Chapter 1. FUNCTIONING

TM 11-6720-239-35

CHAPTER 1

FUNCTIONING

Section l.

GENERAL

12. Indexes of Publications

1-1. Scope

a. Refer to the latest issue of DA Pam 310-4 to

a. This manual covers direct support, general

determine whether there are new editions,

support, and depot maintenance for Camera Set,

changes, or additional publications pertaining to

Still Picture KS101A. It includes instructions

the equipment.

appropriate to direct support, general support,

and depot maintenance for troubleshooting, test-

b. Refer to the latest issue of DA Pam 3107 to

ing, and repairing the equipment. It also lists

determine whether there are modification work

tools, materials, and test equipment authorized

orders (MWO'S) pertaining to the equipment.

for direct support, general support, and depot

maintenance. Detailed functions of the camera set

13. Reporting of Equipment Publication

are covered in the theory section.

Improvements

The reporting of errors, omissions, and recom-

b. The complete technical manual for this

mendations for improving this publication by the

camera set includes TM 11672023912.

individual user is encouraged. Reports should be

c. Appendix B current as of 10 August 1970.

submitted on DA Form 2028 (Recommended

Changes to Publications) and forwarded direct to

NOTE

Commanding General, U.S. Army Electronics

Command, ATTN: AMSELMENMPAD, Fort

For applicable forms and records, refer

Monmouth, N.J., 07703.

to paragraph 1-3, TM 11-6720239-12.

FUNCTIONING MECHANISMS

Section Il.

of this chapter. The mechanical components are

1-4. General

covered in the remainder of this section.

The camera mechanisms include the lens and

shutter assembly and the focusing mechanism

1-6. Function of Shutter Assembly Manual

(coupling between shutter and finder assembly).

Controls

Paragraphs 15 through 18 describe the func-

a. Film Speed Control and Lighting Selector

tioning of the camera mechanisms and flash oper-

Control (fig. 11). The FILM SPEED Control

ation. Paragraphs 19 and 110 describe the func-

(aperture wheel) and the lighting selector control

tioning of the finder assembly and the electrical

set the aperture opening (on the aperture wheel)

circuits.

and the timing circuit (determining the operating

limits of the photocell), respectively. The photo-

1-5. Shutter Assembly

cell's operaing limits are controlled by the selected

timing network that is in series with the photo-

The shutter assembly contains both electronic cir-

cell. The photocell, however, controls the shutter

cuits and mechanical components. The electronic

speed by varying the resistance of the timing

circuits adjust the shutter speed in accordance

circuit. The resistivity of the photocell is con-

with the selected film speed and aperture opening,

trolled by the light reflected upon it.

and the intensity of the light from the subject

striking the photocell. The functional operation of

For each four of the FILM SPEED dial settings

the electronic circuits are discussed in section III

of the aperture wheel a bright (large) or dull

1-1