Hi,
Someone asked me to take a look at his 6 years old, heavily used satellite receiver. To my amazement, despite the satellite receiver, being from a brand with a notorious reputation of being of inferior quality, it was working pretty good.
I checked the voltages:
3.33 ===> 3.36
3.33 ===> 3.36
8.00 ===> 7.64
12.0 ===> 11.7
23.0 ===> 22.7
I changed the only 1000uf 10v SamYoung SHL series with 1000uf 35v SamYoung NXB series. I did this because most of the time in this type of satellite receivers 1000uf caps fails!
Problem: I checked the voltages again:
3.33 ===> 3.36
3.33 ===> 3.36
8.00 ===> 7.44
12.0 ===> 11.5
23.0 ===> 22.5
I don't know what happened!! Could someone please shed some lights?
For your reference:
SamYoung NXB is a Very low impedance cap. Impedance is 0.02. I checked it with ESR meter and it was 0.021. the capacitance also was very close to 1000uf.
SamYoung SHL is not something special. The capacitance has deteriorated to about 800uf and ESR is about 0.4!
Someone asked me to take a look at his 6 years old, heavily used satellite receiver. To my amazement, despite the satellite receiver, being from a brand with a notorious reputation of being of inferior quality, it was working pretty good.
I checked the voltages:
3.33 ===> 3.36
3.33 ===> 3.36
8.00 ===> 7.64
12.0 ===> 11.7
23.0 ===> 22.7
I changed the only 1000uf 10v SamYoung SHL series with 1000uf 35v SamYoung NXB series. I did this because most of the time in this type of satellite receivers 1000uf caps fails!
Problem: I checked the voltages again:
3.33 ===> 3.36
3.33 ===> 3.36
8.00 ===> 7.44
12.0 ===> 11.5
23.0 ===> 22.5
I don't know what happened!! Could someone please shed some lights?
For your reference:
SamYoung NXB is a Very low impedance cap. Impedance is 0.02. I checked it with ESR meter and it was 0.021. the capacitance also was very close to 1000uf.
SamYoung SHL is not something special. The capacitance has deteriorated to about 800uf and ESR is about 0.4!
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