Peripheral Crate Electronics

Testing, Installation and Commissioning Procedures

This photo shows the DMB component side. Front to left and back to right. Note the ID sticker on the board just above the ‘OSU …’ silk screen. Also the two alignment pins at the rear of the board.

1.3.4 DMB Visual Inspection and mechanical corrections –

1.3.4.1 Labeling - The DMB do not have a serial number on the front panel. Labels must be made and attached to the front panel of each DMB.

The labels are DYMO – 9mm – Black print on White tape

and are applied at the very bottom of the front panel as shown in the photo. The length must be hand trimmed to be just shorter than the width of the panel. The ID number format is ‘DMBnnn’ and must correspond to the serial number on the label on the board. Please see top photo for location.

1.3.4.1Inspect and Correct press fit pin guide at back of board – On many boards either or both of the press fit pin guides are not pushed in fully. Check each board for properly pressed in guides. When there is a gap between the guide and the board surface the guide must be pressed completely into the board. To do this use a large channel lock pliers. Place the pliers over the rear of the board so that it presses on the top of the guide and the outside of the board under the guide. See the arrows in the photo. Squeeze firmly to press the guide into contact with the board surface. Then tighten the Philips head screw.

This photo was taken from the rear of the board showing the board edge and the press fit guide. The guide is connected to the board by a press fit pin, in the forground and a Philips head screw in the background.

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PCProceduresPage1-DMBMech.htm 11-March-2006 Fred Borcherding