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3M



Multimedia Projector MP8670/8745/8755/8770

Adjustments

Copyright



2000, 3M IPC. All Rights Reserved.

1-15

(60) timing signal to input a 0.35V p-p , B primary
color Signal for every other line.

7.

Use

DAC-P – V.COM-B

from the adjustment Menu

to adjust Flicker to a minimum.

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Содержание MP8670l

Страница 1: ...INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE If this product is defective within the warranty period stated above your exclusive remedy sha...

Страница 2: ...Checkpoints 3 1 3 2 Power Cannot be Turned on Flowchart 3 2 3 3 Lamp Does Not Light Flowchart 3 3 3 4 No Picture RGB Only Flowchart 3 5 3 5 No Picture Video Only RGB Good Flowchart 3 6 3 6 No Picture...

Страница 3: ...e made and specific tools needed to complete each adjustment 1 2 Section Contents Machine Identification Technician Tools Cleaning LCD Panels Convergence White Balance Sample Hold Timing MP8670 8745 V...

Страница 4: ...used for all advanced adjustment procedures Use for white balance adjustments 1 4 2 Chroma Meter 3M recommends the Minolta CL100 Chroma Meter or equivalent Use for white balance adjustments 1 4 3 Phil...

Страница 5: ...emove any dust from the outside of the projection lens with a lint free cloth If dust remains on the projection image the LCD s and the air filter need to be cleaned 5 The cleaning procedure that foll...

Страница 6: ...3 The voltage settings for each input color need to be programmed into the video test generator Refer to the video test generator user s guide for further assistance 4 Turn on the MP8670 8745 and all...

Страница 7: ...or equivalent MP8670 OR Input the XGA VESA 60 cross hatch timing signal or equivalent MP8745 2 Select red and green and check convergence 3 Select blue and green and check convergence 4 Select all th...

Страница 8: ...ite balance adjustment 1 Check the convergence prior to adjusting the white balance Refer to the previous section for procedure 2 Turn on the projector and allow it to run for 10 minutes This warms up...

Страница 9: ...to display the Test Menu 3 The Menu at the right will appear 4 Under Video the following choices appear SECAM R Y SECAM B Y VI BRIGHT VI CONTRAST 5 Under C UNIF the following will appear This function...

Страница 10: ...3M Multimedia Projector MP8670 8745 8755 8770 Adjustments Copyright 2000 3M IPC All Rights Reserved 1 8 7 Under S H the following will appear 8 Under SPECIAL the following will appear...

Страница 11: ...ttern so it is most clearly visible 3 Reset S H Position the cursor on S H in the adjustment Menu and Press the RESET key Adjustment Procedure 1 Use S H S H Timing in the Adjustment Menu until the Ver...

Страница 12: ...or XGA MP8745 VESA 60 timing signal to input a 0 7V p p cross hatch signal 3 Press the AUTO button on the Remote Controller Adjustment Procedure 1 Use the SVGA MP8670 or XGA MP8745 VESA 60 timing sig...

Страница 13: ...1 Make this adjustment after completing SUB H POSI 2 Use a SVGA MP8670 or XGA MP8745 VESA 60 timing signal to input a 0 7V p p cross hatch signal 3 Use H PHASE in the Adjustment Menu to adjust the cro...

Страница 14: ...M Multimedia Projector MP8670 8745 8755 8770 Adjustments Copyright 2000 3M IPC All Rights Reserved 1 12 6 Display Ghost Test Pattern 7 Use S H GHOST G to adjust so that the Green Ghost is at a minimum...

Страница 15: ...3M Multimedia Projector MP8670 8745 8755 8770 Adjustments Copyright 2000 3M IPC All Rights Reserved 1 13 8 Display Ghost Test Pattern 9 Use S H GHOST B to adjust so that the Blue Ghost is at a minimum...

Страница 16: ...XGA MP8745 VESA 60 timing sugnal to input a 0 35V p p R primary color Signal for every other line 3 Use DAC P V COM R from the adjustment Menu to adjust Flicker to a minimum 4 Use a SVGA MP8670 or XGA...

Страница 17: ...8745 8755 8770 Adjustments Copyright 2000 3M IPC All Rights Reserved 1 15 60 timing signal to input a 0 35V p p B primary color Signal for every other line 7 Use DAC P V COM B from the adjustment Menu...

Страница 18: ...s adjustment after completing Flicker Adjustment 2 Use an SVGA MP8670 or XGA MP8745 VESA 60 timing signal to input a 0 7 V p p 16 step Gray Scale 3 Use DAC P NRSH in the adjustment menu to adjust unti...

Страница 19: ...G at 30 Lock DAC P BLACK2 GAIN G at 50 Use DAC P SUB BRIGHT G to adjust the last two of the 16 steps on the bright side so they can no longer be distinguished then come back slightly After adjusting i...

