![](/images/new-backgrounds/1269202/269202207x1.webp)
Chapter 5---Electronics
5.Remove the green CRT by loosening the green CRT Holder Ring (see Figure
NOTE: The holder ring should only be
CAUTION! The connections at the rear of the CRT are very fragile and can be damaged easily. Use extreme care when removing the CRT/Yoke Assembly to prevent damage to any CRT connections.
6.Carefully remove the Green CRT/Yoke Assembly by sliding it backward and upward as far as possible before disconnecting the Green CRT Socket Connector from the CRT neck. Use care to avoid bumping the CRT while removing it from the projector, to avoid damaging it. Also, be careful not to pull any of the wires that connect from the CRT Socket Connector to the Video Amplifier to avoid damaging them.
7.Move the Green CRT/Yoke Assembly away from the rear of the projector, then disconnect the Green CRT Socket Connector and the ground wire between the CRT/Yoke Assembly and the CRT Socket Connector.
NOTE: It may be helpful to perform this step with a
8.Carefully lay the Green CRT Socket Connector on the top of the Video Amplifier PCB.
9.Place the Green CRT Assembly in a safe location on or against one of the other CRT Assemblies.
10.Disconnect the Red and Blue CRT Socket Connectors and carefully lay them on the top of the Video Amplifier PCB.
11.Disconnect the three connectors (push in slightly, squeeze the tabs, and pull out), J67, J68, and J69 from the Video Amplifier PCB (see Figure
Model 250 Service Manual |