3.
The raster don’t appear
﹒
The raster don't appear
Is the C425 = -200V
normal?
Does the CRT heater
glow red?
Does the entire screen
light up?
Turn the FBT screen
clockwise
FBT is defective
R457, D420 are
defective
Is the voltage at the
pin10 of CRT
normal?
D206,Q208, R226 are
defective
Heater voltage
approx. 6.3V
Q420, Q419, IC301
Mute control are
defective
No
Yes
Yes
No
Yes
No
No
44
ViewSonic
Corporation
Co
nfidential
-
Do
Not
Copy
G90f/B-3
Содержание G90f/B-3
Страница 26: ...Waveform 1 2 3 4 5 6 23 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 27: ...7 8 8 10 11 12 24 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 28: ...13 14 14 16 17 18 25 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 29: ...19 20 20 22 23 24 26 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 30: ...25 26 26 28 29 30 27 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 31: ...30 32 33 34 34 36 28 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 32: ...37 38 39 40 40 42 29 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 33: ...43 44 45 46 46 48 30 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 34: ...49 50 51 52 53 54 31 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 35: ...55 56 32 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 40: ...C PCB defined Main board 37 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 85: ...82 ViewSonic Corporation Confidential Do Not Copy G90f B 3 8 Exploded Diagram And Spare Parts List...
Страница 88: ...85 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 89: ...86 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 90: ...87 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 91: ...88 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 92: ...89 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 93: ...90 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 94: ...91 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 95: ...92 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 96: ...93 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 97: ...94 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 98: ...95 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 99: ...96 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 100: ...97 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 101: ...98 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 102: ...9 Block Diagram 99 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 103: ...10 Schematic Diagrams 100 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 104: ...101 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 105: ...102 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 106: ...103 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 107: ...104 ViewSonic Corporation Confidential Do Not Copy G90f B 3...
Страница 108: ...11 PCB Layout Diagrams 105 ViewSonic Corporation Confidential Do Not Copy G90f B 3...