R5
(150R)
(b
ro
w
n
,
g
re
e
n
,
b
ro
w
n
,
g
o
ld
)
R4
(470R)
(y
e
llo
w
,
p
u
rp
le
,
b
ro
w
n
,
g
o
ld
)
C1
(10u)
Battery
snap
www.madlab.org
©
MadLab
®
2017
F
UNKY
D
RUMMER
Identify the different components using the spotter chart.
1
Fit and solder all the resistors (R1 to R11) to the circuit board. Identify the
resistors by the coloured stripes on the body. They can be fitted either way
around.
2
Solder the ferrite bead (FERRITE) either way around.
5
Solder the chip sockets (IC1 and IC2) matching the notch in the socket to
the notch on the board.
Do not solder the chips directly to the board.
3
Solder the pushbuttons (S1 to S6) either way around.
7
Solder the transistor (TR1) matching the half-circle shape of the transistor
to the half-circle shape on the board.
8
Fit and solder the electrolytic capacitors (C1, C2, C3 and C8) to the board
putting the shorter leg into the hole with the – sign. The shorter leg also
has a stripe on the side of the body. Also solder the tantalum capacitor
(C6) so that the shorter leg is by the – sign. Fit and solder the remaining
ceramic (C4, C5 and C9) and polyester (C7) capacitors either way around.
4
Solder the jack socket (AUDIO).
10
Bend the legs of the regulator (REG) at right angles and solder it such
that the metal heatsink is flat on the board and the side with the writing
is facing upwards.
9
programmable rhythm machine with 40 drum sounds
MLP114
1/9/17
REG
(LD33V)
IC2 socket
continued overleaf
Solder the light (LED) to the board putting the shorter leg into the hole
with the line. The shorter leg also has a flattened edge on the rim.
6
IC2
(dsPIC33E)
R2
(10k)
(b
ro
w
n
,
b
la
c
k
,
o
ra
n
g
e
,
g
o
ld
)
C8
(220u)
C3
(220u)
C7
(100n)
AUDIO
IC1 socket
IC1
(MCP4921)
LED
(red)
TR1
(ZTX689B)
11
Solder the power socket (POWER). (You might find it easier to solder
the largest hole if you use a small piece of wire as a bridge.) Optionally
also fit the PP3 battery snap (BATTERY). Push the battery snap leads
up through the larger holes in the board from the metal side of the
board. Fit the metal tip of the red lead into the B hole and
the metal tip of the black lead into the BATTERY – hole. Solder the
metal tips to the tracks on the board then pull the wire loops back.
C2
(100u)
POWER
C6
(10u)
S2
S1
S3
S4
S5
S6
C9
(100n)
C4
(100n)
C5
(100n)
Carefully bend the legs of the chips inwards a little with your fingers.
Fit the chips into their sockets matching the small notch in the chip to
the notch in the socket.
12
Attach the self-adhesive rubber feet around the edge of the board.
13
R1
(10k)
(b
ro
w
n
,
b
la
c
k
,
o
ra
n
g
e
,
g
o
ld
)
R11
(1k)
(b
ro
w
n
,
b
la
c
k
,
re
d
,
g
o
ld
)
R10
(1k)
(b
ro
w
n
,
b
la
c
k
,
re
d
,
g
o
ld
)
R9
(1k)
(b
ro
w
n
,
b
la
c
k
,
re
d
,
g
o
ld
)
R8
(1k)
(b
ro
w
n
,
b
la
c
k
,
re
d
,
g
o
ld
)
R7
(10k)
(b
ro
w
n
,
b
la
c
k
,
o
ra
n
g
e
,
g
o
ld
)
R6
(47R)
(y
e
llo
w
,
p
u
rp
le
,
b
la
c
k
,
g
o
ld
)
R3
(100R)
(b
ro
w
n
,
b
la
c
k
,
b
ro
w
n
,
g
o
ld
)
FERRITE
