KenLayton
In Memoriam
The Sparkle Power (FSP Group, Inc. ) Model FSP270-50SNV power supply is used in some Raw Thrills "Buck Hunter Pro" computers. This is a 270 watt power supply with noise killer.
Symptoms:
Noise/fine ripples in the picture. Sometimes power supply won't startup. Sometimes power supply makes computer keep rebooting.
Cause:
Open it up and inside there's a small (about 2" by 2" ) circuit board standing up from the main board. This little board will have the markings "JR CH24B" on it and it's soldered to the main board via an 11 pin header. On this board are several _tiny_ electrolytic capacitors that have gone open and need to be replaced. Replace these:
C1: 1 uf @ 50 volts
C5: 2.2 uf @ 50 volts
C7: 22 uf @ 35 volts
C8: 1 uf @ 50 volts
C10: 2.2 uf @ 50 volts
On the main board are these two electrolytics that have gone bad:
220 uf @ 16 volts
4.7 uf @ 50 volts
Unfortunately I forgot to write down the locations for those two caps.
Surprisingly none of the other caps (including the large filter caps) were bad.
This fixed this power supply and it's back on location again.
Symptoms:
Noise/fine ripples in the picture. Sometimes power supply won't startup. Sometimes power supply makes computer keep rebooting.
Cause:
Open it up and inside there's a small (about 2" by 2" ) circuit board standing up from the main board. This little board will have the markings "JR CH24B" on it and it's soldered to the main board via an 11 pin header. On this board are several _tiny_ electrolytic capacitors that have gone open and need to be replaced. Replace these:
C1: 1 uf @ 50 volts
C5: 2.2 uf @ 50 volts
C7: 22 uf @ 35 volts
C8: 1 uf @ 50 volts
C10: 2.2 uf @ 50 volts
On the main board are these two electrolytics that have gone bad:
220 uf @ 16 volts
4.7 uf @ 50 volts
Unfortunately I forgot to write down the locations for those two caps.
Surprisingly none of the other caps (including the large filter caps) were bad.
This fixed this power supply and it's back on location again.
