Lcd Section; Power Supply Board Section - Panasonic KX-FHD332C Service Manual

7.13. LCD SECTION

The Gate Array (IC301) works only for writing the ASCII code from the data bus (D4~D7). V0 is
supplied for the crystal drive.
R303, R305, and R306 are density control resistors.
Consequently, in this unit, the timing (positive clock) is generated by the LCD interface circuitry
in the gate array (IC301).
DIsplay mode
2 lines (X1. 0)
X1. 5

7.14. POWER SUPPLY BOARD SECTION

Density
LED1 (IC301-22pin)
XLD15 (IC301-21pin)
LED1
XLD15
192
Normal Darker
H L
L L
H H
Hi-Z L