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What version of OS X are you running, 10.4.x (Tiger) or 10.5.x (Leopard)? Sometimes a blank display with no system response could be either a software issue (possibly a driver or extension, preference file) or hardware (the graphics chip ATI Mobility Radeon 9700, video data ribbon cable...

coius, You're not that far off. Normally, in most cases, a problem like that turns out to be a loose ribbon cable; one that wasn't securely connected to begin with or excessive heat worked it loose. But still, re-seating the connections should fix the problem. As far as the ATI chip on the...

Ah, the Tandy 1000SX. 'Twas my first DOS PC, as well. I got so good at tearing that machine apart and reassembling it in about an hour. I tried to put a 3.5" 1.44 MB floppy in it, but the PC/XT bus wouldn't take it. So I waited until I upgraded to a 286 clone and got it working on that. My...

I would probably look at the very entrance of the drive (push the door open) and see if there is any debris, dust, etc., blocking the 2 micro-switches on the left and right corners. If not micro-switches, then they may be optical sensors. Basically, the one on the left senses whether the write...

You can try swapping ROM SIMMs and RAM between both machines; it's possible they will work better after re-seating. 73s de Phreakout. :rambo:

JDW, it's a horizontal line, not vertical. retrofreak83, I would look at possibly the second solution to your symptom on the SE/30 Repair Mac site; and that would be the Vertical Sweep IC at U2 (TDA1170A, 12-pin). If you would like a replacement, I've got one. I encountered the same problem...

No problem. It's good to know that this was in fact a loose connection aka hardware issue and is fairly easy to fix. Mine works fine, although I may have to find a better web browser than Firefox, since it eats up resources like mad and I can only go up to the latest version of 3.6.x (25 as of...

duxbridge, If I recall, there are some 68kmla members who have the expertise in recapping logic boards. I can do it, but the shipping cost is going to be too expensive for you to send to me here in the US. I'd recommend sending out a private message (PM) to those active members who live in...

duxbridge, Try here for fixing your problem. Sounds like either corrosion on the metal contacts of the RAM and/or ROM SIMMs or a RAM configuration issue. For the former, use a pencil eraser, small wire brush designed for circuit boards and rubbing alcohol to clean off the corrosion of both...

Yeah, I'll check those out in a little bit and report back. Thank you! 73s de Phreakout. :rambo:

Once again, you've proven me wrong. :lol: 73s de Phreakout. :rambo:

Okay, I had completed a recap of the logic board for member of this forum. New capacitors in place and thoroughly cleaned of debris. I go to attach the board to my test chassis for the 24 hour test, turn it on, I hear the normal startup tone, hard drive booting the machine up, but no normal...

jsarchibald, I take it you're talking about your quote in the last line of the signature. Maybe, but iirc, the situation was from a post about a Youtube video of someone who killed a Mac (I'm unsure of which model, laptop or desktop). By kill I mean take a perfectly good working machine and...

Okay, I guess since the Pismo didn't successfully connect to a base station via the Airport card, it didn't store the results and additional settings as a preference file. Phoo! So it may be both hardware and software related. What about the ribbon cable running from the Airport card slot to...

I still think your sound issue is due to a bad DC-In/Sound board. I don't think the Pismo has any other way to detect if you have internal speakers connected or not. All that is controlled from the earphone/Sound Out jack on its built-in momentary switch. Another thing you could try is using...

Okay, so the freezing up happens before extensions are loaded and the mouse cursor is missing. The cursor does disappear from time to time during startup and that's normal. If the cursor were to disappear, all you see is a bright raster (light grey background) and no startup would indicate to...

Okay, this could be normal, but could also mean Simasimac. Verify that the volume is turned up, say about 3 or higher, and if you get audio, it probably may not need a recap. Although, eventually, you will need to consider having it done anyway. It's probably a corrupt System startup or a bad...

Replacing the capacitors on the top side of the logic board can help, but I think the symptom you've described and checkerboard pattern best indicate issues with the RAM. One thing you can try is to remove the sticks of RAM from their slots and thoroughly clean the contacts. You can use...

Boy, this makes me want to pull back out my old electronics text books I was given back in high school. I had taken the course for my junior and senior years through a vocational campus. Mostly taught about AC and DC circuits, component recognition, safety, series and parallel resonance...

Okay, my mistake. I had thought RP3 was in between the internal and external SCSI ports, but I have been corrected. That's what you get when you don't have the complete entire schematic of the logic board. I am trying to trace out an entire dead board and then transfer my findings into a home...