Panasonic gp8du panel replacement Service Manual

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Figure 44. Serviceman Menu 

ma Display television uses the I²C Bus circuitry to control functions and 

stment Mode.) 

When minor adjustments need to be done to the electronic controls, the method 
of entering the serviceman mode is as follows: 
 
Using the Remote Control: 
 
1.  Select SET-UP icon and select CABLE mode. 
2.  Select TIMER icon and set SLEEP time for 30 Min. 
3.  Press “ACTION” twice to exit menus. 
4.  Tune to Channel 124. 
5.  Adjust VOLUME to minimum (0). 
6.  Press VOL down on the receiver. Red “CHK” appears in the upper left 

corner of the screen. 

7.  Select an active station. 
 
Note:  If more than 30 minutes are needed after the receiver is in the 
SERVICEMAN mode, setting the TIMER back to NO can disable the Sleep 
Timer.   
Caution: Prolonged display of patterns WILL cause an after image retention into 
the panel. 
 
The Plasma Display receiver is now in Serviceman Mode. 
 
•  Press Power on the Remote 

Control to display the 
Serviceman Adjustment Menu. 

•  Press Power again on the 

Remote Control to exit the 
Serviceman Adjustment Menu. 

 
 
 

replace many mechanical controls. Instead of adjusting mechanical controls 
individually, many of the control functions are now performed by using “On 

creen Display Menu”. (The Serviceman Adju

S
 
Note: It is suggested that the technician reads all the way through and 
understand the following procedure for Entering/Exiting the Serviceman 
Adjustment Mode. 
 
Entry to Serviceman Mode: