Nidec Automatic Chart Projector CP-690

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

All connectors from the BA01 board removed

1 chip CPU pulled out from the BA01 board and installed into the new board

NOTE! Be careful of the orientation of the CPU.

BS3 × 10ZnC (n=2) fixing the bridge diode (D1) and regulator IC (IC2) unscrewed

BA01 board removed while holding the tip of the four spacers with long nose pliers and new circuit board mounted

New bridge diode (D1) and regulator IC (IC2) fixed into the radiator plate (M032) with the screws and each terminal soldered onto the BA01 board

Removed parts assembled in reverse order

Sign off on the BA01 board replacement

Warning: This procedure requires trained personnel with PPE!

Top and front cover ASSYs removed?

Objective holder rotated counterclockwise and removed from the lens barrel?

Surface of the lens of the objective holder cleaned?

For stubborn dirt, use a swab whose tip is wrapped in lens cleaning paper and is dampened with the liquid mixture.

Surface of the lenses indicated by arrows in the diagram cleaned?

Parts assembled in reverse order?

Adjustment of the installed position of the main body and the focus performed according to the operator’s manual?

Sign off on the Holder ASSY Cleaning

Warning: Do not conduct work until the device cool down.

Top and front cover ASSYs removed?

J2 connector and EA14 cable connector on the BA01 board disconnected?

BA14 board removed and replaced with new one?

New board pushed into the spacers properly?

Removed parts assembled in reverse order?

Sign off on the BA14 board replacement

Warning: Once the lamp goes on, its surroundings become hot. Do not touch parts near the lamp until they cool down.

Remove the top and bottom cover ASSYs

Remove the cable of the LED ASSY from the BA14 board

Loosen TH3 × 4 (n=3) in order to remove the LED ASSY

Attach the new LED ASSY under the condition that the cable of the LED ASSY is upside

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

Loosen TH3 × 4 (n=3) to remove the C lens ASSY

Attach the new C lens ASSY under the condition that the two fix screws, which are on the side of the C lens ASSY, are upside

Assemble the top and bottom cover ASSYs after “6.4 Adjustment of the fixed mask position” and Adjustment of the lamp filament position are performed