McIntosh MR66 Operations Instructions download pdf (Page 9)

CUTTING THE FRONT PANEL

The PANEL CUTOUT TEMPLATE supplied

with your tuner is a full size layout of the front

panel cutout and mounting holes. The tem-

plate is positioned accurately on the cabinet

front panel by drilling two locating holes

through from the backside of the panel. All

measurements for panel cutout location are

made on the backside of the panel. One of

the two end mounting strips supplied with

the tuner (3½ inches by ½ inch) makes a

convenient measuring tool for determining

the exact positions of the locating holes.

Determine the exact center of the pro-

posed panel cutout area. Scribe a vertical

line at the center, from the top surface of the

mounting shelf to the top of the panel as

shown in "A" of Figure 7. Using one of the

mounting strips as a measuring tool, scribe a

horizontal line 3½ inches above the top

surface of the mounting shelf as shown in

"B" of Figure 7. Again using the mounting

strip, mark a point on the horizontal line 3½

inches to the left of the center line. Mark a

second point 3½ inches to the right of the

center line. These two points should be 7

inches apart, 3½ inches above the mounting

shelf and 3½ inches to each side of the

vertical center line. See "C"of Figure 7. Drill

inch diameter hole through the back of

the panel at each of the two points. Make

certain that you hold the drill perpendicular

to the panel so the holes will be accurately

located on the front side of the panel.

VERTICAL CENTER LINE

Positions "A" to "C" show the location of the

vertical center line, the use of the measuring

tool (mounting strip) to locate the horizontal

center line, and how to measure off the two

points to the right and left of the vertical center

line.

Using the previously drilled locating holes

for correct alignment, carefully position the

cutout template on the front panel.

Scribe the rectangular cutout on the front

panel and mark the positions of the six

mounting holes. Drill the six

inch diameter

mounting holes before cutting the panel

opening. Next cut the main panel opening. It

is important that the cutout be just within the

heavy black lines on the template.

SHELF MOUNTING

Locate the exact center of the proposed

shelf area and scribe a line from the front to

the back of the shelf. The SHELF CUTOUT

TEMPLATE is marked for front panel thick-

ness from ¼ inch to 1 inch. Fold the template

on the line that corresponds to the thickness

of the particular panel being used. Place the

folded template on the shelf, butted against

the backside of the front panel. Match the

center line on the template to the scribed

center line on the shelf. The shelf center line

should also exactly meet the vertical center

line used to make the front panel cutout.

Mark the positions of the four ¼ inch diame-

ter mounting holes. Scribe the rectangular

cutout for the ventilating hole. Drill the four

¼ inch diameter mounting holes and cut out

the rectangular ventilating hole.

INSTALLING THE MR66

Remove the four 10-32 x ¾ inch screws

holding the MR66 to the shipping board.

Save these screws since you will need them if

your cabinet shelf is ½ inch or

inch thick.

Remove the four plastic feet from the bottom

of the tuner.

The mounting hardware package includes

four 6-32 flat head screws and eight 6-32

round head screws. Two of the flat head

screws of the proper length are used to

attach the mounting strips to the cabinet

panel. Four of the round head screws of the

proper length are used to attach the tuner to

the mounting strips and the cabinet panel.

The 6-32 x ½ inch screws are used with

panels under

inch thickness. The 6-32 x

1¼ inch screws are used with panels from

inch to 1 inch thickness.

Figure 7. Front Panel Cutout Measurements.

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McIntosh MR66 Operations Instructions Page 9

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