What is this substance on board?
2
$begingroup$
So I’m trying to fix my blu-ray player and there are two spots where this beige stuff is. Is this there intentionally, or is this the result of some malfunction?
Could someone please explain what it is and why it happened?
Thanks
transistors capacitor
edited Jan 14 at 3:46
K H
2,028215
asked Jan 13 at 20:57
Nate ThompsonNate Thompson
111
$endgroup$
add a comment |
2
$begingroup$
So I’m trying to fix my blu-ray player and there are two spots where this beige stuff is. Is this there intentionally, or is this the result of some malfunction?
Could someone please explain what it is and why it happened?
Thanks
transistors capacitor
edited Jan 14 at 3:46
K H
2,028215
asked Jan 13 at 20:57
Nate ThompsonNate Thompson
111
$endgroup$
add a comment |
2
2
2
$begingroup$
So I’m trying to fix my blu-ray player and there are two spots where this beige stuff is. Is this there intentionally, or is this the result of some malfunction?
Could someone please explain what it is and why it happened?
Thanks
transistors capacitor
edited Jan 14 at 3:46
K H
2,028215
asked Jan 13 at 20:57
Nate ThompsonNate Thompson
111
$endgroup$
So I’m trying to fix my blu-ray player and there are two spots where this beige stuff is. Is this there intentionally, or is this the result of some malfunction?
Could someone please explain what it is and why it happened?
Thanks
transistors capacitor
transistors capacitor
edited Jan 14 at 3:46
K H
2,028215
asked Jan 13 at 20:57
Nate ThompsonNate Thompson
111
edited Jan 14 at 3:46
K H
2,028215
asked Jan 13 at 20:57
Nate ThompsonNate Thompson
111
edited Jan 14 at 3:46
K H
2,028215
edited Jan 14 at 3:46
K H
2,028215
edited Jan 14 at 3:46
K H
2,028215
2,028215
asked Jan 13 at 20:57
Nate ThompsonNate Thompson
111
asked Jan 13 at 20:57
Nate ThompsonNate Thompson
111
asked Jan 13 at 20:57
Nate ThompsonNate Thompson
111
111
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
14
$begingroup$
It's intentional. It's glue (of some sort) to keep parts steady and not break from vibrations when shipping or handling the unit.
answered Jan 13 at 21:08
JustmeJustme
85518
$endgroup$
$begingroup$
Note that the green object in the second image (NTC1, a temperature sensor) appears to be socketed. Not sure why the diode (DR1201) in the first image is glued; anyone want to venture a guess?
$endgroup$
– Alex Hajnal
Jan 14 at 5:43
$begingroup$
@AlexHajnal The diode seems to elevated, possibly due to a heat dissipation requirement from the extra length of the leads? Vibration could cause the leads to break, or they could be bent and contact the TO-220 device (which would probably fry something)
$endgroup$
– Adam
Jan 14 at 6:04
$begingroup$
@Adam Yeah, it does seem high current. I was thinking it might also be added strain relief on a glass package (though all diodes that large that I've seen haven't used glass).
$endgroup$
– Alex Hajnal
Jan 14 at 6:10
2
$begingroup$
Seems somewhat silly - diode likely placed higher to reduce thermal resistance, only to then get coated with insulating gunk. (Perhaps the impact of longer leads is more significant?)
$endgroup$
– Joren Vaes
Jan 14 at 9:43
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
14
$begingroup$
It's intentional. It's glue (of some sort) to keep parts steady and not break from vibrations when shipping or handling the unit.
answered Jan 13 at 21:08
JustmeJustme
85518
$endgroup$
$begingroup$
Note that the green object in the second image (NTC1, a temperature sensor) appears to be socketed. Not sure why the diode (DR1201) in the first image is glued; anyone want to venture a guess?
$endgroup$
– Alex Hajnal
Jan 14 at 5:43
$begingroup$
@AlexHajnal The diode seems to elevated, possibly due to a heat dissipation requirement from the extra length of the leads? Vibration could cause the leads to break, or they could be bent and contact the TO-220 device (which would probably fry something)
$endgroup$
– Adam
Jan 14 at 6:04
$begingroup$
@Adam Yeah, it does seem high current. I was thinking it might also be added strain relief on a glass package (though all diodes that large that I've seen haven't used glass).
$endgroup$
– Alex Hajnal
Jan 14 at 6:10
2
$begingroup$
Seems somewhat silly - diode likely placed higher to reduce thermal resistance, only to then get coated with insulating gunk. (Perhaps the impact of longer leads is more significant?)
$endgroup$
– Joren Vaes
Jan 14 at 9:43
add a comment |
14
$begingroup$
It's intentional. It's glue (of some sort) to keep parts steady and not break from vibrations when shipping or handling the unit.
answered Jan 13 at 21:08
JustmeJustme
85518
$endgroup$
$begingroup$
Note that the green object in the second image (NTC1, a temperature sensor) appears to be socketed. Not sure why the diode (DR1201) in the first image is glued; anyone want to venture a guess?
$endgroup$
– Alex Hajnal
Jan 14 at 5:43
$begingroup$
@AlexHajnal The diode seems to elevated, possibly due to a heat dissipation requirement from the extra length of the leads? Vibration could cause the leads to break, or they could be bent and contact the TO-220 device (which would probably fry something)
$endgroup$
– Adam
Jan 14 at 6:04
$begingroup$
@Adam Yeah, it does seem high current. I was thinking it might also be added strain relief on a glass package (though all diodes that large that I've seen haven't used glass).
