JVC 330 SCB Socket Battery Replacement, Lens Throw, Lens Part Number or Designation, Ratio, Green

			Chapter 4—Maintenance
Table 4-2Lens Replacement
Lens Throw	Lens Part Number or Designation
Ratio	Red	Green		Blue
1.5:1	101241	101241		101715
3:1	900609-3	900609-2		900609-1
5:1	101239	101239		101239
7:1	101240	101240		101240

NOTE: More details on lens options, converters and other lens information can be found in the appropriate model Operator's Manual.

4.14 (SCB) Socket Battery Replacement

As indicated in the troubleshooting table (under “Picture-Various Problems”, weak backup RAM socket batteries in the SCB can cause lost data when the projector is turned off and back on again. All four (4) of these batteries should be replaced at the same time if this condition occurs.

CAUTION! Never place the socket battery on a metal

surface! The positive and negative terminals could short out and destroy

the battery!

WARNING!!! Danger of explosion if this battery is incorrectly replaced! When replacing the Lithium batteries, be sure they are ilnstalled with the correct polarity. If installed backwards they could explode! Replace only with the same or equivalent type recommended by the manufacturer. Dispose of the old Lithium batteries in accordance with local safety codes. Contact your local authorities for proper disposal procedure.

To replace the SCB socket batteries:

CAUTION! When replacing SRAM all channel data will be lost. All channel data must be downloaded.

1.Download all channel data on the System Controller.

2.Remove the System Controller Board PCB (refer to Section 4.11).

Model 330, 340SC, and 370SC Service Manual 4-25