Marcus Conway - ebirder
Well-known member
The optics have moved inside my Kowa TSN 823, I bought it from new over ten years ago - any ideas how I can get it fixed?
Thanks
Thanks
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Sending Kowa for repair (1 Viewer)
- Thread starter Marcus Conway - ebirder
- Start date
Marcus Conway - ebirder
Well-known member
Thanks Adam - is Paul on BF?
Jaff
Registered Member
Hi Marcus,
Kowa servicing is now being carried out by
Alpha Digital Services
111 Loverock Road
RG30 1DZ
01189 337000
Chris.T.
NoSpringChicken
Well-known member
Take a look at this thread:
http://www.birdforum.net/showthread.php?t=191476&highlight=glasgow
It appears that the actual repairs are carried out by Glasgow Binocular Repairs on behalf of Alpha Digital Services. As they are roughly in your end of the country, it might be easier to deal with them directly. Apparently Doogie is very helpful.
Ron
http://www.birdforum.net/showthread.php?t=191476&highlight=glasgow
It appears that the actual repairs are carried out by Glasgow Binocular Repairs on behalf of Alpha Digital Services. As they are roughly in your end of the country, it might be easier to deal with them directly. Apparently Doogie is very helpful.
Ron
pinussen
Well-known member
Let us know how it turns out, I have the same (or similar) problem on my 824. Something (prism?) is loose but falls in the correct place if I have it with the focuser up, not too big a problem on a straight scope though. Have to give it a hit sometimes to get it correct, a bit nerve wrecking.
A complication is that the repair guy had to glue it shut the last time it was in, since the back was cracked and no spares are available
Not sure if it's openable again...
//Björn
A complication is that the repair guy had to glue it shut the last time it was in, since the back was cracked and no spares are available
Not sure if it's openable again...//Björn
Sounds like the prism is sliding in its plastic carrier. In theory it should be possible to glue it back. The scope body isn't glued up? If it isn't it unscrews at the rotating collar and the you access the prisms after undoing the upper body joint (3 screws to undo if I remember correctly), with a torx screwdriver.
I had the same problem with my 824.
I had the same problem with my 824.
NDhunter
Experienced observer
Let us know how it turns out, I have the same (or similar) problem on my 824. Something (prism?) is loose but falls in the correct place if I have it with the focuser up, not too big a problem on a straight scope though. Have to give it a hit sometimes to get it correct, a bit nerve wrecking.
A complication is that the repair guy had to glue it shut the last time it was in, since the back was cracked and no spares are available
//Björn
Bjorn:
Not sure about Kowa, but many of the top makes would just provide you
with a new scope to replace yours if not repairable. I do hope that is the
case here. Let us know how it turns out.
Jerry
pinussen
Well-known member
Hi
Not sure which is the rotating collar, where the mount is? That could save me I thought the scope was taken apart by undoing the sight/screw and the removing the back plare, ie the part that holds the ep, ca two inches long.
The sight (which doubles as a screw mount) was cracked so that was glued, not sure if he had to glue the whole backplate as well.
Btw, what kind of glue did you use? Dont want to fog any lenses with bad fumes...
This scope is ancient and comes from the us originaly, mayoayo, and had previous owners before him, so i doubt kowa would replace it it is a bit special though since its a black version.
//Björn
Not sure which is the rotating collar, where the mount is? That could save me
I thought the scope was taken apart by undoing the sight/screw and the removing the back plare, ie the part that holds the ep, ca two inches long. The sight (which doubles as a screw mount) was cracked so that was glued, not sure if he had to glue the whole backplate as well.
Btw, what kind of glue did you use? Dont want to fog any lenses with bad fumes...
This scope is ancient and comes from the us originaly, mayoayo, and had previous owners before him, so i doubt kowa would replace it
it is a bit special though since its a black version.//Björn
Yes the rotating collar is part the tripod mount the all black piece. I loosened the screw collar when I unscrewed or screwed up the scope body halves.
I forgot about the sighting screw. That needs to be undone as well as the three torx screws which you can access once you have the scope body in half.
I forgot about the sighting screw. That needs to be undone as well as the three torx screws which you can access once you have the scope body in half.
pinussen
Well-known member
I'm supposed to be able to take the scope in half? Didn't know that, it unscrews at the red ring? Tried to unscrew as hard as I can but it won't budge.
Looks like the repair guy put silicone there and in the back plate joint, not glue. Still, silicone is better than glue There is only glue on the actual sight mount it seems.
//Björn
Looks like the repair guy put silicone there and in the back plate joint, not glue. Still, silicone is better than glue
There is only glue on the actual sight mount it seems.//Björn
