Nidec Nidec Automatic Chart Projector CP-690 CP-690

Top and front cover ASSYs removed

Connector disconnected from J7 on the BA01 board

BA02 board replaced with a new one

Parts assembled in reverse order

Sign off on the BA02 board replacement

Remove the top and bottom cover ASSYs

Disconnect the connector from J3 on the BA01 board

Cut the tie wrap (T18R) which ties the cables of the mask motor

Unscrew BS3 × 6znc to remove the VA mask (M029)

Unscrew SB3 × 6 (n=2) to remove the illumination ASSY (1200)

Unscrew BS3 × 6znc (n=2) to remove the mask sensor and sensor fitting plate (M009)

Unscrew SB4 × 10 (n=4), SW4 (n=4) and mask sensor and sensor fitting plate M009), PW4 (n=4) to remove the mask ASSY

Loosen HH4 × 6 (n=4) of the chart disk retainer, pull out the chart ASSY from the shaft of the chart motor by sliding the chart ASSY and then insert the new chart ASSY

Remove the top cover ASSY and disk cover (M030)

Blow off the dust on the disks with a blower

For stubborn dirt on the disks, wipe it with a swab whose tip is wrapped in lens cleaning paper and is dampened with the liquid mixture

Clean the opposite sides of the chart and mask disks by rotating both disks by hand and wiping the chart disk through the open mask

If it is impossible to clean the opposite sides of the chart and mask disks, remove the chart or mask ASSY

Wipe the disks so as not to leave wipe marks

When wiping the mask disk, ensure not to leave lint on the disk

When cleaning the filter bond with the chart, wipe only its surface lightly. Do not touch the adhesive

Assemble the removed parts in reverse order

Top and bottom cover ASSYs removed

HH3 × 5 loosened and SB3 × 6, SW3 and 3PW3 removed

Holder ASSY replaced with a new one

Parts assembled in reverse order

Position of the main body and the focus adjusted according to the operator’s manual

Sign off on the Holder ASSY Replacement

NOTE! The parts around the lamp become hot. Do not touch the parts directly by hand.

Turn the power switch ON, project the chart on the screen and adjust the focus.

Turn the power switch OFF, remove the top cover ASSY and disk cover (M030).

Disconnect the connectors from J3 and J5 on the BA01 board.

Unscrew BS3 × 6ZnC to remove the VA mask (M029).

Turn the power switch ON again, rotate the chart and mask disks by hand to check the position (tilt) of the fixed mask.

Loosen HH3 × 4 (n=2) to rotate the fixed mask by hand. Adjust it to satisfy the following conditions.

Tighten the loosened screws while pushing the fixed mask into the lamp side.

Assemble the removed parts in reverse order.