Страница 20: ...es in the center of the screen to the following X 0 280 0 005 Y 0 345 0 01 Medium brightness white level 7 Repeat steps 4through 7 as necessary to check and readjust low and medium level brightness wh...

Страница 21: ...3 1 7 10 Color Uniformity Adjustment Adjustment Preparations 1 Make this adjustment after completing the White Balance Adjustment 2 This adjustment is to assure color uniformity over the entire scree...

Страница 22: ...y color signal 50 Green 2 Measure the illumination at points No 2 and No 3 The Values should be No 2 Y2 lux No 3 Y3 lux 3 Determine which point No 2 or No 3 has the higher illumination 4 Adjust the hi...

Страница 23: ...0 6 4 8 2 1 3 7 5 9 V 6 V 3 V 3 V 6 H 6 H 6 H 3 H 3 23 24 22 14 30 29 16 28 31 17 32 33 15 25 27 26 20 12 13 21 11 19 18 10 6 4 8 2 1 3 7 5 9 V 6 V 3 V 3 V 6 H 6 H 6 H 3 H 3 7 The next adjustments wil...

Страница 24: ...H 6 H 6 H 3 H 3 23 24 22 14 30 29 16 28 31 17 32 33 15 25 27 26 20 12 13 21 11 19 18 10 6 4 8 2 1 3 7 5 9 V 6 V 3 V 3 V 6 H 6 H 6 H 3 H 3 10 The next adjustments will be to balance the color uniformi...

Страница 25: ...V 3 V 3 V 6 H 6 H 6 H 3 H 3 23 24 22 14 30 29 16 28 31 17 32 33 15 25 27 26 20 12 13 21 11 19 18 10 6 4 8 2 1 3 7 5 9 V 6 V 3 V 3 V 6 H 6 H 6 H 3 H 3 14 The next adjustments will be to balance the col...

Страница 26: ...H 6 H 6 H 3 H 3 23 24 22 14 30 29 16 28 31 17 32 33 15 25 27 26 20 12 13 21 11 19 18 10 6 4 8 2 1 3 7 5 9 V 6 V 3 V 3 V 6 H 6 H 6 H 3 H 3 16 The next adjustments will be to balance the color uniformi...

Страница 27: ...ectrical shocks unplug projector power cord before performing any maintenance to electrical components To avoid burns to fingers allow projector lamp and internal projector components to cool off prio...

Страница 28: ...to cool off prior to lamp removal or disassembly Remove the top cover to access the internal projector components 1 Remove one 1 screw on back of projector Note If equipped remove three 3 screws secur...

Страница 29: ...0 Disassembly Reassembly Copyright 2000 3M IPC All Rights Reserved 2 3 7 6 6 Carefully lift front of top cover to the open position 7 Remove ribbon cable at circuit board and release wire from plastic...

Страница 30: ...assembly 9 Remove six 6 cable wire connectors 10 Remove five 5 cable wire connectors Note Some of these wire connectors are on the underside of the circuit board 11 Remove one 1 ground wire screw 12 R...

Страница 31: ...ming any maintenance to electrical components To avoid burns to fingers allow projector lamp and internal projector components to cool off prior to lamp removal or disassembly Remove top cover and mai...

Страница 32: ...urns to fingers allow projector lamp and internal projector components to cool off prior to lamp removal or disassembly Remove top cover and main PWB board 1 Release three 3 ribbon connectors Note Sli...

Страница 33: ...nd internal projector components to cool off prior to lamp removal or disassembly Remove top cover main PWB board and driver PWB board 1 Remove four 4 silver screws securing RGB input board to side of...

Страница 34: ...electrical components To avoid burns to fingers allow projector lamp and internal projector components to cool off prior to lamp removal or disassembly Remove top cover main board drive board ballast...

Страница 35: ...llow projector lamp and internal projector components to cool off prior to lamp removal or disassembly Remove top cover main board drive board ballast and DC power fan 1 Remove two 2 screws securing f...

Страница 36: ...lectrical components To avoid burns to fingers allow projector lamp and internal projector components to cool off prior to lamp removal or disassembly 1 Remove two 2 screws securing bottom of ballast...

Страница 37: ...tenance to electrical components To avoid burns to fingers allow projector lamp and internal projector components to cool off prior to lamp removal or disassembly Remove top cover main board drive boa...

Страница 38: ...intenance to electrical components To avoid burns to fingers allow projector lamp and internal projector components to cool off prior to lamp removal or disassembly Remove top cover and main PWB board...

Страница 39: ...ug projector power cord before performing any maintenance to electrical components To avoid burns to fingers allow projector lamp and internal projector components to cool off prior to lamp removal or...

Страница 40: ...ght 2000 3M IPC All Rights Reserved 3 1 3 Troubleshooting This section provides flowcharts to aid in troubleshooting the 3M MP8670 8745 Multimedia Projector 3 1 Troubleshooting Checkpoints The followi...

