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My SONY SDM-HS73 monitor screen keeps flashing ( it goes black then back to normal every 1-3 seconds ). The power light remains green but the screen keeps flashing. After I boot the computer the screen flashes really fast then after a few hours it slows down a bit, but still continues to flash. This is very annoying and can sometimes last a whole day. Is this something I can fix myself or will I have to get a new monitor ? Please help Thank you.

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Common problem in the 73/93 is poor soldering works in the Lamp assemblies. See pictures here:
http://s807.photobucket.com/albums/yy352/budm/Sony%20SDM-HS73/
You should also inspect the inverter board also for loose connections.

Posted on Apr 29, 2010

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Common problem in the HS73/93 is bad soldering works in the lamp assemblies, see my pictures here:
http://s807.photobucket.com/albums/yy352/budm/Sony%20SDM-HS73/

But look for bad caps (leaking/bulging top) first in the power supply section.
http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

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I f you see the message on the screen indicating 'NO INPUR SIGNAL', you need to check the VGA cable and both ends of the connectors also. Try this monitor with other PC also.

This SDM-HS73/93 have common problem: bad backlight assemblies due to poor workmanship in sodlering works, see my pictures below. You should also inspect the caps. This is not recommend for DIY.

http://s807.photobucket.com/albums/yy352/budm/Sony%20SDM-HS93/

http://s807.photobucket.com/albums/yy352/budm/Sony%20SDM-HS73/

http://s807.photobucket.com/albums/yy352/budm/Sony%20SDM-HS73/

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Six years excellent service then the screen went black except during start-up the start-up screen flashed om and off, and remained black through the Windows start. The screen did flash on for a second on...


You may have failed backlight inverter circuits, caps failure in the power supply, or bad lamps. Here is the service manual: http://www.eserviceinfo.com/downloadsm/22184/SONY_SDM-HS73.html
You will need to open it up and take some voltage measurement in the power supply first to make that you do have correct DC voltage feeding the inverter PCBA.

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there may some spike(voltage goes above 1000v for few microsecond) come from electricity board
which may damaged colors ic you have to replace it and connect spike arrester before pc

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bratty, do you have a pic on which capacitor this is? Also where I can find a replacement one.

My monitor is doing the same thing, nice and bright for 1/2 a sec then goes super dull, you can barley see anything.

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