Now speaking related to SECAM is a broadcast standard which is used mainly in Europ....so there connector for SECAM it self is different...so I think you can makeout SECAM is supported or not from looking at that connector itself but I think not for PAL or NTSC as they are mostly software configurable.....
Not Europe - just France & some areas outside Europe...
SECAM is a television standard that (like NTSC and PAL) governs signal timing, and what method is used to mix signals like luminance, color information & synchronization together. AFAIK it doesn't say much (or even anything) about connectors to use. Don't expect TV sets sold in France to have significantly different connectors from TV sets sold in Germany, Belgium or Spain... :smile:
Also it's possible to create signals that use eg. PAL method of encoding information, but with 60 Hz (NTSC) refresh frequency. Perhaps not standard-compliant, just saying that 50/60 Hz doesn't say everything, a (PAL) TV may loose color with NTSC signal, but still display 60 Hz PAL-encoded signal okay.
When you just look at the board, indeed a crystal that's 1x, or
exact multiple of
colorburst frequency (NTSC: 3.58 MHz, PAL: 4.43 MHz, SECAM doesn't use a colorburst?) might be a giveaway.
Better to determine TV model & check specs, most modern TV's support both NTSC and PAL (and perhaps SECAM as well).