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Hi,
Can someone tell me the pin assignment of the 15DSUB input for the XPand control of the Dolby IMS3000. The old DSUB no longer fits. I would like to exchange the old connector.
Thanks
The IMS3000 doesn't have a DB15 3-D connector - that is on the projector (CCB on a Barco, CPU on an NEC). On all the XPandD installs I've done, the cable that came in the box hooked into the projector (including at least one with an IMS3000 that I can recall) and just worked - no worrying about pinouts needed.
The cable was originally connected to our NEC NC2000C.
I have now replaced the DB37 with a DB15 connector and tried it out on the NEC.
I connected the two control lines with the conn-sync pins of the DB15.
The test was successful and it now works on the Christie too.
I was asked to look at a similar change recently, and I wasn't lucky enough.
On what you write, Torsten and Carsten, I don't quite follow the following:
Torsten, you write "I connected the two control lines with the conn-sync pins of the DB15.".
The conn-sync pins of the DB15 are 7 (CONN_SYNC+) and 14 (CONN_SYNC-). Which are the control lines?
Carsten, do you mean that what is marked as (+) and (-) on DSUB15(3D-Port) which correspond to pin 7 and 14 respectively is the same as (+) and (-) on DSUB37 (9 and 28, 30 connected to 28) and should connect to 3 and 5 on the DSUB9?
I am asking, firstly because there is no mention that one is equivalent to another on the tables shown and on an XpanD cable that was working with DB37, 9 and 28 were connected to 1 and 2+6 respectively on DB9 (2 and 6 were shorted somewhere).
On another thread, Leo says he had the DB15 (on an SP4K) - XpanD DB9 connected and working easily. Leo, did you use a ready-made connector? Could you share what the pin-out was, if you are aware?
Marcel as well is mentioning using XpanD with a new type of lighter glasses, from what I can find.
On another thread, Leo says he had the DB15 (on an SP4K) - XpanD DB9 connected and working easily. Leo, did you use a ready-made connector? Could you share what the pin-out was, if you are aware?
'Fraid not, sorry. XpandD supply a plug 'n play cable for Barco CCBs, which I simply plugged and played.
Thank you Dave.
The SPXK projectors have the exact same pinout on their 3D connector. And the same I found on some NEC projectors as well. Could it be that it is universal? Hopefully.
On the XpanD system I was trying to connect, the key pins on the DB9 were 1 and 2, while 6 was shorted to 2 on the original cable.
My intention was to keep the original cable (DB37 -> DB9) and make an adaptor.
On DB37, as one can see on the table Carsten is having, the plus and minus of the sync, is pin 9 and 28 respectively.
Indeed, that corresponds to 7 and 14 of the DB15 3D connector.
So, after I correctly made the adaptor, between DB15 (3D connector) and DB9 (XpanD emitter), the connections were:
DB15 -> DB9
pin 07 -> 1
pin 14 -> 2 + 6
I can't tell with certainty whether the 14 -> 6 connection makes any difference.
The adaptor that I made was connecting 7->9 and 14->28 on the original connecting cable. And that worked, eventually.
I write "eventually", because I fell into a trap, assuming that the two DB37 were identical. Hence, instead of using a female, for the adaptor, since the connector on the projector is female, I used a male one.
In retrospective, the two DB37 are not the same. It's probable that the maker wanted to keep the GPIO capacity of the projector port, and hence extended to the female all pins, other than the relative to 3D.
A considerable thought from the side of the original cable maker, a foolish assumption from mine...
So thank you all for your replies. I hope this clears things out for someone else, that may be asked to unearth such a device.
I also hope I won't need to further disturb the peace of the since-long-in-the-past rested in it equipment.
Yes, the GPIO connector does lots more than just supply the 3D sync signal. It gets tricky when you use 3D and GPIO. Some 3D cables have an extender with the GPIO still available, not all though. I think that is why the 3D connector was added to S2 projectors. It also has a signal that 3D mode is active on the projector so an automatic 3D adapter mover can work without needing other commands. There's more, a serial connection and other signals I don't know about.
The D-SUB15 3D connector is common for all S2 systems (part of the ICP), and hence was carried forward to so called S3 and S4 electronics. It was rarely used with S2 systems, since the D-SUB37 generic GPIO was already present on S1 projectors, and cables could be reused with S2. Now with the current equipment upgrades to S3 and S4, the old GPIO D-SUB37 connector is gone, and D-SUB-15 cables and adaptors become necessary. Strangely, the D-SUB15 3D connector is underdocumented in all manufacturer manuals that I have seen. While the GPIO D-SUB-37 is more universal and highly configurable, the dedicated 3D connector is more or less preset and supports very few configuration options. It just mirrors some signals from the D-SUB37 GPIO connector that are relevant for 3D systems.
Last edited by Carsten Kurz; 11-26-2022, 07:36 AM.
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