Electronics Forum: hdd controller failure (Page 8 of 18)

Re: Reflow Power Failure

Electronics Forum | Mon Nov 22 10:29:18 EST 1999 | Boca

Hany, Chartrain has some good points, if you product is expensive, what does the cost of a UPS amount to? Remember, you don't want to 'back up' the heating zones, just the controller and conveyor drive system so product doesn't get stuck in the oven

Black pad on BGA after removal

Electronics Forum | Wed May 04 22:04:55 EDT 2005 | davef

First, you cannot determine if this is "black pad" by looking at it. You must do laboratory analysis, either microsectioning or EDS. [But it sure sounds like "black pad."] Second, if it is black pad, it was created by the company that fabricated t

The story so far!

Electronics Forum | Mon Dec 04 18:29:47 EST 2006 | SWAG

Some production problems we've faced: 1) Delamination; 2) Reflow fixture distortion; 3) Obsolete parts; 4) Failure of blower motor bearings in older reflow ovens; 5) Poor toe fillets with miniSOTs on thicker PCB's; 6) Lack of updated component data s

Chosing ENIG vs OSP

Electronics Forum | Tue Jun 02 18:38:13 EDT 2009 | joeherz

Nicoleta, We're a CM and have produced many millions of solder joints with ENIG boards with no failure attributed to this surface finish. This represents several boards houses. Another poster is correct that any supplier you choose should have a c

Quad QSV TEP Controller Issue

Electronics Forum | Thu Jul 25 16:20:59 EDT 2019 | bobpan

Top red led is on or off depending on version of tep board. The green leds light when the transport sensor that it communitcates with is seeing a board over it. Tep controller init failure can be one of the following. 1. Check reseat tep card and

Koh Young 3030VAL Failure on Homing

Electronics Forum | Thu Mar 24 23:34:55 EDT 2022 | glasscake

My Koh Young 3030VAL errors on the homing routine. The "DTool" "MCS" gives me an error "Before homing, X-AAxis already checked negative limit..." "Before Hoking, Y Axis already checked negative limit..." "Please turn off the control-power-switch, an

Quad QSV-1 - Several TEP1 faults during Startup

Electronics Forum | Thu Aug 08 11:04:48 EDT 2019 | btfonseca

Hi everyone, I was recently trying to troubleshoot a bad floppy driver on our QSV-1, which actually worked, I was able to read floppy drives but for some reason it all went downhill when one of the green LED's turned off and another red LED turned on

Cap Short

Electronics Forum | Mon Nov 22 17:32:34 EST 2004 | davef

Assemblers often assume that the board and component suppliers provide them with clean product. This was not a problem when everyone used water washable fluxes, because the water washing used to clean the flux residues also cleaned the board and com

Re: PCB Material selection

Electronics Forum | Mon Jun 26 20:34:14 EDT 2000 | Dave F

Gary: Allow expand on this topic a bit. Back in the gray skied past when people wore calculators on their belts, rather than pagers n Palms, and didn�t drink California spill, they used HASS that you mentioned and HALT (Highly Accelerated Life Test

No Clean

Electronics Forum | Tue Jun 12 18:06:17 EDT 2001 | davef

The criterion you use will depend on the test method you select. For minimum requirements, look at J-STD-001C, Para 8, "Cleanliness Requirements". I figure that you�d measure the residues on a lot of your current product, measure the res on a lot o


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