Search results

Don't be. I've worked in and around the crt and analog board hundreds of times. Not once have I ever gotten electrocuted. I've even taken apart an SE/30 after 1 minute of powering down. The larger amount of electricity has been dissipated by the bleed resistor. Now large screen crt TV sets...

Despite this minor difference, the components will all fit and work. I, too, originally started out with a dual 800K Mac SE. When the ADB quit working on the logic board, I bought an SE/30 logic board from another member of here and I didn't have to do any case modding. I just slipped the new...

After you remove the logic board, start by disconnecting the raster board on the back of the crt by very gently rocking and pulling it straight off. Then you unscrew the small green wire that attaches to the chassis from the casing of the power supply. Next, unplug the P1, P2, P4 and P5...

Just make sure you don't resolder the analog board while it is still plugged in. Otherwise, you should be perfectly safe enough to attempt a resolder. It would be best for you to completely remove the analog board assembly before resoldering. That way you can pop the plastic rivets out of...

Whoops. I almost forgot about that. Okay, correction, the SE and SE/30 do have a different metal chassis with a difference of about 1/2-inch. My bad. 73s de Phreakout. :rambo:

Yes, the SE and SE/30 both share the same power supply, analog board, metal chassis and crt. That's the beauty behind such a simple design. You can update an SE to an SE/30 simply by swapping the logic boards. As far as shaking goes, I'm leaning on one or all of the plastic connectors on the...

I doubt C2 and C11 would be the culprit. I'd be looking at C3 through C7. It could be that the traces are corroded, preventing proper electrical flow. For that, you can start by tracing out where each connection on C3-C7's pads go. IIRC, the negative side of those cap's pads connect to...

Yeah, null modem is one way to do simple network connectivity. The modem can be Mac or PC; what does matter is that the modem connected to your Classic II is external. It can be any speed you want, preferably the fastest (56K baud). Cheers! 73s de Phreakout. :rambo:

Sirwiggum, Thanks for the post and welcome back to the Retro Mac community! It sounds like all the symptoms you are experiencing narrow down to the RAM and a dead PRAM battery. You'll need to access the logic board, which involves some disassembly, replace the PRAM with a new one after...

Okay, after some digging, it looks like you need to verify that the proper driver for the Zip disk/drive has been installed. If you don't have one, go online and Google "ccadams". Yes, I know, that site caters to the Mac SE, but the author has posted lots of useful software tools with regards...

Srieck, If your improvised solution for C5 doesn't work, I traced the connection out and the negative pad DOES connect with CHASSIS GROUND. So, in a pinch, you could solder a small gauge wire from there to any point at ground, such as the metal bracket behind all the connectors on the rear...

I'll do some digging, but iirc, you either have to have a specific driver for that Mac to recognize ZIP drives or there is a keystroke work-around during boot up. Not sure if it was Cmd + Option + Shift + Del + SCSI ID # or something to that degree. Hang on. 73s de Phreakout. :rambo:

Okay. Twisting SMT (surface mount) capacitors to get them removed is very risky. You can end up not only lifting the pad but also ripping the pad and trace along with it. Then you'll have no other choice but to repair the entire connection, and that isn't easy. This would involve sitting...

ClassicHasClass, Not to go off subject, but from your experience in working with software code, of the three different CPU families the Mac has lived in, which one do you find the easiest to dive into? 68k, PPC or Intel? Just curious, though. I'll bet you do have your moments of ripping the...

Srieck, I think you should be perfectly fine. Later versions of the compact Macs (SE through Color Classic II) will have a bleed resistor attached inline with the anode cap and flyback transformer or just in series with those 2 parts. The whole purpose of the resistor is to quickly dissipate...

Srieck, I've been recapping logic boards on SE/30s for a couple of years now. There are times where I have operated my SE/30 without the case plastics on and disassembled the machine shortly after power down. I think the chances are pretty slim for getting shocked by these compact Macs. The...

srieck, If your SCSI hard drive is not showing up, it could be either drive stiction, improper SCSI termination, bad data cable, bad SCSI controller chip, System Folder isn't blessed or the jumpers on the drive are not set properly. Assuming the latter is properly set, let's start with the...

I too agree with Mk.558 and Unknown_K on this. Usually bad capacitors can be a common issue, but check the easy obvious things before going any further. Also, when you get System 6 or 7 booted up, check the volume level in the Control Panel. Sometimes the previous user/owner might have muted...

Which drive are you referring to? Is it the one I sent you or the one you had internally mounted, before you received mine? Sometimes drives are hit and miss; it could be alignment issues or the heads could need degaussing (Several years of use, plus buildup up iron oxide, plus magnetic flux...

Oh, cool! I see you've tapped into the 5V and/or 12Vdc source off of the external floppy drive port in order to power up the Asante adapter. Very impressive. A self-sufficient way to power up your equipment. :approve: :approve: 73s de Phreakout. :rambo: