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3M MP7770 Service Manual

Summary of MP7770

  • Page 1

    Mp7770 multimedia projector service manual 3m visual systems division eps service documentation 6801 river place boulevard copyright © 2002, 3m ipc. All rights reserved. Austin, texas 78726-9000 78-6970-8985-8 warranty and limited remedy. This product will be free from defects in material and manufa...

  • Page 2: Mp7770  Table of Contents

    Mp7770 table of contents 2002, 3m ipc. I section 1. Machine overview 1-1 overview .................................................................................................................................................1-1 1-2 machine identification .............................................

  • Page 3: Mp7770  Table of Contents

    Mp7770 table of contents 2002, 3m ipc. Ii section 4. Theory and diagrams 4-1 theory of operation ..............................................................................................................................4-1 4-2 wiring diagrams ........................................................

  • Page 4

    3m™ multimedia projector mp7770 machine overview 2002, 3m ipc. 1-1 1. Machine overview 1-1. Overview make advanced adjustments to this projector in a clean environment with minimal dust and positive pressure. This section provides the advanced adjustment procedures needed to maintain a high quality ...

  • Page 5

    3m™ multimedia projector mp7770 machine overview 2002, 3m ipc. 1-2 1-4. Safety read and understand all safety procedures before making any repairs to the mp7770 multimedia projector. Note when any work is being carried out on the device, the mains cable must be disconnected from the mains supply. On...

  • Page 6

    3m™ multimedia projector mp7770 machine overview 2002, 3m ipc. 1-3 1-5. Specifications 4,5 x 3,4 1,5 x 1,13 2 x 1,5 2,5 x 1,88 3 x 2,25 3,5 x 2,63 4 x 3 h% b x h 36mm tele 6,0 l (m) 28mm wide (m) 4,0 3,0 2,0 5,4 4,7 3,4 3,3 2,7 2,6 2,3 1,9 1,5 1,1 ~ 100 - 240v ac 200 - 240v ac 50 - 63 hz 35 c max 10...

  • Page 7

    3m™ multimedia projector mp7770 disassembly/reassembly 2002, 3m ipc. 2-1 2. Disassembly/reassembly 2-1. Overview disassembly and reassembly of the mp7770 is done using the reference photographs and the step-by-step procedures that follow. Many component disassembly steps build upon previous disassem...

  • Page 8

    3m™ multimedia projector mp7770 disassembly/reassembly 2002, 3m ipc. 2-2 1 2 3 2-3-1. Remove bottom cover to avoid electrical shocks, unplug projector power cord before performing any maintenance to electrical components. To avoid burns to fingers, allow projector lamp and internal projector compone...

  • Page 9

    3m™ multimedia projector mp7770 disassembly/reassembly 2002, 3m ipc. 2-3 4 5 6 7 8 4. Using steady pressure, pull upward on clip/handle to remove lamp module. 5. Close lamp door. 6. Use a #10 torx driver and remove five (5) screws on bottom of projector. 7. Remove one (1) longer screw by adjustment ...

  • Page 10

    3m™ multimedia projector mp7770 disassembly/reassembly 2002, 3m ipc. 2-4 2 1 3 2 4 2 2-3-2. Remove top cover to avoid electrical shocks, unplug projector power cord before performing any maintenance to electrical components. To avoid burns to fingers, allow projector lamp and internal projector comp...

  • Page 11

    3m™ multimedia projector mp7770 disassembly/reassembly 2002, 3m ipc. 2-5 1 2 2 3 2-3-3. Remove interface board plate to avoid electrical shocks, unplug projector power cord before performing any maintenance to electrical components. To avoid burns to fingers, allow projector lamp and internal projec...

  • Page 12

    3m™ multimedia projector mp7770 disassembly/reassembly 2002, 3m ipc. 2-6 1 2 3 2 2 2 2-3-4. Remove interface board to avoid electrical shocks, unplug projector power cord before performing any maintenance to electrical components. To avoid burns to fingers, allow projector lamp and internal projecto...

  • Page 13

    3m™ multimedia projector mp7770 disassembly/reassembly 2002, 3m ipc. 2-7 1 2 5 2 6 2 3 2 2 2 4 2 2-3-5. Remove dmd kit to avoid electrical shocks, unplug projector power cord before performing any maintenance to electrical components. To avoid burns to fingers, allow projector lamp and internal proj...

