Pioneer KEH-P6900R Service Manual page 72

KEH-P6900R,P6900R-B,P6910R
- Pin Functions (PD6279A)
Pin No. Pin Name
1-42 SEG41-0
43-46 COM3-0
47-49 V1-3
50 VCC
51 LED
52 SO
53 SI
54 MODE0
55 MODE1
rst
56
57 X0
58 X1
59 VSS
60 REMIN
dim
61
62 GRN/amb
63-66 KDT4-1
67-72 KST6-1
73-82 NC
83-100 SEG59-42
*PD6279A
31
50
72
I/O Function and Operation
O LCD segment output
O LCD common output
I LCD bias power supply
Power supply
Open
O Serial data output
I Serial data input
Connect to GND
Connect to GND
I Reset
Crystal oscillator connection pin
Crystal oscillator connection pin
GND
I Remote control reception
O Dimmer select output
O Green/Amber select output
I Key data input (analogue input)
O Key strobe output
Not used
O LCD segment output
100
81
BR9010FV
NC
1
VCC
2
CS : Chip select input
SK : Serial data clock input
DI : Serial data input
DO : Serial data output
CS
3
WC : Write control input
SK 4
WC
8
GND
7
DO
6
DI
5