First post, by ATauenis
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- Member
Hi all!
I have got an combo VGA+TTL monitor from Quadram. Label on the back is lost, the monitor looks like Quadram MS1422, but instead of EGA/PGC connector it have a 15-pin VGA cable.
Photos:
https://pp.userapi.com/c846320/v846320430/41a … LBH9pTlnUcE.jpg
https://pp.userapi.com/c846320/v846320430/41a … FMqmYegh2Xo.jpg
https://pp.userapi.com/c846320/v846320430/41a … _88ud16IhYA.jpg
https://pp.userapi.com/c845323/v845323189/501 … pvdWytS58rQ.jpg
https://pp.userapi.com/c834303/v834303189/140 … PGvRrBzTuqg.jpg
https://pp.userapi.com/c846524/v846524189/4d9 … _ozm5Q7weSg.jpg
First picture had been taken with original CRT, which was dead. I have replaced it with one from Samsung SyncMaster 3Ne, and now the monitor works in VGA & SVGA modes almost perfectly (only the covergence is not best, as the coils are used from original NEC tube, and they are not well compatible with Samsung CRT).
In TTL mode the pinout of 15-pin connector looks very different from VGA one. I've found that the GND beings placed on the pin 1 of DB-15, VSYNC on pin 6 and HSYNC on pin 7. I can get stable picture with missed colours (the video card is EGA). The next step is to find positions of color signals. But there are 64 or more possible combinations... 😵 Does anyone know the valid pinout of the 15-pin connector here in TTL mode?
2×Soviet ZX-Speccy, 1×MacIIsi, 1×086, 1×286, 2×386DX, 1×386SX, 2×486, 1×P54C, 7×P55C, 6×Slot1, 4×S370, 1×SlotA, 2×S462, ∞×Modern.