Hughes JVC 200, Service Manual

Page: 112 / 140

Chapter 4---Maintenance (Removal/Replacement)
7. Place the Green CRT Assembly in a safe location on or
against one of the other CRT Assemblies.
8. Disconnect the Red and Blue CRT Socket Connectors
and gently lay them on the top of the Video Amplifier
Board.
9. Disconnect the 3 connectors (push in slightly, squeeze
the tabs, and pull out), J67, J68, and J69 from the Video
Amplifier PCB. Move the cables out of the way.
Figure 4-9. Video Amplifier PCB showing breakaway CRT Socket
Connectors.
10. Disconnect the 3 Focus cables that run from the CRT
Socket Connectors to the Focus connectors on the
HVPS.
NOTE: Observe that each of the 3 Focus cables
(large, red wires that run from each CRT Socket
Connector to the Focus connectors on the HVPS) is
joined near the CRT by a coupler plug and jack.
Disconnect (and label) the focus cables at these couplers.
11. Loosen the 6 pozidrive screws that secure the Video
Amplifier PCB to the projector frame.
12. Make sure everything is out of the way, then slide the
Video Amplifier PCB toward the left so the mounting
screws will clear the access holes and remove the board
from the projector.
13. Reinstall in the reverse order from above. NOTE: The
Video Amplifier PCB is shipped with the 3 CRT Socket
Connectors attached at the end in a “breakaway”
arrangement (
Figure 4-9 ). Use a pair of diagonal cutters
Model 200 Service Manual 4-15