Synthesis Technology MOTM-510 The WaveWarper, Assembly Instructions & Owner'S Manual

Page: 8 / 26

SYNTHESIS TECHNOLOGY PAGE 8
MOTM-510 ASSEMBLY 7/11/04
WWW.SYNTHTECH.COM
pc board, Pin 1 is a SQUARE solder pad with the ‘1’ printed above it. The IC outline on
the bard also has a ‘notch’ pointing “up”, which matches the ‘notch’ in the IC socket. So,
solder the IC socket into U4 with the notch UP. The pins are small diameter, so you will
have to hold the socket flat against the pc board while soldering the first 2 or 3 pins.
DO
NOT BEND ANY OF THE IC SOCKET PINS OVER ON THE PC BOARD!
Apply a small bit of solder to the via holes. These are the small pads that allow traces to
“change sides” of the pc board. DO NOT SOLDER PADS FOR THE REMAINING
COMPONENTS!! As an example, if you look at VR2, you will see traces, surrounded by
copper, with 2 via holes above VR2 and another via hole to the left of VR2. A ‘hidden’
one (hard to see) is directly above the letter ‘P’ in the “MOTM-510 WAVEWARPER”
lettering near the top edge of the pc board.
PART #5: FINAL BOARD WASH & INSPECTION
Verify all the parts are in the correct locations. Make sure all of the ICs are pointing the
same direction.
Inspect the solder joints. Any solder shorts? Too much solder? Missing joints?
Wash the board under warm water. Scrub gently. Allow to dry for at least 2 hours!
THIS IS A GOOD STOPPING PLACE TO REST OR PUT THE KIT AWAY UNTIL
LATER.
You are now finished with the Organic flux solder. All soldering past this point is
using the No-Clean solder. You do not have to wash the board anymore.
PART #6: FINISHING THE PCB
You will now solder in the remaining parts on the pcb in preparation for wiring to the front
panel. USE THE NO-CLEAN SOLDER. BE CAREFUL!
Locate the Spectrol pots. These have black bodies (the Bourns pots have blue bodies).
Look carefully at the lettering: 3 pots will be marked 149-71104 and 1 pot will be
marked 148-71101.
The ‘148’ pot goes into VR4! The 3 ‘149’ pots go into VR1, VR2
and VR3. Insert the leads so that the pot sita all the way down, resting on the pc board
with the shafts facing “outward”. Solder and trim the leads.
Locate the 5 pieces of RG-174 black coax cable. Again, note that one end has
longer wires stripped than the other. The short ends will go in the pc board in
locations J1, J3, J5, J7 and J8. Look at the pc board. Notice that in the coax positions,
there is a large hole pad (lower pad) and a smaller pad (top hole). The braided wire is
soldered into the larger hole. The smaller, inner conductor goes in the top hole. BE
SURE THE
SHORTER BRAIDED END GOES INTO THE PC BOARD.