Panasonic gp8du gph8du th-37px50u th-42pd50u th-42px50u th-42px500u th-50px50u th-50px500u troubleshooting Instruction De Maintenance

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Video Input Selection Block Diagram 
 
 
Figure 20
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The H board contains the Video inputs 1, 2, and 3, Component Video Inputs 1 and 2, 
and the Program Out jacks. All the Audio/Video input signals are applied to this board 
for selection. There are two input selection ICs on this board; IC2602, which selects the 
video input signals and IC2605, which selects the audio input signals. Video signals 
from the digital tuner and the HDMI receiver board (DV board) pass through the DG 
board and enter IC2602 of the H board via the connector H2/DG2. The selected video 
signals are output to the DG Board without alteration. The output signals can be in any 
of the three formats; Video, Y/C, or Y, Pb, Pr.  
 
The PC input signal simply passes through the H board and enter the DG board via the 
same connector. Selection between PC and other input signals takes place on the DG 
board. 
 
 
 
 
 
 
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