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12-30-2005, 05:23 AM
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#1 |
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Member
Join Date: Dec 2004
City & State: Estonia
Posts: 35
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AOpen FSP300-60BT(12V)
Has one bad cap - Jamicon TK series 3300uF 10V (all the other caps - almost all Teapos - look OK) and a burnt resistor (caused by the bad cap?).
It was connected to a board that had bad caps (Epox 8K9A2+) and the previous owner claimed that it still was still stable - didn't try it myself, thought I will fix it at first. |
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12-30-2005, 05:54 AM
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#2 |
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Super Modulator
Join Date: Nov 2003
City & State: Αθήνα
Posts: 7,973
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Re: AOpen FSP300-60BT(12V)
Jamicon TK? thats just great........any more bad news today
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12-30-2005, 06:09 AM
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#3 |
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Super Moderator
Join Date: Nov 2003
City & State: dayton ohio
Posts: 6,435
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Re: AOpen FSP300-60BT(12V)
thats a fortron and the resistor is not burned.
its shrinktube and they all look like that. recap and reinstall.its worth it. |
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12-30-2005, 06:23 AM
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#4 |
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Member
Join Date: Dec 2004
City & State: Estonia
Posts: 35
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Re: AOpen FSP300-60BT(12V)
I'm not sure it failed because of the "bad cap problem". The failed cap is connected between +5V (the red wires near the capacitor) and ground. The resistor must have been quite hot to make the shrink tube look like that, right?
Last edited by sulbert; 12-30-2005 at 06:26 AM.. |
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12-30-2005, 12:50 PM
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#5 | |
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Badcaps Veteran
Join Date: Aug 2005
City & State: San Jose, CA
My Country: USA, Unsure of Planet
Line Voltage: 120VAC, 60Hz & 115VAC, 400Hz
I'm a: Professional Tech
Posts: 1,580
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Re: AOpen FSP300-60BT(12V)
Quote:
 Shrink-sleeving on a 5W or 10W power resistor? What's up with that? They already insulated the long wire lead. The shrink sleeving will hold in heat, which probably caused the shink sleeving to shrink even more until it split.
__________________
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12-30-2005, 03:28 PM
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#6 |
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Badcaps Veteran
Join Date: Jul 2005
City & State: ----
My Country: Sweden
Line Voltage: 230v 50Hz
Posts: 2,499
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Re: AOpen FSP300-60BT(12V)
It looks like they just used a bit too much shrink tube, they only wanted it to cover the lead but it got a bit long maybe? Since it's only covering half of the resistor I mean...
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12-30-2005, 04:42 PM
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#7 |
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Super Moderator
Join Date: Nov 2003
City & State: dayton ohio
Posts: 6,435
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Re: AOpen FSP300-60BT(12V)
note the screw in the inductor on the right.
cheap iron core :-) |
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01-26-2006, 08:45 AM
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#8 |
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Member
Join Date: Dec 2004
City & State: Estonia
Posts: 35
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Re: AOpen FSP300-60BT(12V)
Replaced the cap with a Sanyo MV-WX series low ESR one (it's OK, isn't it?), removed the shrink tube from the resistor and the PSU is working fine again.
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01-26-2006, 09:46 AM
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#9 | |
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Badcaps Veteran
Join Date: Jul 2005
City & State: ----
My Country: Sweden
Line Voltage: 230v 50Hz
Posts: 2,499
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Re: AOpen FSP300-60BT(12V)
Quote:
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