XG-MB67X
8 – 3
DMD system check
Check P2501 for breakage and
solder crack and peripheral
resistance for solder crack.
Check SC9101 for breakage
and solder crack.
Is there any vertical stripe
(block noise) on the screen?
YES
The main PWB and DMD PWB are in poor
contact. Check the contact surface for dirt
and smear. Check the DMD connector for
breakage. Reassemble the DMD, optical
mechanism, and DMD PWB.
NO
Is the screen all black?
NO
Is approx. 7 V applied to TL9303?
NO
Check IC9301 and peripheral cir-
cuits.
YES
YES
Is approx. 26 V applied to TL9301?
NO
Check IC9301 and peripheral cir-
cuits.
YES
Is approx. -26 V applied to TL9302?
NO
Check IC9301 and peripheral cir-
cuits.
YES
The main PWB and DMD PWB are in poor
contact. Check the contact surface for dirt
and smear. Check the DMD connector for
breakage. Reassemble the DMD, optical
mechanism, and DMD PWB.
Is 3.27 V applied to IC2231
pin(1) and 1.8 V to TL2231?
NO
Check IC2231, IC2201, and their peripheral
circuits.
YES
Is 400 MHz on IC2241 pin(20)? NO
Check IC2241 and peripheral circuits.
1
Содержание XG-MB67X
Страница 10: ...XG MB67X 2 2 Front View ...
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Страница 13: ...XG MB67X 2 5 Rear View ...
Страница 15: ...XG MB67X 3 1 XG MB67X Service Manual CHAPTER 3 DIMENSIONS 1 DIMENSIONS ...
Страница 41: ...XG MB67X 9 2 MEMO ...
Страница 43: ...XG MB67X 10 2 MAIN UNIT RC UNIT SENSOR UNIT DMD UNIT Color Wheel TH2 TEMP Sensor ...
Страница 44: ...XG MB67X 10 3 2 OVERALL WIRING DIAGRAM POWER UNIT ...
Страница 45: ...XG MB67X 10 4 ...
Страница 46: ...XG MB67X 11 1 XG MB67X Service Manual CHAPTER 11 PRINTED WIRING BOARD 1 MAIN Unit MAIN Unit Side A ...
Страница 47: ...XG MB67X 11 2 ...
Страница 50: ...XG MB67X 11 5 MAIN Unit Side B ...
Страница 51: ...XG MB67X 11 6 ...
Страница 55: ...XG MB67X 11 10 6 5 4 3 2 1 A B C D E F G H DMD Unit Side B ...
Страница 56: ...XG MB67X 11 11 3 POWER Unit POWER Unit Side A ...
Страница 57: ...XG MB67X 11 12 ...
Страница 58: ...XG MB67X 11 13 POWER Unit Side B ...
Страница 59: ...XG MB67X 11 14 ...
Страница 65: ...XG MB67X 11 20 6 R C Unit 6 5 4 3 2 1 A B C D E F G H R C Unit Side A R C Unit Side B ...
Страница 66: ...XG MB67X 12 1 XG MB67X Service Manual CHAPTER 12 WAVEFORMS 1 WAVEFORMS ...
Страница 68: ...XG MB67X 13 2 2 SCHEMATIC DIAGRAM MAIN Unit 1 10 ...
Страница 69: ...XG MB67X 13 3 ...
Страница 70: ...XG MB67X 13 4 MAIN Unit 2 10 ...
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Страница 72: ...XG MB67X 13 6 MAIN Unit 3 10 ...
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Страница 74: ...XG MB67X 13 8 MAIN Unit 4 10 ...
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Страница 76: ...XG MB67X 13 10 MAIN Unit 5 10 ...
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Страница 78: ...XG MB67X 13 12 MAIN Unit 6 10 ...
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Страница 80: ...XG MB67X 13 14 MAIN Unit 7 10 ...
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Страница 84: ...XG MB67X 13 18 MAIN Unit 9 10 ...
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Страница 86: ...XG MB67X 13 20 MAIN Unit 10 10 ...
Страница 87: ...XG MB67X 13 21 ...
Страница 88: ...XG MB67X 13 22 8 7 10 9 6 5 4 3 2 1 A B C D E F G H DMD Unit 1 3 ...
Страница 89: ...XG MB67X 13 23 17 16 19 18 15 14 13 12 11 ...
Страница 90: ...XG MB67X 13 24 8 7 10 9 6 5 4 3 2 1 A B C D E F G H DMD Unit 2 3 ...
Страница 91: ...XG MB67X 13 25 17 16 19 18 15 14 13 12 11 ...
Страница 92: ...XG MB67X 13 26 8 7 10 9 6 5 4 3 2 1 A B C D E F G H DMD Unit 3 3 ...
Страница 93: ...XG MB67X 13 27 17 16 19 18 15 14 13 12 11 ...
Страница 94: ...XG MB67X 13 28 BALLAST CONTROL Unit ...
Страница 95: ...XG MB67X 13 29 ...
Страница 96: ...XG MB67X 13 30 POWER Unit ...
Страница 97: ...XG MB67X 13 31 11 13 12 14 15 16 18 19 17 ...
Страница 98: ...XG MB67X 13 32 6 5 4 3 2 1 A B C D E F G H PHOTOSENSOR UNIT ...
Страница 99: ...XG MB67X 13 33 6 5 4 3 2 1 A B C D E F G H R C UNIT ...
Страница 100: ...XG MB67X 13 34 MEMO ...
Страница 127: ...XG MB67X ...