As discussed in a previous thread, I now have two Sony DAT decks that need repair. One DTC 59ES that loads tape but doesn't move it in any fashion and a DTC670 that doesn't even load the tape.
Although I suspect what is wrong with both machines, I haven't yet repaired them or know what exactly the problem is. It will all unfold as I disassemble them, along with pictures and discussion.
I will - hopefully - be able to repair the 59ES as it appears to show the "sluggish" FF/REW syndrome, only so much pronounced that not even PLAY engages properly. The 670 seems an easy repair of a different nature.
As the pictures will show, despite the differences, the transport mechanisms are identical. In fact, I've seen only two different transports so far:
* DTC55ES has what appears to be the oldest (and best IMHO) transport with 3 motors and lots of metal parts.
*DTC 57, 59, 670, 690, Z700 all share the same transport block with the 57 lacking a sensor block and thus having a narrower ribbon cable. But parts are totaly exchangeable.
I also have a PCM R500 that has 4 motors and works like a charm, so I haven't opened it up (yet). I bet this one has a different transport block as well.
The only differences between all the above decks are the loading mechanism. It is nice to see how Sony realized their mistakes in the earlier models and improved upon them with every new model. So if you have any of the above decks with a mechanical glitch, read on.
So, enough talking, let's start the stripping...
Although I suspect what is wrong with both machines, I haven't yet repaired them or know what exactly the problem is. It will all unfold as I disassemble them, along with pictures and discussion.
I will - hopefully - be able to repair the 59ES as it appears to show the "sluggish" FF/REW syndrome, only so much pronounced that not even PLAY engages properly. The 670 seems an easy repair of a different nature.
As the pictures will show, despite the differences, the transport mechanisms are identical. In fact, I've seen only two different transports so far:
* DTC55ES has what appears to be the oldest (and best IMHO) transport with 3 motors and lots of metal parts.
*DTC 57, 59, 670, 690, Z700 all share the same transport block with the 57 lacking a sensor block and thus having a narrower ribbon cable. But parts are totaly exchangeable.
I also have a PCM R500 that has 4 motors and works like a charm, so I haven't opened it up (yet). I bet this one has a different transport block as well.
The only differences between all the above decks are the loading mechanism. It is nice to see how Sony realized their mistakes in the earlier models and improved upon them with every new model. So if you have any of the above decks with a mechanical glitch, read on.
So, enough talking, let's start the stripping...