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Thread: CD32 Lifted Solder Pad - Advice On How to Fix

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    Amibayer! wmsteele's Avatar
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    Default CD32 Lifted Solder Pad - Advice On How to Fix

    Was going to happen at some point, I've replaced hundreds of SMD caps now... tonight I lifted my first one

    Following the trace it looks like I can fix with a small patch wire to any of the red circles, would this work?



    (CD32 Board Rev 4.1)

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    Allen1's Avatar
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    That should work OK, but check the track first with a multimeter on Ohms or continuity (bleeper) to make sure that the sites you have marked are for the same track (they appear to be looking at the picture). Also how bad is the pad damage? it looks bad but is that the pad sticking up, if so you may be able to carefully tease it back down and with some Araldite resin type glue stick it back in place. If that is do-able then let it cure and don't overheat the pad when fitting the cap or it will smoke or lift the pad again (both bad for you). I would also add a little hot glue to stop any extra strain on the cap from coming loose and taking the other pad with it.

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    A Small patch wire will do the trick ,take to the first via bud just tack the wire onto the cap before you put it on the board and perhaps a dab of glue to hold that side down, you could try replacing the pad but you will need a high temp epoxy to make sure it sticks to the mobo

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    Amibayer! wmsteele's Avatar
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    Thanks chaps, looks like I will be able to fix this with a little patch wire. Will get myself organised and post a pic of the results...

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    Amibayer! bebek's Avatar
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    Quote Originally Posted by wmsteele View Post
    Thanks chaps, looks like I will be able to fix this with a little patch wire. Will get myself organised and post a pic of the results...
    DO not be hard on yourself . These CD32 caps are pretty visious and you have just lifted what was already in the air propably .

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    Amibayer! wmsteele's Avatar
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    Haven't been able to test as I'm short of a few caps but looks passable...



    Just need a blob of hot glue to keep everything in place

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    `Jobs a good un `

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    Amibayer! wmsteele's Avatar
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    Was still having issues with this CD32 after a recap and fitting a new cd laser unit, loading original and cdr titles was very hit and miss, no amount of tweaking the laser pot resulted in a reliable setup. After spending ages troubleshooting I decided to have a look under the metal shield above the cd unit, was surprised (or not!) to find another collection of 15 caps, 4 of which were looking decidedly bloated! Not good, the CD32 sure is full of surprises.

    I’m going to replace all the cd controller caps as well, just need to wait on some of the caps arriving… fingers crossed this results in a reliable restoration. Can post some pictures if anyone is interested, or a list of the caps required if it would be useful??
    Last edited by wmsteele; 27th October 2015 at 14:00.

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    Yes please post some pics bud

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    Amibayer! wmsteele's Avatar
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    Before...
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    The board after the caps have been removed, still needs a good clean...
    Click image for larger version. 

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    Caps needed are..
    • 1 x 2.2uf 50v
    • 1 x 4.7uf 35v
    • 1 x 47uf 6.3v
    • 2 x 33uf 6.3
    • 4 x 100uf 16v
    • 6 x 10uf 16v

    Cap locations...
    • C102 - 4.7uf 35v
    • C103 - 10uf 16v
    • C104 - 33uf 6.3
    • C108 - 100uf 16v
    • C117 - 10uf 16v
    • C118 - 10uf 16v
    • C121 - 10uf 16v
    • C123 - 47uf 6.3v
    • C128 - 10uf 16v
    • C129 - 10uf 16v
    • C130 - 100uf 16v
    • C201 - 100uf 16v
    • C202 - 100uf 16v
    • C203 - 2.2uf 50v
    • C211 - 33uf 6.3v
    Last edited by wmsteele; 28th October 2015 at 00:17.

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