sunny pedaal wrote:and is there a difference in b.e. signature series and/or later versions including the latest 24k gold plated version ?
is the voyager smd or holethru soldered ?
( hope the last , in case repairs should be made in future )
sunny pedaal wrote:most professional synth-repairders in the netherlands don't agree on the easiness of repairing smd. to be more specific they state they don't repair it. ( or very limited and with great dislike, holethru is always greatly preferred ). maybe the future younger generation will make less problems of it...hope so
Voltor07 wrote:...A dual layer board is no problem to fix, but a three, four, or five layer board is non-repairable, unless a dead component is on one of the outer surfaces.
thealien666 wrote:Voltor07 wrote:...A dual layer board is no problem to fix, but a three, four, or five layer board is non-repairable, unless a dead component is on one of the outer surfaces.
BTW, on multi-layered boards, there are no components on inside layers (to my knowledge). Only traces that connect to different parts of the the two surface layers where SMD components are located.
The main reason for some technicians being reluctant to fix SMD devices, is the specialized tooling required and the high precision also required in manipulation. But most importantly,the increased cost (mostly in hourly rate) in fixing these. And also the occasional costlier custom designed replacement parts (PLA and mask rom DSP) in hybrid systems. It's a fact of life that, what synth companies save in design and manufacturing costs by using SMD, will be lost in trying to repair such technology. It's, more often than not, less costly to simply replace a whole board than trying to diagnose and repair it, especially complex multi-layer ones.
Sometimes, using JTAG, it's possible to quickly and easily find faults on SMD multi-layer boards (mostly bad solder joints or broken traces or interconnect between layers), but again that requires specialized diagnostic equipment and documentation.
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