  • Page 14

    3m™ multimedia projector mp7770 disassembly/reassembly 2002, 3m ipc. 2-8 1 2 2 2 5 2 4 2 3 2 2-3-6. Remove main fan to avoid electrical shocks, unplug projector power cord before performing any maintenance to electrical components. To avoid burns to fingers, allow projector lamp and internal project...

  • Page 15

    3m™ multimedia projector mp7770 disassembly/reassembly 2002, 3m ipc. 2-9 1 2 2 2 3 2 4 2 2-3-7. Remove power supply and flyback converter to avoid electrical shocks, unplug projector power cord before performing any maintenance to electrical components. To avoid burns to fingers, allow projector lam...

  • Page 16

    3m™ multimedia projector mp7770 disassembly/reassembly 2002, 3m ipc. 2-10 1 2 2 2 3 2 2-3-8. Remove video board to avoid electrical shocks, unplug projector power cord before performing any maintenance to electrical components. To avoid burns to fingers, allow projector lamp and internal projector c...

  • Page 17

    3m multimedia projector mp7770 troubleshooting 2002, 3m ipc. 3-1 3. Troubleshooting this section provides message flowcharts to aid in troubleshooting the 3m mp7770 multimedia projector. 3-1. Troubleshooting flowcharts 3-1-1. Firmware update factory reset switch on unit in standby message: "paramete...

  • Page 18

    3m multimedia projector mp7770 troubleshooting 2002, 3m ipc. 3-2 3-1-2. Fan cooling system check main fan working? Cartridge fan working? Lamp fan working? Check pin1:+5v pin2:-5v c1/j11 check pin1:+4v pin2:gnd c1/j9 check other fans change main fan 5b/12 change lamp fan 5a/13 change cartridge fan 7...

  • Page 19

    3m multimedia projector mp7770 troubleshooting 2002, 3m ipc. 3-3 3-1-3. Sound check no sound? Change connectionboard 5a/11 check audio signal c1/j13 check audio signal c1/j6 change interfaceboard 5a/260 change speaker 3/40 yes yes no no.

  • Page 20

    3m multimedia projector mp7770 troubleshooting 2002, 3m ipc. 3-4 3-1-4. Video check no video data mode ok change connectionboard 5a/11 check video signal change interfaceboard 5a/260 good not good c1/j4.

  • Page 21

    3m multimedia projector mp7770 troubleshooting 2002, 3m ipc. 3-5 3-1-5. No image, start-up screen ok no image only start up screen check internal test pattern change interfaceboard 5a/260 good not good bad connection interface-engine clean c1/j1 change dlp-kit 5b/440 no yes.

  • Page 22

    3m multimedia projector mp7770 troubleshooting 2002, 3m ipc. 3-6 3-1-6. No image, no start-up screen lamp ignites, -but dark image -no start up screen no yes check cw index pin3 c1/j14 change engine 5b/400 change interfaceboard 5a/260 check voltage cw index pin5: +1.5v c1/j14 change interfaceboard 5...

  • Page 23

    3m multimedia projector mp7770 troubleshooting 2002, 3m ipc. 3-7 3-1-7. Lamp does not work lamp doesn´t ignite check lamp visually is h-level at lampen pin4 c1/j19 colorwheel working change engine 5b/400 change interfaceboard 5a/260 no no yes yes change lamp ballast 6/70

  • Page 24

    3m multimedia projector mp7770 troubleshooting 2002, 3m ipc. 3-8 3-1-8. No function projector doesn`t switch on change interfaceboard 5a/260 check 390v dc c2/j3 check lamp door 4/20 check mains input 8a/10 check dc-voltage c1/j19 change flyback- converter 6/10 yes yes no no change lamp ballast 6/70

  • Page 25: Ct8

    3m multimedia projector mp7770 troubleshooting 2002, 3m ipc. 3-9 3-1-9. Switch off in hot condition ct8 projector switch off in hot condition projector goes off completes -fan run continuously -switch in standby again after cooling down -overtemperatur-main thermo switch projector goes into standby ...

