Panasonic TH-42PHD5 Manuale Utente

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Sample Waveforms 
HY/HZ board 
The pages that follow contain samples of waveforms that are present when the 
unit is in good operating condition. Prior to determining that a board should be 
replaced, it is advisable that these waveforms are checked to help achieve the 
right conclusion.  
 
 
Figure 61 is an illustration of the HZ-Board. The board is the interface between 
the AV inputs and the D1-Board. When troubleshooting, connect a signal source 
to the input terminals and observe the output signals at the connector. 
 
VIDEO/YUV 
CONVERTER 
Figure 61