MSX problem!

[Arkhan]

well, id never turn down buying another sony msx....

but ah, did you ask bas about that monitor? A few monitors Ive tried in the past, all of the Commodore variety, turned out to be randomly incompatible, so maybe confirm your monitor with him.

[ave]

I asked him but it's the right one. The Philips monitors are frequently used for older RGB devices such as home computers or Mega Drive, PC-Engine et cetera. He even sells the exact same model as MSX accessory.

However, I've found a weird solution for the actual RGB problem:



I resoldered joints #1 & #2 near C34 how Jipe (msx.org) suggested, but it didn't help. I hooked it up via RCA prior to RGB and didn't remove the RCA cable when I tried it with RGB. Miraculously I was confronted a PERFECT RGB IMAGE all of a sudden!!



When I remove the RCA cable from either the monitor or the MSX, the image starts flickering again. With both cables connected, however, the picture is stable and is not disturbed even when I touch or move the DIN plug around a bit.

I am no electronics freak but that seems to me like a grounding problem of the Video area. Or maybe the MSX takes the V-synch from the cinch cable b/c it doesn't work on the RGB out? I've no idea, but at least it works after all!


Cheers!

[Arkhan]

Oh, thats a solution I have used in the past to ghetto-rig cables, lol.


That probably means the monitor itself has a dodgy connector and the sync isn't strong, or isn't syncing at all!.

I advise using this RCA for sync solution. Don't open the monitor. Blowing your self up over it isnt worth it.

I made a cable one time that is both the RGB and RCA in one cable so its a bit neater. You can mimic that with a few zip ties or some tape.

[blue lander]

I've used a lm1881 in the past when a computer was outputting a weak or screwy sync signal. It's normally used for splitting a sync signal, but it'll generate its own sync pulses if the input sync is too weak.

[Arkhan]

yes, the lm1881 is the preferred method of fixing CSYNC problems

but its also a PITA if you're not good at that sorta thing.


nothing beats jamming an RCA cable into a hole and being good to go!