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SERVICE MANUAL
2010
4 S ERVICE MANUAL
PA037<Rev.001>
DLA-HD550-BU, DLA-HD550-BC,
DLA-HD550-BE, DLA-HD550-WE,
DLA-HD950-BU, DLA-HD950-BC,
DLA-HD950-BE, DLA-HD990-BU,
for DLA-HD950/HD990
COPYRIGHT © 2010 Victor Company of Japan, Limited
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
D-ILA PROJECTOR
DLA-HD990-BE
TABLE OF CONTENTS
COPYRIGHT © 2010 Victor Company of Japan, Limited
No.PA037<Rev.001>
2010/4
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Summarization of Contents
PRECAUTION
Safety Precautions
General safety precautions for product design and servicing.
Warnings and Cautions
Important notices regarding safety standards and product handling.
Critical Safety Parts
Identification of safety-critical components on PCBs.
Static Electricity Prevention
Precautions to prevent ESD damage to laser diodes.
Installation Method and Site
Procedures and considerations for projector installation and site selection.
SPECIFIC SERVICE INSTRUCTIONS
New Technology Overview
Explanation of JVC's original technologies and unique features.
Key Projector Features
Details on zoom lens, video processor, contrast ratio, and motion features.
Certification and Control
Information on ISF/THX modes, remote control, and quiet operation.
Model Differences and LED Indicators
Highlights model variations and explains LED status lights.
Controls and Terminals
Identifies operation buttons, LEDs, and input/output ports.
Lamp Unit Handling
Procedures and cautions for lamp unit replacement and reset.
Projection Specifications
Details on projection distance and related operating notes.
SERVICE POLICY
PCB/Block Repair Support
Lists PCBs/Blocks, parts numbers, and repair methods.
SERVICE MENU
Accessing and Operating the Service Menu
Steps to enter and navigate the service menu.
Service Menu Screen Details
Overview of Adjust, Option, Color Temp, Color Management, Pixel Shift screens.
Setting Items Details
Specific parameters, ranges, and functions within the service menu.
Picture Mode Initial Settings
Default values for picture modes across different models.
DISASSEMBLY
Lamp Unit and Top Cabinet Removal
Steps to remove the lamp cover, lamp unit, and top cabinet.
Operation PWB and Ground Plate Removal
Procedures for removing Operation PWB and Ground Plate.
Front Cover and IR PWB Removal
Steps to remove the front cover and IR PWBs.
Power Supply and Processor PWB Removal
Procedures to remove Power Supply and Processor PWBs.
Optical Block and Air Duct Removal
Steps to remove the optical block and upper air duct.
Air Duct, Fan, and Switch Removal
Steps to remove lower air duct, exhaust fan, and lamp cover switch.
Thermostat and AC Inlet Removal
Procedures for removing thermostat and AC power inlet.
ADJUSTMENT
Adjustment Preparation and Tools
Prerequisites, tools, and instruments required for adjustment.
Post-Replacement Adjustment Requirements
Specifies adjustments needed after replacing specific parts.
Data Backup and Writing Procedures
Steps for backing up and writing Lamp Time, ISF, and CMS data.
Color Temperature and Pixel Shift Calibration
Detailed steps for adjusting color temperature and pixel shift.
TROUBLESHOOTING
Protective Functions and LED Indicators
Explains protective sensors, switches, and LED warning indications.
Error Log Analysis and Usage
How to load and interpret error logs for diagnosis.
MCU FIRMWARE UPDATE
Firmware Update Prerequisites and Process
Required items and step-by-step guide for MCU firmware updates.
Driver Installation
Instructions for installing necessary device drivers for the update.
Update Tool Operation
Guide on using the specific software tool for firmware updates.
Firmware Update Error Messages
Lists common error messages and their meanings during firmware updates.
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