NEC PlasmaSync 50MP1 User Manual page 100

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.
M1006 input
M1007 input
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
M1005 inpit
IC5703~
IC5705 ; SW
IC5714~ IC5004~
IC5716 ; SW IC5006 ; SW
RGB signal after the decoding
of the VIDEO signal
2
IC5708 ;
BUFER
To the MAIN PWB
IC5702,
IC5704,
IC5706,
; SW
IC57089
BUFER
To the MAIN PWB