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Pentax MZ-S Mirror Drive Lever Replacement

必要な工具と部品

  1. Pentax MZ-S Mirror Drive Lever Replacement, Remove film door: 手順 1、 1の画像 1
    • Push down the latch to release the film door.

  2. Pentax MZ-S Mirror Drive Lever Replacement, Remove top cover screws: 手順 2、 3の画像 1 Pentax MZ-S Mirror Drive Lever Replacement, Remove top cover screws: 手順 2、 3の画像 2 Pentax MZ-S Mirror Drive Lever Replacement, Remove top cover screws: 手順 2、 3の画像 3
    • Remove two 7.5 mm #00 screws.

    • Remove one 9.0 mm #00 screw.

    • Remove one 13.5 mm #00 screw from inside the battery compartment.

  3. Pentax MZ-S Mirror Drive Lever Replacement, Remove top cover screws: 手順 3、 3の画像 1 Pentax MZ-S Mirror Drive Lever Replacement, Remove top cover screws: 手順 3、 3の画像 2 Pentax MZ-S Mirror Drive Lever Replacement, Remove top cover screws: 手順 3、 3の画像 3
    • Push the button to pop up the flash.

    • Remove one 3.5 mm #00 screw.

    • Remove one 5.5 mm #00 screw.

  4. Pentax MZ-S Mirror Drive Lever Replacement, Lift top cover: 手順 4、 1の画像 1
    • Carefully lift the top cover away from the body to access wired connections.

    • The top cover is still connected in several locations.

  5. Pentax MZ-S Mirror Drive Lever Replacement, Access flash connections: 手順 5、 2の画像 1 Pentax MZ-S Mirror Drive Lever Replacement, Access flash connections: 手順 5、 2の画像 2
    • Peel back the corner of the rubber grip.

    • Remove the small plastic cover.

    • Be careful not to short the wires before the flash capacitors have been properly discharged.

  6. Pentax MZ-S Mirror Drive Lever Replacement, Discharge flash capacitors: 手順 6、 1の画像 1
    • Use a 1kΩ-10kΩ high power resistor to discharge the capacitor. Place the resistor between the blue wire, exposed in the previous step, and ground.

    • The flash capacitors store energy at a very high voltage. Failing to discharge the capacitors properly could result in personal injury and/or damage to the camera.

  7. Pentax MZ-S Mirror Drive Lever Replacement, Disconnect right flex cable: 手順 7、 1の画像 1
    • Carefully lift the sides of the white latch.

    • Hold the flex PCB on the camera body in place as you lift to prevent damaging the flex.

  8. Pentax MZ-S Mirror Drive Lever Replacement, Disconnect left flex cable: 手順 8、 1の画像 1
    • Desolder the red wire.

    • Carefully lift the sides of the white latch.

    • Hold the flex PCB on the camera body in place as you lift to prevent damaging the flex.

  9. Pentax MZ-S Mirror Drive Lever Replacement, Desolder flash connections: 手順 9、 2の画像 1 Pentax MZ-S Mirror Drive Lever Replacement, Desolder flash connections: 手順 9、 2の画像 2
    • Desolder blue, black, brown and green wires.

    • Remove the loose shim washer if present.

  10. Pentax MZ-S Mirror Drive Lever Replacement, Desolder the flash flex cable: 手順 10、 2の画像 1 Pentax MZ-S Mirror Drive Lever Replacement, Desolder the flash flex cable: 手順 10、 2の画像 2
    • Remove the piece of cellophane tape covering the flex connections.

    • Desolder flex connetions.

  11. Pentax MZ-S Mirror Drive Lever Replacement, Remove bottom cover: 手順 11、 3の画像 1 Pentax MZ-S Mirror Drive Lever Replacement, Remove bottom cover: 手順 11、 3の画像 2 Pentax MZ-S Mirror Drive Lever Replacement, Remove bottom cover: 手順 11、 3の画像 3
    • Use isopropyl alcohol to soften the adhesive under the country plate and remove.

    • Remove one 5mm #00 screw.

    • Remove one 7.5mm #00 screw.

    • Remove two 4.5mm #00 screws.

    • Remove one 5.5mm #00 screw.

    • Remove the plastic frame around the accessory grip contacts.

  12. Pentax MZ-S Mirror Drive Lever Replacement, Remove front left cover: 手順 12、 1の画像 1
    • Remove one 4.0 mm #00 screw.

