Barco F70 - Troubleshooting

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83723–0018 /02 F70

Troubleshooting 16

Table of Contents

Default Chapter3
- Table of Contents3
1 Introduction9
- Scope and Limitations10
- Copyright10
- Trademarks10
- Required Handtools10
2 General Safety11
- General Safety Instructions12
- Notice on Safety12
- Users Definition12
3 Important Safety Instructions15
- To Prevent the Risk of Electrical Shock16
- To Prevent Personal Injury16
- To Prevent Fire Hazard17
- To Prevent Projector Damage17
- On Servicing18
- To Prevent Battery Explosion (PCB)18
- Precautions During Lens Shift19
- Laser Safety19
- Warning Labels19
4 DLP System General Description21
- Gp7Optical Principle22
- The DMD Device24
- The Grayscale Image24
- Adding Color25
- Single Chip DLP Projection System25
5 GP7 System Functional Description27
- Electronic Platform28
- I/O's and Processing Tasks28
- Block Diagram GP7 Platform29
- Wiring Matrix31
- Firmware32
- System Safety Loop33
- Laser Driver Principle and Error Codes34
6 GP7 Periodic Maintenance37
- Service Interval Matrix38
- Service Kits Available38
7 OSD / Display Menu41
- Service Menu42
- Troubleshooting Tools43
8 Thermal Management System45
- Ventilation and Cooling46
- Liquid Cooling System47
- Fans48
- Thermal Sensors51
- DMD Cooling51
- System Thermal Diagram52
9 Lenses and Adjustment55
- Scheimpflug Adjustment56
- Locking the Lens Position56
10 Optical Adjustments59
- Perfecting the Lighting Path60
- Lighting Mirror Adjustment60
- Lighting Mirror: Horizontal (X) Adjustment60
- Lighting Mirror: Vertical (Y) Adjustment61
- Focus: Relay Tube Lens Focus Adjustment61
- Color Uniformity, TI Loop Mirrors Adjustment62
  - Color Uniformity, Left TI Loop Mirror62
11 Colorwheels63
- Replacing the Colorwheel Assy64
- Colorwheel Index Adjustment64
- Index Adjustment Procedure64
12 Phosphor Wheel67
- Replace the Phosphor Wheel Assembly68
- Entering Prospector Diagnostic Tool68
- Calibrating the Phosphor Wheel68
13 Laser Pulsing Adjustment71
- Procedure72
14 XPS Actuator75
- XPS Actuator Replacement76
- Calibrating the XPS Actuator76
15 Power Supply Unit (PSU)79
- AC Input80
- Output Specification80
- Connectors80
- Mainboard Connector J481
- Thermal Hub Connector J381
- Laser Driver Connector J282
- Power Supply Diagnostics82
16 Troubleshooting83
- Status LED Indications84
- Led's on Thermal Hub and Mainboard84
  - Thermal Hub Board Led's84
  - Main Board Led's85
- Available Diagnostic Tools86
- Troubleshooting87
17 Assembly Hierarchy103
- Disassembly / Assembly Instructions105
- Safety Precautions105
- Removing the Projector Cover Panels105
- Removing Peripheral Pcbs108
18 Scheduled Operations115
- Scheduled Operations Matrix116
- 20000 Hours LFM Service116
- 40000 Hours Service128
19 Technical Operations133
- PCB Main134
  - PCB Removal Preparations134
  - PCB Main Assembly Removal135
- PCB Laser Driver Boards136
- DMD, DMD Board and CLGA & DMD Heatsink Elements137
- GP7 PCB DMD Board138
- Clga & DMD138
- Re-Assembly after PCB DMD or DMD/CLGA Repair139
- GP7 Heatsink DMD Front & Rear Assemblies140
- GP7 Heatsink DMD Front Assembly141
- Remove the Laser Interface141
- Install New Laser Interface142
- PCB Thermal Hub Board143
  - PCB Thermal Hub, Complete Assy Removal144
20 TI Loop145
- General146
- Overview Engine Assembly146
- Opening and Component Identification146
21 Illumination Engine153
- Iris Assembly154
- Relay Tube Assembly154
- PCB CLO (Constant Light Output)155
- Folding Mirror Assembl156
22 Lens Shift Assembly157
- Lens Shift Assembly Motors159
- Lens Position Sensors (Horizontal and Vertical)159
- PCB Lens Connectors160
- Lens Shift Assembly and Optical Actuator160
- TIR Prism162
  - Remove the TIR Prism162
  - Cleaning the TIR Prism163

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