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What are the odds of that getting stuck right there.  crazy..

Awesome, Thanks Bolle for the heads up on where to look.  One question which will probably echo macclassic's question.  In this section of the schematics it looks like the Ux8 chips are listed twice.  I assume this is just for each side of pins?  Also say UA8 for example.  Pin 5 just goes to...

Got the logic board recapped and reinstalled and apparently the resoldering of the flyback clip was successful.  I have a display.  The CRT acted completely dead without a raster or even light light up without the logicboard connected.   This is probably basic mac knowledge, but I didn't know...

Got the board recapped and looks like I still have broken traces somewhere.   I get the startup chime but otherwise it;s WYSIWYG..

Had a quick question on the last traces I have to repair on my se30.  On RP2 Pin 13 I get continuity on R41, but I do not on UD12 Pin 18.  On RP2 Pin 17 I get a beep on R42 but not on UC12 Pin 2.  Same thing with RP2 pin 18, I get a beep on R43 but nothing on UC12 pin 1.  The fact that I get a...

Well I managed to get a complete analog board off ebay for a flyback replacement.  I noticed on this analog board I got today that the wire in the cap is wrapped around a screw.  The original flyback was just a wire soldered to the clips.   I would just cut and splice the wire on the original...

Just got the power supply and analog board completely recapped and was reassembling it when the darnest thing happend.  I was putting the flyback plug back on the CRT and the little teeth or hooks that connect under the suction cup just fell out on the bench.  There was a very small bit of wire...

Found this reference that matches the datasheet that has capacitors inside the filter.   http://jerome.vernet.pagesperso-orange.fr/SE 30/Repair Mac.html#NoPointer The mouser part I ordered 652-4120R-601-250/201L definitely does not test the same for resistance and/or capacitance from the...

I take it that the L vs LF on the part number 4120R-601-250/201 should be an okay substitute? The last post from that thread was in 2013.  Throughout that thread it sounded like they had some issues locating stock.  The 2nd post shows a datasheet with capacitors within the filter.  I am not...

Well not sure what is different, but the original filter I pulled now tests 44.8~45.2 ohms across all the pins except the four on the ends which are common ground.  The new filter I got today (4120R-601-201L) tests 50.0 ohms across, with the same four pins on the corners as a shared ground. ...

I do recall in my google searching, running into a post somewhere that showed someone subbing a 16 pin filter for the original 20 pin one.   That or maybe apple themselves changing to a 16 pin later in the SE's lifetime?   So is this filter just a resistor network, or is it suppose to have...

Couldn't find a general section for this question so since it was an SE30 thought I would post here.  I have about 8 or so traces that still appear to have the protective layer on them and they do ohm out okay, but the trace is corroded looking underneath.  What is the proper way to handle...

I can also reinforce what already has been said with cold solder joints. I got a new to me SE30 this week and one pin on the P1 connector on the analog board had completely broke away from the solder.

RP2 on my SE30 has a case of the green legs on both sides and there is about 4 bad traces in that area.  Pulled up the RP12 last night to get a better idea on repairing the traces and thought I would replace the chip while I have it out.   Checking if this is the right replacement part from...

Thanks Tattar8 for explaining what the numbers/markings referred to.  When I get home I will have another look at the schematics to try to follow that logic and make the connection on how to read and understand the schematic fully between pages.  Appreciate the time and help with this. ...

Thanks Bolle for that info, I wasn't quite sure if I was counting in the right direction. This is really my first time tracking down pins on IC's that isn't in a DIP package.  I checked pin 41 on the schematic and it looks like it is in the same group as pin 10.  It labels pin 41 as A0.  Looks...

Got my first SE/30 this week and have been looking over the traces after getting the battery and caps off the board.  I have a questionable pin on UE10 that I believe is pin 10.  The schematic shows this line connecting to something off screen.  Can someone help me find a test point to check for...

Thanks AkwardPotato, I got those ALPS switches you had posted in yesterday, and got them installed and they work like a champ.  

Got the drive back together and it works.  What may have been the issue was there was a cardboard type paper that I put back the way I found it, which was I believe on the wrong side.  This no doubt caused the shorted condition, smoke, and the drive just not wanting to read anything.  Keeping an...

Still glitch free, maybe it was just a pin on the cpu not making good contact.  Diagnostics ran for two days in a loop, no errors in that time.