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#1
W
Technical support - Hardware related / CTM 644 Vertical Hold Issues
Last post by Wiggs1979 - Today at 19:33Hello,
Firstly, just wanted to say thank you for such a great forum - I've been a long time lurker and read so many helpful posts on here that have helped get my 464's and 6128 fully functioning. I was never a CPC user back in the day, but I have a growing collection of retro computers!
I have a CTM 644 that wasn't working, but having replaced the HOT it seems to be back to life again. However, the vertical hold adjuster on the rear seems to need tweaking every time I power on the machine connected to it, else I have a rolling image or an image that is out of sync, split with part of the black border. If I leave the screen on for a bit, occasionally it'll start rolling very slowly too. The adjustment seems to be very sensitive, very small adjustments required, is that normal? Before I go desoldering and hunting for a suitable replacement 20k POT as I don't have anything to hand, I wondered if it's there's a common issue I might be missing? It's got the Z70215 PCB. Other than that, it shows a good, clear picture when it's not rolling!
Thank you!
Firstly, just wanted to say thank you for such a great forum - I've been a long time lurker and read so many helpful posts on here that have helped get my 464's and 6128 fully functioning. I was never a CPC user back in the day, but I have a growing collection of retro computers!
I have a CTM 644 that wasn't working, but having replaced the HOT it seems to be back to life again. However, the vertical hold adjuster on the rear seems to need tweaking every time I power on the machine connected to it, else I have a rolling image or an image that is out of sync, split with part of the black border. If I leave the screen on for a bit, occasionally it'll start rolling very slowly too. The adjustment seems to be very sensitive, very small adjustments required, is that normal? Before I go desoldering and hunting for a suitable replacement 20k POT as I don't have anything to hand, I wondered if it's there's a common issue I might be missing? It's got the Z70215 PCB. Other than that, it shows a good, clear picture when it's not rolling!
Thank you!
#2
Quote from: dodogildo on Today at 19:02Is it working?I checked too quickly, now CPC doesn't work.
So now I have to repair mine too.
#3
General Discussion - Introductions / Re: Why did you choose the CPC...
Last post by Devlin - Today at 19:26I got mine as a hand-me-down from my dad, who had just upgraded to an amiga.
#4
C
General Discussion - Introductions / Re: Why did you choose the CPC...
Last post by cwpab - Today at 19:08Yaaaassssssssss! For once, I'm in the winning team. I also received it as a gift, so I had NO CHOICE!
Or hadn't I?
I mean, imagine you're an irritating, intellectually gifted kid who knows it all when he's 9. Your dad puts his CPC in your room, but you reject it. REJECT IT.
Why? I dunno...
- "Excuse me, my dear father, but I don't think you are prepared for the technology shift that's about to happen by letting such a machine in the hands of a child like me".
- "I deny the proposal. The exposure of my developing eyes to such lights, pressumably at late hours in the night, would surely affect my sleep cycles".
- "Does the Commodore 64 Club know about this? Because I believe you should tell them, they may need this statistic later".
Perhaps it would be more interesting to say why my dad wanted one. And I guess he wanted it because it was cool, it looked professional and it had colors. His previous computer was a 48k ZX Spectrum, and he most likely saw the CPC as his first chance to have a serious computer to do his text processing and simple physics simulations. Today he likes to play with topographical maps and stuff, so I guess in 1986-1989 he tried a number of applications for this machine... apparently he only liked one game: the chess one (not sure if 3D Voice Chess or Master Chess, maybe both... I hate chess!).
Or hadn't I?
I mean, imagine you're an irritating, intellectually gifted kid who knows it all when he's 9. Your dad puts his CPC in your room, but you reject it. REJECT IT.
Why? I dunno...
- "Excuse me, my dear father, but I don't think you are prepared for the technology shift that's about to happen by letting such a machine in the hands of a child like me".
- "I deny the proposal. The exposure of my developing eyes to such lights, pressumably at late hours in the night, would surely affect my sleep cycles".
- "Does the Commodore 64 Club know about this? Because I believe you should tell them, they may need this statistic later".
Perhaps it would be more interesting to say why my dad wanted one. And I guess he wanted it because it was cool, it looked professional and it had colors. His previous computer was a 48k ZX Spectrum, and he most likely saw the CPC as his first chance to have a serious computer to do his text processing and simple physics simulations. Today he likes to play with topographical maps and stuff, so I guess in 1986-1989 he tried a number of applications for this machine... apparently he only liked one game: the chess one (not sure if 3D Voice Chess or Master Chess, maybe both... I hate chess!).
#5
Is it working?
#6
General Discussion - Introductions / Re: Why did you choose the CPC...
Last post by eto - Today at 18:36My parents were convinced by their friends that a Schneider CPC 6128 would be the better choice compared to a C64.
I did not care so much about what exact computer I got as long as I could program in BASIC and get some nice games. I also liked the idea to have my own monitor and would not be forced to sit in the living room, so I did not object - and later I was really happy with my CPC.
I did not care so much about what exact computer I got as long as I could program in BASIC and get some nice games. I also liked the idea to have my own monitor and would not be forced to sit in the living room, so I did not object - and later I was really happy with my CPC.
#7
Cool stuff! 
#8
My DIY hardware from the early 90's
CPC Joy Interface for amiga mouse and sound card. socket for ADC0809
CPC Joy Interface for amiga mouse and sound card. socket for ADC0809
#9
Again, beautiful gfx.
#10
General Discussion - Introductions / Re: Why did you choose the CPC...
Last post by ZorrO - Today at 17:09Nothing else was sooo pretty and soo cheep with small drive, good keyboard and monitor like 6128, and I read in magazine about 80 columns and good Basic. Years later I seen how slowly was drive and Basic in other 8bit, I had no idea about it during buy, but that makes me feel it was even better choice than I though before. I had no idea about slower sprites either, but I don't care about it at all. All Polish magazines says CPC is good but no soft for it in Poland, but I was soo naive I believed Basic seems so easy I can write anything what I will be needed. I had no idea even CPC Basic is too slow for few things, and I was to lazy to learn Assembler, but for my lucky wasn't so bad with soft like they say. CPC 6128 was soo elegant, not like other toys, and big floppy for them was soo lousy, hard part was raise money and it took me several years, but choice was easy. 