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Old 11-24-2015, 01:46 PM
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MIPS MIPS is offline
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Join Date: Jun 2014
Location: West Canadia
Posts: 1,021
Sony DVK-2400 and DVC-2400 set

This is the same kit that belonged to Sean730. I got it on the promise to use it for something and I dang well will.

Now that it's up North I've had a better chance to look it over. The appropriate service manuals and instruction manuals came along with it but both the camera and the VTR are extremely rough. Lots of dents. Lots of scratches. At least the external power supply is the proper one so yes Sean, it will work fine.



The viewfinder eye cup was nowhere to be found and the viewfinder was rattling about. It had also stopped displaying a distorted raster which was not promising. Opening it up however I discovered the plastic friction ring for the viewfinder had broken into three pieces at some point and a third of it along with a screw had simply vanished. The fact that one of the screws was also not original meant someone had been in here before to investigate the same problem. The dead CRT turned out to be the tube had shifted forwards enough that the socket popped off. This thing must of been REALLY tossed about in shipping as it must of taken a decent amount of force to shift the tube at all while clamped but I gotta hand it to Sean, his packing job was A+ and nothing was damaged. Pushing it back and plugging it back in once again gave me the distorted raster. Something's wrong but before I can play with the camera to find out what exactly the VTR needs to be inspected given how it generates the sync signals for the camera to work at all.

The lens was also not the original. At some point they had changed it for a 13mm Elgeet. By the time I got it the grease in it had gummed to the point neither the focus or the aperture control would move. While a teardown and cleaning fixed that I couldn't seem to get the focus ring to mesh with anything to make the lens actually focus so either I've forgotten a reassembly step or further problems are afoot. Well at least it uses a C-mount thread so I can use one of my other lenses.




I needed to get the VTR working before I could go any further. The manual stated that the head should spin up when put in standby but it did not. The manual also states that the initial spinup applies a heavier load using another circuit so either that circuit had failed or it wasn't being powered. I briefly scanned the service manual and began following the procedures to test and adjust the voltage regulator. The first issue was that while the +12 was fine the +9 was not. The regulation circuit consists of a 2SD28 which tested fine and two 2SC401's. One tested fine but the other did not.




There are a number of known substitutes but they are all equally as obscure but at least not too expensive on ebay. Couldn't find anything to verify if a 2N3904 would work instead. Need opinions here.
While there are two belts in this thing I'm surprised at their condition. They aren't immediately unusable or not stretching back into place but only time will tell if they are still good. There's also two plastic screws for the 2SD28 which have broken and will need to be replaced.

Stay tuned for more....
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