Panasonic TY-TP42P8-S, Service Manual

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4. Peak level check
This is to see received level of all phototransistors.
Click “Peak Level” button(D). The received level is shown in the area of “X1”, “X2” and “X3” (TY-TP42P8),”X1”,”X2”, “X3”and
“X4” (TY-TP50P8) for vertical line, “Y1” and “Y2” for horizontal line. If the result of Self Test is NG, the received level of detected
defective line shows as lower than Red line.
Click “Reset” button(E) for ending the Peak level check.
NOTES:
The detection gain is automatically controlled while Touch Panel is operating and Self Test program is running.
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TY-TP42P8-S / TY-TP50P8-S