the above LCD Monitor, I actually saw a small spark at the top part of the main board once the power input jack was connected. It prompted me to the exact location and when I check the SMD ceramic capacitor (that generated the spark underneath it) with analog meter set to X 10 K ohm range; it actually developed a slight short circuit. Replacing only the fuse and the SMD ceramic capacitor solved the no power problem in this 19" LCD Monitor. This Monitor uses the inverter IC (OZ960G), A1084-25CM (2.5 volts voltage regulator), AMC1117-3.3 (3.3 volts voltage regulator), ADC IC (MST8136B) and CPU IC (MYSON MTV312MV64).

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This of course would require a fair familiarity of electronic components/circuitry and safety procedures, use of a DVM and a soldering iron. It would be to your added advantage access to a service manual or at the very least a schematic diagram with voltage readings. Should you be uncomfortable performing a DIY (do-it-yourself), perhaps your best bet would then be to seek the services of a qualified professional.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information. Good luck and kind regards. Thank you for using FixYa.

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