Страница 41: ...n the Main PWB at Standby Mode Measure Voltage at Pin 28 of EDI1 on the Main PWB at Standby Mode Power Unit Circuit Fuse Filter PWB Disconnect ETEP from Main PWB Retry Turn On Main PWB Temperature PWB...

Страница 42: ...uit Short between Pin 1 and 2 of ELC1 on the Main PWB and Try again Measure Voltage at the CHK0082 EDS1 on the Main PWB Standby Mode Set the Lamp Cover LIMIT SWITCH LAMP DOOR What is the State of LAMP...

Страница 43: ...P Indicator Is Pin 1 of EBAR on the Main PWB set to H Main PWB No Power Unit Ballast Yes H 5V Retry after Shorting between Pin 1 and 3 of EBAF on the Main PWB and Retry Short between Pin 1 and 3 of EI...

Страница 44: ...Is the 1 2 Selected Signal Changed at pin 43 CHK007 of EDI1 on the Main PWB Yes L RGB1 H RGB2 H 5V Main PWB No RGB Input Terminal PWB No Are Signals Input at each Pin of EDI1 on the Main PWB Yes Main...

Страница 45: ...l Yes 6 9V Are the Input Signals Output at Pins 1 3 5 of EVSI on the Main PWB VIDEO Input Terminal VIDEO Input Terminal PWB No Yes Input Both S Signal Composite Video Signal 49 CHK002 VIDEO R signal 4...

Страница 46: ...K075 H sync 63 CHK074 V sync 15 66 CHK055 CLK Are Signals Input at the Pins below of EMD1 on the Main PWB No Main PWB Yes Drive PWB No PWB Input Terminal RGB PWB Signal 4 CHK0041 6 6V 6 CHK0043 17 0V...

Страница 47: ...gnal Output at Pins 8 10 of EVS1 on the Main PWB VIDEO Input Terminal No PWB Input Terminal VIDEO Yes Power Unit Circuit Signal PWB 8 Audio L 10 Audio R Check at operating mode RGB and VIDEO Input Sig...

Страница 48: ...RS232C PS 2 ADB Serial 1 2 CLK 3 DATA DATA 6 SEL0 SEL0 SEL0 SEL0 7 RTS RTS RTS RTS 9 5v 5v 10 GND GND GND GND 12 SEL1 SEL1 SEL1 SEL1 13 RDP 14 TDP TD Check at operating mode Cannot Control Mouse or R...

Страница 49: ...8755 8770 Troubleshooting Copyright 2000 3M IPC All Rights Reserved 3 10 3 9 Can Not Control USB Mouse Can Not Control USB Mouse Is the Voltage at Pin 26 CHK0019 of EDI1 on the Main PWB set to H No M...

Страница 50: ...3 10 Signal Waveforms of P501 P601 and P701 Input Signal is VGA3 7 5V DC 4V 9V 1H 1 8 pin 5 PCG pin 1 36 V COM 4V 9V 2H V DATA 4V 9V 1H 12 5V 1H pin 8 VCP pin 9 VCP 4V 9V 200nS 1H HMC EG01 14 5V ER01...

Страница 51: ...edia Projector MP8670 8745 8755 8770 Troubleshooting Copyright 2000 3M IPC All Rights Reserved 3 12 Signal Waveforms of P501 P601 and P701 Input Signal is VGA3 Continued pin 30 31 SIG 1 2 7 5V 4 5V 4...

Страница 52: ...ton on the top of the projector or the Video1 2 button on the remote control Signal Board The video signal passes though the video signal selector then to the comb filter where it is split into the ch...

Страница 53: ...rved 4 2 Driver Board Refer to driver board information for video RGB Out RGB out simply takes the information in its analog state and passes it through an amplifier to the terminal out Additional ele...

Страница 54: ...has its own measurable wavelength or combination of wavelengths The wavelengths of light are not colored but produce the sensation of color 4 2 2 Electromagnetic Spectrum All wavelengths of light are...

Страница 55: ...hemselves allowing the light to pass through the pixels Shades of gray are obtained by inputting voltages that fall between full off no voltage and full on full voltage The cells are refreshed at the...

Страница 56: ...a DC 260 watt metal halide bulb is capable of producing 550 lumens of uniform brightness across the entire projection image The metal halide bulbs should never be touched When oil from your skin touc...

Страница 57: ...ave plate polarizer that allows for passage of both horizontal and vertical light waves mirrors dichroic mirrors polarizers and LCD panels Component Description Lamp Projects light Mirror Reflects all...

Страница 58: ...3M Multimedia Projector MP8670 8745 8755 8770 Theory and Diagrams Copyright 2000 3M IPC All Rights Reserved 4 7 4 6 Block Diagram...

Страница 59: ...4 7 Wire Diagrams Copyright 2000 3M IPC All Rights Reserved 4 8 4...

Страница 60: ...4 7 Wire Diagrams Copyright 2000 3M IPC All Rights Reserved 4 9...

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