Keystone 8mm projector user manual - Office Equipment & Supplies

https://www.google.com/search?q=user+manual+for+an+Cinerex+Dual+8mm+Projector&rlz=1C1OKWM_enUS817US817&oq=user+manual+for+an+Cinerex+Dual+8mm+Projector&aqs=chrome..69i57j33i299.567j0j4&sourceid=chrome&ie=UTF-8

David,

I'm not sure if a "repair manual" was ever printed? I did find mentions of the "User Manual" but that it!

Here is a VERY interesting site for you!

8mm FILM PROJECTOR REPAIR Super 8mm MOVIE PROJECTOR REPAIR RESTORATION...

See what you think!

Anthony

I strongly suspect a broken belt the covers need to come off.

Manual: http://www.mitsubishi-presentations.com/wp-content/files_mf/mitsubishi_manual_xd250ust.pdf

Installation>Wall Screen>Keystone

The automatic keystone adjustment may not be carried out correctly

because of the ambient temperature and the installation

conditions of the projector and the screen. In such cases, correct

the keystone manually.

• When the projector is projecting images where acceleration is

present, such as in a vehicle and aircraft, the automatic keystone

adjustment may not function correctly. In such a case, set AUTO

KEYSTONE in the INSTALLATION menu to OFF and correct the

keystone manually.

• You can correct the vertical keystones. However, their adjustment
ranges are limited in such correction.

When the keystone adjustment is carried out, the adjustment

value is indicated. Note that this value doesn't mean a projection

angle.

• The allowable range of the adjustment value in the keystone

adjustment varies depending on the installation conditions.

• When the keystone adjustment takes effect, the resolution

decreases. In addition, stripes may appear or straight lines may

bend in images with complicated patterns. They are not due to

product malfunctions.

• Noise may appear on the screen during the keystone adjustment

because of the type of the video signal being projected and the

setting values of the keystone adjustment. In such cases, set the

keystone adjustment values in the range where the image is displayed

without noise.

• When the keystone adjustment is carried out, the image may not
be displayed correctly because of the type of input signal.

Try downloading it from internet.

you might find one here
http://office.manualsonline.com/manuals/mfg/keystone/keystone_projector_product_list.html

http://cgi.ebay.com/Keystone-K-98-K-98Z-8mm-Automatic-Projector-ManualCOPY-/250402815400?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item3a4d2bbda8

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

Re Keystone 68 projectors:
I join the growing throngs of folks who wish to view their family archives in 8 mm before submitting the reels to the digitals for conversion. Doesn't anyone have an answer for us? I continue to search, if I find, I'll post.
Fauvette