JVC 340 SC, 370 SC service manual Model 330 Ignitor and Arc Lamp Assembly P/N 900611S Removal

Chapter 4—Maintenance

NOTE: This filter can also be removed, while leaving the rear cover in place, by removing the two screws at the top of the side panel where the filter is located. Slide the panel up and out.

4.4 Arc Lamp Assembly

The Arc Lamp Assembly, which includes the Ignitor, is located in the middle section of the projector. Separate instructions for both the Model 330 and the Model 340SC and 370SC arc lamp assembly removal follow.

WARNING!!! High Voltage points of up to 40,000 volts are exposed inside the projector covers. It takes at least a minute to bleed off high voltage even after the unit has been turned off.

Model 330 Ignitor and Arc Lamp Assembly (P/N 900611S) Removal

To remove the Ignitor Assembly or Xenon Arc Lamp from a Model 330 Projector:

Refer to Photo 4-1 for right and left orientation and to perform the following procedure. Label any connectors prior to removing to ensure they are reconnected correctly.

1.Unplug the projector.

2.Remove the front and rear projector covers (see Section 4.2).

3.Disconnect and label the four (4) high voltage cables that are connected to the Ignitor.

NOTE: If the small, black wire on J503 (where the black negative cable connects from the Ignitor to the System Power Supply) is disconnected in order to remove the Ignitor negative cable, be sure to reconnect it when reinstalling the Ignitor. This wire carries the boost voltage that keys the Ignitor on.

CAUTION! Do not disconnect the cable from the arc lamp end! If returning the arc lamp, leave both cables attached to avoid misaligning the Arc Lamp interior components.

4.Remove the three (3) ground straps from the Ignitor and Arc Lamp. Leave them connected to the projector.

4-6 Model 330. 340SC, 370SC Service Manual