Dukane 28A33 Instrucciones de construcción

SERVICE AND PARTS MANUAL

MODEL

28A33,28A34,28A35,

28A37,28A53,28A55

FILMSTRIP/SLIDE PROJECTOR

Original Issue

January, 1976

Rev. Feb.,

1977

DUKANE CORPORATION

AUDIO VISUAL DIVISION

ST. CHARLES, ILLINOIS

60174

FILMSTRIP/SLIDE PROJECTOR

GENERAL SPECIFICATIONS

POWER:

28A33,

28A34,

28A35,

28A53,

28A55

28A37

LENS:

28A33,

28A37,

28A53

28A34

28A35,

28A55

LAM

28A33,

28A35

28A34

28A37

28A53,

28A55

FILM:

FILM CAPACITY:

12OV.,

60 Hz.

240 V.,

50/60

Hz.

76 mm (3”) F/2.5

35 mm (1.4”) F/2.8

127 mm (5”) F/2.8

CAL 3OOW, 120 VAC.

CRT 3OOW, 120 VAC.

CXH 3OOW, 240 VAC.

DAK

5OOW,

120 VAC.

Projects standard 35mm single

frame filmstrip and film slides

with the 178-20 adaptor.

200 frames maximum.

SERVICE NOTES

Before the check out procedure begins, it is recommendedthat a complete mechanical

inspection be given to the defective unit. The following list represents a few of the leading

mechanical failures due to abusive shipping and handling.

1. Loose screws and mounting hardware.

2. Broken wires.

3. Lenses out of position.

4. Projection lamp loose in socket.

5. Focus wheel jammed.

Mechanical Test:

Insert any 35mm filmstrip into the top of the filmstrip carrier. Pushing down on the

filmstrip, advance the filmstrip by turning the advance knob counterclockwise. Use the

framing knob to frame the picture. There should be no excessive binding in the framing or

advance controls.

Turn focus knob to move lens to its maximum out position; the lens should stop and

not fall out of the unit. Next move, in the opposite direction, lens to the in position

making sure no binding occurs. If focusing knob seems to slip, make sure Item

#l-37

#3-29

is dry and free from lubrication.

Electrical Test:

Plug power cord into 120 V.,60 Hz outlet. Note: Model

28A37

requires a

240 VAC,

50/60

Hz supply. Placethe power switch

(S1)

in the “Fan "position. Only

the fan motor should operate with aminimum of mechanical noise. In the “Lamp” position

both the projector lamp and the fanmotor should operate.

Optical Test:

Install test film into projector and project an 18” picture. Note: A 12” picture

for the

28A34.

Center picture using framing lever and advance picture through several

frames. The image when focused should be essentially free of spherical or chromatic

aberrations over complete format with just one focus setting. Distortion should not exceed

l/2%&

If picture is not clear,make sure the condenser lenses (Fig. l-47, l-50 or 3-52,

3-53)

are properly seated and the lens system is relatively clean.

The aperture glass (Fig. l-548 or 3-63A) may be removed for easy cleaning. When

cleaning the lenses and aperture glass,use a lens tissue or soft line-free cloth.

PARTS AND PRICE LIST

MODELS

28A33,

28A34,

28A35

28A37

28A53,

28A55

ELECTRICAL PARTS

Fig.

All parts are shipped F.O.B. St. Charles,Illinois, and PRICES ARE SUBJECT TO CHANGE

WITHOUT NOTICE.Orders will be filled at current prices in effect at time of shipment.

Minimum billing of five dollars.

CRT. NO. PART NO. DESCRIPTION

PRICE

200-348 Power Cord

3.00

191-42 Power Cord Clamp

.10

Al 210-7 Connector

.35

A2 210-3 Connector

.14

456-97

Lamp

(28A33,

28A35)

8.15

456-98

Lamp

(28A34)

9.90

456-

128

Lamp

(28A37)

9.35

456-

158 Lamp

(28A53,

28A55)

8.30

494-

145

Motor

(28A33,

28A34,

28A35)

11.50

494-

160 Motor

(28A37)

13.50

494-162 Motor

(28A53,

28A55)

9.00

466-014-06 Lockwasher (2 required)

.02

992-833-0612 Screw (2 required)

.05

680-649 Switch 5.00

530-99-00090 Nut (Inside)

.05

466-037-09 Lockwasher

.05

530-99-00145 Nut (Outside)

.05

Fig.

MODEL

28A33,

28A34,

28A35,

28A37,

28A53,

28A55

POWER CORD

’

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