Floating pin 12 on LM1889 colour modulator

[tormod]

While investigating the possibility of S-video output, I pulled out my LM1889 in order to check the resulting b/w image and to bend pin 13 so it will be disconnected from the normal signal path and available for my own circuitry.

However, I discovered that pin 12 was bent back underneath the IC and not sitting in the socket. Is it like this on all Dragons? The schematics don't indicate pin 12 at all so I guess it is floating by design, but I found it a bit particular to be bent out of the socket like this. Maybe to keep it short to avoid picking up too much noise, without the added effort of cutting it off?

This is a Dragon 32, main board MKII issue 5 ("Siemens").

[sixxie]

FWIW I don't ever remember finding a bent back pin when removing an LM1889.

I might well have only done that on one board though, which would be a Dragon 64 (need to get it out again, then I could tell you the board rev).

[KenH]

On my Tano Dragon (Issue 2) the LM1889 is soldered. All pins seem to be in place.
On my Dragon 32 (Mark II Issue 5) the LM1889 is socketed, but none of the pins is bent.