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3M
Multimedia Projector MP8620 Table of Contents
3M 1999
i
MP8620 Table of Contents
1. Adjustments
...................................................................................................................................................1-1
1-1. Overview
............................................................................................................................................1-1
1-2. Static Control
.....................................................................................................................................1-1
1-2-1. Static-Safe Work Environment
.............................................................................................1-1
1-3. Machine Identification
.......................................................................................................................1-1
1-4. Technician Tools
................................................................................................................................1-2
1-5. Return to Default Settings
..................................................................................................................1-3
1-6. Cleaning the LCD Panel
.....................................................................................................................1-4
1-6-1. Checking for Dust
.................................................................................................................1-4
1-6-2. Cleaning the Dust from LCD
................................................................................................1-4
1-7. LCD Panel Alignment
........................................................................................................................1-5
1-7-3. LCD Verification and Alignment
.............................................................................................1-5
1-7-2. LCD Ribbon Cable Installation
.............................................................................................1-5
1-7-3. LCD Ribbon Cable Installation
.............................................................................................1-6
1-8. Interface/Audio Board Synchronization
.............................................................................................1-7
1-9. Lamp Alignment
................................................................................................................................1-8
1-9-1. Check the Lamp Alignment
..................................................................................................1-9
1-9-2. Align the Lamp
.....................................................................................................................1-9
1-10. Timer Information
............................................................................................................................1-10
1-10-1. Reset the Lamp Life Indicator
.............................................................................................1-10
1-11. Image Adjustments
...........................................................................................................................1-11
1-11-1. Adjusting the display resolution and brightness and contrast.
............................................1-11
1-11-2. Part 2 – Adjusting the tracking to remove vertical bands in the projection image.
.............1-12
1-11-3. Part 3 – Adjusting the Sync pixel frequency and scanning frequency.
...............................1-13
2. Disassembly/Reassembly
.............................................................................................................................2-1
2-1. Overview
............................................................................................................................................2-1
2-2. Required Tools
...................................................................................................................................2-1
2-3. Steps for Removing Projector Components
.......................................................................................2-1
2-3-1. Remove Top Cover
...............................................................................................................2-2
2-3-2. Remove EMI Shield
..............................................................................................................2-3
2-3-3. Remove Lamp Assembly
......................................................................................................2-4
2-3-4. Remove Power Supply
..........................................................................................................2-7
2-3-5. Remove Power Distributor
....................................................................................................2-8
2-3-6. Remove LCD Assembly
........................................................................................................2-9
2-3-7. Remove Lens
.......................................................................................................................2-11
2-3-8. Remove Audio Speakers
.....................................................................................................2-12
2-3-9. Remove IR Receiver Board
.................................................................................................2-13
3. Troubleshooting
.............................................................................................................................................3-1
3-1. Overview
............................................................................................................................................3-1
3-2. Section Contents
.................................................................................................................................3-1
3-3. Direct Failure Troubleshooting Flow Charts
......................................................................................3-1
3-3-1. Projector Does Not Power Up
...............................................................................................3-2
3-3-2. Lamp Does Not Light
............................................................................................................3-3
3-3-3. Projector Image Problem
.......................................................................................................3-4
3-3-4. LCD Not Functioning
...........................................................................................................3-5
3-3-5. No Sound
...............................................................................................................................3-6