17
AC Ground Buss
This bare ground wire serves to connect the chas-
sis plate and the power transformer to the safety
ground wire in your IEC power cord. In the event of
an electrical short to the chassis or power trans-
former case the current will be diverted to the
safety ground of your AC mains wiring.
( ) Begin by cutting a 2-1/2”(63mm)pieceofbare
buss wire. Attach one end to terminal E of the IEC
power entry socket. Then lace the wire through the
safety ground lug, taking one turn through the lug.
Finally, attach the free end of the wire to terminal
16L. Solder all three connections and trim any ex-
cess wire ends from terminal 16 and terminal E.
Be careful not to melt the plastic body of the power
entry module.
AC Mains and power switch wiring
The standard procedure for AC mains wiring in the
US is to connect the neutral wire to one end of the
power transformer primary, and to connect the live
wire to a fuse, which is then connected to a power
switch, which then connects to the other end of the
power transformer primary.
( ) Before you begin take a bit of fine sandpaper,
steel wool, or an X-acto knife and gently scrub or
scrape the terminals on the power switch. This will
allow the solder to flow more easily.
()Cutapieceofblackwire2”(50mm)longand
stripbothendsback1/4”(6mm).Attachandsolderoneendoftheblackwiretothe“center”terminal
of the power switch. Attach and solder the other end to
terminal L of the power entry socket. Carefully solder
each terminal, being careful not to melt the plastic body of
the switch. If you do melt the switch, contact us at 360-
697-1936 for a free replacement switch.
()Cuta3”(75mm)pieceofblackwire,stripbothends
1/4”(6mm).Attachandsolderoneendtotheotherpower
switch terminal. Route the wire under the adjacent termi-
nal strip and attach and solder the free end to power
transformer terminal1.
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