Sharp LC-15B9U-S Service Manual - Page 33

Pin Functions

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1-2. Pin Functions LC-13B8U-S LC-15B8U-S LC-15B9U-SM Pin No. Pin Name I/O 1 P96/ANEX1/Sout4 O 2 P95/ANEX0/CLK4 O 3 P94/DA1/TB4in I 4 P93/DA0/TB3in I 5 P92/TB2in/Sout3 I 6 P91/TB1in/Sin3 I 7 P90/TB0in/CLK3 I 8 BYTE I 9 CNVss I 10 P87/Xcin I O 11 P86/Xcout O O 12 RESET I 13 Xout O 14 Vss I 15 Xin I 16 Vcc1 I 17 P85/NMI I 18 P84/INT2 O 19 P83/INT1 I 20 P82/INT0 I 21 P81/TA4in O 22 P80/TA4out O 23 P77/TA3in O 24 P76/TA3out O 25 P75/TA2in O 26 P74/TA2out O 27 P73/CTS2_/RTS2_/TA1in I/O 28 P72/CLK2/TA1out I/O 29 P71/RxD2/SCL2/TA0in/TB5in I/O 30 P70/TxD2/SDA2/TA0out I/O 31 P67/TxD1/SDA1 O 32 P66/RxD1/SCL1 O 33 P65/CLK1 O 34 P64/CTS1/RTS1/CTS0/CLKS1 O 35 P63/TxD0/SDA0 O 36 P62/RxD0/SCL0 I 37 P61/CLK0 O 38 P60/CTS0/RTS0 O 39 P57/RDY/CLKout O 40 P56/ALE O 41 P55/HOLD I 42 P54/HLDA I(O) 43 P53/BCLK O 44 P52/RD O 45 P51/WRH/BHE O 46 P50/WRL/WR I 47 P47/CS3 O Pin Name Function PC-H D_FIL PC-V CSYNC IREM1 BYTE CNVss Xcin P87 Xcout P86 RESET Xout Vss Xin Vcc1 NMI PSWin VSYNC RS_POWER AC_Ctrl DAC1CS PC signal HS frequency judgment Component filter switching DA (No function) PC signal VS frequency judgment Composite sync signal Remote control signal Connected to GND Connected to GND (connected to Vcc1 for CNVSS at flash write) 32kHz quartz oscillator (for clock count) (No function) 32kHz quartz oscillator (for clock count) (No function) Microprocessor reset at "L" System clock output GND System clock input VDD (+3.3V) (Connected to Vcc1 for NMI at flash write) Main power monitor VSYNC signal input RS, DS control AC adaptor power consumption control Gradation control IC chip select SDA2 SCL2 SCL1 SDA1 TxD RxD SCLK BUSY MPWEL MPOE MPWEH Serial data line 2 for I2C bus 2 system Serial clock line 2 for I2C bus 2 system (EEPROM, AV SW(J), BS TUNER) Serial clock line 1 for I2C bus 2 system (others, AV SW(not J)) Serial data line 1 for I2C bus 2 system (TxD at flash write) (RxD at flash write) (Clock input at flash write) (Busy output at flash write) Data signal input for DVP 4-line serial (MPWEL) Data output signal for DVP 4-line serial (MPOE) Clock for DVP 4-line serial (MPWEH) MAINSW LED power control POWin(EPM) L_ERR S IN/OUT COMP TIMER(RLED) MRDY(CE) LEDPOW(GLED) DC/DC start detect (connected to Vss for EPM at flash write) Fluorescent lamp error detect Audio input/output select AV selector switch On timer LED control (power RLED control for overseas destinations) I2C bus open connection detect (connected to Vcc2 for CE at flash write) Power LED control (common with sub-power control in Japan) (power GLED control for overseas destinations 33

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33
LC-13B8U-S
LC-15B8U-S
LC-15B9U-SM
Pin No.
Pin Name
I/O
Pin Name
Function
1
P96/ANEX1/Sout4
O
2
P95/ANEX0/CLK4
O
3
P94/DA1/TB4in
I
PC-H
PC signal HS frequency judgment
4
P93/DA0/TB3in
I
D_FIL
Component filter switching DA
(No function)
5
P92/TB2in/Sout3
I
PC-V
PC signal VS frequency judgment
6
P91/TB1in/Sin3
I
CSYNC
Composite sync signal
7
P90/TB0in/CLK3
I
IREM1
Remote control signal
8
BYTE
I
BYTE
Connected to GND
9
CNVss
I
CNVss
Connected to GND (connected to Vcc1 for CNVSS at flash write)
10
P87/Xcin
I
Xcin
32kHz quartz oscillator (for clock count)
O
P87
(No function)
11
P86/Xcout
O
Xcout
32kHz quartz oscillator (for clock count)
O
P86
(No function)
12
RESET
I
RESET
Microprocessor reset at "L"
13
Xout
O
Xout
System clock output
14
Vss
I
Vss
GND
15
Xin
I
Xin
System clock input
16
Vcc1
I
Vcc1
VDD (+3.3V)
17
P85/NMI
I
NMI
(Connected to Vcc1 for NMI at flash write)
18
P84/INT2
O
19
P83/INT1
I
PSWin
Main power monitor
20
P82/INT0
I
VSYNC
VSYNC signal input
21
P81/TA4in
O
RS_POWER
RS, DS control
22
P80/TA4out
O
AC_Ctrl
AC adaptor power consumption control
23
P77/TA3in
O
DAC1CS
Gradation control IC chip select
24
P76/TA3out
O
25
P75/TA2in
O
26
P74/TA2out
O
27
P73/CTS2_/RTS2_/TA1in
I/O
SDA2
Serial data line 2 for I2C bus 2 system
28
P72/CLK2/TA1out
I/O
SCL2
Serial clock line 2 for I2C bus 2 system (EEPROM, AV SW(J), BS TUNER)
29
P71/RxD2/SCL2/TA0in/TB5in
I/O
SCL1
Serial clock line 1 for I2C bus 2 system (others, AV SW(not J))
30
P70/TxD2/SDA2/TA0out
I/O
SDA1
Serial data line 1 for I2C bus 2 system
31
P67/TxD1/SDA1
O
TxD
(TxD at flash write)
32
P66/RxD1/SCL1
O
RxD
(RxD at flash write)
33
P65/CLK1
O
SCLK
(Clock input at flash write)
34
P64/CTS1/RTS1/CTS0/CLKS1
O
BUSY
(Busy output at flash write)
35
P63/TxD0/SDA0
O
MPWEL
Data signal input for DVP 4-line serial (MPWEL)
36
P62/RxD0/SCL0
I
MPOE
Data output signal for DVP 4-line serial (MPOE)
37
P61/CLK0
O
MPWEH
Clock for DVP 4-line serial (MPWEH)
38
P60/CTS0/RTS0
O
39
P57/RDY/CLKout
O
MAINSW
LED power control
40
P56/ALE
O
41
P55/HOLD
I
POWin(EPM)
DC/DC start detect (connected to Vss for EPM at flash write)
42
P54/HLDA
I(O)
L_ERR
Fluorescent lamp error detect
43
P53/BCLK
O
S IN/OUT
Audio input/output select
44
P52/RD
O
COMP
AV selector switch
45
P51/WRH/BHE
O
TIMER(RLED)
On timer LED control (power RLED control for overseas destinations)
46
P50/WRL/WR
I
MRDY(CE)
I2C bus open connection detect (connected to Vcc2 for CE at flash write)
47
P47/CS3
O
LEDPOW(GLED)
Power LED control (common with sub-power control in Japan)
(power GLED control for overseas destinations
1-2. Pin Functions