Panasonic KX-B620 Service Manual page 45

KX-B620 Series
KX-B520 Series
The LATCH signal is produced by the CPU, and fed to the Thermal Head directly.
Internal
Clock
PAPALLW
INT
Fig. 17 Equivalent Circuit
© Binary Converting section
The gray level signal (DBO—DB4) from the shading correcting and A/D convert LSI (1C109) is
binary converted by the magnitude comparator.
Its signal is gated by PAPW signal.
As a result HDATA is an available signal in the CCD video signal.
Fig. 18 Equivalent Circuit