  • Page 26

    3m multimedia projector mp7770 theory and diagrams 2002, 3m ipc. 4-1 4. Theory and diagrams this section provides the following theory and diagram information for this product: • = theory of operation • = wiring diagrams • = cabling and cable connectors • = functional diagrams 4-1. Theory of operati...

  • Page 27

    3m multimedia projector mp7770 theory and diagrams 2002, 3m ipc. 4-2 4-2. Wiring diagrams 4-2-1. Wire routing 1 2 3 4 5 6 7 8 9 10 11 12 13 14 16 25 18 20 20 22 21 23 24 17 26 27 28 29 30 31 31 black yellow blue red green/yellow white f3,15a note: part numbers and descriptions are on the following p...

  • Page 28

    3m multimedia projector mp7770 theory and diagrams 2002, 3m ipc. 4-3 4-2-2. Wire routing parts identification item liesegang 3m serial number description part number part number number 1 cable 270 green/yellow ef 0246099230 78-8118-3676-2 10001- 2 pwb panel bg 0245066019 78-8118-8518-1 10001- 3 spea...

  • Page 29

    3m multimedia projector mp7770 theory and diagrams 2002, 3m ipc. 4-4 4-2-3. Component connections flyback converter j3 1 2 1 2 3 4 5 6 j1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 j2 v-5 lamp lit pfc on lamp on gnd gnd +2v5 volt +3v3 volt +3v3 volt +5 volt +12 volt power fail interface board power supply lam...

  • Page 30

    3m multimedia projector mp7770 theory and diagrams 2002, 3m ipc. 4-5 4-3. Cabling and cable connectors 4-3-1. Pc and mac cabling rs 232 rgb usb pc mac 50 31 32 71 72 100 60 90 22 21 23 40 110 10 33 svhs video s-vhs / composite au d io au d io vi d e o 71 72 20 30 70 video vga mac 21 22 23 31 32 33 n...

  • Page 31

    3m multimedia projector mp7770 theory and diagrams 2002, 3m ipc. 4-6 4-3-2. Pc cabling 100 90 83 82 84 81 10 81 82 83 84 10 80 boosterbox pc compensation monitor on/off +10 +20 power projektor monitor computer rs 232 rgb.

  • Page 32

    3m multimedia projector mp7770 theory and diagrams 2002, 3m ipc. 4-7 4-3-3. Cabling parts identification item liesegang 3 m serial number description part number part number number 10 power cord, eu ek 0242100012 dy-0205-1354-4 10001- 10 power cord, uk ek 0242410012 dy-0205-1355-1 10001- 10 power co...

  • Page 33

    3m multimedia projector mp7770 theory and diagrams 2002, 3m ipc. 4-8 4-3-4. Cable connectors 33 adapter ps/2 maus 1 3 5 7 9 4 6 8 2 1 5 7 3 data clk gnd 2 6 4 con/mini din6 (male) d-sub 9pol (male) iec 48b 6pol 22 23 din 4pol mini - din 4pol mini 21 cinch - cinch 1 2 3 4 video video 1 2 3 4 chinch -...

  • Page 34

    3m multimedia projector mp7770 theory and diagrams 2002, 3m ipc. 4-9 40 scart - cinch 1 3 17 19 4 1 1 2 2 3 3 4 4 gnd gnd audio out - l audio out - r video out weiß rot gelb 50 60 adapter mouse seriell usb mouse cable usb/a usb/b d-sub 9pol (male) d-sub 9pol (female) d-sub 9pol (male) gehäuse 4 6 8 ...

  • Page 35

    3m multimedia projector mp7770 theory and diagrams 2002, 3m ipc. 4-10 72 panel - mac gehäuse gehäuse 2 6 13 11 4 9 3 15 12 7 5 1 10 1 7 8 10 11 3 12 13 14 5 4 2 6 r gnd-r g gnd-g b gnd-b csync gnd-sync hsync sense 0 sense 1 sense 2 14 vsync 15 nc. Nc. Diode 1n4148 hd-d-sub 15pol (male) d-sub 15pol (...

