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6-17. IC PIN FUNCTION DESCRIPTION
• A BOARD IC110 MB89627RPF-G-642-BND (SYSTEM CONTROLLER)
Pin No.
Pin Name
1
SDAI
2
SDAO
3
SCL
4
M.MODE1
5
M.MODE2
6
M.MODE3
7
W.MODE1
8
AD ACC
9
AD BAT
W.MODE2
10
OPEN SEL
11
12
AVCC
13
AVR
14
AVSS
15
NC
16
+B (SW) DET
17
ACC CHK
18
+BAT MIN DET
PICTURE
19
OFF IN
20
XRESET
21
MOD 0
22
MOD 1
23
X0
24
X1
25
VSS
26 to 28 LED 1 to LED 3
29
LED 4
30
POWER CNTL
31
BEEP OUT
32
POWER SW
33
PICTURE OFF
34 to 37
KO 3 to KO 0
38 to 41
KI 3 to KI 0
42
HSEN 0
43
HSEN 1
34
I/O
I
Serial data input from the EEPROM (IC111)
O
Serial data output to the EEPROM (IC111)
O
Shift clock signal output to the EEPROM (IC111)
I
Mode signal (1) input terminal Not used (open)
I
Mode signal (2) input terminal Not used (open)
I
Mode signal (3) input terminal Not used (open)
O
Monitor display selection control signal output to the liquid crystal display module
Accessory voltage detection signal input terminal (A/D input)
I
"L" is input at low voltage
Battery voltage detection signal input terminal (A/D input)
I
"L" is input at low voltage
O
Monitor display selection control signal output to the liquid crystal display module
Model check signal input terminal
I
At the resetting, the signal at this terminal is read to check the model (fixed at "H")
—
Power supply terminal (+5V) (for A/D converter)
I
Reference voltage (+5V) input terminal (for A/D converter)
—
Ground terminal (for A/D converter)
—
Not used (open)
Input terminal to detect the power supply (+12V) from the TV tuner unit
I
"H": power present
I
Accessory detection signal input terminal "H": accessory on
—
Not used (open)
I
Picture off control signal input from the TV tuner unit
System reset signal input from the TV tuner unit, reset signal generator (IC108) and reset switch
I
(S702)
"L": reset "L" is input for several 100 msec after power on, then it changes to "H"
I
Setting terminal for the CPU operational mode (fixed at "H" in this set)
I
Setting terminal for the CPU operational mode (fixed at "H" in this set)
I
Main system clock input terminal (10 MHz)
O
Main system clock output terminal (10 MHz)
—
Ground terminal
O
LED drive signal output terminal "H": LED on Not used (fixed at "L")
O
LED drive signal output of the V OFF (D711) indicator "H": LED on
Power supply (+9V) on/off control signal output of the sensor circuit/motor circuit/panel block
O
"H": power on
O
Beep sound drive signal output terminal
O
Power supply on/off control signal output to the TV tuner unit "H": power on
"H" is output to TL1453CPWR (IC501) in power circuit by the signal input to pin ql to turn off
O
the picture
O
Key send signal output to the key matrix
I
Key return signal input from the key matrix
Set back detect switch (S32) input terminal
I
"L" is input when monitor base is housed completely "H" is input at other position
Push out detect switch (S31) input terminal
I
"L" is input when monitor base comes out to the front ("L" is also input during watching of
picture)
Description
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