Panasonic gp8du gph8du th-37px50u th-42pd50u th-42px50u th-42px500u th-50px50u th-50px500u troubleshooting Manuale Di Servizio

 

Symptom 1: Picture Noise - Many vertical lines are seen all over the screen. 
Cause:  

The voltage of the address period of the Scan Drive Signal at pin 8 of 
connector SC20/D20 has dropped. The problem is the D board. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
Symptom 2: Picture Noise - Part of the previous picture is visible on the screen. 
Cause:  

The VSET (Initialization) pulse of the Scan Drive signal at pin 9 of 
connector SC20/D20 has dropped. The problem is the D board. 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 

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