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barclay66
Joined: 27 Jun 2011
Posts: 1304
Location: Germany
TV/Projector: Marquee 9500 Ultra
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| Posted: Wed May 30, 2012 9:01 pm Post subject: |
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| Tim in Phoenix wrote: | | If someone were to build an adapter that placed the Moome card in the decoder slot, that might make things easier. The backplane might want composite sync, someone needs to look at that. |
Hello Tim,
It is possible to build this kind of adapter. The adapter does have to simulate an existing decoder board (see my results above, so this is a GO) and You have to route the Moome's outputs (RGBHV) onto the corresponding Decoder output pins:
- JC6, Pin 19 for Red
- JC6, Pin 20 for Green
- JC6, Pin 21 for Blue
- JA6, Pin 20 for H-Sync
- JA6, Pin 21 for V-Sync
- No composite Sync
Seems to me that this port expects negative sync polarity. So if the Moome outputs positive sync a sync inverting circuit should be present on the adapter...
Regards,
barclay66
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barclay66
Joined: 27 Jun 2011
Posts: 1304
Location: Germany
TV/Projector: Marquee 9500 Ultra
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| Posted: Wed May 30, 2012 9:08 pm Post subject: |
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| Nashou66 wrote: | oh and is that porn station on your sky recover? I see XXX and the word Sexy !  |
Not really.
I just switched on the teletext page of the current TV station so that everyone could see it's a current picture i took. In Germany there are public and privately owned television stations. The public ones get their share from a mandatory fee everyone with a TV set has to pay. The privately owned have to make their own money (mostly through lots of commercials).
And now I ask You: What does always sell?
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Wed May 30, 2012 9:15 pm Post subject: |
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| barclay66 wrote: | | Nashou66 wrote: | | oh and is that porn station on your sky recover? I see XXX and the word Sexy ! |
Not really.
I just switched on the teletext page of the current TV station so that everyone could see it's a current picture i took. In Germany there are public and privately owned television stations. The public ones get their share from a mandatory fee everyone with a TV set has to pay. The privately owned have to make their own money (mostly through lots of commercials).
And now I ask You: What does always sell? |
LOl SEX!!!
too funny!!!
Nashou
_________________
Don't blame your underwear for your crooked ass~ unknown Greek philosopher
"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
One Smart Dog!!!
Marquee High Performance Bellows now shipping!!
Marquee Modifications and Performance Enhancement
Marquee C-element and Bellow removal
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tse
Joined: 03 May 2006
Posts: 1014
Location: Sweatbucket, Fl.
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| Posted: Wed May 30, 2012 11:51 pm Post subject: |
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Cool! I wonder why Ehome went to all the trouble to put the ID circuit on the board if all it looks for is the ack on the I2C bus from the parts? Good job!
Scott
_________________
"Were we directed from Washington when to sow and when to reap, we would soon want bread."
Thomas Jefferson
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barclay66
Joined: 27 Jun 2011
Posts: 1304
Location: Germany
TV/Projector: Marquee 9500 Ultra
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| Posted: Thu May 31, 2012 10:51 am Post subject: |
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| tse wrote: | | Cool! I wonder why Ehome went to all the trouble to put the ID circuit on the board if all it looks for is the ack on the I2C bus from the parts? Good job! |
Thank You Scott,
Your contribution was essential for the success!
As to why Ehome went this route for internal communication is left to speculation. Maybe one of the engineers had a Barco at home and liked their concept. The only difference to the Barco design is the usage of standard I2C devices instead of custom ICs. Newer Barcos are stuffed with I2C controlled electronic pots (the so called "Bella" chips), especially on the convergence driver boards.
On the other hand it's a sleek and elegant design. No additional hardware needed, no additional status lines needed, just some lines of code and a table with potentially used I2C addresses. As You and Curt mentioned there are different versions of the Decoder board and I do know that other boards may differ too. I'm quite sure that the I2C addresses being used on a board not only determine its presence but its type too. Depending on this, the functionality and control method will be different by using different sections of the CLM control software. So we can expect it being quite modular.
One good example is the Focus board. If it is a non-Ultra (FCM) it has only one TDA8444 on it. So it returns an acknowledge on one address only. The Ultra board (FGM) has the additional section populated (which ironically has absolutely nothing to do with focus) and there's a second TDA8444. You could add this TDA to a non-Ultra board and it would be detected as Ultra. Of course that wouldn't yield any additional geometry control as the corresponding circuitry would be missing. But the menus would offer the additional items.
With a suficcent set of Knowledge and the necessary precautions it's really fun poking around inside the guts of technology!!!
