Hi guys. I have an Amstrad 1640ECD. The monitor internally is in perfect condition and I have changed all the electrolytic capacitors. The problem I have is that I can not adjust the horizontal screen size to 350 lines resolution. At a resolution of 200 lines the monitor shows correctly. The monitor …

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Hi to everyone. I am searching this kind of transistor (photos). I dont know the type of transistor and i cant find any info. Can somebody help me? This Psu is from a Compaq portable https://i.ytimg.com/vi/2YO-BCqPqs4/maxresdefault.jpg computer . Do you know if schematics are available for compaq …