MIDI THING V1 - ASSEMBLY GUIDE – Rev. Feb 17
component side, and the nut on the opposite.
FRONT PANEL COMPONENTS MOUNTING TIPS:
Now we will proceed to mount the jacks, MIDI connector, switch and LEDs. This part of the assembly is CRITICAL. Please
take your time and read the following instructions carefully.
These components must
NOT
be soldered until they are placed on the PCB and fully attached to the front panel.
There are two reasons for this:
•
The height of the panel components are not all the same. Because of this, if not attached properly before
soldering, they will not stay properly seated against the panel. This might cause mechanical stress reducing
their life expectancy and in the worst case cause them to break.
•
The second reason is that it is very difficult to align the components to the holes if the panel is not positioned
prior to soldering. In the case of the LEDs, they are almost impossible to set to the correct height without
reference to the front panel.
LEDs
Place the LEDs onto the PCB minding, their polarity, but
don't solder them
until the front panel is in place. This is
the only way to solder them in the right position.
The long leg is the positive and the short the negative. On the PCB the square pad indicates the negative side and
there is a + symbol to indicate the positive.
Qty
Name on PCB
8
D1, D2, D3, D4, D5, D6, D7, D8
MINI-JACKS
Place all the mini-jacks onto the PCB ensuring they are on the silkscreen side, but
don't solder yet
.
Caution:
the switch nut and the jack nuts look the same, but they are not equally sized and will not fit in each
others' thread, so make sure to keep them separate!
PUSH BUTTON
Remove the nut and the washer of the push button. Place the push button on the PCB where the silkscreen indicates
but
don't solder it yet.
FRONT PANEL
Attach the
front panel
adjusting the parts one by one if necessary until they fit. At this point a pair of fine tweezers
can be helpful.
To finish:
- Secure the parts to the panel in this order: A)
Mini-jacks
B)
Push button.
- Ensuring all of the above parts are flush with the panel then
you can finally
solder
them!
WARNING:
Do not forget to cut the legs of the push button switch and MIDI connector legs after soldering as they
might touch components on the main board and damage the module.
- Next, adjust the
LEDs
so that they are flush with the panel and solder them.
- Place the
MIDI connector
through the front of the panel and solder in place.
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