Regards,
barclay66
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barclay66
Joined: 27 Jun 2011
Posts: 1304
Location: Germany
TV/Projector: Marquee 9500 Ultra
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| Posted: Thu May 31, 2012 11:16 am Post subject: Marquee Control Expander |
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| barclay66 wrote: | What's next:
- Verify that the analog Outputs are active and can be controlled
- Check which settings (Color, Tint & Detail) are stored under which circumstances
- Optimize the board and draw a schematic
- Build & test the adapting circuits for controlling the features desired
- Document everything
All of this has to wait until I return from my vacation after June 10th. |
Just an update on the items above. BTW: I changed the thread's topic to "Marquee Control Expander" as this development seems able to go into this direction.
Although it was late at night yesterday I couldn't resist working on this a little more. So this is what I found out:
- The settings for Color, Tint and Detail are accessible on any input selected (RGB, Decoder & VIM slot a.k.a. Moome)
- Each of their settings controls the output voltage of the corresponding D/A output (0 to 5V in my design, but can be anything up to 0 to 10V)
- And now the best: If You store channel numbers for the inputs every setting is stored for each channel!!!
- And even better: My board isn't confined to the Decoder slot. It could be placed anywhere where the I2C bus is present and this is almost everywhere (even on the large heat sink). Imagine the possibilities!
- Example: You want Your fans controlled depending on the resolution You feed? No problem! Let them turn faster when there's more strain on the PJ! Plug in the Marquee Control Extender, connect the "Fan Control Adapter" and set an individual level of airflow per stored input channel!
- Another example: You want to have control over the room lights from Your Marquee Remote? No problem! Plug in the Marquee Control Extender, connect the "External Dimmer Adapter" and control it via the Color, Tint or Detail settings!
More to come after my vacation. Beware! I've got over a week's time to think about additional options...
Regards,
barclay66
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Thu May 31, 2012 12:00 pm Post subject: Re: Marquee Control Expander |
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| barclay66 wrote: | | barclay66 wrote: | What's next:
- Verify that the analog Outputs are active and can be controlled
- Check which settings (Color, Tint & Detail) are stored under which circumstances
- Optimize the board and draw a schematic
- Build & test the adapting circuits for controlling the features desired
- Document everything
All of this has to wait until I return from my vacation after June 10th. |
Just an update on the items above. BTW: I changed the thread's topic to "Marquee Control Expander" as this development seems able to go into this direction.
Although it was late at night yesterday I couldn't resist working on this a little more. So this is what I found out:
- The settings for Color, Tint and Detail are accessible on any input selected (RGB, Decoder & VIM slot a.k.a. Moome)
- Each of their settings controls the output voltage of the corresponding D/A output (0 to 5V in my design, but can be anything up to 0 to 10V)
- And now the best: If You store channel numbers for the inputs every setting is stored for each channel!!!
- And even better: My board isn't confined to the Decoder slot. It could be placed anywhere where the I2C bus is present and this is almost everywhere (even on the large heat sink). Imagine the possibilities!
- Example: You want Your fans controlled depending on the resolution You feed? No problem! Let them turn faster when there's more strain on the PJ! Plug in the Marquee Control Extender, connect the "Fan Control Adapter" and set an individual level of airflow per stored input channel!
- Another example: You want to have control over the room lights from Your Marquee Remote? No problem! Plug in the Marquee Control Extender, connect the "External Dimmer Adapter" and control it via the Color, Tint or Detail settings!
More to come after my vacation. Beware! I've got over a week's time to think about additional options...
Regards,
barclay66 |
This might work to turn on and off the pixel generator on the CLM as discussed in the other thread dealing with the faint line service update! Great work Barclay66!!!
I need to go to IT school!!! I'm Jealous!
Nashou
_________________
Don't blame your underwear for your crooked ass~ unknown Greek philosopher
"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
One Smart Dog!!!
Marquee High Performance Bellows now shipping!!
Marquee Modifications and Performance Enhancement
Marquee C-element and Bellow removal
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noos@xp37+
Joined: 17 Jun 2008
Posts: 464
Location: Berlin/Munich
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| Posted: Thu May 31, 2012 5:09 pm Post subject: |
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| Nashou66 wrote: | Man there are some smart guys on this forum!!!
Athanasios |
...reading this thread makes me feel stupid. Barclay66, what are you, a rocket scientist?
