MODEL 2100 OVERHEAD PROJECTOR

TROUBLESHOOTING (continued)

SYMPTOM

 

CHECK

 

CAUSE/SOLUTIONS

 

 

 

 

 

Fan motor does not rotate, but

-

Is anything blocking rotation of

-

Loose or broken wire

lamp does energize.

 

fan motor?

 

connection to motor.

 

 

 

-

Defective fan motor.

 

 

 

 

 

Both lamps of units with lamp

-

Wires crossed and touching?

-

Defective lamp sensing switch.

changer energize at once.

-

Lamp changer switch?

 

 

 

 

 

 

 

Projector does not operate

-

Projector plugged in?

-

Defective power cord.

when power switch is

-

Top Cover all the way down?

-

Defective Interlock Switch.

depressed.

-

Interlock Switch functioning?

-

Replace Fuse.

 

-

Fuse (if so equipped).

-

Broken Wire

 

 

 

 

 

On dual lamp projectors,

-

Loose tension cable.

-

Tighten cable. (See Section 4,

position of lamp socket does

 

 

 

adjustments)

not change when lamp

 

 

 

 

changer control is moved.

 

 

 

 

 

 

 

 

 

Top Cover Assembly does not

-

Interlock switch out of

-

Align interlock switch.

close completely.

 

alignment?

-

Disconnected or broken latch

 

-

Cover latch movement is

 

return spring.

 

 

restricted?

 

 

 

 

 

 

 

Lamps burn out.

-

High voltage

-

Install Resistor Kit or replace

 

 

 

 

transformer or change

 

 

 

 

transformer tap.

 

 

 

 

 

Field Kits Available

Focus Knob Slipping

If the projector is below SN401987, the knob must also be replaced.

Resistor Kit (120V) Base Rail Kit (for broken base rails on lamp module)

78-8054-1613-4

Lt. Grey

78-8054-1614-2

Charcoal

78-8054-1315-6

 

78-8054-1443-6

 

78-8054-1615-9

Tech Service

In the U.S & Canada

Technical Support Hotline - 1-800-328-1371

7:30 - 5:30 CST

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3M 2100 manual Troubleshooting, Field Kits Available