Akai LTA-26C904, Service Manual

Page: 15 / 50

14
5 P73/TA4IN +5V power
6 P74/TA5OUT Backlight on/off control
7 P80/TB0IN0/INT5 Remote control signal
8 P81/TB0IN1/INT6 +1.8V power supply
9 P82/TB0OUT0 Remote red control signal
10 P83/TB0OUT1 Remote green control signal
11 P90/TXD0 Digital ground
12 P91/RXD0 HDMI identity signal
13 P92/SCLK0/ No connection
14 P93 CON4(10
th
pin)
15 P94 CON4(4
th
pin)
16 P95 CON4(3
rd
pin)
17 AM0 Bus byte selection
18 DVCC +3.3V power
19 X2 Crystal oscillator interface
20 DVSS Ground
21
X1 Crystal oscillator interface
22 AM1 Bus byte selection
23 CPU reset control port
24 P96/XT1 Low frequency oscillation input interface
25 P97/XT2 Low frequency oscillation output interface
26 NMI Interrupt request signal
27 ALE Address latch level
28 P00/AD0
┆ ┆
35 P07/AD7
0~7 bit address/data channel
36
P10/AD8/A8
┆
┆
43
P17/AD15/A15
8~15 bit address/data channel
or 8~15 bit address channel
44
P20/A0/A16
┆
┆
49
P25/A5/A21
8~5 bit address channel
or 8~21 bit address channel
50 P30/ External memory read control terminal
51
P31/ External memory write control terminal (AD0~AD7)
52 P32/ Data write control terminal (AD8~AD15)
53 P40/
54 P41/
55 P42/
Internal address selection signal
56 P60/SCK (no connection)
57 P61/SO/SDA I ² C bus data
58 P62/SI/SCL I
²
C bus clock
59 P63/INT0 Interrupt request signal
60 P50/AN0 KEY control terminal