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Version actuelle par : jayeff

Texte:

Hi,
Have you tried changing the [link|https://www.ebay.com/itm/154306128949|DC-In jack] (supplier example only)?
Localized heating of components in electrical circuits can sometimes be due to a voltage drop across the component caused by a resistive connection when perhaps there shouldn’t be one e.g. a resistive connection between plug and socket due to lack of tension in socket spring terminals or incorrect sizing between the two (plug and socket) or perhaps an internal dry joint connection in the socket itself.
It could also be caused by excess current flow through the component. This current may not be enough to blow a fuse perhaps but over time may be enough to damage the component. The charger specs state that the output is 8.5A/11.5A so presumably the socket should be rated to handle the higher value
-Normally the resistance between the input and the output sides of a DC-In socket would be either 0.00Ω (short circuit) or no more than approx. <0.03Ω.
+Normally the resistance between the input and the output sides of a DC-In socket would be either 0.00Ω (short circuit) or no more than approx. 0.03Ω.
Without a schematic for the motherboard (I couldn’t find one - is it a FY715 NM-C541 motherboard?) it would be hard to find a suitable testing point, just after the DC-In jack output connections (presumably hard to access on the socket itself) to test to see if there is a voltage drop between the input to the jack and the output of the jack i.e. measure the voltage at the adapter plug before insertion into the jack and then measure the voltage at a suitable point very close to the output (motherboard side) of the DC-In jack.
Just what I’d try.

Statut:

open

Modifié par : jayeff

Texte:

Hi,
Have you tried changing the [link|https://www.ebay.com/itm/154306128949|DC-In jack] (supplier example only)?
Localized heating of components in electrical circuits can sometimes be due to a voltage drop across the component caused by a resistive connection when perhaps there shouldn’t be one e.g. a resistive connection between plug and socket due to lack of tension in socket spring terminals or incorrect sizing between the two (plug and socket) or perhaps an internal dry joint connection in the socket itself.
It could also be caused by excess current flow through the component. This current may not be enough to blow a fuse perhaps but over time may be enough to damage the component. The charger specs state that the output is 8.5A/11.5A so presumably the socket should be rated to handle the higher value
-Normally the resistance between the input and the output sides of a DC-In socket would be either 0.00Ω (short circuit) or approx. <0.03Ω.
+Normally the resistance between the input and the output sides of a DC-In socket would be either 0.00Ω (short circuit) or no more than approx. <0.03Ω.
Without a schematic for the motherboard (I couldn’t find one - is it a FY715 NM-C541 motherboard?) it would be hard to find a suitable testing point, just after the DC-In jack output connections (presumably hard to access on the socket itself) to test to see if there is a voltage drop between the input to the jack and the output of the jack i.e. measure the voltage at the adapter plug before insertion into the jack and then measure the voltage at a suitable point very close to the output (motherboard side) of the DC-In jack.
Just what I’d try.

Statut:

open

Modifié par : jayeff

Texte:

Hi,
Have you tried changing the [link|https://www.ebay.com/itm/154306128949|DC-In jack] (supplier example only)?
-Localized heating of components in electrical circuits can sometimes be due to a voltage drop across the component caused by a resistive connection when perhaps there shouldn’t be one e.g. a resistive connection between plug and socket due to lack of tension in socket spring terminals or incorrect sizing between the two or perhaps an internal dry joint connection in the socket itself.
+Localized heating of components in electrical circuits can sometimes be due to a voltage drop across the component caused by a resistive connection when perhaps there shouldn’t be one e.g. a resistive connection between plug and socket due to lack of tension in socket spring terminals or incorrect sizing between the two (plug and socket) or perhaps an internal dry joint connection in the socket itself.
It could also be caused by excess current flow through the component. This current may not be enough to blow a fuse perhaps but over time may be enough to damage the component. The charger specs state that the output is 8.5A/11.5A so presumably the socket should be rated to handle the higher value
-Normally the resistance between the input and the output sides of a DC-In jack would be either 0.00Ω (short circuit) or approx. <0.03Ω.
+Normally the resistance between the input and the output sides of a DC-In socket would be either 0.00Ω (short circuit) or approx. <0.03Ω.
-Without a schematic for the motherboard (I couldn’t find one - is it a FY715 NM-C541 motherboard?) it would be hard to find a suitable testing point, just after the DC-In jack output connections (presumably hard to access on the socket itself) to test to see if there is a voltage drop between the input to the jack and the output of the jack i.e. measure the voltage at the adapter plug before insertion into the jack and then measure the voltage at a suitable point on the output (motherboard side) of the DC-In jack.
+Without a schematic for the motherboard (I couldn’t find one - is it a FY715 NM-C541 motherboard?) it would be hard to find a suitable testing point, just after the DC-In jack output connections (presumably hard to access on the socket itself) to test to see if there is a voltage drop between the input to the jack and the output of the jack i.e. measure the voltage at the adapter plug before insertion into the jack and then measure the voltage at a suitable point very close to the output (motherboard side) of the DC-In jack.
Just what I’d try.

