Main > Monitor/Video Forum
HDMI to Old CRT
Zebidee:
Looks great!
Simplest way to add an "auto power-on circuit" to a TV is to put a capacitor between the soft power-on switch terminals. When connecting to power, this adds a short delay (typically less than 1 second) before closing the switch. This is usually enough time for the TV control circuitry to wake up, and then being able to register that you've "pressed the switch".
Am I imagining a soft shadow in the middle, between the blocks of red and cyan?
abstract3000:
well I got the TV back today, and it appears he simply used a board to put everything on, and he gave me the schematics for it as well. (Ignore my previous squirrely ignorance :) ) I needed to spend some more time reading up on H-Sync & V-Sync vs Composite Sync....
So with it pinned to analog VGA Layout, a Vga to Vga Cord should work just perfectly I suppose. When I get the Power Supply In, I will start loading Windows 7 and getting GroovyMame setup with CRT_Emudriver, and we will see how this goes :)
abstract3000:
Well it appears my first test of connecting to the monitor is a Crash & Burn no success :'(
I used Win10 for Testing enabled the TESTSIGNING got the CRT_EmuDriver installed it found my Card and Installed AMD Radeon HD 7400 Series (CRT Emudriver) Drivers correctly.
Opened up VMMaker, (verified CRT Emudriver on the screen)
- Selected Arcade 15.7
- unchecked Extend desktop automatically on device restart
- Dropdown box to VGA_Analog_0
- Clicked on Enable EDID emulation
Unplugged the VGA from the monitor and moved it to the CRT and well.... Nothing :/ Swapped through all inputs which didn't do anything powered the TV on And off and still nothing.
When I moved the VGA back to the Monitor the Screen rez was all screwed up small to the side with lines through it indicating what i guess to be it was outputting the signal at 15kHz. So... Any ideas or suggestions? I have the schematics from the TV to the pins posted above on my VGA pinout, using a standard VGA to VGA D15 Cable.
After reading a bit and looking at my windows display settings i don't see any modelines for 640x480 available... not sure if that's the issue, but I will try to find the modelines to install and see if that option comes available, switch the monitor to that maybe and try again?
buttersoft:
Sorry to maybe go over stuff you've covered before, but... Is the Arcade monitor known working? Is the setup monitor an LCD or a CRT of some kind? It's really unusual that an LCD would display a garbled image, esp at 15kHz.
abstract3000:
I apologize for my description of "garbled". The setup monitor is a Dell LCD monitor. When I move the vga back from the CRT to the setup LCD, I see an image of VMmaker software extremely large but offset in the corner and there are tear lines or flashing horizontal lines through the screen until I click on disable edid emulation. And it returns back to normal.
Hope that clears that up, the lowest resolution my current settings support is 800x600 do you not think having the additional modelines installed could be the issue?