Composite sync stripper for the schematic illiterate

[ProfessorProfessorson]

If anything is not correct on this, please feel free to revise it.

[burn_654]

Thanks, this is going to be pretty helpful for me in my rgb quest! 

[HercTNT]

Thanks, this is going to be pretty helpful for me in my rgb quest! 

agreed, thanks mike!

[PunkicCyborg]

I had my consoles hooked up to a pvm using a scart breakout board with a lm1881 built in but when i switched to a pvm2030 i got a new cable and it doesn't have one built in yet all my systems synced perfectly. What is thw point in using one?

[ProfessorProfessorson]

I had my cinsoles hooked up to a pvm using a scart breakout board with a lm1881 built in but when i switched to a pvm2030 i goa a new cable and it doesnt have one built in yet all my systems synced perfecly. What is thw point in using kne?

I think in Hercs case he is going to need it for his Genesis and that RGB to VGA converter. I guess some people just need the thing, and some dont.

[Drakon]

Cool guide-o

[broken]

I had my consoles hooked up to a pvm using a scart breakout board with a lm1881 built in but when i switched to a pvm2030 i got a new cable and it doesn't have one built in yet all my systems synced perfectly. What is thw point in using one?

While most PVM's work just fine with composite video as sync, some however don't. Some monitors like the NEC XM29 requires straight composite sync. The playstation series of consoles don't output composite sync, so you have to use composite video for the sync when using RGB. And in that case, depending on your monitor, you would need to strip the sync signal from the composite video to get a stable picture. Plus some consoles have a dirty sync output and running it through a LM1881 circuit cleans it up.

[thesteve]

my PVM requires TTL sync or sync on green

[HercTNT]

my PVM requires TTL sync or sync on green

Can you explain that in more basic terms so my damaged coconut can absorb it better?

[SignOfZeta]

I've never fixed anything with one of these chips but other people certainly have. Build it if you need it, I guess.

[ApolloBoy]

my PVM requires TTL sync or sync on green

Can you explain that in more basic terms so my damaged coconut can absorb it better?

I think by TTL sync he means a digital sync signal as opposed to a normal analog one. Sync on green is where the sync signal is combined with the green signal. Not all that common but most PVMs can make use of it.

[Drakon]

Sync on green I believe is sync mixed into the green line of rgb, g being green.

*edit* then I read the posts and noticed apolloboy already explained haha.

my PVM requires TTL sync or sync on green

Can you explain that in more basic terms so my damaged coconut can absorb it better?

[thesteve]

TTL is commonly used to refer to a 0V low 5V high signal (the type required for TTL logic chips)

[HercTNT]

Originally I thought my duo worked perfect in rgb with my converter. turns out it would only play hucards in rgb, but not cd's. It was not the duo, it was the converter. I built the sync stripper, and incorporated it into my rgb cable and it now works fine for both hucards and cd's. This is a one of a kind scenario based on my upscaler. others would most lilkely not have to do this. another drawback is jailbars are a tad more noticable

[NightWolve]

Are there good images that demonstrate this "jailbar" effect ? I still don't know what it refers to...