Sony PVM1454Q Monitor Repaired
The complaint of this Sony Monitor was no power.
I opened the cover and you can see the internal section in the below photo :
The main fuse was good. I then checked and scanned the power section and found the power IC STRM6523 was blown! The front part of the power IC came off. The good thing is the part number still can be seen if not I have to search for the exact schematic diagram to locate the part number.
Usually when a power IC have problem, one should check on the corresponding components. I found all other parts to be good except the Optoisolator IC with the part number of PC111. Since I can’t locate the part number in my place I replaced it with 4N37.
Once the power IC and the Optoisolator IC were fixed, the Monitor came back to life again.
This article was contributed by M.Reza from Iran.
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