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A6. JBMA CONTRAST
JBMA Contrast = Average (L1,L2,L3,L4,L5,L6,L7,L8,L9) under solid white / Average
(L1,L2,L3,L4,L5,L6,L7,L8,L9) under solid black
A7. LIGHT LEAKAGE
Leakage = The maximum light leakage under a solid black pattern in or outside of the projected
image
A8. IMAGE DISTORTION
Keystone = (W2-W1)/ (W1+W2) x 100%
Vertical TV dist = (H1+H2-2xH3)/2H2 x100%
Horizontal TV dist = (W1+W2-2xW3)/2W1 x100%
W1: image width at image bottom
W2: image width at image top
W3: image width at the half image height.
H1: image height at image left
H2: image height at image right
H3: image height at half image
Note:
1.
Keystone and Vertical TV Distortion are recommended for Front Projection Display
2.
Vertical and Horizontal TV Distortion are recommended for Rear Projection Display
A9. THROW RATIO
Throw ratio = projection distance / the width of the projected image
A10. ZOOM RATIO
Zoom ratio = maximum / minimum image diagonal size at a fixed projection distance
H1 H3 H2
W3
W1
W2
Summary of Contents for Mainstream MP611
Page 32: ...32 Figure 1 Major Blemish Two Zone Screen Non Critical Zone Critical Zone center 25 ...
Page 43: ...43 Packing ...
Page 44: ...44 ...
Page 61: ...61 Disassembly Assembly Exploded View ...
Page 62: ...62 ...
Page 63: ...63 ...
Page 64: ...64 Disassembly Assembly ...
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Page 68: ...68 Level 1 Cosmetic Appearance Alignment Service Appearance ...
Page 69: ...69 ...
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Page 71: ...71 ...
Page 78: ...78 Overfill adjustment As the picture below adjust light pipe to keep overfill image center ...
Page 84: ...84 ...
Page 90: ...90 Figure 4 6 Figure 4 9 ...
Page 91: ...91 ...
Page 92: ...92 ...
Page 99: ...99 BKT Link Lamp Shield CW Figure9 3 Figure9 4 ...
Page 104: ...104 3 Example ...
Page 105: ...105 10 Mechanical Assembly Concerns ...
Page 112: ...112 ...
Page 113: ...113 11 Power Assembly Concerns 1 Power board component add GP glue 1 1 CY604 CY605 add glue ...
Page 114: ...114 1 2 CY625 CY612 add glue ...
Page 115: ...115 ...
Page 116: ...116 1 3 C651 R651 add glue 2 SW2 solder by operator ...
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Page 128: ...128 Chapter 3 Power Supply Trouble Shooting Guide 1 2 ...
Page 142: ...142 Bridge converts the AC input into DC output and the CAP is AC filter ...
Page 149: ...149 Circuit Schematics ...
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Page 152: ...152 PCB Artwork ...
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