Page 7-10
Service Manual - KNG Portables
integrated circuit data
The illustrations below show acceptable amounts of solder applied to surface mount chips.
preferred
the solder fillet is continuous around the perimeter of
the chip termination.
There is good wetting af the land and termination.
Fillet is approximately 30% of the termination height.
minimum acceptaBle
There is 50% solder coverage of the perimeter of the
chip.
The fillet height is at least 10% of the termination
height.
The illustration below shows a chip component that should be reworked because of insufficient solder.
There is less than 50% solder coverage around the perimeter and bottom of the chip.
unacceptaBle – rework
There is less than 50% solder coverage on the
perimeter of the chip.
There is less than 50% solder coverage on the bottom
of the chip.
The solder fillet is insufficient.
Summary of Contents for P150
Page 15: ...Page 1 6 Service Manual KNG Portables General Information BLANK PAGE ...
Page 79: ...Page 2 64 Service Manual KNG Portables Installation and Programming BLANK PAGE ...
Page 103: ...Page 3 24 Service Manual KNG Portables Operation ...
Page 111: ...Page 4 8 Service Manual KNG Portables Theory of Operation ...
Page 123: ...Page 6 4 Service Manual KNG Portables Final Assembly Illustrated Parts List BLANK PAGE ...
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