Hi Anders, That's okay please excuse my terrible memory. Just using normal basic displays fine, adding a cartridge powering on No display. (With modern TV) BTW my Vic may be the latter board it has the Din connector to use a Commodore monitor cable, Im not using the modulator connection. I thought something was wrong with the computer so I swapped back to my working 1084S (stereo) monitor with cartridge plugged in that displays and powers up just fine. Again I'm in the USA using NTSC video 🙂 So something there that the signal is different on these modern TV's I see what you're saying wasnt supported yet on the Vic-20. I do have the earlier VIC-20 that has the funky 2pin power connector I might see what it does with a cartridge, etc on my modern flat screen TV. Thank you, Terry R. On Thu, Jul 19, 2018, 3:19 AM Anders Carlsson <firstname.lastname@example.org> wrote: > Ruud Baltissen wrote: > > > I remember having troubles with the older VIC-20 boards regarding the > > video, even on my CM8233. At the end I had to use another output on > > the 5-pins connector then the one normally used for the newer VIC-20s > > and the C64. This was one of the reasons I hardly use the older > > boards. The second reason is that I can use the same power supply for > > the newer boards as for my C64. > > Yes, the VIC-20 has composite video output on two pins, the regular pin > 4 (marked as Video Low in some manuals) and an extra signal on pin 5 > (marked as Video High). I think the Video High is a stronger signal > (voltage?) meant for the RF modulator though it also has its own 5/6V > power source in the same cable. > > On newer VIC-20CR models, there no longer would be any difference > between Video Low and Video High, which would explain if your newer VIC > worked better on your monitors and TVs. > > Wiring a cable with pins 2, 3, 5 instead of 2, 3, 4 would make it > specific to early VIC-20, for displays where the Low signal may be too > weak. I'll admit my two-prong VIC-20 with an early (?) 6561E video chip > is firmly boxed away and for daily use I'm strictly using DIN-style CR > models - both PAL and NTSC, but I might bring out my old two-prong and > test with a regular composite video cable on various displays to > determine if those yield a display or not. > > On a partly related note, I've got a PAL model CGL M5 (UK branded > version of the Japanese computer Sord M5). That one displays a colour > picture on most CRTs and some LCDs, except some otherwise excellent > Samsung LCD TVs capable of handling both PAL and NTSC, but which are > unable to produce colours from the M5 composite video signal. Then again > I used to have a genuine Sord M5 in PAL version, which displayed in B&W > on my 1084 but in colour on other displays so it could very well be a > case of signal strength and whether the TV/monitor accepts very weak > signals. At first I thought the Sord branded machine was Japanese NTSC > but since it displayed in colour on TVs otherwise known to NOT handle > NTSC composite video, that could not be the case. > > Best regards > > Anders Carlsson > > > > > >Received on 2018-07-19 21:02:50
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