KE-42M1, KE-MV42A1, KE-MV42M1, KE-P42M1 - Sony TV Service Manual (repair manual). Page 39

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6.  Operation Checks After Repair Service 
 
6-1. Check 
Items 
    
xxxxx    
Check Item    
Specification    
Remarks    
TCP  
Drive board 
 
Y Buffer 
 
Logic and Logic Buffer 
Securely connected or tightened 
 
Harness 
Securely connected 
 
Module 
assemble check 
Foreign materials 
No foreign materials 
 
    
    
6-2. Check 
Procedure 
1)  Check visually the following: (1) the module is correctly assembled, (2) the 
connections have no problem, and (3) the grounding and easily short-circuited parts 
are not damaged.   
2)  Check that the dip switch is inside the module. 
3)  Turn on the power of the PDP module, and check that the LED lights up and the unit 
correctly functions. 
4)  Check the power voltages, and also check the display condition by tapping slightly the 
Y-FPC several times.   
5)  Check that Full White pattern is normal. 
6)  If the pattern is abnormal, adjust each voltage using the multi-meter and adjustment 
tools. 
7)  Adjust the waveforms using the oscilloscope. 
8)  Display each pattern image to check the discharge on the screen. 
9)  Vary video level of input signal and make sure image is displayed correctly without 
any problems.
 
 
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