3M MP8745 manual Troubleshooting, Symptom/Solution Table

Page 24

Section 7: Troubleshooting

7.1 Symptom/Solution Table

Symptom

Cause

Solution

ENGLISH

 

 

 

 

 

Power cannot be

• The Main power is not turned on.

• Turn the MAIN POWER switch on.

 

turned on.

• The power cord is disconnected.

• Insert the power cord into an AC socket.

 

 

• 60 seconds have not elapsed since

• Wait 60 seconds before turning on power.

 

 

the power was turned off.

 

 

 

 

 

 

No picture and sound.

• The setting of the input source is not

• Set the correct input using the input select button of

 

 

correct.

the projector or the remote control.

 

 

• RGB/Video/Audio wiring to projector is

• Connect the cable to correct input/output source.

 

 

not correct.

 

 

 

 

 

 

Sound is heard with no

• RGB/Video/Audio wiring to projector

• Connect the cable to correct input/output source.

 

picture.

is not correct.

 

 

 

• The brightness is set fully to dark.

• Press the MENU button and increase BRIGHTNESS.

 

 

• Lens cap is on.

• Remove lens cap.

 

 

 

 

 

Picture is displayed with

• Audio wiring to projector is not correct.

• Connect the cable to correct input/output source.

 

no sound.

• The volume is set to minimum.

• Press the VOL button to increase Volume.

 

 

• The unit is muted.

• Press the MUTE button.

 

 

• PinP is on and audio is switched

• Press VOLUME and move DISC PAD to switch to

 

 

to VIDEO mode.

audio input.

 

 

 

 

 

Color is weak and tint is

• The color and tint have been adjusted

• Adjust the color and tint correctly.

 

incorrect.

incorrectly.

 

 

 

 

 

 

Picture is dark.

• The brightness and contrast has not

• Adjust the brightness and contrast correctly.

 

 

been adjusted correctly.

 

 

 

• The lamp needs to be replaced.

• Replace the lamp with a new one.

 

 

 

 

 

Picture is not clear

• Projector is out of focus.

• Adjust the focus and H PHASE.

 

 

 

 

 

LAMP indicator lights

• Lamp will not ignite.

• Turn off power and let cool for 20 minutes, then restart.

 

red.

 

• If problem persists call your dealer.

 

 

 

 

 

LAMP indicator blinks

• Air filter door on bottom of case

• Ensure air filter door is closed.

 

red.

is open.

 

 

 

 

 

 

TEMP indicator lights

• Temperature inside projector

• Clear blocked ventilation holes.

 

red.

is too hot.

• Clean air filter.

 

 

 

 

 

© 3M 1999

3M Multimedia Projector MP8745

23

Image 24
Contents MP8745 Multimedia Projector MP8745 Table of Contents 3M Multimedia Projector MP8745 Safeguards Intended USEU T I O N Warranty Limited WarrantyContents of Shipping Box Optional AccessoriesUnpack Keep Your Packing MaterialsMachine Characteristics Product DescriptionPart Identification List Identifying MP8745 PartsSystem Setup Connecting Various Equipment VCRSystem Setup Connecting Various Equipment Remote Control Transmitter Identification InputBasic Operations Projector StartupProjector Shutdown Adjustments and Functions How To Use Height Adjustment FeetPlug & Play Function Freeze FunctionMagnify Function Picture-in-PictureFactory Default Setting Menu NavigationSetup Input Image 10 OPT OPT. sub-menu allows you to control communication function Maintenance Cleaning the Air FilterReset Lamp Hours LampLamp Display Lamp Operation HoursReplacing the Lamp Lamp ModuleTroubleshooting Symptom/Solution TableMessage/Solution Table Error Message Displays Cause SolutionAccessories Service InformationAccessories How to OrderTable of Contents Technical SpecificationsAppendix Technical Information Dimensions Projector-to-Screen Distance Screen Size Distance to Screen WidthConnection to the Video Signal Terminal Connection to the RGB Signal TerminalExample of computer signal Indicator Status Power Lamp Temp Meaning Remedy IndicatorConnection to the Control Signal Terminal Mouse emulationRS-232 Control Cable not included with basic packout Data +DATA GND Serial Command Codes Serial Command Code Table Serial Command Code Table Important Notice