$endgroup$
– Alex Hajnal
Jan 14 at 6:10
2
$begingroup$
Seems somewhat silly - diode likely placed higher to reduce thermal resistance, only to then get coated with insulating gunk. (Perhaps the impact of longer leads is more significant?)
$endgroup$
– Joren Vaes
Jan 14 at 9:43
add a comment |
14
14
14
$begingroup$
It's intentional. It's glue (of some sort) to keep parts steady and not break from vibrations when shipping or handling the unit.
answered Jan 13 at 21:08
JustmeJustme
85518
$endgroup$
It's intentional. It's glue (of some sort) to keep parts steady and not break from vibrations when shipping or handling the unit.
answered Jan 13 at 21:08
JustmeJustme
85518
answered Jan 13 at 21:08
JustmeJustme
85518
answered Jan 13 at 21:08
JustmeJustme
85518
answered Jan 13 at 21:08
JustmeJustme
85518
85518
$begingroup$
Note that the green object in the second image (NTC1, a temperature sensor) appears to be socketed. Not sure why the diode (DR1201) in the first image is glued; anyone want to venture a guess?
$endgroup$
– Alex Hajnal
Jan 14 at 5:43
$begingroup$
@AlexHajnal The diode seems to elevated, possibly due to a heat dissipation requirement from the extra length of the leads? Vibration could cause the leads to break, or they could be bent and contact the TO-220 device (which would probably fry something)
$endgroup$
– Adam
Jan 14 at 6:04
$begingroup$
@Adam Yeah, it does seem high current. I was thinking it might also be added strain relief on a glass package (though all diodes that large that I've seen haven't used glass).
$endgroup$
– Alex Hajnal
Jan 14 at 6:10
2
$begingroup$
Seems somewhat silly - diode likely placed higher to reduce thermal resistance, only to then get coated with insulating gunk. (Perhaps the impact of longer leads is more significant?)
$endgroup$
– Joren Vaes
Jan 14 at 9:43
add a comment |
$begingroup$
Note that the green object in the second image (NTC1, a temperature sensor) appears to be socketed. Not sure why the diode (DR1201) in the first image is glued; anyone want to venture a guess?
$endgroup$
– Alex Hajnal
Jan 14 at 5:43
$begingroup$
@AlexHajnal The diode seems to elevated, possibly due to a heat dissipation requirement from the extra length of the leads? Vibration could cause the leads to break, or they could be bent and contact the TO-220 device (which would probably fry something)
$endgroup$
– Adam
Jan 14 at 6:04
$begingroup$
@Adam Yeah, it does seem high current. I was thinking it might also be added strain relief on a glass package (though all diodes that large that I've seen haven't used glass).
$endgroup$
– Alex Hajnal
Jan 14 at 6:10
2
$begingroup$
Seems somewhat silly - diode likely placed higher to reduce thermal resistance, only to then get coated with insulating gunk. (Perhaps the impact of longer leads is more significant?)
$endgroup$
– Joren Vaes
Jan 14 at 9:43
$begingroup$
Note that the green object in the second image (NTC1, a temperature sensor) appears to be socketed. Not sure why the diode (DR1201) in the first image is glued; anyone want to venture a guess?
$endgroup$
– Alex Hajnal
Jan 14 at 5:43
$begingroup$
Note that the green object in the second image (NTC1, a temperature sensor) appears to be socketed. Not sure why the diode (DR1201) in the first image is glued; anyone want to venture a guess?
$endgroup$
– Alex Hajnal
Jan 14 at 5:43
$begingroup$
@AlexHajnal The diode seems to elevated, possibly due to a heat dissipation requirement from the extra length of the leads? Vibration could cause the leads to break, or they could be bent and contact the TO-220 device (which would probably fry something)
$endgroup$
– Adam
Jan 14 at 6:04
$begingroup$
@AlexHajnal The diode seems to elevated, possibly due to a heat dissipation requirement from the extra length of the leads? Vibration could cause the leads to break, or they could be bent and contact the TO-220 device (which would probably fry something)
$endgroup$
– Adam
Jan 14 at 6:04
$begingroup$
@Adam Yeah, it does seem high current. I was thinking it might also be added strain relief on a glass package (though all diodes that large that I've seen haven't used glass).
$endgroup$
– Alex Hajnal
Jan 14 at 6:10
$begingroup$
@Adam Yeah, it does seem high current. I was thinking it might also be added strain relief on a glass package (though all diodes that large that I've seen haven't used glass).
$endgroup$
– Alex Hajnal
Jan 14 at 6:10
2
2
$begingroup$
Seems somewhat silly - diode likely placed higher to reduce thermal resistance, only to then get coated with insulating gunk. (Perhaps the impact of longer leads is more significant?)
$endgroup$
– Joren Vaes
Jan 14 at 9:43
$begingroup$
Seems somewhat silly - diode likely placed higher to reduce thermal resistance, only to then get coated with insulating gunk. (Perhaps the impact of longer leads is more significant?)
$endgroup$
– Joren Vaes
Jan 14 at 9:43
add a comment |
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