JVC 340 SC, 330 AC Power Terminal Block Ground Main AC Circuit Breaker Mounting, screws under lip

Chapter 4—Maintenance

AC Power

Terminal Block

Ground

Main AC Circuit

Breaker

Mounting

screws

(under lip)

Figure 4-7System Power Supply (right side of projector)

7.Remove the grounding cable from the right side of the power supply (see Figure 4-7).

8.Loosen and release the two (2) captive screws at the base of the power supply, located on the right side below the AC terminal block (under the mounting bracket–Figure4-7).

9.Move to the left side of the power supply and cut the tie wrap securing the HVPS anode leads to the power supply (see Figure 4-8).

10.Remove the screw securing the wire bundle clamp to the power supply (Figure 4-3).

11.Unplug the three (3) system power supply connectors (Figure 4-3). Do not pull on the connector wires-unplug from power supply by squeezing the latching tabs and pulling on the connector shell or housing.

12.Loosen and release the two (2) captive screws at the base of the power supply (Figure 4-3). Ensure the nylon spacers on the captive screws do not get lost.

Be sure to replace them between the power supply and the support lip when reinstalling the power supply.

13.Lift the power supply off from the projector.

14.Perform the above steps in the reverse order to replace the System Power Supply. Be sure that all connectors are firmly seated and locked and all pins are mating. When reinstalling the Arc Lamp cables to the DC terminal block (Step 4 above), a torque wrench should be used. The Arc Lamp connections to the top of the SPS should be torqued to 25-30 in. lbs.

4-12 Model 330. 340SC, 370SC Service Manual