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one of the clips of your rom socket is broken off, so the rom is not held in place correctly

Know you already checked the connections in the video interface, but could you check these again?

I created the following table to check the connections between the video rom and other components Also checked the address and data lines connectivity to the cpu and copro maybe someone can use this to check their board.

Personally I always use tantalum to replace the smd caps

The Macintosh HD does show up when booted from floppy emu, am able to open some of the folders but when I open the system folder the mac  keeps searching a long time, are there tools to check the disk?

Strange, the yoke coil seems to be from wk13 1990 Is the a coil added to a surplus CRT? whar would shipping to the Netherlands be?

Tried to install  system 7 on the Macintosh HD, got an error message unable to install. will try with another HD to check if the scsi is ok.

progress - replaced the 20 pin connector - put the capacitors on the board and booted from the floppy emu - treated the rust on he chassis - booted using a floppy disk and with the floppy emu the se/30 will not boot from the scsi hd, it starts to boot but after a while the question mark...

removed the 20 pin connector, ordered a new one. there was more corrosion under the connector so best thing to replace it. What do you recommend to seal the CPU holes with?

do you have a type / model number of this crt?

- replaced UE8 (and fixed some connections) - replaced UK6 video rom socket - made 2 wire connections from the video rom socket to J13  - burned a 27C64 eprom with the SE30 video rom - cleaned up some more - lubricated the disk drive The SE/30 is working ! so the 68030 is still working...

Have you checked the via's underneath the battery holder?

i have to replace UE8, has too much corrosion, rest of the muxes seem ok. the rom socket looks ok, with a magnifier I can see some black corrosion, have to figure out how to remove it the rom did have corrosion on the upper half of the connection points , removed the corrosion using a fiber...

Got another SE/30 with leaking maxwell. This one has a different leak pattern while is was stored in an apple Macintosh bag on its back. you can see the leakage dripping down to the ports on the back side of the board. the video rom lost a number of legs the 68030 has holes from the corrosion...

what is your location? you should als consider replacing UE8

if CP11 is the one next to the flyback, it's 220uF 50V

the following string in the ROM appears to be a list of programmers. "CSLWRLBBMABOEMTDAHJTCFJLMBKCRCLAKEHBRDCDAFSHFTJ" Some of these people are pictured, but not all   CSL – C.S. “Tony” Leung WRL – Wayne R Loofburrow BBM – Brian B McGhie ABO – Alan B Oppenheimer EMT – Ed M Tecot DAH –...

C33 and C37 replace with 4n7 300Vac

removed one from the board to check the markings, the diode is a PH-73D the resistor next to it is 10 ohm