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NEC PC-Engine/SuperGrafx => PC Engine/SuperGrafx Discussion => Topic started by: jackleather on February 05, 2009, 08:01:07 PM
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Hi all!
i am new to the pc engine and have a problem with cyber core. my pc engine has an RGB mod but i only use the composite out for video. When i play cyber core i notice a buzz over any background sound - when the sound stops so does the buzz (when theres silence there is no buzz). The video also has slight horizontal waves of interference across it, nothing major but still annoying. is this normal?
however, both image flight and final soldier play perfectly.
i have cleaned the contacts on the hucard. i also tried cyber core in an emulator and it doesnt have this 'buzz' or interference.
please help a proud new pc engine owner!
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have not played that one so cannot comment on the game in particular. Every game I have played in RGB (component) works just fine however. It could be that the RGB lines do not have resistors which can send too much voltage in the signal lines (some TV's don't like that). I noticed before putting the resistors on my custom cable that some games looked very funky before I put those in.
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have not played that one so cannot comment on the game in particular. Every game I have played in RGB (component) works just fine however. It could be that the RGB lines do not have resistors which can send too much voltage in the signal lines (some TV's don't like that). I noticed before putting the resistors on my custom cable that some games looked very funky before I put those in.
thanks Duo_R!
i am hoping that its not a dodgy mod! my mod is one which replaces the TV out with a mini-DIN socket.
i assume that your video was washed out or the contrast was wrong. my problem effects sound (most notably) as well as video. the colours are fine but as i say there are faint horizontal bands propagating from bottom to top, most noticeable when playing the game.
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It's definitely not normal, so something is screwy somewhere.
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I found the problem! :D
i am using one of those multi-voltage power supplies, with the slider switch that lets you select 2/4/6/9/12volts.
i had it set to low #-o. once i notched it up a rung the sound and vision in cyber core cleared right up.
now does anyone think that increasing the voltage could be an issue? :-k
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What is required voltage and what are you giving it?
I found the problem! :D
i am using one of those multi-voltage power supplies, with the slider switch that lets you select 2/4/6/9/12volts.
i had it set to low #-o. once i notched it up a rung the sound and vision in cyber core cleared right up.
now does anyone think that increasing the voltage could be an issue? :-k
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Pretty sure this is one of my mods, the ID looks familiar although eBay wiped all the data off the site for past sales so its hard for me to remember.
Is this the one I sent on request with an AV cable? If so it just uses the composite out with that cable. Obviously if the issue was the power supply then it's fixed but there's nothing wrong with the mod as it just pulls video from the regular source.
If this is my mod, you have an option of a future purchase of a Megadrive II SCART for the system. THis would give you a better picture. If you get one though, here's an odd little thing, the socket in the console is upside down. The reason for this is it won't fit flush with the PCB otherwise, due to the solder points that the PCB lacks the holes for. So if you ever go for a SCART cable you need to have the arrow on the top of the plug on the bottom instead. The arrow on the cable I gave you is on the top, because I adapt those cables to whatever system I supply them for.
The Engine needs the 9v source and at least 850mA so be careful. I don't know if I supplied a power supply either (if I did, it's a 1000mA one and therefore fine.) I've been banned from selling these consoles on eBay and had a lot of data deleted by those idiots so forgive me for my forgetfulness.