mended minimum space for installation is 15 inches
(38.1 cm) deep, 17 inches (43.2 cm) wide, and 4 ½ in-
ches (11.4 cm) high.
To install the instrument in a Mcintosh cabinet,
follow the instructions that are enclosed with the
cabinet. For any other type of installation follow
these instructions:
1. Open the carton and remove the PANLOC
brackets, hardware package, and mounting template
from the carton. Remove the C 504 from its plastic
bag and place it upside down on the shipping pallet;
unscrew the four plastic feet from the bottom of the
chassis.
2. Mark the cabinet panel.
Place the mounting template in the position on the
cabinet panel where the instrument is to be installed,
and tape it in place. The broken lines that represent
the outline of the rectangular cutout also represent
the outside dimensions of the chassis. Make sure
these lines clear shelves, partitions, or any equip-
ment. With the template in place, first mark the six A
and B holes and the four small holes that locate the
corners of the cutout. Then, join the four corner mark-
ings with pencil lines, using the edge of the template
as a straightedge.
3. Drill Holes.
Use a drill with a 3/16 inch bit held perpendicular to
the panel and drill the six A and B holes. Then, using a
drill bit slightly wider than the tip of your saw blade,
drill one hole at each of two diagonally opposite cor-
ners. The holes should barely touch the inside edge of
the penciled outline.
Before taking the next step, make
sure that the six A and B holes have been drilled.
4. Saw the Panel Cutout.
Saw carefully on the inside of the penciled lines. First
make the two long cuts and then the two short cuts.
After the rectangular opening has been cut out, use a
file to square the corners and smooth any ir-
regularities in the cut edges.
The PANLOC system of installing equipment con-
veniently and securely is a product of Mcintosh
research. By depressing the two PANLOC buttons on
the front panel, the instrument can be locked firmly in
place or it can be unlocked so that the chassis can
slide forward, giving you easy access to the top and
rear panels.
The trouble-free life of an electronic instrument is
greatly extended by providing sufficient ventilation to
prevent the buildup of high internal temperatures that
cause deterioration. Allow enough clearance so that
cool air can enter at the bottom of the cabinet and be
vented from the top. With adequate ventilation the in-
strument can be mounted in any position. The recom-
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