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5
3M 9800 Operator’s Guide
Product Description and Machine Characteristics
The 3M
t
Overhead Projector 9800 is designed to be
safe, efficient and easy to use. It features an open head,
triplet projection lens with 1.3X magnifier, high output
lamp, lamp changer, lamp brightness control, external
colour tuning adjustment, unswitched power outlets for
accessories, and lamp interrupt switches to prevent
damage.
Refer to the illustration below to identify the external
machine characteristics for the 9800.
7
2
1
3
4
5
6
8
9
10
12
11
13
17
24
16
15
22
18
20a
20c
14
19
21
20b
23
Part Identification List
1. Open Projection Head
2. Projection Mirror
3. Triplet Projection Lens
4. 1.3X Magnifier Lens
5. Arm
6. Focus Knob
7. Post
8. Post Latch
9. Post Cradle
10. Carrying Handle
11. Accessory Outlets (design varies by country)
12. Cord Wrap
13. Circuit Breaker (5 amps)
14. Power Cord
15. Stage Glass
16. Top Cover
17. Top Cover Release Latch (with interlock)
18. Colour Tuning Adjustment (left side of machine)
19. Internal Voltage Switch (raise top cover to access)
20. Control Panel Door (with lamp interrupt switch)
a.
Lamp Changer Dial
b. High/Low Lamp Brightness Switch
c.
Lamp “Burned Out” or “Missing” Indicator
21. Pencil Holder
22. On/Off Power Switch
23. Machine Identification Plate
24. Internal Lamp Voltage Protector (raise top cover to
access)
