2
■
VIDEO PWB Block
1. AUDIO block
The AUDIO signal input entered from M1008 to M1010 is controlled and selected by I2C bus control of IC5001
(MM1311BD: SW).
The selected AUDIO signal is output from the AB connector to the AUDIO AMP module via IC5002 (BA4558:
buffer).
2. PC block
The video signals (RGB signals) from M1006 and M1007 are selected at IC5703, IC5705, and IC5707, and then
output to the MAIN PWB via IC5708 (AD8023: buffer) and the PC connector.
3. HD block
The video signals (Y, Pb, Pr signals) from M1006 and M1007 are selected at IC5714 to IC5716. The selected
signals are changed over with the signals from M1005 at IC5004 to 5006.
The selected video signals (Y, Pb, Pr signals) are further changed over with the signals on the VIDEO input side
at IC5702, 5704, and 5706. The resultant outputs are sent to the MAIN PWB via IC5709 (AD8023; buffer) and
the YU connector.
M1006 input
M1007 input
IC5703~
IC5705 ; SW
IC5708 ;
BUFER
To the MAIN PWB
M1006 input
M1007 input
M1005 inpit
IC5714~
IC5716 ; SW
IC57089
BUFER
IC5004~
IC5006 ; SW
IC5702,
IC5704,
IC5706,
; SW
To the MAIN PWB
RGB signal after the decoding
of the VIDEO signal
Summary of Contents for PlasmaSync 50MP1
Page 1: ...USE THIS SERVICE MANUAL WHEN SERVICING Model PLA 50V1 ...
Page 10: ...PlasmaSync Plasma Monitor User s Manual NEC Technologies ...
Page 64: ...TROUBLESHOOTING 4 1 ...
Page 80: ...METHOD OF ADJUSTMENTS 5 1 ...
Page 98: ...CIRCUIT DESCRIPTION 6 1 ...
Page 113: ...METHOD OF DISASSEMBLY 7 1 ...
Page 134: ...PACKAGING 8 1 ...
Page 135: ......
Page 136: ......
Page 137: ......
Page 138: ......
Page 139: ......
Page 140: ......
Page 141: ......
Page 142: ......
Page 143: ......
Page 144: ......
Page 145: ......
Page 146: ......
Page 147: ...PART LIST 9 1 ...
Page 158: ...CONNECTION DIAGRAMS 10 1 ...
Page 160: ...BLOCK DIAGRAMS 11 1 ...
Page 163: ...SCHEMATIC DIAGRAMS 12 1 ...
Page 164: ......
Page 165: ......
Page 166: ......
Page 167: ......
Page 168: ......
Page 169: ......
Page 170: ......
Page 171: ......
Page 172: ......
Page 173: ......
Page 174: ......
Page 175: ......
Page 176: ......
Page 177: ......
Page 178: ......
Page 179: ......
Page 180: ......
Page 181: ......
Page 182: ......
Page 183: ......
Page 184: ......
Page 185: ......
Page 186: ......
Page 187: ......