Pigsnoot Posted November 17, 2015 Report Share Posted November 17, 2015 My sammichSID is hopelessEverything is working except the control surface, It's not reacting to buttons and encoder, and it's acting weird....I swapped IC's, uploaded and re-uploaded firmware....checked solder joints...I'm all out of options...the more I try to fix it the more it gets worse...I'm getting paranoia over stuff, I thought one of the buttons was bad so I took it off and ruined a trace.....I have to lay off it, because I'm making stupid emotional decisions....so PLEASE I NEED HELP!Anybody who has done reparations on Sammich please respond, I will pay for your time and expenses.I don't want this sammich laying in the corner, broken, not being used...It makes me VERY SADthank you for helping me Quote Link to comment Share on other sites More sharing options...
Katch Posted November 17, 2015 Report Share Posted November 17, 2015 Where are you based? Quote Link to comment Share on other sites More sharing options...
Zam Posted November 17, 2015 Report Share Posted November 17, 2015 Hello I find something strange in your picI hope it's a 4 layer PCB because I don't see any trace to any pad for the removed button ?!?If it's a 2 layer there is a manufacturing problem hereIf it's a 4 layer the broken pads will be a problem to connect again the inner traces :( As a global note and i don't want to balm you, but the whole solder joint job don't look so nice, you may have a temperature problem or bad solder/fluxIt can result some problem :( hope you find someone to help you !BestZam Quote Link to comment Share on other sites More sharing options...
Zam Posted November 17, 2015 Report Share Posted November 17, 2015 Wait !!!!I just see little arrow at right hand button (from bottom side) are you sure this is not an indication for wire connection???It may explain why there is no trace here and why button don't work ?!? Quote Link to comment Share on other sites More sharing options...
Katch Posted November 17, 2015 Report Share Posted November 17, 2015 (edited) The arrows indicate pins that you have to be careful don't short on the heatsink on the board below.Agree the whole solder job looks bad. At a guess, you were using lead-free process without a decent flux and the iron not hot enough.CS needs to be completely reflowed and any destroyed traces will need to be bridged with wire. If you can ship to the UK I'll take a look at it - I have a working Sammich to swap test on to make sure nothing on the main board is wonky too. Edited November 17, 2015 by Katch Quote Link to comment Share on other sites More sharing options...
Pigsnoot Posted November 24, 2015 Author Report Share Posted November 24, 2015 Hello and thanks for replying all! Sorry for the late reply, I was waiting for email notifications when somebody posted..but it didn't come throughAnyway, @Katch : yeah The solder job is crap...It was done years ago....and You're right It's lead free solder, and probably the iron was indeed not hot enough...but the other day I checked for continuity with a multi meter and didn't find any bad joints....It's a mess, and it needs help...I'm based in Belgium, but can post to anywhere you wantIt's effin' sad this box is laying around for years now, useless, broken, depressed and not sammichSIDdin' at all!Would be great if you want to take a look...let me know when you got the time and what I can do for you in return!Thanks Quote Link to comment Share on other sites More sharing options...
Pigsnoot Posted November 24, 2015 Author Report Share Posted November 24, 2015 maybe a last resort is to try and replace the resistor array, and also resolder it properly with normal solder? Quote Link to comment Share on other sites More sharing options...
Katch Posted November 30, 2015 Report Share Posted November 30, 2015 You have a pm with my details if you want to pack it up and send it my way. Quote Link to comment Share on other sites More sharing options...
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