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Need someone to do surface level repair - SMSL Loxjie A30
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<blockquote data-quote="gapco" data-source="post: 1161148" data-attributes="member: 14336"><p>Inspecting the underside of the board you will see multiple holes which go through to the top side PCB. Around the IC there are similar holes. This forms part of the heatsink and doubles up as the ground plane. The correct repair would be to use PCB tracks from a PCB track repair kit. These are single tracks,pads,vias etc. that aid in fixing damages PCB tracks. Once the track is repaired solder mask is applied the the affected area and treated. In your case the damaged copper left behind is in and awkward position and not enough to ensure a good and lasting fix. Using copper braid or similar as suggested lifts the IC off the board inhibiting a good enough solder joint to the heat sink and the IC legs to their respective tracks. If the IC did not have a heatsink pad a simple PLCC IC socket would have been an ideal fix.</p><p></p><p>Sorry to say but you may have a new door stop on your hands.</p></blockquote><p></p>
[QUOTE="gapco, post: 1161148, member: 14336"] Inspecting the underside of the board you will see multiple holes which go through to the top side PCB. Around the IC there are similar holes. This forms part of the heatsink and doubles up as the ground plane. The correct repair would be to use PCB tracks from a PCB track repair kit. These are single tracks,pads,vias etc. that aid in fixing damages PCB tracks. Once the track is repaired solder mask is applied the the affected area and treated. In your case the damaged copper left behind is in and awkward position and not enough to ensure a good and lasting fix. Using copper braid or similar as suggested lifts the IC off the board inhibiting a good enough solder joint to the heat sink and the IC legs to their respective tracks. If the IC did not have a heatsink pad a simple PLCC IC socket would have been an ideal fix. Sorry to say but you may have a new door stop on your hands. [/QUOTE]
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Need someone to do surface level repair - SMSL Loxjie A30
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