Now, I'm gonna need you to clarify some things before I can even begin to help you: you mention a 'din' connector, I presume you meant DVI? Secondly, what kind of TV are you attempting to pass a signal through, and is that TV capable of being safely used with a PC? If I'm misunderstanding what you need assistance with, then please, correct me and I'll do my best to get you set up.
I believe the DIN or MINI DIN connector the OP refers to is a small round multi-pin connector that looks like a PS2 keyboard/mouse connector. One or two of my older video cards have that connector and came with a cable to use it.
Middle connector in the picture on this page. Video In Video Out - Wikipedia, the free encyclopedia
I've never used it, as i never had anything to actually plug it into.
My Computer
At a glance
Windows 10 Education 64 bitAMD Phenom II X4 980 Black Edition Deneb 3.7GHz8GB 4GBx2 Kingston PC10600 DDR3 1333 MemoryZotac NVIDIA Geforce GT640 2 Gig DDR3 PCIe
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Home Built
OS
Windows 10 Education 64 bit
CPU
AMD Phenom II X4 980 Black Edition Deneb 3.7GHz
Motherboard
Asus M4N68T-M V2 µATX Motherboard
Memory
8GB 4GBx2 Kingston PC10600 DDR3 1333 Memory
Graphics Card(s)
Zotac NVIDIA Geforce GT640 2 Gig DDR3 PCIe
Sound Card
VIA VT1708s High Definition Audio 8-channel Onboard