JVC Model 200 service manual Arc Lamp Power Supply, High Voltage Power Supply

Chapter 4---Maintenance (Removal/Replacement)

4.5 Arc Lamp Power Supply

To remove the Arc Lamp Power Supply:

1.Remove the front cover (Section 4.2).

2.Remove the lower-right-front-side panel by removing the 5 pozidrive screws securing it.

3.Remove the 2 pozidrive screws from the bottom of the EMI shield and slide it out of the way to the left.

4.Remove and label the cables from the DC OUTPUT terminal, J74.

5.Disconnect J71 (AC Input).

6.Disconnect J72 (SIGNAL CABLE).

7.Remove J73.

8.Remove the 2 screws at the bottom of the ALPS and carefully slide it out of the projector.

9.Replace the Arc Lamp Power Supply in reverse order from above. NOTE: When replacing the cables on the

± terminals on J74, a mechanical pickup tool is very useful to start the screws.

10.Perform the Arc Lamp Focus, Alignment, and Current Setting procedures as shown in Section 3.1 and 3.2.

4.6 Low Voltage Power Supply

To remove the Low Voltage Power Supply:

1.Remove the front cover.

2.Remove the lower-right-side panel by removing the 5 pozidrive screws securing it.

3.Remove the 2 pozidrive screws securing the EMI Shield. Slide the shield to the left and remove it.

4.Remove J76 (DC Output) and J75 (AC Input) from the left side of the Low Voltage Power Supply. NOTE: These connectors may be difficult to remove and it may be necessary to angle the LVPS partly out of the chassis in order to get a firmer grip on the connectors.

5.Remove the 2 screws on the bottom side of the LVPS and carefully slide it out of the projector.

6.Reinstall the LVPS in reverse order. After the LVPS is installed, recheck Timing, Geometry, Electronic Focus, ILA® Bias/Sensitivity, Convergence, G2, and Shading.

4.7High Voltage Power Supply

To remove the High Voltage Power Supply:

4-8 Model 200 Service Manual