Chassis Removal - Sharp 8C221 Service Manual

Static Convergence Adjustment
tions reverse to each other so as to make the same the
vertical lines of red beam and blue beam.
the created angle between them and fix them when the
vertical line and horizontal line for both red beam and
blue beam are the nearest.
until the red line and Blue line are focussed upon
one to another producing a mazenta line.
line onto the mazenta line.

CHASSIS REMOVAL

back cover from cabinet.
screws.
anode cap have been disconnection the PWB-B chassis
can be pulled out of the cabinet.
nection the PWB-E chassis can be pulled out of the
cabinet.
out of the all connections on PWB-A and pull out the
PICTURE TUBE ASSEMBLY REMOVAL AND REPLACE-
MENT
Remove PWB-B and PWB-E chassis from cabinet.
(Refer to CHASSIS REMOVAL procedure)
Disconnect picture tube coating earth tip from the PWB-
Unplug picture tube socket board (PWB-C) from picture
tube.
Spread a heavy pad on blanket on the wark surface to be
used to prevent scratching the cabinet and carefully
place cabinet face down on this protective covering.
Remove the four nuts that secure the picture tube
mounting tubs to the front frame.
Carefully grasp the picture tube assembly by its mounting
tubs and lift from the cabinet front.
The picture tube must be handled with care.
Remove the picture tube dag ground harness assembly.
Carefully seat the new picture tube assembly in place on
the cabinet front and install all hardware in reverse other
sequence.
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