Juror22
Well-known member
I couldn't help picking up another SE, largely because of some of the accompanying items that came with it.
I did not initially power it up because even though it was sold with pictures of the screen working (albeit with a fault code) it was going to require a lot of work to get it ready and I didn't want to break things because I was impatient. So far, I have started with the easy items and worked up to the AB, which is a later board variant and seems to have a few issues:
1) there is a hole burned through where someone poorly bridged a circuit.
2) there is some corrosion where the power connector joins up. (I have another identical revision board that also has this in the exact spot - not from any battery damage or obvious moisture anywhere else, just corrosion on a few of the power connector pins - weird - I've already cleaned up the power supply connector.
3) the CRT was grafted on - the four main connection wires were just twisted together (individually) and then electrical taped <sigh!>
4) and this is the big one -the flyback is a different number than I've ever seen on these (MF 1434) - is this even a flyback for this, or did someone just grab one from a bin and solder it up to make it work for long enough to sell it?
I've got a couple of donor boards and spare parts enough to go around that I think I will have a working board when I'm through, but WOW, really?
See 'before' pictures below and I will pass along updates of what I replace or fix as I work through it.
...can't tell so much, but C15 was so hot the covering became brittle, cracked and fell off (all before I owned it - I did not power it up like this!)
On P3 you can just make out the corrosion (green color) on the pins.
I did not initially power it up because even though it was sold with pictures of the screen working (albeit with a fault code) it was going to require a lot of work to get it ready and I didn't want to break things because I was impatient. So far, I have started with the easy items and worked up to the AB, which is a later board variant and seems to have a few issues:
1) there is a hole burned through where someone poorly bridged a circuit.
2) there is some corrosion where the power connector joins up. (I have another identical revision board that also has this in the exact spot - not from any battery damage or obvious moisture anywhere else, just corrosion on a few of the power connector pins - weird - I've already cleaned up the power supply connector.
3) the CRT was grafted on - the four main connection wires were just twisted together (individually) and then electrical taped <sigh!>
4) and this is the big one -the flyback is a different number than I've ever seen on these (MF 1434) - is this even a flyback for this, or did someone just grab one from a bin and solder it up to make it work for long enough to sell it?
I've got a couple of donor boards and spare parts enough to go around that I think I will have a working board when I'm through, but WOW, really?
See 'before' pictures below and I will pass along updates of what I replace or fix as I work through it.
...can't tell so much, but C15 was so hot the covering became brittle, cracked and fell off (all before I owned it - I did not power it up like this!)
On P3 you can just make out the corrosion (green color) on the pins.