<https://forums.sonyinsider.com/topic/31582-mds-jb940/>
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"it should be titled what have you all been playing with since the spring, for about 2/3 months i diddent bother, then a 940 came up that i couldent resist, it had a very dodgy owh going by the pics, bit broken off it and looked a bit twisted, its been attacked by a numpty for some reason, and ive had a battle with an owh before, and lost !! but for 40 quid inc post i am not complaining, when i got it it was as discribed so i went and got a rough'ish on the outside 440 and put its drive in the 940 and after that the 940 worked spot on, the 440 became the test bed, it was a black bit that was broken down the side, ive strightned up the owh and glued on the broken bit and is now stable in that regard, fortunetly the contacts dont seem to be broken, its a bit unreliable, further testing is on going, the rest of that drive unit is fine, plays no problem.\n \n\n\n\tnext was 2 mds s50's, spares or repair for not a lot, one had a smashed front, the other ok but missing the ams knob, so the idea there is to resurrect one and break the other for spares, s50's etc are not the type i go for, these are ex bbc, however they have a little secret for those who dont know and the main reason why i bought them, they use mdm7a drive units, very handy and they are both working, main boards and psu's are also ok on both.\n \n\n\n\tfinally i bought a 440 cheap in good nick with a remote which can sell for as much as what i paid for the whole thing, stuck in standby and a buzzing noise was the discription, belt knackered and hopefully a disc stuck inside, well, no disc as it was half ejected so as somebody was able to get the disc out, this one was a little trickier, first thing was to push eject out manually to see if i could switch it on, not this time, put a new belt on next and see what it does, nope, the buzzing stopped and it went into a constant attempt to switch on loop, next was at the front on the drive there is a micro switch, i put switch cleaner on that and exersised the two little pins that stick up a few times also i dab of grease on the slides on the drive for eject as it was very dry and that seems to have cured that, wonder what the next one will be.\n \n"
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