Statut:

open

Modifié par : jayeff

Texte:

Hi,
Have you tried changing the [link|https://www.ebay.com/itm/154306128949|DC-In jack] (supplier example only)?
-Localized heating of components in electrical circuits can sometimes be due to a voltage drop across the component caused by a resistive connection when perhaps there shouldn’t be one e.g. a resistive connection between plug and socket due to lack of tension in socket spring terminals or incorrect sizing between the two or perhaps an internal dry joint connection.
+Localized heating of components in electrical circuits can sometimes be due to a voltage drop across the component caused by a resistive connection when perhaps there shouldn’t be one e.g. a resistive connection between plug and socket due to lack of tension in socket spring terminals or incorrect sizing between the two or perhaps an internal dry joint connection in the socket itself.
It could also be caused by excess current flow through the component. This current may not be enough to blow a fuse perhaps but over time may be enough to damage the component. The charger specs state that the output is 8.5A/11.5A so presumably the socket should be rated to handle the higher value
Normally the resistance between the input and the output sides of a DC-In jack would be either 0.00Ω (short circuit) or approx. <0.03Ω.
Without a schematic for the motherboard (I couldn’t find one - is it a FY715 NM-C541 motherboard?) it would be hard to find a suitable testing point, just after the DC-In jack output connections (presumably hard to access on the socket itself) to test to see if there is a voltage drop between the input to the jack and the output of the jack i.e. measure the voltage at the adapter plug before insertion into the jack and then measure the voltage at a suitable point on the output (motherboard side) of the DC-In jack.
Just what I’d try.

Statut:

open

Modifié par : jayeff

Texte:

Hi,
-Have you tried changing the [https://www.ebay.com/itm/154306128949|DC-In jack] (supplier example only)?
+Have you tried changing the [link|https://www.ebay.com/itm/154306128949|DC-In jack] (supplier example only)?
-Localized heating of components in electrical circuits can sometimes be due to a voltage drop across the component caused by a resistive connection when perhaps there shouldn’t be one e.g. a dry joint connection. It could also be caused by excess current flow through the component. This current may not be enough to blow a fuse perhaps but over time may be enough to damage the component
+Localized heating of components in electrical circuits can sometimes be due to a voltage drop across the component caused by a resistive connection when perhaps there shouldn’t be one e.g. a resistive connection between plug and socket due to lack of tension in socket spring terminals or incorrect sizing between the two or perhaps an internal dry joint connection.
-Normally the resistance between the input and the output sides of a DC-In jack would be either 0.00Ω (short circuit) or approx. <30mΩ.
+It could also be caused by excess current flow through the component. This current may not be enough to blow a fuse perhaps but over time may be enough to damage the component. The charger specs state that the output is 8.5A/11.5A so presumably the socket should be rated to handle the higher value
+
+Normally the resistance between the input and the output sides of a DC-In jack would be either 0.00Ω (short circuit) or approx. <0.03Ω.
Without a schematic for the motherboard (I couldn’t find one - is it a FY715 NM-C541 motherboard?) it would be hard to find a suitable testing point, just after the DC-In jack output connections (presumably hard to access on the socket itself) to test to see if there is a voltage drop between the input to the jack and the output of the jack i.e. measure the voltage at the adapter plug before insertion into the jack and then measure the voltage at a suitable point on the output (motherboard side) of the DC-In jack.
Just what I’d try.

Statut:

open

Contribution d'origine par : jayeff

Texte:

Hi,

Have you tried changing the [https://www.ebay.com/itm/154306128949|DC-In jack] (supplier example only)?

Localized heating of components in electrical circuits can sometimes be due to a voltage drop across the component caused by a resistive connection when perhaps there shouldn’t be one e.g. a dry joint connection. It could also be caused by excess current flow through the component. This current may not be enough to blow a fuse perhaps but over time may be enough to damage the component

Normally the resistance between the input and the output sides of a DC-In jack would be either 0.00Ω (short circuit) or approx. <30mΩ.

Without a schematic for the motherboard (I couldn’t find one - is it a FY715 NM-C541 motherboard?) it would be hard to find a suitable testing point, just after the DC-In jack output connections (presumably hard to access on the socket itself) to test to see if there is a voltage drop between the input to the jack and the output of the jack i.e. measure the voltage at the adapter plug before insertion into the jack and then measure the voltage at a suitable point on the output (motherboard side) of the DC-In jack.

Just what I’d try.

Statut:

open