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Document revision 1.1 – Last modification : 07/01/15
MP57 Assembly guide
MP57 Assembly guideMP57 Assembly guide
MP57 Assembly guide
26.
26.26.
26. Input transformer – SK5468 Version 1.
Input transformer – SK5468 Version 1.Input transformer – SK5468 Version 1.
Input transformer – SK5468 Version 1.
Check the version number of the SK5468 PCB. If it is version 1. ,
insert the 90°, 1 pins headers into the SK5468 PCB, long tails
first, into the holes. Solder one pin, adjust the position then solder
the other pins. Cut flush. Do the same for both SK5468's.
Warning
WarningWarning
Warning : the pin headers must sit perfectly
perpendicular to the PCB surface for a good matching with
the main PCB.
Remove the 2 screws from the transformer pin side and
place 2 nylon washers on the holes.
Insert one SK5468 PCB on top of the transformer,
checking the pins number correspondence. Assemble with
the 2 screws. Solder the transformer pins.
Place the second SK5468 PCB on the other side of
the transformer, white text hidden. Assemble with the
last 2 provided screws.
Insert the transformer into the main PCB and solder
the pins.
27.
27.27.
27. Visual check
Visual checkVisual check
Visual check
At this point, brush the solder side with a hard tooth brush to remove any remaining solder bits.
Make a full visual check. Any missing component on the board ? Any remaining component in the box ?
When everything looks correct, proceed with the frame assembly.
28.
28.28.
28. Frame assembly
Frame assemblyFrame assembly
Frame assembly
Insert 4 M x 5mm countersunk screws into the side plate for the output transformer assembly. On each
screw, insert 1 shakeproof washer, one metal M washer and one M nut, in this order. Tighten.
Assemble the front plate and the side plate with 2 M x6mm countersunk black screws.
Warning
WarningWarning
Warning : Do not confuse the M x6mm countersunk black screws with the #4-40 /8" black screw that
are used to attach the module in the lunchbox.
Copyright ©2010 SoundSkulptor
Plate
washer
nut
shakeproof
M x 5 screw