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It's hard to judge caps just from the outside, especially the small one's like used in FDD's. I have recapped all my FDD's as well a while ago and it revived several with the same error than you have.
You can also ESR test the caps, however for a few buck you can easily recap the drive. An 800K...
It depends on what the seller has recapped. Everything or just the logic board ? The analog boards of the Classic series are the worst I have seen as for leaking capacitors.
They need to be replaced.
Are the voltages stable immediately upon power on or do they rise steadily ? The HDD needs a...
I would buy those with the ethernet boards. The board alone is worth more than 100$ on Ebay. Battery leakage can be an issue but in most cases they don't boot anymore with a leaked battery.
Anyway, for parts alone, it looks like a good bargain if there is still life in it.
One with a good HDD...
The ferrite cores are very fragile. It's best to adjust them only if it's really necessary like after Flyback replacement.
The part is the same in Compact Macs from an 128K to an SE/30 as they use the same flyback.
I've exchanged them with success between these boards. Haven't tried it with...
I would be looking for a faulty Ram module first. I've had exactly the same problem with my SE/30 a few weeks ago. Do you have another Mac where you can test the 4MB modules ?
It's likely that 1 or more of them are faulty. Are they 8/9-chip modules or 2/3-chip ?
The SE/30 apparently doesn't...
A better upgrade for your SE/30 and Classic II would be to fill the memory banks with 4MB modules. They are easy to find in the USA.
8MB on an SE/30 won't give you much free ram if you run OS 7.5.5.
The Classic II will take 2 or 3-chip modules, so will the SE/30. However in most cases the Plus...
The board doesn't look good, lots of corrosion. I think it's beyond repair. One can always try but it would take a lot of time and chances for success are slim.
Don't forget to recap the Analog board of your CC as well as the capacitors are degraded and leaking.
Good Luck
I'm using old 3Com OfficeConnect Hub 8C or 16c. This is a pure 10 Mbps hub with a BNC connector as well.
It's overkill to get a 10/100 Mbps switch or Hub as the Compact Macs are too slow to even get 10 Mbps speed.
Switches is trial and error, 10/100 Mbps can work sometimes but 10/100/1000...
I replaced the cells of original Powerbook 100 series batteries with 5x Panasonic Eneloop Pro cells rated 2500mah. These are good quality Japanase cells and meet exactly the specs of the old Apple battery.
I re-used the 2x auto resettable heat sensors from the original battery pack to protect...
Have a look at C4. Does it make proper contact to the pads on the logic board ?
When I look at the photo, the position of the capacitor looks like it has turned a bit counter clockwise. You can see that the negative marking on the C4 capacitor in not 100% aligned properly.
I would re-test all...
I just bought the G5/DP2.3
I think this will be a good solution for the long term in addition to my 68K Mac collection.
I got it cheap locally for 75$ in very good condition so I couldn't let it go while the Cube was rather expensive.
The Cube has power issues and the PSU is extremely hard to service. However I do like it a lot.
The Powermac G5 has the advantage that it's more powerfull and not that old yet to get a lot of issues I suppose as long as you stay away from the liquid cooled models.
I'm a collector of Vintage 68K Macs.
However I do need 1 machine that's more powerfull to browse the web and download StuffIt files and convert these to Bin or Hqx format for use on my 68K Macs. Before I used an Imac G3/400 DV but the flyback went south so I'm thinking to replace it with a Cube...
Yes the Panasonic ECW-F2395JA is the right replacement for C1: it's a bi-polar, high frequency Film capacitor. They don't exist in radial electrolyte version like the original one anymore as far as I know. Since this capacitor is Bi-polar it doesn't matter how you mount it on the PCB ( +/- )...
You can actually still buy the identical filter capacitors. There are 3 on the board and are from Kemet. Here are the part numbers and correct values for the International 240 Volts Analog board.
The filter capacitors have the following values:
-2x 4700pf 250Vac - Kemet PME271Y447MR30...
Sorry I made a mistake here. I was looking at the schematics of an original 110 volts analog board instead of the International one so my orignal reply was faulty. Oops... :I
Indeed James has identified the component correctly.
It's a fast SCR ( Silicon controlled rectifier ) E0122 (or E0102YA). It's part of the power supply circuit.
http://pdf.datasheetarchive.com/datasheetsmain/Datasheets-35/DSA-697395.pdf
These are both boards from a 128K/512K, not an original Plus board.
I see you have not replaced the brown film capacitors in the high voltage circuit, the filter caps and the axials.
C5, C9 and C18 are not original and have been replaced earlier. Are these values right ?
As for variations for...
The repair document is probably right as it's made for USA versions of the Analog board working on 110 volts.
We in Europe have the International version at 240 volts that can work at 110 volts as well. That's why the numbers of the resistors and other components don't match on the schematics...
I use old 3Com Officeconnect Hubs, pure 10 Mbps ( model Hub 8C ), they even have a coax connection too and can be bought very cheap.
Then I uplink them to a gigabit switch, however all my vintage Apple computers are connected to the 10 Mbps hubs. I never had any problems.
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