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I have a Performa 630 and the other day it let out some magic smells without any smoke. Now the floppy will not read. I swapped another board in, and the floppy works on that board so it must be the board. I don’t see any visable damage on the board and the only wonkiness I’m noticing is 0L on...

H hold was too high and triggering hv shutdown. All good now.

Ok here’s an interesting one. I took the bezel off to retrobrite it. I put it back on. Now when I power the unit, you can hear the screen energize for about 5 seconds then there’s a click and the screen powers down. The board stays powered. Power is normal at the 24v tp, unit starts up with all...

Ok I feel stupid. The vhold was a bit lose and with some rework it is back in shape.

Ps. I hooked it up to a vga monitor and it looks fine, so it’s not the cpu.

I mean honestly that’s one screw, so not so bad. I know a lot of people hate messing with yokes. 🤣

I recently recalled this m1296 which has bad vertical collapse. On first run it looks fine as in the picture. I went into the monitors panel and hit identify monitor and it’s coming up built in monitor. Then I did a soft reboot. Now I’m getting this: So thinking I may have borked the...

So it was a yoke issue. Replaced it and now the geometry is correct. After the standard adjustments that is.

It doesn’t have a degaussing coil, but I used a manual one and it did nothing noticeable at all unfortunately.

I don’t have AppleCare. 🤣

I’m thinking it’s that v/h ic going wonky.

this one doesn’t have any. It’s kinda hot glued in place from the factory and it’s intact. It doesn’t move in the slightest.

There’s two rings and they only adjust the position when moved. I marked them before trying to use them and they don’t fix the problem and I moved them back to the original marked positions.

It’s about 1/2 inch at the top and 3/4 at the bottom and the word trash is slanted.

I can read a tape measure. I adjusted with a tape on the screen to exactly the specs in the book. And I can turn it down to a 1 inch cube and the problems persists. This is not the solution. It’s still collapsing into reverse pyramid even turned down signifigantly.

It persists and as I said before it was fine and deteriorated. This is 7 1/8w x 4 3/4h like the source you quoted. Same problem.

Believe the flickering is from the diodes at d3 and d4.

So I recapped this unit over a month ago, and it looked pretty good geometry wise. Then all of a sudden I started getting pincushion at the bottom, and a slight overscan on the top left. I’ve tried adjusting the magnetics on the yoke, didn’t affect it. I checked the values of all the new caps...