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Author Topic: Sharp Image 639DS-R Dual Sync CRT use with GroovyMame/EmuDriver  (Read 1771 times)

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AstroSonic65

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Sharp Image 639DS-R Dual Sync CRT use with GroovyMame/EmuDriver
« on: July 15, 2023, 12:15:30 am »
Hello

I have 39” Sharp Image CRT that is capable of running at 15khz or 25khz.  I’m in the process of configuring CRT EmuDriver and was curious if it would work better using one setting over the other.  The jumper is currently set to 15khz.  The vast majority of the games I’ll be playing are from the eighties.

Thank you,
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buttersoft

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Re: Sharp Image 639DS-R Dual Sync CRT use with GroovyMame/EmuDriver
« Reply #1 on: July 15, 2023, 06:59:50 am »
crt_emudriver can be set up to deliver either 15kHz or 25kHz pretty much equally well. However, it's best to display games at native res. Most 80's arcade games were 15kHz.

25kHz is medium res, which apart from Sega Model 2 and Model 3 games is pretty obscure.
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AstroSonic65

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Re: Sharp Image 639DS-R Dual Sync CRT use with GroovyMame/EmuDriver
« Reply #2 on: July 15, 2023, 07:32:08 pm »
Quote from: buttersoft on July 15, 2023, 06:59:50 am
crt_emudriver can be set up to deliver either 15kHz or 25kHz pretty much equally well. However, it's best to display games at native res. Most 80's arcade games were 15kHz.

25kHz is medium res, which apart from Sega Model 2 and Model 3 games is pretty obscure.

Thank you for your response, I appreciate it very much. 
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