Date: 06/02/98
R9000901
R9000908
GRAPHICS
Replacement of a picture tube
6
808S
Removing the picture tube from its frame
How to remove the
picture tube out of its
frame
The picture tube unit is fixed to the main frame in two ways:
- Mechanical: two long bolts secure the position of the picture tube support in the
frame.
- Electrical: the Units on the picture tube are electrical connected to the main frame.
To remove the unit, first disconnect the picture tube units electrical from the main
frame and then remove the bolts holding the picture tube support to the main frame.
Necessary tool
Screwdriver 5mm
The following units have to be disconnected from the main frame:
- deflection unit connection
- focus unit connection
- ground connection
- video driver unit
- EHT lead
How to disconnect the
picture tube units
electrical from the main
frame
How to disconnect the
video driver unit
Disconnect the units as described below:
Step
Action
1
Pull out the connector on top of the unit.
2
Pull out on main frame the wire connector.
3
Disconnect the two ground connectors
4
Loosen the 2 screws holding driver module to support brace.
5
Carefully pull off the Video Driver Unit from the picture tube socket.
6
Lay down the unit, still connected to the frame with the focus wire, out of
the area of the picture tube to be removed.
1
2
3
4
Video Driver
Unit
to be continued on next page