Adjustment - JVC D-ILA DLA-HD1-BC Service Manual

4.1 BEFORE STARTING ADJUSTMENT
(1) Adjustment items utilize a personal computer.
(2) Data back up is required before adjustments.
(3) Allow the equipment and test instruments adequate time
(at least 10 minutes) to warm-up.
(4) Confirm the set is properly connected to the specified AC
power source.
4.2 INSTRUMENTS AND TOOLS
• Oscilloscope
• Light meter [for example: Minolta T-10]
• Color-meter [CL-200]
• Personal computer
Operating system Windows 2000 XP
Memory More than 16 Mbytes
Hard disk free space More than 5 Mbytes
RS-232C interface At least 1 port
Minimum : 800 × 600 pixels
Display resolution
Recommended : 1024 × 768 pixels or better
Display colors Minimum : 8 bits/pixel
Recommended : 16 bits/pixel or better
Input devices Keyboard and mouse
4.3 REQUIRED ADJUSTMENTS BY REPLACING COMPONENTS
The following adjustment procedure is required after replacing PWB ASS'Ys, LAMP BALLAST UNIT and OPTICAL BLOCK.
Items noted as "Check" means check the condition, then adjust if required.
4.3.1 Component required adjustment at replacing
Adjustment items
1. LAMP TIME BACKUP
2. COLOR TEMPERATURE
3. PIXEL SHIFT
4. DESTINATION WRITING
4.3.2 List of required instruments and tools
Adjustment items
1. LAMP TIME BACKUP
2. COLOR TEMPERATURE
3. PIXEL SHIFT
4. DESTINATION WRITING
SECTION 4

ADJUSTMENT

PROCESSOR LAMP
Required
Check Check
Check
Required
Light Meter Color Meter
Required
(5) Use care not to disturb internal controls and parts not spe-
cifically mentioned.
(6) Unless specifically mentioned in the "ADJUSTMENT"
steps, do not change any data.
• Adjustment software
• RS-232C 9pin NULL-MODEM (cross) cable
• Photoelectric conversion device (one of these)
Light meter [Minolta T-10] A-out (Analog output)
• Screen
• Darkroom (illumination less than 0.03 lx)
< Use these instruments and tools if necessary >
• NTSC / PAL signal generator : component [Y / CB / CR] output
Gray scale : 0IRE-100IRE
Flat (raster) pattern : 10%
• HDTV signal generator : component output [Y / PB / PR], HDMI
output
Flat (raster) pattern : 50%
POWER LAMP BALLAST OPTICAL BLOCK
Check
Check
PC
Required
Required
Check Required
Check Required
Screen Signal generator
Required Required
Required
(No.PA023)1-19