MP8 CRT Installation
Page 1
Overview
This procedure will allow a qualified Madrigal Imaging dealer to install a CRT into a
MP8. Please read and understand all instructions outlined in this procedure before
attempting the installation.
Should you have questions about this procedure please contact the Madrigal Technical
Services Department.
Phone
860-346-0896
Fax
860-347-6251
Precautions
This CRT assembly replaces similar Panasonic 8” CRTs.
•
Check the original CRTs are 8” Panasonic.
•
Do not use to replace 9” CRTs (MP-9).
Check that the projector is
TURNED OFF AND UNPLUGGED
before performing this
procedure.
Projection CRTs contain a vacuum and pose a threat of flying glass if dropped. The use
of
PROTECTIVE EYEWEAR
is highly recommended when handling a CRT.
During the removal and installation of the CRT, it is important to insure that
NO
MAGNETIC MATERIALS
are brought close to the focus coil or permanent field
distortion will occur.
To reduce the chance of a
HIGH VOLTAGE DISCHARGE,
discharge the anode lead
(red high voltage lead) of the CRT to Chassis ground upon removal.
Components
The service CRT provided comes complete with factory-aligned components.
•
Deflection Yoke
•
Convergence Yoke
•
Electromagnetic Focus Coil
•
Stigmator / Flair Rings
All components are clamped to the CRT and glued into place except for the deflection
yoke. The deflection yoke is left free for tilt adjustment.
Install the service CRT with the above components; do not attempt to remove or re-use
these components, as the physical alignment is critical to the performance of the
projector.
