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Pentax ZX-5n Shutter Speed Dial Replacement

What you need

  1. Pentax ZX-5n Shutter Speed Dial Replacement, Remove back cover: step 1, image 1 of 1

    • Push down on the screw to depress the spring loaded hinge and release the door.

    Edit

  2. Pentax ZX-5n Shutter Speed Dial Replacement, Remove bottom cover: step 2, image 1 of 1

    • Remove six 5.3 mm #00 screws.

    • Remove one 3.4 mm #00 screw.

    • The short screw has a machine thread and screws into the plate underneath. The rest screw into the plastic body.

    Edit

  3. Pentax ZX-5n Shutter Speed Dial Replacement, Remove left front cover: step 3, image 1 of 1

    • Remove three 5.3 mm #00 screws (the bottom-most screw is not always present).

    • Remove one 7.3 mm #00 screw.

    • Remove the remote trigger cover.

    Edit

  4. Pentax ZX-5n Shutter Speed Dial Replacement, Remove front cover: step 4, image 1 of 2 Pentax ZX-5n Shutter Speed Dial Replacement, Remove front cover: step 4, image 2 of 2

    • Remove one 3.4 mm #00 screw.

    • Remove two 5.3 mm #00 screw.

    • Gently lift up on the flash housing to help remove the cover if necessary.

    Edit

  5. Pentax ZX-5n Shutter Speed Dial Replacement, Remove right front cover: step 5, image 1 of 1

    • Remove two 3.9 mm #00 screws.

    Edit

  6. Pentax ZX-5n Shutter Speed Dial Replacement, Remove eye cup: step 6, image 1 of 1

    • Slide the eye cup up and off to access the screws underneath.

    Edit

  7. Pentax ZX-5n Shutter Speed Dial Replacement, Unscrew top cover: step 7, image 1 of 3 Pentax ZX-5n Shutter Speed Dial Replacement, Unscrew top cover: step 7, image 2 of 3 Pentax ZX-5n Shutter Speed Dial Replacement, Unscrew top cover: step 7, image 3 of 3

    • Remove two 5.3 mm #00 screws by the eyepiece.

    • Remove one 6.8 mm #00 screw in the battery compartment.

    • Remove one 7.0 mm #00 screw near the take up spool.

    Edit

  9. Pentax ZX-5n Shutter Speed Dial Replacement, Lift top cover: step 8, image 1 of 1

    • Lift the cover so it is just free of the body. It is still attached by several wires.

    Edit

  10. Pentax ZX-5n Shutter Speed Dial Replacement, Discharge flash capacitors: step 9, image 1 of 1

    • Use a 1kΩ-10kΩ 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.

    Edit

  11. Pentax ZX-5n Shutter Speed Dial Replacement, Unsolder flash connections: step 10, image 1 of 1

    • Unsolder one green wire.

    • Unsolder one blue wire.

    • Unsolder one brown wire.

    • Unsolder one black wire.

    Edit

  12. Pentax ZX-5n Shutter Speed Dial Replacement, Unsolder remaining connections: step 11, image 1 of 3 Pentax ZX-5n Shutter Speed Dial Replacement, Unsolder remaining connections: step 11, image 2 of 3 Pentax ZX-5n Shutter Speed Dial Replacement, Unsolder remaining connections: step 11, image 3 of 3

    • Unsolder one black wire.

    • Pull black wire out from its routed location.

    • Unsolder flex connector

    • Be careful not to overheat the flex circuit. Work in short durations. Allow for cool downs in between if necessary.

    • Some repairs can be performed with the top cover still connected but the flex connection is fragile and easily damaged.

    Edit

  13. Pentax ZX-5n Shutter Speed Dial Replacement, Set shutter speed dial: step 12, image 1 of 1

    • Set the shutter speed dial to 'A'

    Edit

  14. Pentax ZX-5n Shutter Speed Dial Replacement, Remove screw: step 13, image 1 of 1

    • Remove one 4.3 mm #00 screw.

    • Be careful not to damage the feeler contacts for the metering switch throughout the repair. There are delicate and easily bent.

    Edit

  15. Pentax ZX-5n Shutter Speed Dial Replacement, Remove contact PCB: step 14, image 1 of 2 Pentax ZX-5n Shutter Speed Dial Replacement, Remove contact PCB: step 14, image 2 of 2

    • Remove the contact PCB.

    • There is a metal plate underneath that may stick to the PCB.

    Edit

  16. Pentax ZX-5n Shutter Speed Dial Replacement, Remove dial: step 15, image 1 of 1

    • Slide the exposure compensation dial out of the top cover.

    • If the dial was not set to 'A' in Step 10, the knob will not slide out. Turning the knob at this stage could damage the detent spring.

    Edit

  17. Pentax ZX-5n Shutter Speed Dial Replacement, Remove detent components: step 16, image 1 of 2 Pentax ZX-5n Shutter Speed Dial Replacement, Remove detent components: step 16, image 2 of 2

    • Remove the ball bearing from the inside of the dial.

    • Remove the detent spring from the top cover.

    Edit

  18. Pentax ZX-5n Shutter Speed Dial Replacement, Remove lock button: step 17, image 1 of 2 Pentax ZX-5n Shutter Speed Dial Replacement, Remove lock button: step 17, image 2 of 2
    Tool used on this step:
    Tweezers
    $4.99
    Buy

    • Use tweezers to release the snaps on the lock button.

    • Remove the lock button from the top of the dial.

    Edit

  19. Pentax ZX-5n Shutter Speed Dial Replacement, Remove inner components: step 18, image 1 of 2 Pentax ZX-5n Shutter Speed Dial Replacement, Remove inner components: step 18, image 2 of 2

    • Remove lock actuator.

    • Remove lock spring.

    Edit

  20. Pentax ZX-5n Shutter Speed Dial Replacement, Reassembly notes: step 19, image 1 of 1

    • Use tape to hold components in place when installing the dial.

    Edit
Conclusion

To reassemble your device, follow these instructions in reverse order.

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Author

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Sam Gustafson

Member since: 09/01/22

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