  • Page 36

    3m multimedia projector mp7770 theory and diagrams 2002, 3m ipc. 4-11 4-4. Functional diagrams 4-4-1. Component layout j13 j1 connection- board ignitor f3,15a m red blue white m yellow black red red (+) black m yellow black red 7/26-c7 7/30-c2 7/7-c1 cr 7/2-c6 7/25-c4 7/18-c3 key- board interfaceboa...

  • Page 37: C1A

    3m multimedia projector mp7770 theory and diagrams 2002, 3m ipc. 4-12 4-4-2. Component pin connections c1a interface board j12 j13 j4 j2 j1a j6 j5 j3 j7 j11 j19 j1 j14 j8 j9 j10 j1 ti-palmtop 60 58 56 54 52 50 48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 59 57 55 53 51 49 47 4...

  • Page 38: C1B

    3m multimedia projector mp7770 theory and diagrams 2002, 3m ipc. 4-13 belegung pin 1 +3v - +5v 2 -5v 3 fangood belegung pin 1 +4v 2 gnd 3 fangood c1b j2 serial 1 2 3 4 5 6 7 8 9 belegung pin belegung pin 1 dcdin 2 rxdi 3 txdo 4 dtrout 6 - 7 rtso 8 ctsi_pd 9 ri1 5 gnd j3 usb-adapter 1 2 3 4 belegung ...

  • Page 39: C1C

    3m multimedia projector mp7770 theory and diagrams 2002, 3m ipc. 4-14 3 5 7 9 11 13 15 17 19 21 23 4 6 8 10 14 18 22 2 12 16 20 belegung pin 1 gnd 2 - 3 cwindex 4 - 5 1,5v belegung pin belegung pin belegung pin 1 audcam_r 2 v+12g 3 gnd 4 audio_l 5 gnd 6 gnd 7 gnd 8 cam_bas 9 gnd 10 cam_chr 11 gnd 12...

  • Page 40

    3m multimedia projector mp7770 theory and diagrams 2002, 3m ipc. 4-15 c2 flyback-converter j3 j1 j2 123456 belegung pin belegung pin 1 lampon 2 gnd 3 +5v 4 gnd 5 lamplit 6 3a +3v3 j2 out belegung pin belegung pin belegung pin 1 v-5 2 lamplit0 3 pfcon 4 lampen 5 gnd 6 gnd 7 v+2v5 8 v+3v3 9 v+3v3 10 v...

  • Page 41

    3m multimedia projector mp7770 theory and diagrams 2002, 3m ipc. 4-16 1 3 5 7 9 11 13 15 17 19 21 23 4 6 810 12 14 16 18 20 22 c3 connection board j4 j1 j6 j3 j5 3 1 2 4 5 j3 audio j4 424d_con 2 24 j5 camera 4 9 1 7 6 5 2 3 8 j6 video belegung pin belegung pin 1 gnd 2 gnd 3 bas 4 chr 5 gnd gnd r l b...

  • Page 42

    3m multimedia projector mp7770 theory and diagrams 2002, 3m ipc. 4-17 c4 temp-sensor j1 j1 pcb_con belegung pin 1 vcc 2 sda 3 scl 4 gnd 1 2 3 4.

  • Page 43

    3m multimedia projector mp7770 theory and diagrams 2002, 3m ipc. 4-18 c5 ir-receiver 12 3 j1 244 belegung pin j1 1 irout 2 irvcc 3 gnd.

  • Page 44

    3m multimedia projector mp7770 theory and diagrams 2002, 3m ipc. 4-19 c6 j1 1 10 j1 424rxx belegung pin belegung pin 1 scan0 2 scan1 3 scan2 4 tast0 5 tast1 6 tast2 7 vcc 8 taspw 9 led_rot 10 led_gruen s8 s7 s3 s6 s5 s4 s9 s2 s1 s10 keyboard.

  • Page 45

    3m multimedia projector mp7770 theory and diagrams 2002, 3m ipc. 4-20 f3,15a j3 j1 j2 belegung pin belegung pin 1 lampon 2 gnd 3 pfcon 4 gnd 5 lamplit 6 vcc c7 power supply j1 dcout belegung pin 1 l1 2 n 3 gnd 1 2 3 123456 j3 acin 1 2 belegung pin 1 390v 2 0 j2 control.