Feature #1089

Repair D3

Added by tin over 5 years ago. Updated about 4 years ago.

Status:ClosedStart date:06/05/2014
Priority:HighDue date:11/05/2014
Assignee:tin% Done:

90%

Category:-Estimated time:10.00 h
Target version:D3 Repair

Description

Initial issues

  • No power on
  • No battery
  • Damaged battery cover

Fixes:

  • 2SK2023 PNP BJT blown on DC-DC board. After replacement to new one camera powers on and functions
  • Top, Iso aux and viewfinder LCDs are not working. Fixed by FPC cables reconnect and cleaning
  • Mirror unit lockups after most of shots

To be fixed:

  • Buy EN-EL4a battery and charger
  • Buy strap

_D3T0083.jpg - Nikon BL-4 battery cover (49.7 KB) tin, 13/05/2014 17:38

History

#1 Updated by tin over 5 years ago

  • % Done changed from 0 to 30
  • Buy EN-EL4a battery and charger
  • Buy strap

Shipped, waiting for delivery.


Also found dodgy diode. It seem to be working, 0.74V Vf, but it was definitely heating up before. Not sure if it's "normal".

Problem is in that chunk of mechanics, aperture/mirror control unit.
One of levers for exposure metering unit was bent, fixed it. Should be some other problem somewhere too, which prevents mechanics to interact correctly.

#2 Updated by tin over 5 years ago

  • % Done changed from 30 to 70

Left to do:

  • Receive battery and test with battery power
  • Autofocus need adjustment, with 50/1.4D it gets too close. Likely AF unit aligment or adjustment.
  • Standard AF-ON button does not work (no reaction). AF-ON on portrait side works fine.
  • Refurbish rubber pads
  • Clean image sensor. :)

#3 Updated by tin over 5 years ago

Standard AF-ON button does not work (no reaction). AF-ON on portrait side works fine.
Clean image sensor. :)

Done, AF-ON was disabled in menu.

#4 Updated by tin over 5 years ago

  • % Done changed from 70 to 90

Autofocus need adjustment, with 50/1.4D it gets too close. Likely AF unit aligment or adjustment.

Done via adjusting AF finetune +4 and turning two AF module screws #295 4.5 turns counterclockwise.

#5 Updated by tin over 5 years ago

  • Description updated (diff)

#6 Updated by tin over 5 years ago

Received new battery cover BL-4

#7 Updated by tin over 5 years ago

  • Status changed from In Progress to Resolved

Fixed second EN-EL4a battery.
Repair done.

Need write article and close issue.

#8 Updated by tin about 4 years ago

  • Status changed from Resolved to Closed

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