So I had some time this weekend to start putting together another HTPC for the kid's playroom, and thought to myself.. "Hey! I'll recap the power supply in advance so we won't have to touch this for a loooong time". It's an Apevia WIN-500XSPX that came in a Apevia X-MASTER-BK/500 HTPC case. So I went through and remove all 21, thinking that it'll be a quick one. As I go to start putting the new ones in (combination of FC/FM series, and a few BCN custom Samxon GD/RS), I run across two of the small ones that don't have their polarities marked on the PCB. No problem, I think to myself -- I have another one of these boxes out in the living room that I can reference... I open up the power supply (same HTPC case, same power supply model) and the insides are completely different! Help! I can make an educated guess, but would rather be 100% sure and avoid any fireworks.
I've attached some pics of the unit and marked up one that have caps near the SMPS controller (a KA7500C, datasheet attached). C212 in the top left seems to be fairly obvious. The top lead connects with the top lead on the cap to its left (C213), which is connected to the screwhole (ground). I'm assuming that the negative lead of C212 should connect to ground (top hole)? For the cap south of the SMPS controller (C208), the top lead connects to pins 13/14/16 of the controller (13/14 are tied together) and the bottom lead connects to pin 4 of the controller. It seems to me that the positive lead goes towards the controller -- is this correct?
What do you guys think of the unit? Safe to do a Q9400/4GB with a 2TB drive and quad tuner for an extended period of time?
I've attached some pics of the unit and marked up one that have caps near the SMPS controller (a KA7500C, datasheet attached). C212 in the top left seems to be fairly obvious. The top lead connects with the top lead on the cap to its left (C213), which is connected to the screwhole (ground). I'm assuming that the negative lead of C212 should connect to ground (top hole)? For the cap south of the SMPS controller (C208), the top lead connects to pins 13/14/16 of the controller (13/14 are tied together) and the bottom lead connects to pin 4 of the controller. It seems to me that the positive lead goes towards the controller -- is this correct?
What do you guys think of the unit? Safe to do a Q9400/4GB with a 2TB drive and quad tuner for an extended period of time?
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