rebeltaz
Experienced Member
I tried to PM ChannelManiac (as suggested by wmmullaney) but I didn't get a response. I'll post it here in case he (or anyone else) can help...
I could have sworn that this thing worked the last time that I tried it - several years ago. I went to use it a few weeks ago and the red power LED came on and then went out. I tried to measure the voltages on the power supply, but I couldn't find anything on any of the pins. One of the guys here, William I think, sent me another power supply. The power LED did the same thing. Come to find out, there were some cold solder joints on the mainboard at the switch and the power input jack. After resoldering those, the LED stays on like it should. I don't know what I was smoking when I tried to measure the original power supply I had, because it works fine and all of the voltages (or rather both) or where they should be.
Anyway, I hooked the C64 up to a TV and turned it on. At first, there was a solid green (I think) screen that never went away and the system didn't boot. So I turned it off, waited a minute and then turned it back on. 99% of the time, doing this, I got a blank screen. Once or twice I got the solid color screen. Now, no matter what, all I get is a blank screen.
I tried reseating all of the socketed chips, with no effect. Then I figured if there were cold solder joint in that one section of the board (which looked fine to the naked eye, by the way), then maybe there were others that I was missing. So I resoldered the entire board. I assume that these older chips are more sensitive to static and heat trhan the modern ICs that I am used to working with, so I made extra sure that there was no static and that I didn't overheat the ICs. Still no effect.
So here we are... I was wondering if this sounds like the PLA chip that I have read about or it it sounds like something else. If it is that chip, where can I find one?
Thanks...
I could have sworn that this thing worked the last time that I tried it - several years ago. I went to use it a few weeks ago and the red power LED came on and then went out. I tried to measure the voltages on the power supply, but I couldn't find anything on any of the pins. One of the guys here, William I think, sent me another power supply. The power LED did the same thing. Come to find out, there were some cold solder joints on the mainboard at the switch and the power input jack. After resoldering those, the LED stays on like it should. I don't know what I was smoking when I tried to measure the original power supply I had, because it works fine and all of the voltages (or rather both) or where they should be.
Anyway, I hooked the C64 up to a TV and turned it on. At first, there was a solid green (I think) screen that never went away and the system didn't boot. So I turned it off, waited a minute and then turned it back on. 99% of the time, doing this, I got a blank screen. Once or twice I got the solid color screen. Now, no matter what, all I get is a blank screen.
I tried reseating all of the socketed chips, with no effect. Then I figured if there were cold solder joint in that one section of the board (which looked fine to the naked eye, by the way), then maybe there were others that I was missing. So I resoldered the entire board. I assume that these older chips are more sensitive to static and heat trhan the modern ICs that I am used to working with, so I made extra sure that there was no static and that I didn't overheat the ICs. Still no effect.
So here we are... I was wondering if this sounds like the PLA chip that I have read about or it it sounds like something else. If it is that chip, where can I find one?
Thanks...