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Post by Leeeeee on Aug 27, 2005 11:46:10 GMT -5
Just come from Argos with a PAL C64DTV in my sweaty mits.
100% PAL and 95% not like the 64v2schematic.pdf
Is nothing ever simple?
Lee.
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Post by sid on Aug 27, 2005 14:18:32 GMT -5
Lee, what are your observations? My first idea was that TP3 and TP4 might be the keyboard pins. That's because they're rather close to the ASIC, if you trace their path, and they both seem to be connected by 1k pull-up resistors to Vcc (R3 and R4). So I tried to hook up my PS/2 keyboard, but with no luck. Since I had to guess Data and Clk, I might have got it wrong the first time and maybe that fried either my keyboard or the DTV keyboard driver gate.
Any other ideas?
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Post by Leeeeee on Aug 27, 2005 15:19:28 GMT -5
None as yet. I'm away from home so haven't really got any test kit available. I'd guess the thing to look for would be the initialise commands being sent to the keyboard, assuming the C64 does this. This would give the PS2clk and PS2data.
I'm sure once I've found the keyboard the IEC bus can be found by hitting the hardware to toggle each line.
Now where can I borrow a 'scope? 8^)=
Lee.
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Post by Leeeeee on Aug 28, 2005 21:32:50 GMT -5
Lee, what are your observations? My first idea was that TP3 and TP4 might be the keyboard pins. I can confirm they are, TP3 (R3) is the clock and TP4 (R4) is the data. Trouble is it doesn't help as it doesn't seem to do much. The only mapping I've found so far is .. Button - Keyboard key FIRE RIGHT - F8 A - F1 or F2 B - DEL or BACKSPACE C - ENTER D - LEFT ARROW This can be tested by hitting reset then holding down the F1 (or F2) and LEFT ARROW keys until the screen goes white to enter the test screen. My guess is that the keyboard support, like the quick boot, has been removed for some reason or got broken in the PAL conversion. Anyone else tried this? Lee.
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Post by Captn Bobby on Aug 28, 2005 22:30:08 GMT -5
Lee, what are your observations? My first idea was that TP3 and TP4 might be the keyboard pins. That's because they're rather close to the ASIC, if you trace their path, and they both seem to be connected by 1k pull-up resistors to Vcc (R3 and R4). So I tried to hook up my PS/2 keyboard, but with no luck. Since I had to guess Data and Clk, I might have got it wrong the first time and maybe that fried either my keyboard or the DTV keyboard driver gate. Aw, that is too bad. Something to report to Jeri. Truly, Robert Bernardo Fresno Commodore User Group videocam.net.au/fcug
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Post by Guest on Aug 29, 2005 14:54:31 GMT -5
ok thanks it would be good to see the pictures of the new unit. I wonder how it compares to the old one? ljones
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Post by John Moore on Aug 30, 2005 13:41:26 GMT -5
I took some pictures of the PCB. (I threw the stick away pretty much the same day, its the guts Im interesated in ^_^) Ignore the black marker on the solder side image, they are most likely wrong, I think. BTW, please could somebody mirror these images ASAP as I only get 250MB transfer per month on my site hosting and if the rumors about my provider are true, they just delete the site. (But hey, it comes free with my BB access and has no ads or pops and I get CGI access and SQL) All images are around 257KB in size. jcom.shorturl.com/P1000496.JPG: Main board solder side. jcom.shorturl.com/P1000498.JPG: Switch PCB solder side. jcom.shorturl.com/P1000499.JPG: Main board parts side
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Post by Leeeeee on Aug 30, 2005 14:39:44 GMT -5
I think you have the keyboard clock and data swapped. I Think TP3 is the clock and TP4 the data.
I found another key that does something, if you hit the PAUSE key after reset but before the C= logo appears the C64DTV stops booting. Trouble is I've not found any way to do anything else then except reset it.
Lee.
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Post by sid on Aug 30, 2005 17:13:13 GMT -5
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Post by Captn Bobby on Sept 1, 2005 22:27:21 GMT -5
Right now I'm having one of my British friends track down a PAL DTV in Argos. Hopefully, he will soon mail it to me here in the states. Truly, Robert Bernardo Fresno Commodore User Group videocam.net.au/fcug
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Post by Robin Harbron on Sept 2, 2005 3:02:05 GMT -5
My guess is that the keyboard support, like the quick boot, has been removed for some reason or got broken in the PAL conversion. Anyone else tried this? Have you guys tried holding down the left Ctrl key on power-up/reset?
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Post by Frank on Sept 2, 2005 4:36:40 GMT -5
Has it got that Flash memory that someone was on about? Btw... where is the NTSC and PAL switch on it, which was apparently being added? Very cool btw!... the yellow and light grey pallete clashes a bit, but overall its very cool!.. Well done to those involved
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Post by John Moore on Sept 2, 2005 13:16:41 GMT -5
My guess is that the keyboard support, like the quick boot, has been removed for some reason or got broken in the PAL conversion. Anyone else tried this? Have you guys tried holding down the left Ctrl key on power-up/reset? Just tried it now, works a treat! But I just can't get used to the american keyboard mapping....
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Post by Guest on Sept 2, 2005 17:19:36 GMT -5
> >Btw... where is the NTSC and PAL switch on it, which was apparently being added? >
I don't have a C64DTV2 unit yet, and I am no expert on them but from what I'm reading here, the PAL version isn't switchable between PAL and NTSC. It's PAL only I'm guessing.
ljones
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Post by Robin Harbron on Sept 2, 2005 18:14:23 GMT -5
I don't have a C64DTV2 unit yet, and I am no expert on them but from what I'm reading here, the PAL version isn't switchable between PAL and NTSC. It's PAL only I'm guessing. It's a software "switch" - with the DTV regs enabled, set bit 0 of $d040 for PAL mode, clear it for NTSC. The guys with keyboards hooked up should be able to play with this, just with a couple POKEs in BASIC. From what I've heard, you'll need to put a different crystal in to get colour in NTSC mode.
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