...and it is better the people here do not understand German. But to save Barclay´s reputation, these are standard adds in the video text of a German, normaly family friendly TV station.
regards
Marc
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Tim in Phoenix
Joined: 21 Oct 2006
Posts: 4409
Location: Phoenix
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| Posted: Thu May 31, 2012 5:44 pm Post subject: |
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| barclay66 wrote: | | Tim in Phoenix wrote: | | If someone were to build an adapter that placed the Moome card in the decoder slot, that might make things easier. The backplane might want composite sync, someone needs to look at that. |
Hello Tim,
It is possible to build this kind of adapter. The adapter does have to simulate an existing decoder board (see my results above, so this is a GO) and You have to route the Moome's outputs (RGBHV) onto the corresponding Decoder output pins:
- JC6, Pin 19 for Red
- JC6, Pin 20 for Green
- JC6, Pin 21 for Blue
- JA6, Pin 20 for H-Sync
- JA6, Pin 21 for V-Sync
- No composite Sync
Seems to me that this port expects negative sync polarity. So if the Moome outputs positive sync a sync inverting circuit should be present on the adapter...
Regards,
barclay66 |
You are halfway home! Hook up your RGBHV and figure out how to talk to the Moome settings and it is done! Oh, and maybe switch between the HDMI ins.
Uh oh...... those decoder relays you guys pulled off the VIMs, those have to go back in!!!!!!!!!!
.
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barclay66
Joined: 27 Jun 2011
Posts: 1304
Location: Germany
TV/Projector: Marquee 9500 Ultra
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| Posted: Tue Jun 19, 2012 10:19 pm Post subject: |
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Dear folks,
I just wanted to give everyone an update on this project. After returning from my vacation I ordered some varactor diodes with different capacity ranges. So I'm prepared for the construction of an adjustable peaking circuit. Unfortunately a shitload of work was waiting at the office when I returned (somewhat like the ususal vacation punishement) and it will take some time until I'll have something new to be shown.
For those with an affinity towards electronics this is a status summary:
Using the I2C devices (one I/O device with parallel output and one 6-bit D/A converter with eight outputs) normally used on the optional decoder module it is possible to emulate the module's presence and to isolate three control voltages (Color, Tint & Detail on the remote). Using the D/A converter's Vmax input it is possible to predefine the maximum output voltage. The maximum allowed value of 10V will yield an adjustable range from 0V to 10V which can be controlled in 64 steps per output. Each output voltage setting is stored individually for each of the Marquee's programmed input channels and will be recalled when selecting the corresponding channel.
Using these variable voltages several things can be accomplished:
- Create a varable capacitance (using varactor diodes)
- Create a variable resistance (using a JFET transistor)
- Create other voltage ranges (using an OPAMP level shifter/amplifier)
- Create an electrically isolated control (using an optocoupler)
- Create a logical switch (using a Schmitt trigger circuit)
- Create multiple selectable logical outputs (e.g. 10 outputs using a LM3914 circuit)
- Create something programmable (e.g. feeding the signal to a PIC microcontroller and output a preprogrammed output sequence, e.g. for IR commands, just like a remote control for other devices)
For the moment I have these applications in mind (any ideas are welcome!):
- Adjustable peaking circuit (under construction thanks to Scott's input)
- Adjustable fan control (easy)
- Switching or regulating external devices
- Controllable Moome card gamma settings
- Controllable Pedestal settings (still no idea where to manipulate the VIM)
- Build something like Barco's TSN (Triangular Spot Nullifying) circuit, basically an electronically controllable 6-pole magnet (might be too complex for my abilities)
I'll keep You updated...
Regards,
barclay66
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gjaky
Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary
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| Posted: Wed Jun 20, 2012 8:46 am Post subject: |
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| Quote: | | - Example: You want Your fans controlled depending on the resolution You feed? No problem! Let them turn faster when there's more strain on the PJ! Plug in the Marquee Control Extender, connect the "Fan Control Adapter" and set an individual level of airflow per stored input channel! |
I don't know how exactly HDM working on a marquee but on a NEC there are several easily accessable FVC signals (frequency to voltage conversion on horizontal frequency, so 35kHz signal gives 3,5V, 80kHz gives 8V, and so on) So if there would be also a similar signal on the HDM it could be used to automatically adjust fan speed without user intervention.
_________________
projectors in the past : NEC 6-9PG xtra, Electrohome Marquee 6-7500, NEC XG 1351 LC ( with super modified Electrohome VNB neckboard !!!)
current: VDC Marquee 9500LC
The MOD: VNB-DB, VIM-DB
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barclay66
Joined: 27 Jun 2011
Posts: 1304
Location: Germany
TV/Projector: Marquee 9500 Ultra
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| Posted: Wed Jun 20, 2012 9:22 am Post subject: |
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Right!
On the HDM You have relays which are switched depending on the frequency range being used. You could use their control voltages for this type of control. Controlling the fans was just one of the ideas that came to my mind. I didn't bother too much thinking about its benefits or about other means how it could be acheived. I just wanted to demonstrate that items could now be controlled which weren't before...
Regards,
barclay66
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