replacing smps component

With that much damage obvious just by visual inspection, I'd suspect that the other boards also have damaged components.

I might try to use some alternate power supplies to see if the monitor can display an image before attempting to locate parts for the SMPS.. even if the image might only be the OSD on-screen display stating "no input signal" could be considered a good sign, indicating that the other boards might not be damaged (a definite maybe).

Many LCDs only need a couple of voltages to operate.. some may be minus (-) supplies, but other than correct polarity, fairly common voltages.

Even some batteries (in various numbers wired in series) may be adequate for testing.

-- Cheers, WB .............

Is the power supply integral to the monitor or is it an external table mounted brick? If it's a brick, your best (and cheapest) sollution is to fiind a suitable replacement. If it's a brick, what is the output voltage and current (shown on the label)?

Mouser

Long (and often bitter !) experience of repairing switchers for a living, would cause me to say that with that sort of level of primary side failure, successful - and reliable - repair, is unlikely to be practical.

Sorry :-(

Arfa

I just did it, the LCD requires only +5 and +12 and the HV for backlight. Unfortunately the inverters for the backlight are on the smps board so the screen remained dark but I coul see some activity in the dark. Hard to tell if everything is ok, but there's some life. I think I'll order a complete smps replacement board from china (which will last a couple of years again).

Thanks

Frank IZ8DWF