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Not bad for $ 350

IIRC BR103 is not a direct replacement of the original and no longer available Q12. sorry but the BR103 is not reversed in you picture, again, i think it should be the opposite of the footprint in the board.

So if i am not mistaken, the switch you are talking about is SW2. Center pin is not connected to anything, and just a mounting point. One side is connected to ground, the other side to pin 46 of the Sony CX20185 chip. This chip is a read/write amplifier, so when the carrier is down, pin 46...

Not clear to me but the switch should be normally open when there is not disk inserted, and closed when the disk is in, and the to carrier is in the bottom position. Your best option is to have a copy of the schematics and using a multimeter, have a look at what trace goes where and see what's...

Caps are most of the time cracked on the Classic AB, neved have the issue present on other models, i leave them alone...

Pretty cool, thanks

Hard to say from a picture but is C1 properly soldered on ? The negative side doesn’t look like it is.

I use a side cutter plier to remove the head first. Then remove the remaining legs, I have removed many (too many) capacitors, almost never had any issue.

Never seen this HD. Keyboard is a 128 or 512k not Plus… better deal.

Still trying to get it working.

Probably a broken trace, use a multimeter and check continuity from the chip and to any capacitor

Hard to say, many early (most) Apple Lisas were first built as Lisa 1 and converted later on.

I agree with the acetone from the inside, you can apply a small amount with a Q-tip and press both sides when wet. The bound should be invisible and pretty solid, i have tried the method and is pretty awesome if you take your time. any other method is ok, but not as solid though. If you go...

I have a similar issue, no battery issue, but getting the chessboard pattern also. Logic Board is really clean, getting activity at the CPU, but A18 and A19 don't seem great. I have swapped RAM and Roms, and the BBU for a test, but still getting more or less the same issue (i have swapped all...

D is usually a diode

Hi, Voltage at pin 6 should be 12 volts (AC) unless you have a faulty DP1 (zener diode 18 volts, and 12 volts after RP11) maybe the Zener

Bonjour également, Stepleton will help you for sure, probably knowing Lisas inside and out, he also has several machines, equipment and connections. Yes, I think the first step is to get this French system archived. A Lisa 1 with the original faceplate and Twiggy drives is very sought...

By reversed read flipped a 180 degrees from the original one.

The Unidisk (3,5) can be used on the Apple IIc and is plug and play. But to be used with the Apple IIe, you need a card. Not many were sold (as most of the games and software was available in 5,25 size) The Unidisk can also be used in the Apple IIgs IIRC. This drive is special, this is not...