Rousing.

TM 11-2323

Paragraph 5. Make the following changes :

Heading (page 3 of C2). Change "(figs. 2), 2.1, 3, 4, and 5)" to:

(fig. 2, 2.1, 2.2, 3, 4, 7, and 7.1).

Subparagraph a (page 3 of C2). Delete subparagraph a and

substitute :

a. Rousing.

(1) Two shelves are provided for the PH-637/PFP, the PH-

6 3 7 B / P F P , and the PH-637C/PFP: the one at the front is

used as an armrest, and the one at the left side is used to hold

copy, notes, and other lecture materials. T h e P H - 6 3 7 A / P F P

has a shelf at the left side and a hinged projection-stage cover

which extends out over the front of the projector to form a

shelf.

(2) A door at the rear, held in the closed position by a knurled

captive screw, opens to expose a reflector and projection lamp

a n d , i n t h e P H - 6 3 7 C / P F P , a heat-absorbing filter located

in front of the project ion lamp.

(3) A door at the left side of the PH-637,/PFP, the PH-637A/

PFP, and the PH-637B/PFP gives access to a glass con-

denser lens, a rear surface mirror, and the bottom of a Fresnel

condenser lens and, in the PH-637B/PFP, a heat-absorbing

filter located in front of the glass condenser lens. (On the

P H - 6 3 7 C / P F P , access to the rear surface mirror, the glass

condenser lens, and the bottom of the Fresnel lens

is gained by raising the projection stage from the front.)

(4) A blower, which cools the projection lamp when it is turned

on, is located in the lower front part of the housing.

(5) An on-off switch and a receptacle connector for the power

cable are on the front of the housing of the PH-637/PFP

and the PH-637A/PFP. On the PH-637B/PFP and the

PH-637C/PFP, the power cord is permanently connected.

(6) On top of the housing of the PH-637/PFP, the PH-637A/

P F P , a n d t h e P H - 6 3 7 B / P F P , are the project you stage and

a 1¼-inch hole through which the support post is inserted.

On top of the h o u s i n g o f t h e P H - 6 3 7 C / P F P a r e t h e p r o -

jection stage and a permanently attached yoke through which

the support post is inserted.