    • Remove left cover.

  13. Pentax MZ-S Mirror Drive Lever Replacement, Remove front cover: 手順 13、 1の画像 1
    • Remove front cover.

  14. Pentax MZ-S Mirror Drive Lever Replacement, Unscrew front right cover: 手順 14、 3の画像 1 Pentax MZ-S Mirror Drive Lever Replacement, Unscrew front right cover: 手順 14、 3の画像 2 Pentax MZ-S Mirror Drive Lever Replacement, Unscrew front right cover: 手順 14、 3の画像 3
    • Remove one 6.0 mm #00 screw.

    • Remove two 3.5 mm #00 screws.

    • Remove one 5.0 mm #00 screw.

    • Remove the strap lug.

  15. Pentax MZ-S Mirror Drive Lever Replacement, Remove the front right cover: 手順 15、 1の画像 1
    • Carefully pull the right panel away from the body. It is still attached.

    • Desolder the flex connections.

  16. Pentax MZ-S Mirror Drive Lever Replacement, Remove bottom plate: 手順 16、 3の画像 1 Pentax MZ-S Mirror Drive Lever Replacement, Remove bottom plate: 手順 16、 3の画像 2 Pentax MZ-S Mirror Drive Lever Replacement, Remove bottom plate: 手順 16、 3の画像 3
    • Remove the protective mask around the accessory grip contacts.

    • Lift the flex contacts free of their retaining posts. Use isopropyl alcohol to soften any glue or tape that is present.

    • Remove four 4.0 mm #00 screws.

    • Remove four 4.0 mm #00 screws.

  17. Pentax MZ-S Mirror Drive Lever Replacement, Desolder speaker: 手順 17、 1の画像 1
    • Desolder the black and red wires for the speaker.

  18. Pentax MZ-S Mirror Drive Lever Replacement, Desolder connections to bottom flex circuit: 手順 18、 3の画像 1 Pentax MZ-S Mirror Drive Lever Replacement, Desolder connections to bottom flex circuit: 手順 18、 3の画像 2 Pentax MZ-S Mirror Drive Lever Replacement, Desolder connections to bottom flex circuit: 手順 18、 3の画像 3
    • Desolder the white and pink wires.

    • Desolder the red, black and gray wires.

    • Desolder the red, black and orange wires.

    • Desolder the white and blue wires.

    • Carefully peal the tape away and detach the red, black, white and blue wires from the glue. Use isopropyl alcohol to soften the glue if necessary.

    • Desolder the flex connection.

    • Desolder the flex connection.

  19. Pentax MZ-S Mirror Drive Lever Replacement, Desolder connections to top flex circuit: 手順 19、 2の画像 1 Pentax MZ-S Mirror Drive Lever Replacement, Desolder connections to top flex circuit: 手順 19、 2の画像 2
    • Desolder red, black, gray and orange wires.

    • Desolder flex contacts.

    • Disconnect flex connector.

  20. Pentax MZ-S Mirror Drive Lever Replacement, Desolder connections to top flex circuit: 手順 20、 2の画像 1 Pentax MZ-S Mirror Drive Lever Replacement, Desolder connections to top flex circuit: 手順 20、 2の画像 2
    • Desolder black wire.

    • Desolder battery contact tab.

    • Desolder flex contacts.

    • Remove one 4.0 mm #00 screw.

  21. Pentax MZ-S Mirror Drive Lever Replacement, Desolder flex connection above the lens mount: 手順 21、 2の画像 1 Pentax MZ-S Mirror Drive Lever Replacement, Desolder flex connection above the lens mount: 手順 21、 2の画像 2
    • Desolder flex connection and remove from retention posts. Use isopropyl alcohol to soften the glue if necessary.

    • Carefully peal the flex cable from the surface of the flash capacitor. Use isopropyl alcohol to soften the glue if necessary.

  22. Pentax MZ-S Mirror Drive Lever Replacement, Remove eye piece assembly: 手順 22、 2の画像 1 Pentax MZ-S Mirror Drive Lever Replacement, Remove eye piece assembly: 手順 22、 2の画像 2
    • Remove two 5.0 mm #00 screws.

    • Remove the eye piece.

  23. Pentax MZ-S Mirror Drive Lever Replacement, Remove lens release switch: 手順 23、 2の画像 1 Pentax MZ-S Mirror Drive Lever Replacement, Remove lens release switch: 手順 23、 2の画像 2
    • Remove one #00 screw.

