Optoma H31, Service Manual

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H31 4-1
Coretronic Corporation
Chapter 4
Function Test & Alignment Procedure
4-1 Product
- H31
4-2 Test Equipment
- IBM PC with XGA resolution (Color Video Signal & Pattern Generator)
- VCR with Multi-system(NTSC/PAL/SECAM)
- Chroma meter Minolta CL-100
- Chroma 2327 (Pattern Generator)
4-3 Test Condition
- Circumstance Brightness : Dark room less than 2.5 lux (for Brightness measure)
- Inspection Distance : 2.5~3m
- Screen Size : 60 inches diagonal (wide)
- Before function test and alignment, each H31 should be run-in and warmed-up for at
least 2 hours with following conditions.
1.) In room temperature
2.) With cycled display colors (R,G,B,White)
3.) With cycled display modes
640*480 (H=37.5 KHz, V=75 Hz)
720*400 (H=31.5 KHz, V=70 Hz)
800*600 (H=53.7 KHz, V=85 Hz)
800*600 (H=37.9 KHz, V=60 Hz)
1024*768 (H=48.4 KHz, V=60 Hz)
1024*768 (H=68.7 KHz, V=85 Hz)
1024*1024 (H=63.98 KHz, V=60 Hz)
- Test Display Mode & Pattern (Refer to 4-4.1 & 4-4.2)
- Function Test and Alignment Procedure