Hi guys, I recently got a IIc the computer is working just fine no issues (knock on wood) I can hook it up to a crt tv and use the computer no problem. however I also got the IIc monitor and I turned it on for the first time today. lets go back just a bit, I bought it on ebay and it was working however before the seller shipped he tested it and told me that he got a wavy line on the screen but no picture. we worked out a deal so I got a small discount as I still wanted it. fastforward to today I turned on the screen and booted up the computer and there was nothing on the screen, I turned up the contrast all the way and I could just make out the image on the screen but it was also sort of wavy. I tried adjusting the the video cable to make sure it had a good connection but nothing really changed, I messed with the pots but about that time the picture totally disappeared and I could not get it back. I have tried power cycling the monitor but have not gotten an image back. When I turn the screen off I do get that typical crt screen flash and line in the center of the screen for a quick second so it seems that part is working. Any ideas?
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IIc Monitor Issue
- Thread starter psypher39
- Start date
so I just did a recap all except C102 47uf NP 16v and C515 4uf 25v as i ran out of stock on those. turned it on but no change, it powers up, turning the 3 pots on the back and the contrast knob has no effect and the screen is just black. I also put some contact cleaner on the pots which helped them turn nicer but no effect to the out put. I confirmed that the video in jack was getting good contact to the board and wire coming in too. Again when I turn it off I get the flash of a typical crt turning off. getting stuck any tips on what to try next?
okay guys haha I figured it out. 
so after doing the recap and putting the monitor back together 95% or so didnt want to put the shroud and handle on if I was gonna have a cap blow or need to make some more adjustments. anyway after it didnt work yesterday I spent all night thinking about it and reading service manuals and schematics and had a few things I wanted to check today. I turned the machine and was just gonna start to open it up again and I noticed something, the cable that goes to a voltage regulator near the transformer was not actually plugged in it was just resting near it (pretty much right on top of it). the wire memory placed it so close to the connection that I didnt notice. anyway I plugged it in and it fired right up! man what a silly mistake but Im so happy now . So yea bottom line a recap fixed it so if you have a similar issue just recap and then make sure you plug everything back in haha.
so after doing the recap and putting the monitor back together 95% or so didnt want to put the shroud and handle on if I was gonna have a cap blow or need to make some more adjustments. anyway after it didnt work yesterday I spent all night thinking about it and reading service manuals and schematics and had a few things I wanted to check today. I turned the machine and was just gonna start to open it up again and I noticed something, the cable that goes to a voltage regulator near the transformer was not actually plugged in it was just resting near it (pretty much right on top of it). the wire memory placed it so close to the connection that I didnt notice. anyway I plugged it in and it fired right up! man what a silly mistake but Im so happy now
. So yea bottom line a recap fixed it so if you have a similar issue just recap and then make sure you plug everything back in haha.Similar threads
