Monz Posted January 20, 2013 Share Posted January 20, 2013 Does anyone know an amptech or someone they could recommend to have a look at my sansamp? I managed to knock it off the top of my cab and it hit the floor with a sickening thump... now all I get is a (bad earth) type buzzing and I dont have the skills to sort it Quote Link to comment Share on other sites More sharing options...
rmorris Posted January 22, 2013 Share Posted January 22, 2013 Location ? Quote Link to comment Share on other sites More sharing options...
Monz Posted January 23, 2013 Author Share Posted January 23, 2013 Sorry.... should have said I'm in North Yorkshire but I can post it anywhere Quote Link to comment Share on other sites More sharing options...
3below Posted January 23, 2013 Share Posted January 23, 2013 Be brave, open it up and have a look. From what you say it could be something as simple as detached screen lead on a jack socket. If it is this obvious it is an easy DIY fix. Quote Link to comment Share on other sites More sharing options...
rmorris Posted January 23, 2013 Share Posted January 23, 2013 [quote name='3below' timestamp='1358924853' post='1947043'] Be brave, open it up and have a look. From what you say it could be something as simple as detached screen lead on a jack socket. If it is this obvious it is an easy DIY fix. [/quote] +1 Sounds like a broken ground (screen) path. Quote Link to comment Share on other sites More sharing options...
3below Posted January 23, 2013 Share Posted January 23, 2013 In a similar incident this week, my dog knocked Rockbass Corvette 5 stringer over (yes I should put back in case). I go to play it, no sound. Open up control cavity, one wire detached from potentiometer. Easy DIY fix, and was not surprised, the soldering in this bass is not the best I have ever seen. Quote Link to comment Share on other sites More sharing options...
Monz Posted January 24, 2013 Author Share Posted January 24, 2013 Ok guys..... (best spitfire pilot voice) I'm going in! Quote Link to comment Share on other sites More sharing options...
jackers Posted January 24, 2013 Share Posted January 24, 2013 (fnar fnar ) good luck! Quote Link to comment Share on other sites More sharing options...
discreet Posted January 24, 2013 Share Posted January 24, 2013 (edited) [quote name='Monz' timestamp='1359007700' post='1948351'] Ok guys... (best spitfire pilot voice) I'm going in! [/quote] He's been in there for a long time now... should we alert the authorities..? Edited January 24, 2013 by discreet Quote Link to comment Share on other sites More sharing options...
Happy Jack Posted January 24, 2013 Share Posted January 24, 2013 He must be out of fuel by now ... he's ditched. Quote Link to comment Share on other sites More sharing options...
discreet Posted January 24, 2013 Share Posted January 24, 2013 [quote name='Happy Jack' timestamp='1359028352' post='1948609'] He must be out of fuel by now ... he's ditched. [/quote] Maybe he did it on purpose, like Orr in Catch-22. Quote Link to comment Share on other sites More sharing options...
Monz Posted January 24, 2013 Author Share Posted January 24, 2013 LOL Right it's put together in a way to stop you getting the circuit board out without desoldering the input/output jacks completely off the board (bloody cowbags). So put it all back together and had a play with all of the dials and the upshot is the presence pot is the problem... with it completely backed off the unit works ok. I need to find out if it can be replaced but I'm guessing the unit will be made in china or somewhere like that Quote Link to comment Share on other sites More sharing options...
3below Posted January 24, 2013 Share Posted January 24, 2013 Do Sansamp have a repair service in the UK? Quote Link to comment Share on other sites More sharing options...
discreet Posted January 24, 2013 Share Posted January 24, 2013 Bloody cowbags? Quote Link to comment Share on other sites More sharing options...
3below Posted January 24, 2013 Share Posted January 24, 2013 Have thought about this a bit more (not sure of brain power after day at work though). The unit only working when presence pot full on could be symptomatic of a 'fractured' solder joint. If the pot is a pcb mounted one it seems even more likely. The fix might be as simple as 'reflowing' the solder joints of the pot on the pcb. Quote Link to comment Share on other sites More sharing options...
rmorris Posted January 25, 2013 Share Posted January 25, 2013 [quote name='3below' timestamp='1359055329' post='1949214'] Have thought about this a bit more (not sure of brain power after day at work though). The unit only working when presence pot full on could be symptomatic of a 'fractured' solder joint. If the pot is a pcb mounted one it seems even more likely. The fix might be as simple as 'reflowing' the solder joints of the pot on the pcb. [/quote] +1. First stop is to reflow the solder joints to the pot. Maybe remove existing solder ( with solder wick ) and re solder. Is there a screen/wire connected to the pot body itself ? If so then it's a suspect as such joints sometimes fail due to the pot body acting as a heatsink during soldering. The joint may then become unreliable over time (dry joint). Re make all the solder joints anyway. Let us know how you get on. Quote Link to comment Share on other sites More sharing options...
3below Posted January 25, 2013 Share Posted January 25, 2013 [quote name='rmorris' timestamp='1359075599' post='1949684'] Maybe remove existing solder ( with solder wick ) and re solder. [/quote] +1 on remove old solder. Quote Link to comment Share on other sites More sharing options...
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