Synthesis Technology MOTM-850, Owner'S Manual

Page: 11 / 21

SYNTHESIS TECHNOLOGY PAGE 11
MOTM-850 ASSEMBLY 10/25/01
WWW.SYNTHTECH.COM
Press the LED snugly to the panel. Now, cut off half of the LED’s leads (they are too
long!). Place the 2 pieces of heat-shrink tubing down over the Red/Black wires. With
a pair of chain-nosed pliers, make a small ‘J’ hook in each LED lead. Then, make ‘J’
hooks on the Red and Black wires. Mate the Red wire to the Anode lead, and solder.
Do the same with the Black lead and the Cathode. After waiting 20 seconds for
cooling, slip the heat-shrink tubing all the way down until they touch the back of the
LED case. Use a heat gun on LOW setting to shrink the tubing. You can also use the
soldering iron, hold it very close BUT NOT TOUCHING the tubing.
Now you will solder to the 4 jacks. Each jack has 3 lugs: from the rear we will refer
to them as LEFT, TOP, BOTTOM (for J1) and BEVELED. The TOP lug is for the
switched contact: this is a NC (normally closed) contact that is opened when a plug
is inserted. In all 3 cases, this lug is NOT USED.
Solder the coax in J4 to the CV OUT jack. The braid goes to the BEVELED lug. The
inner conductor goes to the LEFT lug. This is true of ALL coax wires. Use enough
solder to completely fill in the hole on the lug.
Solder the coax in J2 to the MIX IN jack.
Solder the coax in J3 to the GATE jack.
Solder the orange/white/gray wire in J1 to the PEDAL jack. The Orange wire goes to
the BOTTOM lug, the White wire goes to the LEFT lug and the gray wire goes to the
BEVELED lug.
Rotate all of the front panel pots fully counter-clockwise. Locate the KNOBS .
Notice each knob has a white line on it. Place the knob on the pot shaft,
align the white line to the ‘0’ tick mark, and tighten the hex screw. The silver
part of the knob has a protective clear plastic overlay that can be removed if
desired. Gently rub with your fingernail across it and it will peel off. Use the extra
wire tie to “bundle” the coax wires
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CONGRATULATIONS! YOU HAVE FINISHED BUILDING THE MOTM-850!
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All that’s left to do is test it! But before we do, please read the following Theory of
Operation.