Software Support > GroovyMAME
SCART CRT TV And GroovyMAME Thread 2
lettuce:
Ok like Paradroid's thread i have got 2 PAL Scart CRT TV's, Sharp 21HT15H & Bush RF2185NTXSIL/A, the bush uses a beko chassis not sure on the sharp.
Im using windows xp 64bit and have a ATI x600 card, i have done a freshing install of windows and installed the CRT_Emudriver 6.5 drivers.
I Have edited the VMMaker.ini file and only changed the, "Mame.exe" path, "Mame.ini" path, "VerticalAspect" to 4:3 and "MonitorType" to Custom.
I have run VMMaker.exe and it has generated 120 mode line and missed none.
Now this is where i need some guidance, i havent touched the MAME ini file yet what settings do i need to change in that for my setup?, also should the "MonitorType" in the VMMAker.ini file be set to something else other than custom?
I have noticed that the info screen when loading a rom seems compressed/shrunk as its not easy to read, is grooymame doing something it should?, also i have a fair bit of over scan going on aswell, this is using the Sharp TV at the moment. I have attached the debug file.
Also have noticed that while the Sharp TV displays windows in 640x480 fine, the BUSH TV however doesnt..........
After a while the screen will start scrolling diagionally, but when switching to a mame rom the display is fine!. Is this to do with the CRT_Emudriver 6.5 drivers and some resolutuions that VMMaker as made or is it the scart cable?
Calamity:
--- Quote from: lettuce on December 17, 2011, 09:44:46 am ---Now this is where i need some guidance, i havent touched the MAME ini file yet what settings do i need to change in that for my setup?, also should the "MonitorType" in the VMMAker.ini file be set to something else other than custom?
--- End quote ---
In mame.ini, you can just leave the monitor options as cga, and add this line:
monitor_specs_0 15625-16200, 49.50-65.00, 2.000, 4.700, 8.000, 0.064, 0.160, 1.056, 0, 0, 288, 448
... so you'll have the same settings in mame.ini and vmmaker.ini (that's the default "CUSTOM" line defined)
--- Quote from: lettuce on December 17, 2011, 09:44:46 am ---I have noticed that the info screen when loading a rom seems compressed/shrunk as its not easy to read, is grooymame doing something it should?, also i have a fair bit of over scan going on aswell, this is using the Sharp TV at the moment. I have attached the debug file.
--- End quote ---
Try those resolutions individually in Arcade_OSD to check the geometry. You can also find your right horizontal geometry values there to remove overscan.
--- Quote ---Also have noticed that while the Sharp TV displays windows in 640x480 fine, the BUSH TV however doesnt..........
After a while the screen will start scrolling diagionally, but when switching to a mame rom the display is fine!. Is this to do with the CRT_Emudriver 6.5 drivers and some resolutuions that VMMaker as made or is it the scart cable?
--- End quote ---
That looks like a horizontal frequency out of range issue, probably that TV requires extrictly either PAL or NTSC frequencies. Open Modeline.txt and grab the modeline corresponding to 640x480@60, paste it here so we can confirm that.
lettuce:
--- Quote from: Calamity on December 17, 2011, 10:24:04 am ---In mame.ini, you can just leave the monitor options as cga, and add this line:
monitor_specs_0 15625-16200, 49.50-65.00, 2.000, 4.700, 8.000, 0.064, 0.160, 1.056, 0, 0, 288, 448
... so you'll have the same settings in mame.ini and vmmaker.ini (that's the default "CUSTOM" line defined)
--- End quote ---
So i should leave "MonitorType" in VMMaker as Custom then and just change it to cga in the mame ini file?
Do i also need to add that monitor_specs_0 line to the VMMaker.ini file aswell?
--- Quote from: Calamity on December 17, 2011, 10:24:04 am ---Try those resolutions individually in Arcade_OSD to check the geometry. You can also find your right horizontal geometry values there to remove overscan.
--- End quote ---
Ok i have loaded up Arcade_OSD, have selected the screen res 384x224 then press enter to view fullscreen but Arcade_OSD crashes any ideas why this is?
--- Quote from: Calamity on December 17, 2011, 10:24:04 am ---That looks like a horizontal frequency out of range issue, probably that TV requires extrictly either PAL or NTSC frequencies. Open Modeline.txt and grab the modeline corresponding to 640x480@60, paste it here so we can confirm that.
--- End quote ---
have attached my whole modeline.txt file, have noticed that it doesnt have an 800x600 screen res and jumps from 792x592 to 1280x240 why is this. As if i use quickres tool 800x600 is in the list but if i select it i lose singal on my TV, i though CRT Tv's could do up to 1024x768 interlaced?, can TV's do 800x600 progressivly or is that res interlaced aswell usually?
Have noticed that windows has selected the TV as default monitor but it has selected the refresh rate a 200Hz, should this be left at 200hz or shouldi change it to 60hz??
Paradroid:
--- Quote from: lettuce on December 17, 2011, 09:44:46 am ---Ok like Paradroid's thread i have got 2 PAL Scart CRT TV's, Sharp 21HT15H & Bush RF2185NTXSIL/A
--- End quote ---
Fun times ahead! ;D Perhaps a little frustration along the way too… ;)
--- Quote from: lettuce on December 17, 2011, 09:44:46 am ---I have noticed that the info screen when loading a rom seems compressed/shrunk as its not easy to read, is grooymame doing something it should?
--- End quote ---
Remember that once you launch a game in MAME, the display will switch to the game's native resolution. Since some of these resolutions will be very low, the MAME UI text is gonna look pretty rough a lot of the times. The fonts look nice at 640×480 but pretty nasty at 320×240. That's normal. Also, when a game exits to the MAME menu, you'll still be in the resolution from the game you just played.
--- Quote from: lettuce on December 17, 2011, 09:44:46 am ---, also i have a fair bit of over scan going on aswell, this is using the Sharp TV at the moment. I have attached the debug file.
--- End quote ---
You're going to need to Google for the service manuals for your TVs. Sometimes these are easy to find, sometimes not. There are some amazing resources out there, huge repositories of info on all types and brands of TVs. Once you have a PDF of the service manual, you'll need to follow the steps to get into the Service Menu. Each manufacturer does this in a slightly different way e.g. you could navigate the Loewe Service Menus without consulting the manual but for the Sony KV-HR32M31 that I had, it was extremely complex and hard to understand.
You'll need to look for the parameters with names such as "Height" or "V-Amp", "Width" or "H-Amp", etc. Those settings will correct your underscan/overscan. Then, you'll usually have some parameters that adjust the shape of the image. If your TV was well designed and still in good condition, you should be able to get the image looking very close to PERFECT if you have the patience. It'll make you realise how lazy some of those arcade game technicians were back in the day. ;)
Oh, if you get to the Service Menu, make sure you right down ALL the current settings before you start experimenting. Trust me, it'll save you some heart ache later on. ;)
lettuce:
Cheers Paradroid, have tried looking for the service code of the Bush, but cant find one anywhere :(. With adding the modeline:
monitor_specs_0 15625-16200, 49.50-65.00, 2.000, 4.700, 8.000, 0.064, 0.160, 1.056, 0, 0, 288, 448
to the MAME.ini file then the display is more or less perfect with no over scan now, but the top and bottom of the screen has a very slight boarder now, what parts of the monitor_spec line control the vertical stretch?
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