Nikon D70 DC/DC Board Replacement

Andrew Bookholt et 2 autres contributeurs

Dernière mise à jour le May 7, 2024

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Introduction

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Replacing the DC/DC board requires a fine tipped soldering iron and knowledge of surface mount soldering.

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Étape 1 Battery

Nikon D70 DC/DC Board Replacement, Battery: étape 1, image 1 de 1

Use your finger tip to pull the battery release tab toward the center of the D70.
Open the battery door and rotate it away from the bottom cover.

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Étape 2

Pull the battery out of the D70.
It may be necessary to wiggle the battery while pulling to free it from its pocket in the case.

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Étape 3 Bottom Cover

Nikon D70 DC/DC Board Replacement, Bottom Cover: étape 3, image 1 de 1

Remove the following eight screws securing the bottom cover to the D70:
Six 5.8 mm Phillips screws
One 10.7 mm Phillips screws
One 8.2 mm Phillips screws

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Étape 4

Carefully pull the bottom cover to separate it from the body of the D70.
Remove the bottom cover from the D70.

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Étape 5 Memory Compression Board

Nikon D70 DC/DC Board Replacement, Memory Compression Board: étape 5, image 1 de 3

Nikon D70 DC/DC Board Replacement, Memory Compression Board: étape 5, image 2 de 3

Nikon D70 DC/DC Board Replacement, Memory Compression Board: étape 5, image 3 de 3

Remove the four ZIF ribbon cables highlighted in red by using the following procedure:
Use your fingernail to flip up the ZIF cable retaining flap on each socket.
Be sure you are prying up the retaining flap, not the socket.
Pull the ribbon cable straight out of its socket.

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Étape 6

Carefully peel back the piece of tape covering the Compact Flash ribbon cable socket.
It is not necessary to completely remove this piece of tape.

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Étape 7

Nikon D70 DC/DC Board Replacement: étape 7, image 3 de 3

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Use your fingernails to carefully pull the ZIF cable lock away from its socket.
Do not try to completely remove the ZIF cable lock. It will move about 1 mm and stop.
Use a pair of tweezers to pull the Compact Flash ribbon cable out of its socket.

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Étape 8

Be sure not to lose the small iron core around the DC-In ribbon cable.

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Étape 9

Remove the four 4.3 mm Phillips screws securing the memory compression board to the D70.

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Étape 10

Use a pair of tweezers to pull the USB connector bracket away from the edge of the memory compression board.

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Étape 11

Grab the memory compression board by its edges at the position shown in the first picture.
Pull the memory compression board straight up off the DC/DC board to avoid damaging the connector on the underside of the memory compression board.

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Étape 12 DC/DC Board

Nikon D70 DC/DC Board Replacement, DC/DC Board: étape 12, image 1 de 1

Disconnect the DC-In board connector from the DC/DC board by pulling its connector away from the center of the board.

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Étape 13

Use your thumbnails to push the CCD connector out of its socket.

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Étape 14

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Use your fingernail to carefully flip up the ZIF cable retaining flap for the ribbon cable socket near the front cover.
Be sure you are prying up on the movable cable retaining flap, not the socket itself.
Use a pair of tweezers to carefully pull the ribbon cable out of its socket.

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Étape 15

Use your fingernail to flip up the ZIF cable retaining flap on the socket near the battery opening.
Be sure you are prying up on the movable cable retaining flap, not the socket itself.
Use a pair of tweezers to pull the ribbon cable out of its socket.

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Étape 16

Carefully de-solder the eight leads boxed in red.
Do not heat up the board excessively while de-soldering. There are many heat sensitive components mounted to the DC/DC board.
There are two black leads that look very similar. The thinner of the two connects closer to the center of the board.

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Étape 17

De-solder the positive and negative DC-In leads (boxed in red) from the DC/DC board.
Do not heat up the board excessively while de-soldering the leads.

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