3M Overhead Projector 用户手册

3M™ Overhead Projector 1800 

Illustrated Parts Breakdown 

 

© 3M 2004

 

15 

 

 

1A 

78-8120-8570-8 

Top Cover Module, Basic (U.S) 

1 

1B 

78-8120-8571-6 

Top Cover Module with Lamp Changer and Clock (U.S.) 

1 

1C 

78-8120-8568-2 

Top Cover Module, Basic (A4) 

1 

1D 

78-8120-8569-0 

Top Cover Module with Lamp Changer and Clock (A4) 

1 

2 78-8120-4155-2 

Glass, 

Stage 

1 

3 78-8005-0481-9 

Spring, 

Compression 

1 

4 

78-8079-8768-6 

Latch, Top Cover 

1 

5 78-8120-3114-0 

Retainer, 

Fresnel 

2 

6A 

78-8120-8502-1 

Fresnel, Dual Element (inverted singlet) – 175.3 mm 

1 

6B 

78-8120-8504-7 

Fresnel, Dual Element – 182.5 mm 

1 

7A 

78-8120-3138-9 

Button, On/Off, Red 

1 

7B 

78-8120-3151-2 

Button, On/Off, Blue 

1 

8A 

78-8120-8563-3 

On/Off Button Kit, Red  (Not shown) 

1 

8B 

78-8120-8564-1 

On/Off Button Kit, Blue  (Not shown) 

1 

Note:  Top covers prior to S/N 18023074 have taped-in 
stage glass.  If the stage glass needs repair, a new top cover 
must be ordered.  Refer to 1800 Technical Bulletin #6.