SL3000/SL8500 - Damaged Pins Discovered During RE Installation

Asset ID:	1-72-1535714.1
Update Date:	2017-09-21
Keywords:

Solution Type Problem Resolution Sure

Solution 1535714.1 : SL3000/SL8500 - Damaged Pins Discovered During RE Installation

Applies to:

Sun StorageTek SL8500 Modular Library System - Version Not Applicable and later
Sun StorageTek SL3000 Modular Library System - Version Not Applicable and later
Information in this document applies to any platform.

Symptoms

Damaged pins discovered during RE installation when cards are inserted into the mother board. (Redundent Electronics)

Cause

Not using proper insertion techniques to install PWA / circuit card.

Solution

Card Insertion Information from Service Manuals - We continue to have reports of damaged pins discovered during RE installations. There was a procedure published in the SL3000 and SL8500 Service Manuals that provides some guidance when inserting cards into the midplane (motherboard). Below is the information and also applies to HBT cards:

Caution - HBC/HBCR cards have high density connectors. When initially installing the card into the slot, carefully seat the card by pressing on the faceplate and then push the card forward in parallel with the midplane until it contacts the midplane. Only after the card is seated into the midplane connector should you use the top and bottom levers on the card to complete the installation.

The idea is to use very little force on the card until you feel it drop onto the midplane pins. This is accomplished while rocking the card while applying gentle pressure. You will feel the card "stabilize" on the pins and you will notice that the inside face of the card is flush with the outside face of the adjoining card as I tried to illustrate below (looking down on the cards from above). When both of these conditions exist you should be able to safely use the levers to insert the card.

Face of new card
to be installed
________________
                |     Face of adjoining card
________________| __________________
                 |
         |__________________

If you just take a card, slide it into the slot and snap it in with the levers you will very likely damage the pins and/or the card if you do not first seat the card as described above.

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