    • Reassembly Note: Ensure that the lower contact catches on the plastic nub and that the contact is open when the lens release button is not pressed.

  24. Pentax MZ-S Mirror Drive Lever Replacement, Flip the mirror up: 手順 24、 2の画像 1 Pentax MZ-S Mirror Drive Lever Replacement, Flip the mirror up: 手順 24、 2の画像 2
    • Apply a low DC voltage (3-6 V) to the mirror motor to move the mirror to the upper position.

    • The mirror box will not easily release from the camera body while the mirror is in the lower/charged position.

  25. Pentax MZ-S Mirror Drive Lever Replacement, Unscrew the mirror box: 手順 25、 2の画像 1 Pentax MZ-S Mirror Drive Lever Replacement, Unscrew the mirror box: 手順 25、 2の画像 2
    • Remove two 6.5 mm #0 screws.

    • Remove one 8.0 mm #0 screw.

    • Remove one 4.0 mm #00 screw.

    • Remove one 4.5 mm #00 screw.

    • Remove two 2.5 mm #00 screws.

    • There may be a shim washer here. Remove if loose.

    • Remove one 4.0 mm #00 shoulder screw.

  26. Pentax MZ-S Mirror Drive Lever Replacement, Remove the mirror box: 手順 26、 2の画像 1 Pentax MZ-S Mirror Drive Lever Replacement, Remove the mirror box: 手順 26、 2の画像 2
    • Push the mirror box up to free it from the bottom plate.

    • Lift the left side of the mirror box and rotate it up and out of the camera body.

    • Be gentle. Keep an eye out for any snagged flex cables or wires. The right side of the mirror box is still connected to the camera body and it cannot be completely removed.

    • Check for shim washers at the mount locations. Note location and remove if loose.

  27. Pentax MZ-S Mirror Drive Lever Replacement, Remove the mirror motor plate: 手順 27、 1の画像 1
    • Desolder the black wire.

    • Remove one 3.0 mm #00 screw securing the mount LED.

    • Remove five 3.5 mm #00 screws.

  28. Pentax MZ-S Mirror Drive Lever Replacement, Remove mirror drive lever: 手順 28、 2の画像 1 Pentax MZ-S Mirror Drive Lever Replacement, Remove mirror drive lever: 手順 28、 2の画像 2
    • Remove two drive gears from the mirror box.

    • Remove mirror drive lever. Place a finger over the spring to prevent it from shooting away.

  29. Pentax MZ-S Mirror Drive Lever Replacement, Install new mirror drive lever: 手順 29、 1の画像 1
    • Transfer the two springs from the old drive lever to the new drive lever.

    • Install the new drive lever.

    • Check that all the bias springs are correctly tensioned against the indicated posts.

  30. Pentax MZ-S Mirror Drive Lever Replacement, Install drive gears: 手順 30、 1の画像 1
    • Ensure that the indicated holes are aligned when installing the drive gears.

  31. Pentax MZ-S Mirror Drive Lever Replacement, Prepare mirror motor plate for install: 手順 31、 2の画像 1 Pentax MZ-S Mirror Drive Lever Replacement, Prepare mirror motor plate for install: 手順 31、 2の画像 2
    • Slide the aperture actuator to the left.

    • Pinch the small lever downward and let it snap back into place.

    • The aperture actuator should be held in place on the left end of its travel if done correctly.

  32. Pentax MZ-S Mirror Drive Lever Replacement, Prepare mirror box assembly for install: 手順 32、 2の画像 1 Pentax MZ-S Mirror Drive Lever Replacement, Prepare mirror box assembly for install: 手順 32、 2の画像 2
    • Install mirror motor plate.

    • Turn the black gear downward until the mirror moves to the upper position.

    • Continue turning the black gear until this hole appears in the opening and the shutter charge lever moves to the right.

    • Make sure all wires and flex cables are in their proper place before beginning the install. Monitor carefully to avoid pinching things in the wrong place.

    • Apply a low DC voltage (3-6 V) to the mirror motor to check the operation of the mirror box. Normal movement in the shutter blades, aperture actuator and mirror should be observable.

終わりに

To reassemble your device, follow these instructions in reverse order. Be careful to route wires and flex cables in the way that they were originally assembled.

作成者

1人の作成者と共同作成されました。

Sam Gustafson

メンバー登録日: 09/01/22

3,233 ポイント

13のガイドは作成済み

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